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Don’t trust interface dermatitis to diagnose dermatomyositis
ORLANDO – (DM), according to David Fiorentino, MD, PhD, professor of dermatology, rheumatology, and immunology at Stanford (Calif.) University.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
Interface dermatitis on skin biopsy is “felt to be almost required by many people to make the diagnosis,” but he and his associates found that it was not present in about a quarter of a cohort of patients with DM. “We don’t want a clinician” to rule out the diagnosis based on its absence on a biopsy, “when its actually quite possible that the patient could have disease,” Dr. Fiorentino said at the International Conference on Cutaneous Lupus Erythematosus.
In general, skin biopsies in DM are tricky. “All of us take them, but we don’t really know how to interpret the information that comes back ... because we don’t really know how often many of [the associated] findings are seen” in DM patients, he noted.
One of the main concerns is to rule out lupus, but interface dermatitis is found in many of its cutaneous forms, as well as in graft-versus-host disease and other diseases.
So what’s a clinician to do? Fortunately, direct immunofluorescence can help. A positive lupus band test helps rule out DM, and the membrane attack complex helps rule it in, both with a good degree of certainty. In a video interview, Dr. Fiorentino explained these tests and how to use them.
Dr. Fiorentino had no relevant disclosures.
aotto@mdedge.com
ORLANDO – (DM), according to David Fiorentino, MD, PhD, professor of dermatology, rheumatology, and immunology at Stanford (Calif.) University.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
Interface dermatitis on skin biopsy is “felt to be almost required by many people to make the diagnosis,” but he and his associates found that it was not present in about a quarter of a cohort of patients with DM. “We don’t want a clinician” to rule out the diagnosis based on its absence on a biopsy, “when its actually quite possible that the patient could have disease,” Dr. Fiorentino said at the International Conference on Cutaneous Lupus Erythematosus.
In general, skin biopsies in DM are tricky. “All of us take them, but we don’t really know how to interpret the information that comes back ... because we don’t really know how often many of [the associated] findings are seen” in DM patients, he noted.
One of the main concerns is to rule out lupus, but interface dermatitis is found in many of its cutaneous forms, as well as in graft-versus-host disease and other diseases.
So what’s a clinician to do? Fortunately, direct immunofluorescence can help. A positive lupus band test helps rule out DM, and the membrane attack complex helps rule it in, both with a good degree of certainty. In a video interview, Dr. Fiorentino explained these tests and how to use them.
Dr. Fiorentino had no relevant disclosures.
aotto@mdedge.com
ORLANDO – (DM), according to David Fiorentino, MD, PhD, professor of dermatology, rheumatology, and immunology at Stanford (Calif.) University.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
Interface dermatitis on skin biopsy is “felt to be almost required by many people to make the diagnosis,” but he and his associates found that it was not present in about a quarter of a cohort of patients with DM. “We don’t want a clinician” to rule out the diagnosis based on its absence on a biopsy, “when its actually quite possible that the patient could have disease,” Dr. Fiorentino said at the International Conference on Cutaneous Lupus Erythematosus.
In general, skin biopsies in DM are tricky. “All of us take them, but we don’t really know how to interpret the information that comes back ... because we don’t really know how often many of [the associated] findings are seen” in DM patients, he noted.
One of the main concerns is to rule out lupus, but interface dermatitis is found in many of its cutaneous forms, as well as in graft-versus-host disease and other diseases.
So what’s a clinician to do? Fortunately, direct immunofluorescence can help. A positive lupus band test helps rule out DM, and the membrane attack complex helps rule it in, both with a good degree of certainty. In a video interview, Dr. Fiorentino explained these tests and how to use them.
Dr. Fiorentino had no relevant disclosures.
aotto@mdedge.com
REPORTING FROM ICCLE 2018
Caution crucial for stem cell transplant in scleroderma, despite potential interest
SANDESTIN, FLA. – An expert called for restraint with the use of stem cell transplantation in scleroderma at the annual Congress of Clinical Rheumatology, emphasizing that the early mortality risk shows that the patient group that should be considered for the treatment is very narrow.
Results published earlier this year found a long-term benefit for myeloablative autologous stem cell transplantation, compared with cyclophosphamide, and were highly encouraging – but only in patients with severe disease (N Engl J Med. 2018;378:35-47). This might prompt patients to express interest in the treatment, many of whom are not suitable, said Janet Pope, MD, chair of rheumatology at St. Joseph’s Health Care in London, Ont.
“Your patients with scleroderma are savvy. They will be on the Internet,” she said. “They know someone who knows someone who told them about it. Most of our patients are not eligible.”
Because of mortality seen in the first year in the stem cell transplant group, the benefit over cyclophosphamide was seen only in subsequent years, Dr. Pope stressed.
Consideration of the approach is only appropriate for patients with early diffuse scleroderma who have a 50% mortality risk over 5 years, Dr. Pope said. Patients in the SCOT trial had a modified Rodnan Skin Score (mRSS) of 30, with an average forced vital capacity of 74%, and 73 of the 75 patients in the trial had lung involvement. Essentially, Dr. Pope said, these are patients with some organ involvement that could be lethal, but not such severe organ involvement that it requires a transplant.
“These are our sick patients,” she said.
The results published this year are even more definitive, Dr. Pope said, considering that they largely meshed with results out of Europe, published in 2014, that showed that the stem cell transplant benefit was not seen after the first year because of early mortality (JAMA. 2014 Jun 25;311[24]:2490-8). In that trial, a 10% mortality risk was seen in the first year in the transplant group, and then a benefit to transplant in the long term over cyclophosphamide.
“These are very complementary positive trials,” Dr. Pope said. “We don’t want to kill 10% of our patients who don’t have perceived high chance of mortality in the next 5 years. ... These patients are highly selected, but I think it gives our patients hope and, for some of my patients, this will be a treatment for them.”
The long-term efficacy is also encouraging in that new but less potent treatments might yield good long-term results without the early deaths, she said. “It gives an idea and hope, and it helps us to understand that maybe with immune modulation, without the nuclear blast of stem cell transplant, maybe we can do better for our patients.”
Dr. Pope reported relevant financial relationships with Actelion, Bayer, Merck, Bristol-Myers Squibb, and Roche.
SANDESTIN, FLA. – An expert called for restraint with the use of stem cell transplantation in scleroderma at the annual Congress of Clinical Rheumatology, emphasizing that the early mortality risk shows that the patient group that should be considered for the treatment is very narrow.
Results published earlier this year found a long-term benefit for myeloablative autologous stem cell transplantation, compared with cyclophosphamide, and were highly encouraging – but only in patients with severe disease (N Engl J Med. 2018;378:35-47). This might prompt patients to express interest in the treatment, many of whom are not suitable, said Janet Pope, MD, chair of rheumatology at St. Joseph’s Health Care in London, Ont.
“Your patients with scleroderma are savvy. They will be on the Internet,” she said. “They know someone who knows someone who told them about it. Most of our patients are not eligible.”
Because of mortality seen in the first year in the stem cell transplant group, the benefit over cyclophosphamide was seen only in subsequent years, Dr. Pope stressed.
Consideration of the approach is only appropriate for patients with early diffuse scleroderma who have a 50% mortality risk over 5 years, Dr. Pope said. Patients in the SCOT trial had a modified Rodnan Skin Score (mRSS) of 30, with an average forced vital capacity of 74%, and 73 of the 75 patients in the trial had lung involvement. Essentially, Dr. Pope said, these are patients with some organ involvement that could be lethal, but not such severe organ involvement that it requires a transplant.
“These are our sick patients,” she said.
The results published this year are even more definitive, Dr. Pope said, considering that they largely meshed with results out of Europe, published in 2014, that showed that the stem cell transplant benefit was not seen after the first year because of early mortality (JAMA. 2014 Jun 25;311[24]:2490-8). In that trial, a 10% mortality risk was seen in the first year in the transplant group, and then a benefit to transplant in the long term over cyclophosphamide.
“These are very complementary positive trials,” Dr. Pope said. “We don’t want to kill 10% of our patients who don’t have perceived high chance of mortality in the next 5 years. ... These patients are highly selected, but I think it gives our patients hope and, for some of my patients, this will be a treatment for them.”
The long-term efficacy is also encouraging in that new but less potent treatments might yield good long-term results without the early deaths, she said. “It gives an idea and hope, and it helps us to understand that maybe with immune modulation, without the nuclear blast of stem cell transplant, maybe we can do better for our patients.”
Dr. Pope reported relevant financial relationships with Actelion, Bayer, Merck, Bristol-Myers Squibb, and Roche.
SANDESTIN, FLA. – An expert called for restraint with the use of stem cell transplantation in scleroderma at the annual Congress of Clinical Rheumatology, emphasizing that the early mortality risk shows that the patient group that should be considered for the treatment is very narrow.
Results published earlier this year found a long-term benefit for myeloablative autologous stem cell transplantation, compared with cyclophosphamide, and were highly encouraging – but only in patients with severe disease (N Engl J Med. 2018;378:35-47). This might prompt patients to express interest in the treatment, many of whom are not suitable, said Janet Pope, MD, chair of rheumatology at St. Joseph’s Health Care in London, Ont.
“Your patients with scleroderma are savvy. They will be on the Internet,” she said. “They know someone who knows someone who told them about it. Most of our patients are not eligible.”
