News

Certain services, which include senior centers that offer exercise and recreation, already have the staff and volunteers to deliver programs, track attendance, and record outcomes, say researchers from University of Pittsburgh.

To assess how well such infrastructure can support prevention efforts, the University of Pittsburgh CDC Prevention Research Center partnered with the Pennsylvania Department of Aging APPRISE program to deliver the 10 Keys to Healthy Aging program.

APPRISE is a Medicare counseling program offered at senior centers as part of the state health insurance program. The 10 Keys Program is a series of workshops that cover the US Preventive Services Task Force guidelines and other evidence-based recommendations. The “keys” are risk prevention strategies for behavioral change in areas including blood pressure control, glucose control, smoking cessation, immunizations, and screening.

The program grew from 93 participants in pilot year 2013 to 694 in 2016. During the study period, 1,534 people attended at ≥ 1 workshop; 1,044 (68%) completed > 8 Keys workshops, and 736 completed both the pretest and posttest.

The program was effective; the researchers say: Correct answers on the prevention knowledge quiz rose from 61.5% to 78.5%. In monthly follow-up with 147 respondents over 6 months, maintenance of prevention behaviors was strong in the areas of physical activity and hypertension management, and significantly higher for people who completed more Keys workshops.

Certain services, which include senior centers that offer exercise and recreation, already have the staff and volunteers to deliver programs, track attendance, and record outcomes, say researchers from University of Pittsburgh.

To assess how well such infrastructure can support prevention efforts, the University of Pittsburgh CDC Prevention Research Center partnered with the Pennsylvania Department of Aging APPRISE program to deliver the 10 Keys to Healthy Aging program.

APPRISE is a Medicare counseling program offered at senior centers as part of the state health insurance program. The 10 Keys Program is a series of workshops that cover the US Preventive Services Task Force guidelines and other evidence-based recommendations. The “keys” are risk prevention strategies for behavioral change in areas including blood pressure control, glucose control, smoking cessation, immunizations, and screening.

The program grew from 93 participants in pilot year 2013 to 694 in 2016. During the study period, 1,534 people attended at ≥ 1 workshop; 1,044 (68%) completed > 8 Keys workshops, and 736 completed both the pretest and posttest.

The program was effective; the researchers say: Correct answers on the prevention knowledge quiz rose from 61.5% to 78.5%. In monthly follow-up with 147 respondents over 6 months, maintenance of prevention behaviors was strong in the areas of physical activity and hypertension management, and significantly higher for people who completed more Keys workshops.

Certain services, which include senior centers that offer exercise and recreation, already have the staff and volunteers to deliver programs, track attendance, and record outcomes, say researchers from University of Pittsburgh.

To assess how well such infrastructure can support prevention efforts, the University of Pittsburgh CDC Prevention Research Center partnered with the Pennsylvania Department of Aging APPRISE program to deliver the 10 Keys to Healthy Aging program.

APPRISE is a Medicare counseling program offered at senior centers as part of the state health insurance program. The 10 Keys Program is a series of workshops that cover the US Preventive Services Task Force guidelines and other evidence-based recommendations. The “keys” are risk prevention strategies for behavioral change in areas including blood pressure control, glucose control, smoking cessation, immunizations, and screening.

The program grew from 93 participants in pilot year 2013 to 694 in 2016. During the study period, 1,534 people attended at ≥ 1 workshop; 1,044 (68%) completed > 8 Keys workshops, and 736 completed both the pretest and posttest.

The program was effective; the researchers say: Correct answers on the prevention knowledge quiz rose from 61.5% to 78.5%. In monthly follow-up with 147 respondents over 6 months, maintenance of prevention behaviors was strong in the areas of physical activity and hypertension management, and significantly higher for people who completed more Keys workshops.

An antibiotic drug used to treat acne, among other things, may turn out to have potential well beyond that. Researchers from University of Antioquiain Medellin, Colombia, suggest that minocycline could be a promising antileukemic drug.

Minocycline is a well-established tetracycline derivative, used clinically since 1971, with a safe track record. But it also has nonantibiotic properties, exerting both antioxidant and antiapoptotic effects. There is even “compelling” preclinical evidence, the researchers say, that minocycline induces apoptosis in an acute myeloid leukemia cell line and a chronic myeloid leukemia cell line. Would the same be true of acute lymphoblastic leukemia (ALL) cells? To test their hypothesis, the researchers examined minocycline’s mechanism of action in the Jurkat cell line, an ALL tumor line established in the 1970s from the peripheral blood of a 14-year-old boy. 

The researchers found that minocycline did in fact induce apoptosis in Jurkat cells through a hydrogen peroxide (H₂O₂)-mediated signaling pathway. Indeed, they add, H₂O₂ triggers a whole cascade of adverse effects, including up-regulation of pro-apoptotic proteins. The researchers suggest that minocycline might even be capable of generating H₂O₂, which could explain the cytotoxic effects not only of minocycline, but of other tetracycline analogues. “Interestingly,” the researchers say, minocycline did all that without inducing oxidative stress or apoptosis makers in human peripheral blood lymphocyte cells.

The significance of their study is twofold, the researchers say: First, that minocycline is a safe and specific apoptosis-inducing drug against Jurkat cells in vitro; second, that it is pharmacologically well characterized and widely available.