Because of mortality seen in the first year in the stem cell transplant group, the benefit over cyclophosphamide was seen only in subsequent years, Dr. Pope stressed.
Consideration of the approach is only appropriate for patients with early diffuse scleroderma who have a 50% mortality risk over 5 years, Dr. Pope said. Patients in the SCOT trial had a modified Rodnan Skin Score (mRSS) of 30, with an average forced vital capacity of 74%, and 73 of the 75 patients in the trial had lung involvement. Essentially, Dr. Pope said, these are patients with some organ involvement that could be lethal, but not such severe organ involvement that it requires a transplant.
“These are our sick patients,” she said.
The results published this year are even more definitive, Dr. Pope said, considering that they largely meshed with results out of Europe, published in 2014, that showed that the stem cell transplant benefit was not seen after the first year because of early mortality (JAMA. 2014 Jun 25;311[24]:2490-8). In that trial, a 10% mortality risk was seen in the first year in the transplant group, and then a benefit to transplant in the long term over cyclophosphamide.
“These are very complementary positive trials,” Dr. Pope said. “We don’t want to kill 10% of our patients who don’t have perceived high chance of mortality in the next 5 years. ... These patients are highly selected, but I think it gives our patients hope and, for some of my patients, this will be a treatment for them.”
The long-term efficacy is also encouraging in that new but less potent treatments might yield good long-term results without the early deaths, she said. “It gives an idea and hope, and it helps us to understand that maybe with immune modulation, without the nuclear blast of stem cell transplant, maybe we can do better for our patients.”
Dr. Pope reported relevant financial relationships with Actelion, Bayer, Merck, Bristol-Myers Squibb, and Roche.
EXPERT ANALYSIS FROM CCR 18
New agents may bring hope for SLE patients
SANDESTIN, FLA. – Several drugs approved for other conditions may also have good effect in patients with systemic lupus erythematosus, Michelle Petri, MD, said in an interview at the annual Congress of Clinical Rheumatology.
The molecules target several different disease pathways, said Dr. Petri, director of the Hopkins Lupus Center at Johns Hopkins University, Baltimore.
Ustekinumab (Stelara) has accumulated the most data so far. A phase 2 study presented last fall at the annual meeting of the American College of Rheumatology found that it conferred significant benefits relative to placebo, including a 60% responder rate (29% better than placebo), a significantly lower flare rate, and improvements in musculoskeletal and mucocutaneous disease features. The rate of serious adverse events was acceptable (8.3% vs. 9.5% for placebo).
Baricitinib is also being investigated in SLE, Dr. Petri said. A phase 2 study conducted by Eli Lilly closed late last year and will be reported on June 13 at the European League Against Rheumatism’s opening plenary session (Wallace et al. EULAR 2018 abstract OP0019).
The three-armed, placebo-controlled study comprised 314 patients who were randomized to placebo or one of two baricitinib doses, given orally for 24 weeks. The primary outcome was remission of arthritis and/or rash as measured by the SLE Disease Activity Index 2000 (SLEDAI-2K). Secondary endpoints included responder rate, change from baseline in the SLEDAI-2K, change in the Global Assessment of Disease Activity score, and pharmacokinetic measures.
Dr. Petri disclosed relationships with Amgen, Boston Pharmaceuticals, Bristol-Myers Squibb, EMD Serono, Janssen, Novartis, and GlaxoSmithKline.
SANDESTIN, FLA. – Several drugs approved for other conditions may also have good effect in patients with systemic lupus erythematosus, Michelle Petri, MD, said in an interview at the annual Congress of Clinical Rheumatology.
The molecules target several different disease pathways, said Dr. Petri, director of the Hopkins Lupus Center at Johns Hopkins University, Baltimore.
Ustekinumab (Stelara) has accumulated the most data so far. A phase 2 study presented last fall at the annual meeting of the American College of Rheumatology found that it conferred significant benefits relative to placebo, including a 60% responder rate (29% better than placebo), a significantly lower flare rate, and improvements in musculoskeletal and mucocutaneous disease features. The rate of serious adverse events was acceptable (8.3% vs. 9.5% for placebo).
Baricitinib is also being investigated in SLE, Dr. Petri said. A phase 2 study conducted by Eli Lilly closed late last year and will be reported on June 13 at the European League Against Rheumatism’s opening plenary session (Wallace et al. EULAR 2018 abstract OP0019).
The three-armed, placebo-controlled study comprised 314 patients who were randomized to placebo or one of two baricitinib doses, given orally for 24 weeks. The primary outcome was remission of arthritis and/or rash as measured by the SLE Disease Activity Index 2000 (SLEDAI-2K). Secondary endpoints included responder rate, change from baseline in the SLEDAI-2K, change in the Global Assessment of Disease Activity score, and pharmacokinetic measures.
Dr. Petri disclosed relationships with Amgen, Boston Pharmaceuticals, Bristol-Myers Squibb, EMD Serono, Janssen, Novartis, and GlaxoSmithKline.
SANDESTIN, FLA. – Several drugs approved for other conditions may also have good effect in patients with systemic lupus erythematosus, Michelle Petri, MD, said in an interview at the annual Congress of Clinical Rheumatology.
The molecules target several different disease pathways, said Dr. Petri, director of the Hopkins Lupus Center at Johns Hopkins University, Baltimore.
Ustekinumab (Stelara) has accumulated the most data so far. A phase 2 study presented last fall at the annual meeting of the American College of Rheumatology found that it conferred significant benefits relative to placebo, including a 60% responder rate (29% better than placebo), a significantly lower flare rate, and improvements in musculoskeletal and mucocutaneous disease features. The rate of serious adverse events was acceptable (8.3% vs. 9.5% for placebo).
Baricitinib is also being investigated in SLE, Dr. Petri said. A phase 2 study conducted by Eli Lilly closed late last year and will be reported on June 13 at the European League Against Rheumatism’s opening plenary session (Wallace et al. EULAR 2018 abstract OP0019).
The three-armed, placebo-controlled study comprised 314 patients who were randomized to placebo or one of two baricitinib doses, given orally for 24 weeks. The primary outcome was remission of arthritis and/or rash as measured by the SLE Disease Activity Index 2000 (SLEDAI-2K). Secondary endpoints included responder rate, change from baseline in the SLEDAI-2K, change in the Global Assessment of Disease Activity score, and pharmacokinetic measures.
Dr. Petri disclosed relationships with Amgen, Boston Pharmaceuticals, Bristol-Myers Squibb, EMD Serono, Janssen, Novartis, and GlaxoSmithKline.
EXPERT ANALYSIS FROM CCR 18
VIDEO: Skin exam crucial in rheumatic diseases, expert says
SANDESTIN, FLA. – Even when you know a patient’s serology and hear their symptoms and think you have a bead on their rheumatic disease, you might not. It’s vital to check the skin in patients with rheumatic disease to be sure the right disease is being treated and that they don’t actually have a more severe condition that might progress suddenly if left unchecked, said Alisa Femia, MD, assistant professor of dermatology at the annual Congress of Clinical Rheumatology.
In a session filled with pearls for rheumatologists on what to look for on their patients’ skin to help guide diagnosis and treatment, she told the story of a woman whom a rheumatologist colleague had correctly diagnosed with dermatomyositis. She was started on prednisone and mycophenolate mofetil, but her skin disease did not clear.
After examining her skin, Dr. Femia became immediately concerned.
“Despite prednisone, despite mycophenolate, here not only does she have Gottron’s papules, but she has erosions within her Gottron’s papules,” Dr. Femia said. The woman also had erosions within papules on her palms.
These were telltale signs of MDA5-associated dermatomyositis, which studies have found to be linked with interstitial lung disease (J Am Acad Dermatol. 2011 Jul;65[1]:25-34). Under her care, these patients ideally undergo lung monitoring every 3 months, Dr. Femia said.
“That is a form of dermatomyositis that you cannot miss,” she said.
The effects of discoid lupus are another reason to take special care in skin examination. Once the disease, which involves a scaling of the skin, is obvious, there can be permanent aesthetic effects that could have been avoided with earlier detection and treatment, Dr. Femia said.
Clinicians should also be on the lookout for volume loss, or contour change, in discoid lupus patients, because that’s a sign of lupus panniculitis, which involves deeper lesions mainly to fatty areas such as the cheeks or thighs. The disease can progress fast, with sudden, massive loss of body volume, so therapy should be escalated quickly, she said.
“We want to treat these patients aggressively in order to avoid this.”
SOURCE: Femia A. CCR 2018.
SANDESTIN, FLA. – Even when you know a patient’s serology and hear their symptoms and think you have a bead on their rheumatic disease, you might not. It’s vital to check the skin in patients with rheumatic disease to be sure the right disease is being treated and that they don’t actually have a more severe condition that might progress suddenly if left unchecked, said Alisa Femia, MD, assistant professor of dermatology at the annual Congress of Clinical Rheumatology.
In a session filled with pearls for rheumatologists on what to look for on their patients’ skin to help guide diagnosis and treatment, she told the story of a woman whom a rheumatologist colleague had correctly diagnosed with dermatomyositis. She was started on prednisone and mycophenolate mofetil, but her skin disease did not clear.
After examining her skin, Dr. Femia became immediately concerned.
“Despite prednisone, despite mycophenolate, here not only does she have Gottron’s papules, but she has erosions within her Gottron’s papules,” Dr. Femia said. The woman also had erosions within papules on her palms.
These were telltale signs of MDA5-associated dermatomyositis, which studies have found to be linked with interstitial lung disease (J Am Acad Dermatol. 2011 Jul;65[1]:25-34). Under her care, these patients ideally undergo lung monitoring every 3 months, Dr. Femia said.
“That is a form of dermatomyositis that you cannot miss,” she said.
The effects of discoid lupus are another reason to take special care in skin examination. Once the disease, which involves a scaling of the skin, is obvious, there can be permanent aesthetic effects that could have been avoided with earlier detection and treatment, Dr. Femia said.
Clinicians should also be on the lookout for volume loss, or contour change, in discoid lupus patients, because that’s a sign of lupus panniculitis, which involves deeper lesions mainly to fatty areas such as the cheeks or thighs. The disease can progress fast, with sudden, massive loss of body volume, so therapy should be escalated quickly, she said.
“We want to treat these patients aggressively in order to avoid this.”
SOURCE: Femia A. CCR 2018.
SANDESTIN, FLA. – Even when you know a patient’s serology and hear their symptoms and think you have a bead on their rheumatic disease, you might not. It’s vital to check the skin in patients with rheumatic disease to be sure the right disease is being treated and that they don’t actually have a more severe condition that might progress suddenly if left unchecked, said Alisa Femia, MD, assistant professor of dermatology at the annual Congress of Clinical Rheumatology.
In a session filled with pearls for rheumatologists on what to look for on their patients’ skin to help guide diagnosis and treatment, she told the story of a woman whom a rheumatologist colleague had correctly diagnosed with dermatomyositis. She was started on prednisone and mycophenolate mofetil, but her skin disease did not clear.
After examining her skin, Dr. Femia became immediately concerned.
“Despite prednisone, despite mycophenolate, here not only does she have Gottron’s papules, but she has erosions within her Gottron’s papules,” Dr. Femia said. The woman also had erosions within papules on her palms.
These were telltale signs of MDA5-associated dermatomyositis, which studies have found to be linked with interstitial lung disease (J Am Acad Dermatol. 2011 Jul;65[1]:25-34). Under her care, these patients ideally undergo lung monitoring every 3 months, Dr. Femia said.
“That is a form of dermatomyositis that you cannot miss,” she said.
The effects of discoid lupus are another reason to take special care in skin examination. Once the disease, which involves a scaling of the skin, is obvious, there can be permanent aesthetic effects that could have been avoided with earlier detection and treatment, Dr. Femia said.
Clinicians should also be on the lookout for volume loss, or contour change, in discoid lupus patients, because that’s a sign of lupus panniculitis, which involves deeper lesions mainly to fatty areas such as the cheeks or thighs. The disease can progress fast, with sudden, massive loss of body volume, so therapy should be escalated quickly, she said.
“We want to treat these patients aggressively in order to avoid this.”
SOURCE: Femia A. CCR 2018.
EXPERT ANALYSIS AT CCR 18
Dermatology practice gaps: improving medication management
KAUAI, HAWAII – Dermatologists don’t ordinarily peruse the ophthalmology literature. So they may be unaware that the American Academy of Ophthalmology has issued Erik J. Stratman, MD, noted at the Hawaii Dermatology Seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation.
Most dermatologists routinely dose hydroxychloroquine at 400 mg/day, regardless of body weight. The former AAO recommendation, which dates back to 2011, called for dosing at up to 6.5 mg/kg of ideal body weight or 400 mg/day, whichever is lower. However, the AAO recommendation has changed in light of a large, retrospective case-control study that suggested this practice may be overdosing thin patients – thereby exposing them to increased risk of retinal toxicity and other drug-related adverse events – while at the same time possibly underdosing some obese patients, said Dr. Stratman, chairman of the department of dermatology at the Marshfield (Wisc.) Clinic.
This was one of two dermatology practice gaps he highlighted involving suboptimal medication management, the other being most dermatologists’ failure to protect their patients’ gut when prescribing prednisone.
“I think the push over the last 5 years has been ‘protect the bones, protect the bones, protect the bones.’ We’ve done better and better about protecting the bones and getting that into our conversations with patients on prednisone. But we’re not thinking so much about the gut,” the dermatologist said.
Hydroxychloroquine dosing
The former AAO recommendation was revised in response to a retrospective case-control study of retinal toxicity rates in 2,361 patients on the drug continuously for longer than 5 years. The study demonstrated that the risk of retinopathy jumped 5.7-fold with daily consumption of hydroxychloroquine at more than 5.0 mg/kg (JAMA Ophthalmol. 2014 Dec;132[12]:1453-60).
The current AAO recommendation (Ophthalmology. 2016 Jun;123[6]:1386-94) is to dose hydroxychloroquine at a daily maximum of 5.0 mg/kg of real weight, which correlated better with retinopathy risk in the case-control study than did ideal body weight. Hydroxychloroquine doesn’t accumulate well in fat.
Until now, most dermatologists have not routinely measured patients’ body weight in the office or calculated their body mass index. But Dr. Stratman advised against reliance upon a patient’s self-reported body weight, which may diverge substantially from reality. “Get yourself a good office scale – they’re not that expensive – and use it when prescribing drugs with a tight therapeutic window,” he urged.
Another key to minimizing retinopathy risk in patients on hydroxychloroquine is to pay careful attention to how long they’ve been on the drug. As the years go by in patients being treated for cutaneous lupus or other dermatologic disorders where decades-long therapy is often a mainstay, it’s important to check with patients and make sure they’re getting annual ophthalmologic screening for irreversible retinal toxicity by both threshold visual fields and spectral domain optical coherence tomography. In the large, practice-changing retrospective study, patients on hydroxychloroquine at 4.0-5.0 mg/kg daily had a prevalence of retinopathy of less than 2% during the first 10 years of therapy, but the rate shot up to nearly 20% after 20 years of use, Dr. Stratman observed.
He highlighted as helpful an updated review of the use of hydroxychloroquine in dermatology recently published by Anthony P. Fernandez, MD, PhD, of the department of dermatology at the Cleveland Clinic (J Am Acad Dermatol. 2017 Jun;76[6]:1176-82).
Dr. Fernandez recommends following the AAO guidance to dose the drug at 5.0 mg/kg or less of actual body weight in thin or normal-weight patients; however, he departed from the ophthalmologists with regard to treatment of obese patients. Because dosing based on actual weight could potentially lead to relative overdosing in obese patients, in that growing population he recommends calculating the dose based upon 5.0 mg/kg of actual body weight, as well as the dose based on 6.5 mg/kg of ideal body weight, then prescribing the lower of the two, up to a maximum of 400 mg/day.
“The current recommendation is really about not overdosing thin patients. Basically, dosing is not so difficult for obese people because if you weigh more than 175 pounds, you’re going to get 400 mg/day,” Dr. Stratman explained.
That 400 mg/day ceiling is not cast in stone, he continued. The guideline recommends that, if a patient is a nonresponder to several months of hydroxychloroquine at 400 mg/day, it’s worthwhile to order a drug blood level. If it’s not above the efficacy threshold of more than 750 ng/mL, it’s appropriate to titrate up.
Protecting against prednisone-induced gastritis
“We underprotect the gut,” Dr. Stratman asserted.
He referred to a recent comprehensive dermatologic review of the prevention and management of glucocorticoid-related side effects, especially the part on peptic ulcer disease (J Am Acad Dermatol. 2017 Jan;76[1]:11-6). This is an issue that heretofore hadn’t been much emphasized in the dermatology literature.
“I read this and thought, ‘Gosh, I’m not really having a conversation with my patients about a review of systems for gut protection as I should. And I certainly haven’t been thinking about prescribing PPIs [proton pump inhibitors] for my patients,’” he recalled.
Dr. Stratman polled his Hawaii Dermatology Seminar audience as to who had ever prescribed a PPI. Most indicated with their electronic clickers that they had never done so.
“This is what a practice gap is,” he commented. “You read the literature and you say, ‘Oh, I guess that makes sense. Maybe I should be doing that more often, or making sure it gets done.’”
“I don’t want to come across as saying, ‘For everybody we put on prednisone we should be giving vitamin D, calcium, and a PPI.’ That’s not the message. The message is, assess your patient – or make sure your patient is being assessed – for risk of peptic ulcer disease. And if you don’t feel comfortable prescribing a PPI, please get the patient connected with their primary care provider, who should,” Dr. Stratman said.
The authors of the dermatology review made a case for screening for GI risk factors in every patient who is going to receive an oral glucocorticoid. The ones who absolutely should be prescribed a PPI unless contraindicated include patients who are taking daily aspirin or NSAIDs for an essential reason, such as cardiovascular protection or significant arthritic pain. The authors suggest consideration of a PPI in patients with other, less potent risk factors for peptic ulcer disease, including a history of ulcer disease, gastroesophageal reflux disease, Barrett’s esophagus, heavy smoking, heavy alcohol consumption, age greater than 65, and concomitant use of other medications with an associated risk of peptic ulcer disease – such as bisphosphonates, “which you may have just put them on to protect their bones,” Dr. Stratman noted.
Of course, PPIs come with side effects of their own, including increased fracture risk, Clostridium difficile infections, and rebound acid secretion.