The researchers note that no information is available on whether minocycline might efficiently kill ALL cells in vivo. However, they also note that minocycline has been found to be safe and well tolerated in doses up to 10 mg/kg in stroke patients—a dose that could be a sufficient concentration to reduce the viability of leukemia cell lines.

Source:
Ruiz-Moreno C, Velez-Pardo C, Jimenez-Del-Rio M. Toxicol In Vitro. 2018;50:336-346.
doi: 10.1016/j.tiv.2018.03.012

An antibiotic drug used to treat acne, among other things, may turn out to have potential well beyond that. Researchers from University of Antioquiain Medellin, Colombia, suggest that minocycline could be a promising antileukemic drug.

Minocycline is a well-established tetracycline derivative, used clinically since 1971, with a safe track record. But it also has nonantibiotic properties, exerting both antioxidant and antiapoptotic effects. There is even “compelling” preclinical evidence, the researchers say, that minocycline induces apoptosis in an acute myeloid leukemia cell line and a chronic myeloid leukemia cell line. Would the same be true of acute lymphoblastic leukemia (ALL) cells? To test their hypothesis, the researchers examined minocycline’s mechanism of action in the Jurkat cell line, an ALL tumor line established in the 1970s from the peripheral blood of a 14-year-old boy. 

The researchers found that minocycline did in fact induce apoptosis in Jurkat cells through a hydrogen peroxide (H₂O₂)-mediated signaling pathway. Indeed, they add, H₂O₂ triggers a whole cascade of adverse effects, including up-regulation of pro-apoptotic proteins. The researchers suggest that minocycline might even be capable of generating H₂O₂, which could explain the cytotoxic effects not only of minocycline, but of other tetracycline analogues. “Interestingly,” the researchers say, minocycline did all that without inducing oxidative stress or apoptosis makers in human peripheral blood lymphocyte cells.

The significance of their study is twofold, the researchers say: First, that minocycline is a safe and specific apoptosis-inducing drug against Jurkat cells in vitro; second, that it is pharmacologically well characterized and widely available.

The researchers note that no information is available on whether minocycline might efficiently kill ALL cells in vivo. However, they also note that minocycline has been found to be safe and well tolerated in doses up to 10 mg/kg in stroke patients—a dose that could be a sufficient concentration to reduce the viability of leukemia cell lines.

Source:
Ruiz-Moreno C, Velez-Pardo C, Jimenez-Del-Rio M. Toxicol In Vitro. 2018;50:336-346.
doi: 10.1016/j.tiv.2018.03.012

An antibiotic drug used to treat acne, among other things, may turn out to have potential well beyond that. Researchers from University of Antioquiain Medellin, Colombia, suggest that minocycline could be a promising antileukemic drug.

Minocycline is a well-established tetracycline derivative, used clinically since 1971, with a safe track record. But it also has nonantibiotic properties, exerting both antioxidant and antiapoptotic effects. There is even “compelling” preclinical evidence, the researchers say, that minocycline induces apoptosis in an acute myeloid leukemia cell line and a chronic myeloid leukemia cell line. Would the same be true of acute lymphoblastic leukemia (ALL) cells? To test their hypothesis, the researchers examined minocycline’s mechanism of action in the Jurkat cell line, an ALL tumor line established in the 1970s from the peripheral blood of a 14-year-old boy. 

The researchers found that minocycline did in fact induce apoptosis in Jurkat cells through a hydrogen peroxide (H₂O₂)-mediated signaling pathway. Indeed, they add, H₂O₂ triggers a whole cascade of adverse effects, including up-regulation of pro-apoptotic proteins. The researchers suggest that minocycline might even be capable of generating H₂O₂, which could explain the cytotoxic effects not only of minocycline, but of other tetracycline analogues. “Interestingly,” the researchers say, minocycline did all that without inducing oxidative stress or apoptosis makers in human peripheral blood lymphocyte cells.

The significance of their study is twofold, the researchers say: First, that minocycline is a safe and specific apoptosis-inducing drug against Jurkat cells in vitro; second, that it is pharmacologically well characterized and widely available.

The researchers note that no information is available on whether minocycline might efficiently kill ALL cells in vivo. However, they also note that minocycline has been found to be safe and well tolerated in doses up to 10 mg/kg in stroke patients—a dose that could be a sufficient concentration to reduce the viability of leukemia cell lines.

Source:
Ruiz-Moreno C, Velez-Pardo C, Jimenez-Del-Rio M. Toxicol In Vitro. 2018;50:336-346.
doi: 10.1016/j.tiv.2018.03.012

Where you live can determine how safe you are (or feel), where you shop, the kind of food you can buy, and other factors that affect your health. For some people, social factors, like their neighborhood, can disproportionately affect health. “Socioeconomic disadvantage is one of the fundamental factors that result in health disparities,” says Eliseo Pérez-Stable, MD, director of the National Institute on Minority Health and Health Disparities. “Having a tool to better understand social factors impacting health disparities is an important step forward to achieving health equity.”

Such a tool is available now developed by Amy Kind, MD, PhD, at the University of Wisconsin. The Neighborhood Atlas is an online platform that allows researchers to visualize socioeconomic data at local levels. Users can download maps indexed with data ranked according to 17 measures, including income, education, employment, and housing quality.