Dr. Stratman reported having no financial conflicts regarding his presentation.
SDEF/Global Academy for Medical Education and this news organization are owned by the same parent company.
KAUAI, HAWAII – Dermatologists don’t ordinarily peruse the ophthalmology literature. So they may be unaware that the American Academy of Ophthalmology has issued Erik J. Stratman, MD, noted at the Hawaii Dermatology Seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation.
Most dermatologists routinely dose hydroxychloroquine at 400 mg/day, regardless of body weight. The former AAO recommendation, which dates back to 2011, called for dosing at up to 6.5 mg/kg of ideal body weight or 400 mg/day, whichever is lower. However, the AAO recommendation has changed in light of a large, retrospective case-control study that suggested this practice may be overdosing thin patients – thereby exposing them to increased risk of retinal toxicity and other drug-related adverse events – while at the same time possibly underdosing some obese patients, said Dr. Stratman, chairman of the department of dermatology at the Marshfield (Wisc.) Clinic.
This was one of two dermatology practice gaps he highlighted involving suboptimal medication management, the other being most dermatologists’ failure to protect their patients’ gut when prescribing prednisone.
“I think the push over the last 5 years has been ‘protect the bones, protect the bones, protect the bones.’ We’ve done better and better about protecting the bones and getting that into our conversations with patients on prednisone. But we’re not thinking so much about the gut,” the dermatologist said.
Hydroxychloroquine dosing
The former AAO recommendation was revised in response to a retrospective case-control study of retinal toxicity rates in 2,361 patients on the drug continuously for longer than 5 years. The study demonstrated that the risk of retinopathy jumped 5.7-fold with daily consumption of hydroxychloroquine at more than 5.0 mg/kg (JAMA Ophthalmol. 2014 Dec;132[12]:1453-60).
The current AAO recommendation (Ophthalmology. 2016 Jun;123[6]:1386-94) is to dose hydroxychloroquine at a daily maximum of 5.0 mg/kg of real weight, which correlated better with retinopathy risk in the case-control study than did ideal body weight. Hydroxychloroquine doesn’t accumulate well in fat.
Until now, most dermatologists have not routinely measured patients’ body weight in the office or calculated their body mass index. But Dr. Stratman advised against reliance upon a patient’s self-reported body weight, which may diverge substantially from reality. “Get yourself a good office scale – they’re not that expensive – and use it when prescribing drugs with a tight therapeutic window,” he urged.
Another key to minimizing retinopathy risk in patients on hydroxychloroquine is to pay careful attention to how long they’ve been on the drug. As the years go by in patients being treated for cutaneous lupus or other dermatologic disorders where decades-long therapy is often a mainstay, it’s important to check with patients and make sure they’re getting annual ophthalmologic screening for irreversible retinal toxicity by both threshold visual fields and spectral domain optical coherence tomography. In the large, practice-changing retrospective study, patients on hydroxychloroquine at 4.0-5.0 mg/kg daily had a prevalence of retinopathy of less than 2% during the first 10 years of therapy, but the rate shot up to nearly 20% after 20 years of use, Dr. Stratman observed.
He highlighted as helpful an updated review of the use of hydroxychloroquine in dermatology recently published by Anthony P. Fernandez, MD, PhD, of the department of dermatology at the Cleveland Clinic (J Am Acad Dermatol. 2017 Jun;76[6]:1176-82).
Dr. Fernandez recommends following the AAO guidance to dose the drug at 5.0 mg/kg or less of actual body weight in thin or normal-weight patients; however, he departed from the ophthalmologists with regard to treatment of obese patients. Because dosing based on actual weight could potentially lead to relative overdosing in obese patients, in that growing population he recommends calculating the dose based upon 5.0 mg/kg of actual body weight, as well as the dose based on 6.5 mg/kg of ideal body weight, then prescribing the lower of the two, up to a maximum of 400 mg/day.
“The current recommendation is really about not overdosing thin patients. Basically, dosing is not so difficult for obese people because if you weigh more than 175 pounds, you’re going to get 400 mg/day,” Dr. Stratman explained.
That 400 mg/day ceiling is not cast in stone, he continued. The guideline recommends that, if a patient is a nonresponder to several months of hydroxychloroquine at 400 mg/day, it’s worthwhile to order a drug blood level. If it’s not above the efficacy threshold of more than 750 ng/mL, it’s appropriate to titrate up.
Protecting against prednisone-induced gastritis
“We underprotect the gut,” Dr. Stratman asserted.
He referred to a recent comprehensive dermatologic review of the prevention and management of glucocorticoid-related side effects, especially the part on peptic ulcer disease (J Am Acad Dermatol. 2017 Jan;76[1]:11-6). This is an issue that heretofore hadn’t been much emphasized in the dermatology literature.
“I read this and thought, ‘Gosh, I’m not really having a conversation with my patients about a review of systems for gut protection as I should. And I certainly haven’t been thinking about prescribing PPIs [proton pump inhibitors] for my patients,’” he recalled.
Dr. Stratman polled his Hawaii Dermatology Seminar audience as to who had ever prescribed a PPI. Most indicated with their electronic clickers that they had never done so.
“This is what a practice gap is,” he commented. “You read the literature and you say, ‘Oh, I guess that makes sense. Maybe I should be doing that more often, or making sure it gets done.’”
“I don’t want to come across as saying, ‘For everybody we put on prednisone we should be giving vitamin D, calcium, and a PPI.’ That’s not the message. The message is, assess your patient – or make sure your patient is being assessed – for risk of peptic ulcer disease. And if you don’t feel comfortable prescribing a PPI, please get the patient connected with their primary care provider, who should,” Dr. Stratman said.
The authors of the dermatology review made a case for screening for GI risk factors in every patient who is going to receive an oral glucocorticoid. The ones who absolutely should be prescribed a PPI unless contraindicated include patients who are taking daily aspirin or NSAIDs for an essential reason, such as cardiovascular protection or significant arthritic pain. The authors suggest consideration of a PPI in patients with other, less potent risk factors for peptic ulcer disease, including a history of ulcer disease, gastroesophageal reflux disease, Barrett’s esophagus, heavy smoking, heavy alcohol consumption, age greater than 65, and concomitant use of other medications with an associated risk of peptic ulcer disease – such as bisphosphonates, “which you may have just put them on to protect their bones,” Dr. Stratman noted.
Of course, PPIs come with side effects of their own, including increased fracture risk, Clostridium difficile infections, and rebound acid secretion.
Dr. Stratman reported having no financial conflicts regarding his presentation.
SDEF/Global Academy for Medical Education and this news organization are owned by the same parent company.
KAUAI, HAWAII – Dermatologists don’t ordinarily peruse the ophthalmology literature. So they may be unaware that the American Academy of Ophthalmology has issued Erik J. Stratman, MD, noted at the Hawaii Dermatology Seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation.
Most dermatologists routinely dose hydroxychloroquine at 400 mg/day, regardless of body weight. The former AAO recommendation, which dates back to 2011, called for dosing at up to 6.5 mg/kg of ideal body weight or 400 mg/day, whichever is lower. However, the AAO recommendation has changed in light of a large, retrospective case-control study that suggested this practice may be overdosing thin patients – thereby exposing them to increased risk of retinal toxicity and other drug-related adverse events – while at the same time possibly underdosing some obese patients, said Dr. Stratman, chairman of the department of dermatology at the Marshfield (Wisc.) Clinic.
This was one of two dermatology practice gaps he highlighted involving suboptimal medication management, the other being most dermatologists’ failure to protect their patients’ gut when prescribing prednisone.
“I think the push over the last 5 years has been ‘protect the bones, protect the bones, protect the bones.’ We’ve done better and better about protecting the bones and getting that into our conversations with patients on prednisone. But we’re not thinking so much about the gut,” the dermatologist said.
Hydroxychloroquine dosing
The former AAO recommendation was revised in response to a retrospective case-control study of retinal toxicity rates in 2,361 patients on the drug continuously for longer than 5 years. The study demonstrated that the risk of retinopathy jumped 5.7-fold with daily consumption of hydroxychloroquine at more than 5.0 mg/kg (JAMA Ophthalmol. 2014 Dec;132[12]:1453-60).
The current AAO recommendation (Ophthalmology. 2016 Jun;123[6]:1386-94) is to dose hydroxychloroquine at a daily maximum of 5.0 mg/kg of real weight, which correlated better with retinopathy risk in the case-control study than did ideal body weight. Hydroxychloroquine doesn’t accumulate well in fat.
Until now, most dermatologists have not routinely measured patients’ body weight in the office or calculated their body mass index. But Dr. Stratman advised against reliance upon a patient’s self-reported body weight, which may diverge substantially from reality. “Get yourself a good office scale – they’re not that expensive – and use it when prescribing drugs with a tight therapeutic window,” he urged.
Another key to minimizing retinopathy risk in patients on hydroxychloroquine is to pay careful attention to how long they’ve been on the drug. As the years go by in patients being treated for cutaneous lupus or other dermatologic disorders where decades-long therapy is often a mainstay, it’s important to check with patients and make sure they’re getting annual ophthalmologic screening for irreversible retinal toxicity by both threshold visual fields and spectral domain optical coherence tomography. In the large, practice-changing retrospective study, patients on hydroxychloroquine at 4.0-5.0 mg/kg daily had a prevalence of retinopathy of less than 2% during the first 10 years of therapy, but the rate shot up to nearly 20% after 20 years of use, Dr. Stratman observed.
He highlighted as helpful an updated review of the use of hydroxychloroquine in dermatology recently published by Anthony P. Fernandez, MD, PhD, of the department of dermatology at the Cleveland Clinic (J Am Acad Dermatol. 2017 Jun;76[6]:1176-82).
Dr. Fernandez recommends following the AAO guidance to dose the drug at 5.0 mg/kg or less of actual body weight in thin or normal-weight patients; however, he departed from the ophthalmologists with regard to treatment of obese patients. Because dosing based on actual weight could potentially lead to relative overdosing in obese patients, in that growing population he recommends calculating the dose based upon 5.0 mg/kg of actual body weight, as well as the dose based on 6.5 mg/kg of ideal body weight, then prescribing the lower of the two, up to a maximum of 400 mg/day.
“The current recommendation is really about not overdosing thin patients. Basically, dosing is not so difficult for obese people because if you weigh more than 175 pounds, you’re going to get 400 mg/day,” Dr. Stratman explained.
That 400 mg/day ceiling is not cast in stone, he continued. The guideline recommends that, if a patient is a nonresponder to several months of hydroxychloroquine at 400 mg/day, it’s worthwhile to order a drug blood level. If it’s not above the efficacy threshold of more than 750 ng/mL, it’s appropriate to titrate up.
Protecting against prednisone-induced gastritis
“We underprotect the gut,” Dr. Stratman asserted.
He referred to a recent comprehensive dermatologic review of the prevention and management of glucocorticoid-related side effects, especially the part on peptic ulcer disease (J Am Acad Dermatol. 2017 Jan;76[1]:11-6). This is an issue that heretofore hadn’t been much emphasized in the dermatology literature.
“I read this and thought, ‘Gosh, I’m not really having a conversation with my patients about a review of systems for gut protection as I should. And I certainly haven’t been thinking about prescribing PPIs [proton pump inhibitors] for my patients,’” he recalled.
Dr. Stratman polled his Hawaii Dermatology Seminar audience as to who had ever prescribed a PPI. Most indicated with their electronic clickers that they had never done so.
“This is what a practice gap is,” he commented. “You read the literature and you say, ‘Oh, I guess that makes sense. Maybe I should be doing that more often, or making sure it gets done.’”
“I don’t want to come across as saying, ‘For everybody we put on prednisone we should be giving vitamin D, calcium, and a PPI.’ That’s not the message. The message is, assess your patient – or make sure your patient is being assessed – for risk of peptic ulcer disease. And if you don’t feel comfortable prescribing a PPI, please get the patient connected with their primary care provider, who should,” Dr. Stratman said.
The authors of the dermatology review made a case for screening for GI risk factors in every patient who is going to receive an oral glucocorticoid. The ones who absolutely should be prescribed a PPI unless contraindicated include patients who are taking daily aspirin or NSAIDs for an essential reason, such as cardiovascular protection or significant arthritic pain. The authors suggest consideration of a PPI in patients with other, less potent risk factors for peptic ulcer disease, including a history of ulcer disease, gastroesophageal reflux disease, Barrett’s esophagus, heavy smoking, heavy alcohol consumption, age greater than 65, and concomitant use of other medications with an associated risk of peptic ulcer disease – such as bisphosphonates, “which you may have just put them on to protect their bones,” Dr. Stratman noted.
Of course, PPIs come with side effects of their own, including increased fracture risk, Clostridium difficile infections, and rebound acid secretion.
Dr. Stratman reported having no financial conflicts regarding his presentation.
SDEF/Global Academy for Medical Education and this news organization are owned by the same parent company.
EXPERT ANALYSIS FROM SDEF HAWAII DERMATOLOGY SEMINAR
Bacteria seen as potential lupus triggers
A new study points to bacteria commonly found in the human microbiome as possible culprits in the quest to identify the elusive triggers of autoantibodies present in patients with systemic lupus erythematosus (SLE).
Anti-Ro antibodies, including anti-Ro60 antibodies, are found in about half of SLE patients, and are the most common antinuclear antibodies that can be seen preclinically. They are also pathogenic.
In a proof-of-concept study, a Yale-led research team collected microbiome samples from eight SLE patients who were positive for anti-Ro60 autoantibodies, five SLE patients who were anti-Ro60-negative, and seven healthy controls. The researchers took samples from the mouth, sternum, and stool. They found that commensal bacteria containing orthologs to Ro60 were found commonly in all of the patient groups. These included Propionibacterium propionicus, Corynebacterium amycolatum, Actinomyces massiliensis, and Bacteroides thetaiotaomicron, reported Teri M. Greiling, MD, PhD, of Yale University, New Haven, Conn., and her associates.
They also found that CD4 memory T-cell clones from lupus patients that were specific to Ro60 autoantigen were stimulated by Ro60-containing bacteria.
Researchers also colonized two groups of mice with B. thetaiotaomicron – mice with a lupuslike syndrome induced with the immune-response modifier imiquimod and those without this syndrome induced. The levels of anti-Ro60 antibodies were increased in those with the syndrome. Plus, lupus nephritislike complex depositions were seen in 88% of the glomeruli of the imiquimod-treated mice and in just 8% of those not treated with imiquimod.
“These data,” the researchers said, “suggest that Ro60 orthologs from human commensal bacteria may initiate and drive lupus pathogenesis.”
The study authors reported they had nothing to disclose. The work was supported by various grants from the National Institutes of Health, Arthritis National Research Foundation, the Arthritis Foundation, and the Lupus Research Institute, as well as NIH Intramural Research Programs.
SOURCE: Greiling TM et al. Sci Transl Med. 2018;10(434). doi: 10.1126/scitranslmed.aan2306.
A new study points to bacteria commonly found in the human microbiome as possible culprits in the quest to identify the elusive triggers of autoantibodies present in patients with systemic lupus erythematosus (SLE).
Anti-Ro antibodies, including anti-Ro60 antibodies, are found in about half of SLE patients, and are the most common antinuclear antibodies that can be seen preclinically. They are also pathogenic.
In a proof-of-concept study, a Yale-led research team collected microbiome samples from eight SLE patients who were positive for anti-Ro60 autoantibodies, five SLE patients who were anti-Ro60-negative, and seven healthy controls. The researchers took samples from the mouth, sternum, and stool. They found that commensal bacteria containing orthologs to Ro60 were found commonly in all of the patient groups. These included Propionibacterium propionicus, Corynebacterium amycolatum, Actinomyces massiliensis, and Bacteroides thetaiotaomicron, reported Teri M. Greiling, MD, PhD, of Yale University, New Haven, Conn., and her associates.
They also found that CD4 memory T-cell clones from lupus patients that were specific to Ro60 autoantigen were stimulated by Ro60-containing bacteria.
Researchers also colonized two groups of mice with B. thetaiotaomicron – mice with a lupuslike syndrome induced with the immune-response modifier imiquimod and those without this syndrome induced. The levels of anti-Ro60 antibodies were increased in those with the syndrome. Plus, lupus nephritislike complex depositions were seen in 88% of the glomeruli of the imiquimod-treated mice and in just 8% of those not treated with imiquimod.
“These data,” the researchers said, “suggest that Ro60 orthologs from human commensal bacteria may initiate and drive lupus pathogenesis.”
The study authors reported they had nothing to disclose. The work was supported by various grants from the National Institutes of Health, Arthritis National Research Foundation, the Arthritis Foundation, and the Lupus Research Institute, as well as NIH Intramural Research Programs.
SOURCE: Greiling TM et al. Sci Transl Med. 2018;10(434). doi: 10.1126/scitranslmed.aan2306.
A new study points to bacteria commonly found in the human microbiome as possible culprits in the quest to identify the elusive triggers of autoantibodies present in patients with systemic lupus erythematosus (SLE).
Anti-Ro antibodies, including anti-Ro60 antibodies, are found in about half of SLE patients, and are the most common antinuclear antibodies that can be seen preclinically. They are also pathogenic.
In a proof-of-concept study, a Yale-led research team collected microbiome samples from eight SLE patients who were positive for anti-Ro60 autoantibodies, five SLE patients who were anti-Ro60-negative, and seven healthy controls. The researchers took samples from the mouth, sternum, and stool. They found that commensal bacteria containing orthologs to Ro60 were found commonly in all of the patient groups. These included Propionibacterium propionicus, Corynebacterium amycolatum, Actinomyces massiliensis, and Bacteroides thetaiotaomicron, reported Teri M. Greiling, MD, PhD, of Yale University, New Haven, Conn., and her associates.
They also found that CD4 memory T-cell clones from lupus patients that were specific to Ro60 autoantigen were stimulated by Ro60-containing bacteria.
Researchers also colonized two groups of mice with B. thetaiotaomicron – mice with a lupuslike syndrome induced with the immune-response modifier imiquimod and those without this syndrome induced. The levels of anti-Ro60 antibodies were increased in those with the syndrome. Plus, lupus nephritislike complex depositions were seen in 88% of the glomeruli of the imiquimod-treated mice and in just 8% of those not treated with imiquimod.
“These data,” the researchers said, “suggest that Ro60 orthologs from human commensal bacteria may initiate and drive lupus pathogenesis.”