The Atlas is able to merge with other data sources to foster better understanding of how neighborhood disadvantage influences health, Kind says. For instance, researchers and health and social service providers can use the data to understand the risk factors for diseases, study the impact of health policies, or better align resources. Kind adds that the Atlas and the data can be harnessed to advance disparities-focused research, and to improve translational, clinical and community research by showing ways to aid design, recruitment, retention, and outreach.

Where you live can determine how safe you are (or feel), where you shop, the kind of food you can buy, and other factors that affect your health. For some people, social factors, like their neighborhood, can disproportionately affect health. “Socioeconomic disadvantage is one of the fundamental factors that result in health disparities,” says Eliseo Pérez-Stable, MD, director of the National Institute on Minority Health and Health Disparities. “Having a tool to better understand social factors impacting health disparities is an important step forward to achieving health equity.”

Such a tool is available now developed by Amy Kind, MD, PhD, at the University of Wisconsin. The Neighborhood Atlas is an online platform that allows researchers to visualize socioeconomic data at local levels. Users can download maps indexed with data ranked according to 17 measures, including income, education, employment, and housing quality.

The Atlas is able to merge with other data sources to foster better understanding of how neighborhood disadvantage influences health, Kind says. For instance, researchers and health and social service providers can use the data to understand the risk factors for diseases, study the impact of health policies, or better align resources. Kind adds that the Atlas and the data can be harnessed to advance disparities-focused research, and to improve translational, clinical and community research by showing ways to aid design, recruitment, retention, and outreach.

Where you live can determine how safe you are (or feel), where you shop, the kind of food you can buy, and other factors that affect your health. For some people, social factors, like their neighborhood, can disproportionately affect health. “Socioeconomic disadvantage is one of the fundamental factors that result in health disparities,” says Eliseo Pérez-Stable, MD, director of the National Institute on Minority Health and Health Disparities. “Having a tool to better understand social factors impacting health disparities is an important step forward to achieving health equity.”

Such a tool is available now developed by Amy Kind, MD, PhD, at the University of Wisconsin. The Neighborhood Atlas is an online platform that allows researchers to visualize socioeconomic data at local levels. Users can download maps indexed with data ranked according to 17 measures, including income, education, employment, and housing quality.

The Atlas is able to merge with other data sources to foster better understanding of how neighborhood disadvantage influences health, Kind says. For instance, researchers and health and social service providers can use the data to understand the risk factors for diseases, study the impact of health policies, or better align resources. Kind adds that the Atlas and the data can be harnessed to advance disparities-focused research, and to improve translational, clinical and community research by showing ways to aid design, recruitment, retention, and outreach.

Patients with mantle cell lymphoma (MCL) have better outcomes if they receive rituximab (Rituxan) maintenance therapy after induction therapy, albeit with the trade-off of higher risk of neutropenia, according to results of a meta-analysis reported in HemaSphere.

Investigators led by Liat Vidal, MD, of Tel-Aviv University, analyzed data from six randomized controlled trials of maintenance therapy including 858 patients with MCL who had a complete or partial response to induction therapy. The maintenance therapy was rituximab in five trials and bortezomib (Velcade) in one trial. The median duration of follow-up was 26-59 months across trials.

Main results showed that, compared with patients who were simply observed or given maintenance interferon-alfa, those given maintenance rituximab had a significantly reduced risk of progression or death (pooled hazard ratio, 0.58; 95% confidence interval, 0.45-0.73) and a nonsignificantly reduced risk of death (pHR, 0.79; 95% CI, 0.58-1.06).

Rituximab maintenance therapy was associated with a doubling of the risk of grade 3 or 4 neutropenia (risk ratio, 2.02; 95% CI, 1.50-2.73). However, there was no significant difference between groups with respect to risks of infection, or grade 3 or 4 anemia or thrombocythemia.

None of the included trials reported on quality of life outcomes.

The lone trial of bortezomib maintenance did not find any significant event-free survival or overall survival benefit.

“Based on our results, rituximab maintenance is recommended after immunochemotherapy with R-CHOP or cytarabine-containing induction in the front-line setting for transplant-eligible and -ineligible patients, and after R-CHOP in the relapse setting. It is unclear if maintenance is of benefit after different induction chemotherapy such as bendamustine or fludarabine,” Dr. Vidal and coauthors conclude. “By contrast, current data does not support improved outcomes with bortezomib maintenance for MCL patients.”

Dr. Vidal disclosed that she is an employee of Syneos Health. The study received no funding.

SOURCE: Vidal L et al. HemaSphere. 2018 Aug;2(4):e136.

Patients with mantle cell lymphoma (MCL) have better outcomes if they receive rituximab (Rituxan) maintenance therapy after induction therapy, albeit with the trade-off of higher risk of neutropenia, according to results of a meta-analysis reported in HemaSphere.

Investigators led by Liat Vidal, MD, of Tel-Aviv University, analyzed data from six randomized controlled trials of maintenance therapy including 858 patients with MCL who had a complete or partial response to induction therapy. The maintenance therapy was rituximab in five trials and bortezomib (Velcade) in one trial. The median duration of follow-up was 26-59 months across trials.

Main results showed that, compared with patients who were simply observed or given maintenance interferon-alfa, those given maintenance rituximab had a significantly reduced risk of progression or death (pooled hazard ratio, 0.58; 95% confidence interval, 0.45-0.73) and a nonsignificantly reduced risk of death (pHR, 0.79; 95% CI, 0.58-1.06).

Rituximab maintenance therapy was associated with a doubling of the risk of grade 3 or 4 neutropenia (risk ratio, 2.02; 95% CI, 1.50-2.73). However, there was no significant difference between groups with respect to risks of infection, or grade 3 or 4 anemia or thrombocythemia.

None of the included trials reported on quality of life outcomes.

The lone trial of bortezomib maintenance did not find any significant event-free survival or overall survival benefit.

“Based on our results, rituximab maintenance is recommended after immunochemotherapy with R-CHOP or cytarabine-containing induction in the front-line setting for transplant-eligible and -ineligible patients, and after R-CHOP in the relapse setting. It is unclear if maintenance is of benefit after different induction chemotherapy such as bendamustine or fludarabine,” Dr. Vidal and coauthors conclude. “By contrast, current data does not support improved outcomes with bortezomib maintenance for MCL patients.”

Dr. Vidal disclosed that she is an employee of Syneos Health. The study received no funding.

SOURCE: Vidal L et al. HemaSphere. 2018 Aug;2(4):e136.

Patients with mantle cell lymphoma (MCL) have better outcomes if they receive rituximab (Rituxan) maintenance therapy after induction therapy, albeit with the trade-off of higher risk of neutropenia, according to results of a meta-analysis reported in HemaSphere.

Investigators led by Liat Vidal, MD, of Tel-Aviv University, analyzed data from six randomized controlled trials of maintenance therapy including 858 patients with MCL who had a complete or partial response to induction therapy. The maintenance therapy was rituximab in five trials and bortezomib (Velcade) in one trial. The median duration of follow-up was 26-59 months across trials.

Main results showed that, compared with patients who were simply observed or given maintenance interferon-alfa, those given maintenance rituximab had a significantly reduced risk of progression or death (pooled hazard ratio, 0.58; 95% confidence interval, 0.45-0.73) and a nonsignificantly reduced risk of death (pHR, 0.79; 95% CI, 0.58-1.06).

Rituximab maintenance therapy was associated with a doubling of the risk of grade 3 or 4 neutropenia (risk ratio, 2.02; 95% CI, 1.50-2.73). However, there was no significant difference between groups with respect to risks of infection, or grade 3 or 4 anemia or thrombocythemia.

None of the included trials reported on quality of life outcomes.

The lone trial of bortezomib maintenance did not find any significant event-free survival or overall survival benefit.

“Based on our results, rituximab maintenance is recommended after immunochemotherapy with R-CHOP or cytarabine-containing induction in the front-line setting for transplant-eligible and -ineligible patients, and after R-CHOP in the relapse setting. It is unclear if maintenance is of benefit after different induction chemotherapy such as bendamustine or fludarabine,” Dr. Vidal and coauthors conclude. “By contrast, current data does not support improved outcomes with bortezomib maintenance for MCL patients.”

Dr. Vidal disclosed that she is an employee of Syneos Health. The study received no funding.

SOURCE: Vidal L et al. HemaSphere. 2018 Aug;2(4):e136.

University Hospitals Seidman Cancer Center in Cleveland has launched a phase 1 clinical trial to study the safety of CAR T therapy for non-Hodgkin lymphoma.

The trial will enroll 12-15 adult patients with non-Hodgkin lymphoma who have not responded to standard therapies, according to a statement from University Hospitals Seidman Cancer Center.

The principal investigator for the trial will be Paolo Caimi, MD, of UH Seidman and Case Western Reserve University.

UH Seidman, affiliated with Case Western Reserve University, is one of a handful of centers that has the ability to manufacture the CAR T cells from the patient’s own genetically modified T cells on site in the shared Case Western Reserve University National Center for Regenerative Medicine and the UH Seidman Cellular Therapy Laboratory, saving time for patients.

“Having the ability to make cells on-site means there will be a shorter turnaround time in having the cells available for the patient, compared to shipping them off-site,” said Dr. Caimi in the press statement.

lnikolaides@mdedge.com

University Hospitals Seidman Cancer Center in Cleveland has launched a phase 1 clinical trial to study the safety of CAR T therapy for non-Hodgkin lymphoma.

The trial will enroll 12-15 adult patients with non-Hodgkin lymphoma who have not responded to standard therapies, according to a statement from University Hospitals Seidman Cancer Center.

The principal investigator for the trial will be Paolo Caimi, MD, of UH Seidman and Case Western Reserve University.

UH Seidman, affiliated with Case Western Reserve University, is one of a handful of centers that has the ability to manufacture the CAR T cells from the patient’s own genetically modified T cells on site in the shared Case Western Reserve University National Center for Regenerative Medicine and the UH Seidman Cellular Therapy Laboratory, saving time for patients.

“Having the ability to make cells on-site means there will be a shorter turnaround time in having the cells available for the patient, compared to shipping them off-site,” said Dr. Caimi in the press statement.

lnikolaides@mdedge.com

University Hospitals Seidman Cancer Center in Cleveland has launched a phase 1 clinical trial to study the safety of CAR T therapy for non-Hodgkin lymphoma.