The study authors reported they had nothing to disclose. The work was supported by various grants from the National Institutes of Health, Arthritis National Research Foundation, the Arthritis Foundation, and the Lupus Research Institute, as well as NIH Intramural Research Programs.
SOURCE: Greiling TM et al. Sci Transl Med. 2018;10(434). doi: 10.1126/scitranslmed.aan2306.
FROM SCIENCE TRANSLATIONAL MEDICINE
Key clinical point:
Major finding: Autoreactive human lupus CD4-positive T cells cross-reacted with Ro60 ortholog–containing commensal bacteria.
Study details: A proof-of-concept study including microbiota samples from eight anti–Ro60-positive lupus patients, five anti–Ro60-negative lupus patients, and seven healthy controls.
Disclosures: The study authors reported they had nothing to disclose. The work was supported by various grants from the National Institutes of Health, Arthritis National Research Foundation, the Arthritis Foundation, and the Lupus Research Institute, as well as NIH Intramural Research Programs.
Source: Greiling TM et al. Sci Transl Med. 2018;10(434). doi: 10.1126/scitranslmed.aan2306.
Bloating. Flatulence. Think SIBO
MAUI, HAWAII – Recognition and effective treatment of small intestinal bowel overgrowth – aka, SIBO – is a highly practical skillset for nongastroenterologists to possess, Uma Mahadevan, MD, said at the 2018 Rheumatology Winter Clinical Symposium.
SIBO is a common accompaniment to a range of chronic diseases, especially as patients age. And it’s not a condition that warrants referral to a gastroenterologist, according to Dr. Mahadevan, professor of medicine and medical director of the Center for Colitis and Crohn’s Disease at the University of California, San Francisco.
“To diagnose SIBO properly you need to do a carbohydrate breath test. Those tests are notoriously inaccurate, and it’s not worth it. We just treat. If we think you have SIBO, you do a course of rifaximin. And you can do the same,” she told her audience of rheumatologists.
There is an alternative diagnostic test. It involves obtaining a jejunal aspirate culture that demonstrates a bacterial concentration of more than 1,000 colony-forming units/mL. That’s an invasive and expensive test. Given how common SIBO symptoms are in patients with various underlying chronic diseases and the highly favorable risk/benefit ratio of a course of rifaximin, it’s entirely reasonable to skip formal diagnostic testing and treat empirically when the clinical picture is consistent with SIBO, according to the gastroenterologist.
The etiology of SIBO involves diminished intestinal motility and altered mucosal defenses. With reduced GI motility, the small bowel can’t get cleared of debris efficiently. Colonic microbes grab a foothold and bloom. Conditions marked by diminished intestinal motility – and high rates of SIBO – include scleroderma, diabetes, irritable bowel syndrome, chronic pancreatitis, cirrhosis, common variable immunodeficiency, HIV infection, and radiation enteritis. Small bowel diverticula are a setup for SIBO. Long-term proton pump inhibitor–therapy fosters hypochlorydia, which promotes SIBO. Opioid therapy is another common cause of SIBO.
So is bariatric surgery. “Bariatric surgery has caused so much iatrogenic GI disease, it’s just amazing. There is bacterial overgrowth in that population, and it’s a lot more complex than basic SIBO,” Dr. Mahadevan said.
SIBO causes malabsorption across the intestinal microvillus membrane as a result of damage to enterocytes, as well as impaired digestion in the intestinal lumen.
The presenting hallmark symptoms of SIBO are bloating, flatulence, early satiety, abdominal discomfort, and in some cases chronic diarrhea.
“You get a lot of gas and bloating. Patients will say, ‘I eat a small amount and feel full; I look like I’m pregnant; I have a lot of gas. What’s wrong with me?’ Chances are they have SIBO,” Dr. Mahadevan said. “The older you get the more SIBO you have.”
First-line treatment, aimed at diminishing small bowel bacteria, is rifaximin at 550 mg three times per day for 10-14 days.
“This is a very low-risk antibiotic. And it’s very effective for SIBO, but patients may need multiple courses,” according to the gastroenterologist.
Indeed, 40% of patients will experience recurrent SIBO symptoms within 9 months after a round of rifaximin. Recurrences are more common in patients on chronic proton pump–inhibitor therapy, the elderly, and those who have undergone appendectomy. Such patients may need another course of rifaximin once or twice per year.
“If they need rifaximin every 6 months, fine. Patients will be so grateful to you for that course of rifaximin,” Dr. Mahadevan said.
Patients with methane-predominant bacterial overgrowth, as opposed to hydrogen-predominant overgrowth, often benefit from concomitant neomycin at 500 mg twice per day along with their 10-14 days of rifaximin.
“A lot of our cirrhotic patients are on both,” she noted.
Alternatives to rifaximin include amoxicillin/clavulanic acid in combination with metronidazole.
Two measures she routinely recommends to forestall recurrent SIBO are to have patients start probiotics after a course of rifaximin, and also to try the low-FODMAP (fermentable oligo-di-monosaccharides and polyols) diet. The evidence base in SIBO is weak, but the anecdotal experience has been strongly positive.
“These are two interventions you can provide to your patients with a lot of bloating and gas. It’ll make them feel much, much better,” the gastroenterologist said.
FODMAPs are short-chain carbohydrates, and the low-FODMAP diet is an elimination diet. The first 6 weeks are highly restrictive, then the foods on the high FODMAP list are reintroduced one at a time until the offenders are identified. The low-FODMAP diet hasn’t been conclusively proven effective for SIBO in a randomized clinical trial, but it does have a compelling evidence base for treatment of irritable bowel syndrome diarrhea (J Gastroenterol Hepatol. 2010 Feb;25[2]:252-8).
“Anecdotally, the use of a low-FODMAP diet in patients with bloating and gas is very effective as well. Patients have a good deal of success with it,” she said.
Audience members were eager to learn what particular specific probiotic microorganism Dr. Madahaven recommends.
“I think the more we understand the microbiome, the further away I’m going from specific probiotics because it’s just too complex for any one probiotic to be effective. I tell patients to try to get it from their diet: yogurt or kefir with live bacteria. That’s what I use now,” she replied.
MAUI, HAWAII – Recognition and effective treatment of small intestinal bowel overgrowth – aka, SIBO – is a highly practical skillset for nongastroenterologists to possess, Uma Mahadevan, MD, said at the 2018 Rheumatology Winter Clinical Symposium.
SIBO is a common accompaniment to a range of chronic diseases, especially as patients age. And it’s not a condition that warrants referral to a gastroenterologist, according to Dr. Mahadevan, professor of medicine and medical director of the Center for Colitis and Crohn’s Disease at the University of California, San Francisco.
“To diagnose SIBO properly you need to do a carbohydrate breath test. Those tests are notoriously inaccurate, and it’s not worth it. We just treat. If we think you have SIBO, you do a course of rifaximin. And you can do the same,” she told her audience of rheumatologists.
There is an alternative diagnostic test. It involves obtaining a jejunal aspirate culture that demonstrates a bacterial concentration of more than 1,000 colony-forming units/mL. That’s an invasive and expensive test. Given how common SIBO symptoms are in patients with various underlying chronic diseases and the highly favorable risk/benefit ratio of a course of rifaximin, it’s entirely reasonable to skip formal diagnostic testing and treat empirically when the clinical picture is consistent with SIBO, according to the gastroenterologist.
The etiology of SIBO involves diminished intestinal motility and altered mucosal defenses. With reduced GI motility, the small bowel can’t get cleared of debris efficiently. Colonic microbes grab a foothold and bloom. Conditions marked by diminished intestinal motility – and high rates of SIBO – include scleroderma, diabetes, irritable bowel syndrome, chronic pancreatitis, cirrhosis, common variable immunodeficiency, HIV infection, and radiation enteritis. Small bowel diverticula are a setup for SIBO. Long-term proton pump inhibitor–therapy fosters hypochlorydia, which promotes SIBO. Opioid therapy is another common cause of SIBO.
So is bariatric surgery. “Bariatric surgery has caused so much iatrogenic GI disease, it’s just amazing. There is bacterial overgrowth in that population, and it’s a lot more complex than basic SIBO,” Dr. Mahadevan said.
SIBO causes malabsorption across the intestinal microvillus membrane as a result of damage to enterocytes, as well as impaired digestion in the intestinal lumen.
The presenting hallmark symptoms of SIBO are bloating, flatulence, early satiety, abdominal discomfort, and in some cases chronic diarrhea.
“You get a lot of gas and bloating. Patients will say, ‘I eat a small amount and feel full; I look like I’m pregnant; I have a lot of gas. What’s wrong with me?’ Chances are they have SIBO,” Dr. Mahadevan said. “The older you get the more SIBO you have.”
First-line treatment, aimed at diminishing small bowel bacteria, is rifaximin at 550 mg three times per day for 10-14 days.
“This is a very low-risk antibiotic. And it’s very effective for SIBO, but patients may need multiple courses,” according to the gastroenterologist.
Indeed, 40% of patients will experience recurrent SIBO symptoms within 9 months after a round of rifaximin. Recurrences are more common in patients on chronic proton pump–inhibitor therapy, the elderly, and those who have undergone appendectomy. Such patients may need another course of rifaximin once or twice per year.