The trial will enroll 12-15 adult patients with non-Hodgkin lymphoma who have not responded to standard therapies, according to a statement from University Hospitals Seidman Cancer Center.

The principal investigator for the trial will be Paolo Caimi, MD, of UH Seidman and Case Western Reserve University.

UH Seidman, affiliated with Case Western Reserve University, is one of a handful of centers that has the ability to manufacture the CAR T cells from the patient’s own genetically modified T cells on site in the shared Case Western Reserve University National Center for Regenerative Medicine and the UH Seidman Cellular Therapy Laboratory, saving time for patients.

“Having the ability to make cells on-site means there will be a shorter turnaround time in having the cells available for the patient, compared to shipping them off-site,” said Dr. Caimi in the press statement.

lnikolaides@mdedge.com

Hundreds of reports since the 1980s have associated Alzheimer disease with bacteria and viruses. But researchers could not explain the connection. Now new research suggests that viral species, particularly herpes viruses, play a role in Alzheimer disease biology.

The hypotheses that link viruses to brain disease are not new, Richard Hodes, MD, director of the National Institute on Aging, says, but this is the first study to provide “strong evidence” based on unbiased approaches and large datasets.

The study, which was funded by National Institute of Aging (NIA) , originally was intended to find out whether drugs used to treat other diseases can be repurposed for treating Alzheimer. Researchers analyzed large datasets from postmortem brain samples to map and compare biological networks underlying Alzheimer disease. They found that the disease biology is impacted by a “complex constellation” of factors, including the ways the interrelated systems of DNA, RNA, proteins, and metabolites interact with molecular, genetic, and clinical aspects of Alzheimer disease.

Among the key findings: Human herpes virus 6A and 7 were more abundant in Alzheimer disease samples than in non-Alzheimer samples. Researchers also found multiple points of overlap between virus-host interactions and genes associated with Alzheimer risk.

The research “reinforces the complexity of Alzheimer disease,” Hode says, and “highlights the importance of sharing data freely and widely with the research community.”

Hundreds of reports since the 1980s have associated Alzheimer disease with bacteria and viruses. But researchers could not explain the connection. Now new research suggests that viral species, particularly herpes viruses, play a role in Alzheimer disease biology.

The hypotheses that link viruses to brain disease are not new, Richard Hodes, MD, director of the National Institute on Aging, says, but this is the first study to provide “strong evidence” based on unbiased approaches and large datasets.

The study, which was funded by National Institute of Aging (NIA) , originally was intended to find out whether drugs used to treat other diseases can be repurposed for treating Alzheimer. Researchers analyzed large datasets from postmortem brain samples to map and compare biological networks underlying Alzheimer disease. They found that the disease biology is impacted by a “complex constellation” of factors, including the ways the interrelated systems of DNA, RNA, proteins, and metabolites interact with molecular, genetic, and clinical aspects of Alzheimer disease.

Among the key findings: Human herpes virus 6A and 7 were more abundant in Alzheimer disease samples than in non-Alzheimer samples. Researchers also found multiple points of overlap between virus-host interactions and genes associated with Alzheimer risk.

The research “reinforces the complexity of Alzheimer disease,” Hode says, and “highlights the importance of sharing data freely and widely with the research community.”

Hundreds of reports since the 1980s have associated Alzheimer disease with bacteria and viruses. But researchers could not explain the connection. Now new research suggests that viral species, particularly herpes viruses, play a role in Alzheimer disease biology.

The hypotheses that link viruses to brain disease are not new, Richard Hodes, MD, director of the National Institute on Aging, says, but this is the first study to provide “strong evidence” based on unbiased approaches and large datasets.

The study, which was funded by National Institute of Aging (NIA) , originally was intended to find out whether drugs used to treat other diseases can be repurposed for treating Alzheimer. Researchers analyzed large datasets from postmortem brain samples to map and compare biological networks underlying Alzheimer disease. They found that the disease biology is impacted by a “complex constellation” of factors, including the ways the interrelated systems of DNA, RNA, proteins, and metabolites interact with molecular, genetic, and clinical aspects of Alzheimer disease.

Among the key findings: Human herpes virus 6A and 7 were more abundant in Alzheimer disease samples than in non-Alzheimer samples. Researchers also found multiple points of overlap between virus-host interactions and genes associated with Alzheimer risk.

The research “reinforces the complexity of Alzheimer disease,” Hode says, and “highlights the importance of sharing data freely and widely with the research community.”

Platelet-transmitted bacterial infections persist as a cause of transfusion-associated morbidity and mortality, according to researchers writing in Mortality and Morbidity Weekly Report. They describe 2 separate clusters of platelet transfusion-associated bacterial sepsis reported in Utah and California, in which 3 patients died.

Contamination of blood products most commonly happens when skin microbiota is introduced during needle insertion. Because most platelets are stored at room temperature, bacteria can proliferate to clinically important levels by the time the unit is transfused, the CDC says. About 1 in 5,000 platelet collections are contaminated; 1 in 100,000 platelet transfusions results in bacterial sepsis.

In Utah, 2 patients received contaminated apheresis platelet units. One developed rigors 30 minutes after infusion, but transfusion-transmitted bacterial infection was not considered because of the patient’s complex medical history. He died 4 days later.

Less than a day after the first patient’s infusion, the second patient received the other platelet unit. No immediate symptoms of sepsis followed but later that day routine laboratory testing revealed new intravascular hemolysis. She died 11 hours after transfusion.

In California, a patient developed vomiting, tachycardia, and hypotension within 15 minutes of an infusion that came from an apheresis blood donation. Although the transfusion was stopped, he died within 5 hours. A second patient developed septic shock approximately 9 hours after infusion but recovered.

Subsequent investigation found that both the Utah and California collection facilities followed current practices. However, the CDC report highlights that even when procedures are followed appropriately, the risk remains. The CDC says evidence-based strategies such as pathogen inactivation, rapid detection devices, and modified screen of bacterial culture protocols can help mitigate that risk.

Platelet-transmitted bacterial infections persist as a cause of transfusion-associated morbidity and mortality, according to researchers writing in Mortality and Morbidity Weekly Report. They describe 2 separate clusters of platelet transfusion-associated bacterial sepsis reported in Utah and California, in which 3 patients died.

Contamination of blood products most commonly happens when skin microbiota is introduced during needle insertion. Because most platelets are stored at room temperature, bacteria can proliferate to clinically important levels by the time the unit is transfused, the CDC says. About 1 in 5,000 platelet collections are contaminated; 1 in 100,000 platelet transfusions results in bacterial sepsis.

In Utah, 2 patients received contaminated apheresis platelet units. One developed rigors 30 minutes after infusion, but transfusion-transmitted bacterial infection was not considered because of the patient’s complex medical history. He died 4 days later.

Less than a day after the first patient’s infusion, the second patient received the other platelet unit. No immediate symptoms of sepsis followed but later that day routine laboratory testing revealed new intravascular hemolysis. She died 11 hours after transfusion.

In California, a patient developed vomiting, tachycardia, and hypotension within 15 minutes of an infusion that came from an apheresis blood donation. Although the transfusion was stopped, he died within 5 hours. A second patient developed septic shock approximately 9 hours after infusion but recovered.

Subsequent investigation found that both the Utah and California collection facilities followed current practices. However, the CDC report highlights that even when procedures are followed appropriately, the risk remains. The CDC says evidence-based strategies such as pathogen inactivation, rapid detection devices, and modified screen of bacterial culture protocols can help mitigate that risk.

Platelet-transmitted bacterial infections persist as a cause of transfusion-associated morbidity and mortality, according to researchers writing in Mortality and Morbidity Weekly Report. They describe 2 separate clusters of platelet transfusion-associated bacterial sepsis reported in Utah and California, in which 3 patients died.

Contamination of blood products most commonly happens when skin microbiota is introduced during needle insertion. Because most platelets are stored at room temperature, bacteria can proliferate to clinically important levels by the time the unit is transfused, the CDC says. About 1 in 5,000 platelet collections are contaminated; 1 in 100,000 platelet transfusions results in bacterial sepsis.

In Utah, 2 patients received contaminated apheresis platelet units. One developed rigors 30 minutes after infusion, but transfusion-transmitted bacterial infection was not considered because of the patient’s complex medical history. He died 4 days later.

Less than a day after the first patient’s infusion, the second patient received the other platelet unit. No immediate symptoms of sepsis followed but later that day routine laboratory testing revealed new intravascular hemolysis. She died 11 hours after transfusion.

In California, a patient developed vomiting, tachycardia, and hypotension within 15 minutes of an infusion that came from an apheresis blood donation. Although the transfusion was stopped, he died within 5 hours. A second patient developed septic shock approximately 9 hours after infusion but recovered.

Subsequent investigation found that both the Utah and California collection facilities followed current practices. However, the CDC report highlights that even when procedures are followed appropriately, the risk remains. The CDC says evidence-based strategies such as pathogen inactivation, rapid detection devices, and modified screen of bacterial culture protocols can help mitigate that risk.

Early detection of small cell lung cancer by low-dose CT had no significant impact on patient survival, based on data from a randomized trial.

windcatcher/Thinkstock.com

Although early detection of small-cell lung cancer might improve outcomes for patients given the metastatic nature of the disease, previous studies on the value and impact of low-dose CT have been divergent, wrote Anish Thomas, MD, of the National Cancer Institute and his colleagues.

In a study published in Chest, the researchers reviewed characteristics of low-dose CT–detected small cell lung cancer (SCLC) in the randomized National Lung Screening Trial (NLST). The trial compared low-dose CT (LDCT) with chest radiography to assess patients at high risk for developing lung cancer. The study population included adults aged 55-74 years with a history of smoking of at least 30 pack-years, and former smokers who had quit within the past 15 years.

A total of 26,722 participants were randomized to the LDCT treatment arm with a median follow-up of 6.5 years; 143 SCLC cases and 926 non–small cell lung cancer (NSCLC) cases were identified in this group.

Of the 143 SCLC cases, 49 (34.2%) were screen detected, 15 (10.5%) were interval detected and 79 (55.2%) were not screened or were identified post screening.

A cancer was defined as screen detected if it was diagnosed within 1 year of a positive screening or diagnosed after a longer period but with no time gap between diagnostic procedures of more than 1 year; an interval cancer was diagnosed within a year of a negative screen, and non-screened cancers were those found in patients who received no NLST screening or other post screening.