“If they need rifaximin every 6 months, fine. Patients will be so grateful to you for that course of rifaximin,” Dr. Mahadevan said.
Patients with methane-predominant bacterial overgrowth, as opposed to hydrogen-predominant overgrowth, often benefit from concomitant neomycin at 500 mg twice per day along with their 10-14 days of rifaximin.
“A lot of our cirrhotic patients are on both,” she noted.
Alternatives to rifaximin include amoxicillin/clavulanic acid in combination with metronidazole.
Two measures she routinely recommends to forestall recurrent SIBO are to have patients start probiotics after a course of rifaximin, and also to try the low-FODMAP (fermentable oligo-di-monosaccharides and polyols) diet. The evidence base in SIBO is weak, but the anecdotal experience has been strongly positive.
“These are two interventions you can provide to your patients with a lot of bloating and gas. It’ll make them feel much, much better,” the gastroenterologist said.
FODMAPs are short-chain carbohydrates, and the low-FODMAP diet is an elimination diet. The first 6 weeks are highly restrictive, then the foods on the high FODMAP list are reintroduced one at a time until the offenders are identified. The low-FODMAP diet hasn’t been conclusively proven effective for SIBO in a randomized clinical trial, but it does have a compelling evidence base for treatment of irritable bowel syndrome diarrhea (J Gastroenterol Hepatol. 2010 Feb;25[2]:252-8).
“Anecdotally, the use of a low-FODMAP diet in patients with bloating and gas is very effective as well. Patients have a good deal of success with it,” she said.
Audience members were eager to learn what particular specific probiotic microorganism Dr. Madahaven recommends.
“I think the more we understand the microbiome, the further away I’m going from specific probiotics because it’s just too complex for any one probiotic to be effective. I tell patients to try to get it from their diet: yogurt or kefir with live bacteria. That’s what I use now,” she replied.
MAUI, HAWAII – Recognition and effective treatment of small intestinal bowel overgrowth – aka, SIBO – is a highly practical skillset for nongastroenterologists to possess, Uma Mahadevan, MD, said at the 2018 Rheumatology Winter Clinical Symposium.
SIBO is a common accompaniment to a range of chronic diseases, especially as patients age. And it’s not a condition that warrants referral to a gastroenterologist, according to Dr. Mahadevan, professor of medicine and medical director of the Center for Colitis and Crohn’s Disease at the University of California, San Francisco.
“To diagnose SIBO properly you need to do a carbohydrate breath test. Those tests are notoriously inaccurate, and it’s not worth it. We just treat. If we think you have SIBO, you do a course of rifaximin. And you can do the same,” she told her audience of rheumatologists.
There is an alternative diagnostic test. It involves obtaining a jejunal aspirate culture that demonstrates a bacterial concentration of more than 1,000 colony-forming units/mL. That’s an invasive and expensive test. Given how common SIBO symptoms are in patients with various underlying chronic diseases and the highly favorable risk/benefit ratio of a course of rifaximin, it’s entirely reasonable to skip formal diagnostic testing and treat empirically when the clinical picture is consistent with SIBO, according to the gastroenterologist.
The etiology of SIBO involves diminished intestinal motility and altered mucosal defenses. With reduced GI motility, the small bowel can’t get cleared of debris efficiently. Colonic microbes grab a foothold and bloom. Conditions marked by diminished intestinal motility – and high rates of SIBO – include scleroderma, diabetes, irritable bowel syndrome, chronic pancreatitis, cirrhosis, common variable immunodeficiency, HIV infection, and radiation enteritis. Small bowel diverticula are a setup for SIBO. Long-term proton pump inhibitor–therapy fosters hypochlorydia, which promotes SIBO. Opioid therapy is another common cause of SIBO.
So is bariatric surgery. “Bariatric surgery has caused so much iatrogenic GI disease, it’s just amazing. There is bacterial overgrowth in that population, and it’s a lot more complex than basic SIBO,” Dr. Mahadevan said.
SIBO causes malabsorption across the intestinal microvillus membrane as a result of damage to enterocytes, as well as impaired digestion in the intestinal lumen.
The presenting hallmark symptoms of SIBO are bloating, flatulence, early satiety, abdominal discomfort, and in some cases chronic diarrhea.
“You get a lot of gas and bloating. Patients will say, ‘I eat a small amount and feel full; I look like I’m pregnant; I have a lot of gas. What’s wrong with me?’ Chances are they have SIBO,” Dr. Mahadevan said. “The older you get the more SIBO you have.”
First-line treatment, aimed at diminishing small bowel bacteria, is rifaximin at 550 mg three times per day for 10-14 days.
“This is a very low-risk antibiotic. And it’s very effective for SIBO, but patients may need multiple courses,” according to the gastroenterologist.
Indeed, 40% of patients will experience recurrent SIBO symptoms within 9 months after a round of rifaximin. Recurrences are more common in patients on chronic proton pump–inhibitor therapy, the elderly, and those who have undergone appendectomy. Such patients may need another course of rifaximin once or twice per year.
“If they need rifaximin every 6 months, fine. Patients will be so grateful to you for that course of rifaximin,” Dr. Mahadevan said.
Patients with methane-predominant bacterial overgrowth, as opposed to hydrogen-predominant overgrowth, often benefit from concomitant neomycin at 500 mg twice per day along with their 10-14 days of rifaximin.
“A lot of our cirrhotic patients are on both,” she noted.
Alternatives to rifaximin include amoxicillin/clavulanic acid in combination with metronidazole.
Two measures she routinely recommends to forestall recurrent SIBO are to have patients start probiotics after a course of rifaximin, and also to try the low-FODMAP (fermentable oligo-di-monosaccharides and polyols) diet. The evidence base in SIBO is weak, but the anecdotal experience has been strongly positive.
“These are two interventions you can provide to your patients with a lot of bloating and gas. It’ll make them feel much, much better,” the gastroenterologist said.
FODMAPs are short-chain carbohydrates, and the low-FODMAP diet is an elimination diet. The first 6 weeks are highly restrictive, then the foods on the high FODMAP list are reintroduced one at a time until the offenders are identified. The low-FODMAP diet hasn’t been conclusively proven effective for SIBO in a randomized clinical trial, but it does have a compelling evidence base for treatment of irritable bowel syndrome diarrhea (J Gastroenterol Hepatol. 2010 Feb;25[2]:252-8).
“Anecdotally, the use of a low-FODMAP diet in patients with bloating and gas is very effective as well. Patients have a good deal of success with it,” she said.
Audience members were eager to learn what particular specific probiotic microorganism Dr. Madahaven recommends.
“I think the more we understand the microbiome, the further away I’m going from specific probiotics because it’s just too complex for any one probiotic to be effective. I tell patients to try to get it from their diet: yogurt or kefir with live bacteria. That’s what I use now,” she replied.
EXPERT ANALYSIS FROM RWCS 2018
VIDEO: Cannabinoids in dermatology
SAN DIEGO – To date, most of the research on cannabinoids has been outside of dermatology, but these agents may eventually play an important role in the treatment of dermatologic diseases, according to Adam Friedman, MD, director of translational research, department of dermatology, at George Washington University, Washington.
for diseases like dermatomyositis, scleroderma, and lupus, Dr. Friedman said in a video interview at the annual meeting of the American Academy of Dermatology.
In this area, most progress has been made with a synthetic cannabinoid, ajulemic acid (also known as anabasum), which is designed to go after CB2 cannabinoid receptors, which have the anti-inflammatory effects, and not the CB1 receptors, which have the psychoactive effects, he explained. Results of phase 2 studies of ajulemic acid in dermatomyositis and systemic sclerosis have been “very promising,” he noted.
In collaboration with Albert Einstein College of Medicine, New York, he and his associates have studied the topical application of an endocannabinoid, anandamide (AEA), in nanoparticles in an animal model of cutaneous lupus. “We found that we can actually reverse the very classic, almost chronic cutaneous-like symptoms that we see in these animals if they go untreated,” he said.
In the interview, Dr. Friedman, who spoke about the potential of cannabinoids for the treatment of inflammatory and neoplastic diseases of the skin at the meeting, said that it is actually surprising that most research with cannabinoids to date has been outside of dermatology, “because our skin is chock full of cannabinoids; chock full of expression of cannabinoid receptors.”
Dr. Friedman disclosed that he has invented the nanotechnology licensed to Zylo Therapeutics. He is a member of the Dermatology News advisory board.
SAN DIEGO – To date, most of the research on cannabinoids has been outside of dermatology, but these agents may eventually play an important role in the treatment of dermatologic diseases, according to Adam Friedman, MD, director of translational research, department of dermatology, at George Washington University, Washington.
for diseases like dermatomyositis, scleroderma, and lupus, Dr. Friedman said in a video interview at the annual meeting of the American Academy of Dermatology.
In this area, most progress has been made with a synthetic cannabinoid, ajulemic acid (also known as anabasum), which is designed to go after CB2 cannabinoid receptors, which have the anti-inflammatory effects, and not the CB1 receptors, which have the psychoactive effects, he explained. Results of phase 2 studies of ajulemic acid in dermatomyositis and systemic sclerosis have been “very promising,” he noted.