Significantly more of the SCLC cases were at stage III or IV than the NSCLC cases (86% vs. 36%). Unfavorable stage III or IV lung cancers were identified in 80% of screen detected, 86% of interval detected, and 90% of nonscreened or postscreened cases.

In addition, 31 (63%) of the 49 screen-detected SCLC cases had at least one noncalcified nodule in the cancer lobe and 24 (49%) had a single NCN in the cancer lobe.

The 3-year cancer-specific survival rates were not significantly different for screen-detected, interval-detected, and nonscreened or postscreened cases (15.3%, 20.0%, and 13.8%, respectively).

“As expected, the majority of SCLC were late-stage cancers, but surprisingly the unfavorable stage distribution was present regardless of whether the cancer was screen-, interval- or post-screen detected,” the researchers noted.

The findings differed from the results of previous smaller studies showing more favorable stage distribution for SCLC cases detected by LDCT, but this difference may be accounted for by various factors including study populations that were smaller, younger, and lacking well-defined risk factors, the researchers said.

“Our findings underscore and provide further granularity to the premise that SCLC is a very aggressive neoplasm, and contrary to smaller prior studies, indicate that LDCT is an ineffective tool to screen for SCLC,” they said. “If early detection of SCLC were to be realistic, it would need to be detected before [lesions] are visible on LDCT,” they emphasized.

The study was supported in part by the National Cancer Institute. The researchers had no financial conflicts to disclose.

SOURCE: Thomas A et al. Chest. 2018 Aug 3. doi: 10.1016/j.chest.2018.07.029.

Early detection of small cell lung cancer by low-dose CT had no significant impact on patient survival, based on data from a randomized trial.

windcatcher/Thinkstock.com

Although early detection of small-cell lung cancer might improve outcomes for patients given the metastatic nature of the disease, previous studies on the value and impact of low-dose CT have been divergent, wrote Anish Thomas, MD, of the National Cancer Institute and his colleagues.

In a study published in Chest, the researchers reviewed characteristics of low-dose CT–detected small cell lung cancer (SCLC) in the randomized National Lung Screening Trial (NLST). The trial compared low-dose CT (LDCT) with chest radiography to assess patients at high risk for developing lung cancer. The study population included adults aged 55-74 years with a history of smoking of at least 30 pack-years, and former smokers who had quit within the past 15 years.

A total of 26,722 participants were randomized to the LDCT treatment arm with a median follow-up of 6.5 years; 143 SCLC cases and 926 non–small cell lung cancer (NSCLC) cases were identified in this group.

Of the 143 SCLC cases, 49 (34.2%) were screen detected, 15 (10.5%) were interval detected and 79 (55.2%) were not screened or were identified post screening.

A cancer was defined as screen detected if it was diagnosed within 1 year of a positive screening or diagnosed after a longer period but with no time gap between diagnostic procedures of more than 1 year; an interval cancer was diagnosed within a year of a negative screen, and non-screened cancers were those found in patients who received no NLST screening or other post screening.

Significantly more of the SCLC cases were at stage III or IV than the NSCLC cases (86% vs. 36%). Unfavorable stage III or IV lung cancers were identified in 80% of screen detected, 86% of interval detected, and 90% of nonscreened or postscreened cases.

In addition, 31 (63%) of the 49 screen-detected SCLC cases had at least one noncalcified nodule in the cancer lobe and 24 (49%) had a single NCN in the cancer lobe.

The 3-year cancer-specific survival rates were not significantly different for screen-detected, interval-detected, and nonscreened or postscreened cases (15.3%, 20.0%, and 13.8%, respectively).

“As expected, the majority of SCLC were late-stage cancers, but surprisingly the unfavorable stage distribution was present regardless of whether the cancer was screen-, interval- or post-screen detected,” the researchers noted.

The findings differed from the results of previous smaller studies showing more favorable stage distribution for SCLC cases detected by LDCT, but this difference may be accounted for by various factors including study populations that were smaller, younger, and lacking well-defined risk factors, the researchers said.

“Our findings underscore and provide further granularity to the premise that SCLC is a very aggressive neoplasm, and contrary to smaller prior studies, indicate that LDCT is an ineffective tool to screen for SCLC,” they said. “If early detection of SCLC were to be realistic, it would need to be detected before [lesions] are visible on LDCT,” they emphasized.

The study was supported in part by the National Cancer Institute. The researchers had no financial conflicts to disclose.

SOURCE: Thomas A et al. Chest. 2018 Aug 3. doi: 10.1016/j.chest.2018.07.029.

Early detection of small cell lung cancer by low-dose CT had no significant impact on patient survival, based on data from a randomized trial.

windcatcher/Thinkstock.com

Although early detection of small-cell lung cancer might improve outcomes for patients given the metastatic nature of the disease, previous studies on the value and impact of low-dose CT have been divergent, wrote Anish Thomas, MD, of the National Cancer Institute and his colleagues.

In a study published in Chest, the researchers reviewed characteristics of low-dose CT–detected small cell lung cancer (SCLC) in the randomized National Lung Screening Trial (NLST). The trial compared low-dose CT (LDCT) with chest radiography to assess patients at high risk for developing lung cancer. The study population included adults aged 55-74 years with a history of smoking of at least 30 pack-years, and former smokers who had quit within the past 15 years.