In collaboration with Albert Einstein College of Medicine, New York, he and his associates have studied the topical application of an endocannabinoid, anandamide (AEA), in nanoparticles in an animal model of cutaneous lupus. “We found that we can actually reverse the very classic, almost chronic cutaneous-like symptoms that we see in these animals if they go untreated,” he said.
In the interview, Dr. Friedman, who spoke about the potential of cannabinoids for the treatment of inflammatory and neoplastic diseases of the skin at the meeting, said that it is actually surprising that most research with cannabinoids to date has been outside of dermatology, “because our skin is chock full of cannabinoids; chock full of expression of cannabinoid receptors.”
Dr. Friedman disclosed that he has invented the nanotechnology licensed to Zylo Therapeutics. He is a member of the Dermatology News advisory board.
SAN DIEGO – To date, most of the research on cannabinoids has been outside of dermatology, but these agents may eventually play an important role in the treatment of dermatologic diseases, according to Adam Friedman, MD, director of translational research, department of dermatology, at George Washington University, Washington.
for diseases like dermatomyositis, scleroderma, and lupus, Dr. Friedman said in a video interview at the annual meeting of the American Academy of Dermatology.
In this area, most progress has been made with a synthetic cannabinoid, ajulemic acid (also known as anabasum), which is designed to go after CB2 cannabinoid receptors, which have the anti-inflammatory effects, and not the CB1 receptors, which have the psychoactive effects, he explained. Results of phase 2 studies of ajulemic acid in dermatomyositis and systemic sclerosis have been “very promising,” he noted.
In collaboration with Albert Einstein College of Medicine, New York, he and his associates have studied the topical application of an endocannabinoid, anandamide (AEA), in nanoparticles in an animal model of cutaneous lupus. “We found that we can actually reverse the very classic, almost chronic cutaneous-like symptoms that we see in these animals if they go untreated,” he said.
In the interview, Dr. Friedman, who spoke about the potential of cannabinoids for the treatment of inflammatory and neoplastic diseases of the skin at the meeting, said that it is actually surprising that most research with cannabinoids to date has been outside of dermatology, “because our skin is chock full of cannabinoids; chock full of expression of cannabinoid receptors.”
Dr. Friedman disclosed that he has invented the nanotechnology licensed to Zylo Therapeutics. He is a member of the Dermatology News advisory board.
REPORTING FROM AAD 18
VIDEO: Considering systemic disease in dermatology patients
SAN DIEGO – Be mindful of what lies below the skin.
That was the message of Joseph Merola, MD, during a session on “rheumatology for the dermatologist” at the annual meeting of the American Academy of Dermatology.
“The idea is really to start to try to get our dermatology colleagues thinking more systemically and outside of just the skin,” said Dr. Merola, a rheumatologist and dermatologist who is codirector of the center for skin and related musculoskeletal diseases at Brigham and Women’s Hospital, Boston.
“ in up to 30% of patients,” he noted.
He urged his colleagues to ask patients functional questions; for example, those pertaining to sicca symptoms; and how to parse out whether a patient’s joint pain is inflammatory or non-inflammatory.
In a video interview, Dr. Merola also discussed lab tests used to evaluate patients with lupus, the value of a simple urine test, and recent work on the development of the first international classification criteria set for discoid type skin lupus.
SAN DIEGO – Be mindful of what lies below the skin.
That was the message of Joseph Merola, MD, during a session on “rheumatology for the dermatologist” at the annual meeting of the American Academy of Dermatology.
“The idea is really to start to try to get our dermatology colleagues thinking more systemically and outside of just the skin,” said Dr. Merola, a rheumatologist and dermatologist who is codirector of the center for skin and related musculoskeletal diseases at Brigham and Women’s Hospital, Boston.
“ in up to 30% of patients,” he noted.
He urged his colleagues to ask patients functional questions; for example, those pertaining to sicca symptoms; and how to parse out whether a patient’s joint pain is inflammatory or non-inflammatory.
In a video interview, Dr. Merola also discussed lab tests used to evaluate patients with lupus, the value of a simple urine test, and recent work on the development of the first international classification criteria set for discoid type skin lupus.
SAN DIEGO – Be mindful of what lies below the skin.
That was the message of Joseph Merola, MD, during a session on “rheumatology for the dermatologist” at the annual meeting of the American Academy of Dermatology.
“The idea is really to start to try to get our dermatology colleagues thinking more systemically and outside of just the skin,” said Dr. Merola, a rheumatologist and dermatologist who is codirector of the center for skin and related musculoskeletal diseases at Brigham and Women’s Hospital, Boston.
“ in up to 30% of patients,” he noted.
He urged his colleagues to ask patients functional questions; for example, those pertaining to sicca symptoms; and how to parse out whether a patient’s joint pain is inflammatory or non-inflammatory.
In a video interview, Dr. Merola also discussed lab tests used to evaluate patients with lupus, the value of a simple urine test, and recent work on the development of the first international classification criteria set for discoid type skin lupus.
REPORTING FROM AAD 18
VIDEO: PPACMAN aims to advance the combined rheum-derm clinic approach in the community
SAN DIEGO – A new endeavor that aims to promote the concept of the combined clinic approach to caring for psoriatic patients is now underway.
PPACMAN (Psoriasis and Psoriatic Arthritis Clinics Multicenter Advancement Network) is made up of dermatologists and rheumatologists who play a key role in the management of psoriatic disease and are interested in combined clinics, with the mission “to nucleate psoriatic disease combined clinics and centers to advance a multilevel approach to psoriatic patients, increase disease awareness, and accelerate management,” according to Joseph Merola, MD, codirector of the center for skin and related musculoskeletal diseases at Brigham and Women’s Hospital, Boston.
There are now about 12 centers in North America with formal rheumatology-dermatology clinics for patients with psoriasis and psoriatic arthritis, including the one at Brigham and Women’s, where Dr. Merola and his colleagues have seen the “myriad benefits that come with having a combined clinic,” he said in a video interview at the annual meeting of the American Academy of Dermatology. The idea behind starting PPACMAN was to help form new clinics at academic centers but, also, “to start to catalyze local-regional partnerships in the community so we could get dermatologists and rheumatologists in the community to start interacting, communicating, [and] sharing patients,” he explained.
“The group is really very much focused on this mission of getting combined ... treatment models out there,” added Dr. Merola, president and chair of the board of PPACMAN, which is a 501c3 nonprofit organization.
In the interview, he discusses other benefits of the combined clinic model and other elements of the PPACMAN mission, including education and the potential for shared EMR templates.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
SAN DIEGO – A new endeavor that aims to promote the concept of the combined clinic approach to caring for psoriatic patients is now underway.
PPACMAN (Psoriasis and Psoriatic Arthritis Clinics Multicenter Advancement Network) is made up of dermatologists and rheumatologists who play a key role in the management of psoriatic disease and are interested in combined clinics, with the mission “to nucleate psoriatic disease combined clinics and centers to advance a multilevel approach to psoriatic patients, increase disease awareness, and accelerate management,” according to Joseph Merola, MD, codirector of the center for skin and related musculoskeletal diseases at Brigham and Women’s Hospital, Boston.
There are now about 12 centers in North America with formal rheumatology-dermatology clinics for patients with psoriasis and psoriatic arthritis, including the one at Brigham and Women’s, where Dr. Merola and his colleagues have seen the “myriad benefits that come with having a combined clinic,” he said in a video interview at the annual meeting of the American Academy of Dermatology. The idea behind starting PPACMAN was to help form new clinics at academic centers but, also, “to start to catalyze local-regional partnerships in the community so we could get dermatologists and rheumatologists in the community to start interacting, communicating, [and] sharing patients,” he explained.
“The group is really very much focused on this mission of getting combined ... treatment models out there,” added Dr. Merola, president and chair of the board of PPACMAN, which is a 501c3 nonprofit organization.
In the interview, he discusses other benefits of the combined clinic model and other elements of the PPACMAN mission, including education and the potential for shared EMR templates.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
SAN DIEGO – A new endeavor that aims to promote the concept of the combined clinic approach to caring for psoriatic patients is now underway.
PPACMAN (Psoriasis and Psoriatic Arthritis Clinics Multicenter Advancement Network) is made up of dermatologists and rheumatologists who play a key role in the management of psoriatic disease and are interested in combined clinics, with the mission “to nucleate psoriatic disease combined clinics and centers to advance a multilevel approach to psoriatic patients, increase disease awareness, and accelerate management,” according to Joseph Merola, MD, codirector of the center for skin and related musculoskeletal diseases at Brigham and Women’s Hospital, Boston.
There are now about 12 centers in North America with formal rheumatology-dermatology clinics for patients with psoriasis and psoriatic arthritis, including the one at Brigham and Women’s, where Dr. Merola and his colleagues have seen the “myriad benefits that come with having a combined clinic,” he said in a video interview at the annual meeting of the American Academy of Dermatology. The idea behind starting PPACMAN was to help form new clinics at academic centers but, also, “to start to catalyze local-regional partnerships in the community so we could get dermatologists and rheumatologists in the community to start interacting, communicating, [and] sharing patients,” he explained.
“The group is really very much focused on this mission of getting combined ... treatment models out there,” added Dr. Merola, president and chair of the board of PPACMAN, which is a 501c3 nonprofit organization.
In the interview, he discusses other benefits of the combined clinic model and other elements of the PPACMAN mission, including education and the potential for shared EMR templates.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
REPORTING FROM AAD 18