A total of 26,722 participants were randomized to the LDCT treatment arm with a median follow-up of 6.5 years; 143 SCLC cases and 926 non–small cell lung cancer (NSCLC) cases were identified in this group.

Of the 143 SCLC cases, 49 (34.2%) were screen detected, 15 (10.5%) were interval detected and 79 (55.2%) were not screened or were identified post screening.

A cancer was defined as screen detected if it was diagnosed within 1 year of a positive screening or diagnosed after a longer period but with no time gap between diagnostic procedures of more than 1 year; an interval cancer was diagnosed within a year of a negative screen, and non-screened cancers were those found in patients who received no NLST screening or other post screening.

Significantly more of the SCLC cases were at stage III or IV than the NSCLC cases (86% vs. 36%). Unfavorable stage III or IV lung cancers were identified in 80% of screen detected, 86% of interval detected, and 90% of nonscreened or postscreened cases.

In addition, 31 (63%) of the 49 screen-detected SCLC cases had at least one noncalcified nodule in the cancer lobe and 24 (49%) had a single NCN in the cancer lobe.

The 3-year cancer-specific survival rates were not significantly different for screen-detected, interval-detected, and nonscreened or postscreened cases (15.3%, 20.0%, and 13.8%, respectively).

“As expected, the majority of SCLC were late-stage cancers, but surprisingly the unfavorable stage distribution was present regardless of whether the cancer was screen-, interval- or post-screen detected,” the researchers noted.

The findings differed from the results of previous smaller studies showing more favorable stage distribution for SCLC cases detected by LDCT, but this difference may be accounted for by various factors including study populations that were smaller, younger, and lacking well-defined risk factors, the researchers said.

“Our findings underscore and provide further granularity to the premise that SCLC is a very aggressive neoplasm, and contrary to smaller prior studies, indicate that LDCT is an ineffective tool to screen for SCLC,” they said. “If early detection of SCLC were to be realistic, it would need to be detected before [lesions] are visible on LDCT,” they emphasized.

The study was supported in part by the National Cancer Institute. The researchers had no financial conflicts to disclose.

SOURCE: Thomas A et al. Chest. 2018 Aug 3. doi: 10.1016/j.chest.2018.07.029.

Mycosis fungoides (MF) is the most common type of cutaneous T-cell lymphoma (CTCL). MF is a rare disorder with an unclear etiology. Some have postulated an infectious agent as the cause. Atopic dermatitis may confer an increased risk because of the chronic stimulation of T cells. Males are more commonly affected than females by a 2:1 ratio. A worse prognosis is associated with advanced age. Children and adolescents may be affected as well.

With mycosis fungoides, there are three main types of skin lesions: patch, plaque, and tumor. Patients will progress from patch to plaque to tumor stage in classic MF. Often, lesions begin as scaly, erythematous patches that resemble eczema. Because of the nonspecific nature of early lesions, the median duration from the onset of skin lesions to the diagnosis of MF is 4-6 years. Patch stage lesions may be pruritic or asymptomatic. Commonly, they present in non–sun-exposed areas, such as the buttocks. Annular, infiltrated, red-brown or violaceous plaques can develop, which represent malignant T-cell infiltration. Many patients never progress past the plaque stage. Tumor stage MF is more aggressive, with nodules that may undergo necrosis and ulceration.

The leukemic form of MF is Sézary syndrome. Patients present with pruritic erythroderma and lymphadenopathy. Nail dystrophy, scaling of palms and soles, and alopecia may be present. A peripheral blood smear reveals Sézary cells, which are large, hyperconvoluted lymphocytes. The count of Sézary cells is usually greater than 1000 cells/mm³.

Histology of early lesions may not be diagnostic for CTCL. Often, biopsies will be read as eczematous or psoriasiform for years before the diagnosis of MF is made. Classically, epidermotropism (single-cell exocytosis of lymphocytes into the epidermis) is present. Advanced stages may show a dense infiltrate of lymphocytes in the dermis. Groups of lymphocytes in the epidermis form Pautrier’s microabscesses. Mycosis cells may exhibit cerebriform nuclei. Neoplastic cells in MF are CD3+, CD4+, CD45RO+, CD8–. Tissue can be sent for T-cell gene rearrangement polymerase chain reaction. The presence of monoclonal T-cell gene receptor rearrangements can aid in the diagnosis of MF.

Treatment includes topical steroids, mechlorethamine (nitrogen mustard) or bexarotene gel, PUVA therapy, and narrow-band UVB light for limited and/or patch disease. Localized radiotherapy can be used for more resistant lesions. Topical therapies are preferred in the early stages in MF. Systemic treatments for patients who do not respond to local therapy, or in more advanced disease include methotrexate, interferon-alpha, oral bexarotene, denileukin diftitox, and combination chemotherapy. Photopheresis is reserved for erythrodermic disease.

This case and photo were submitted by Dr. Bilu Martin.

Dr. Bilu Martin is a board-certified dermatologist in private practice in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.

Mycosis fungoides (MF) is the most common type of cutaneous T-cell lymphoma (CTCL). MF is a rare disorder with an unclear etiology. Some have postulated an infectious agent as the cause. Atopic dermatitis may confer an increased risk because of the chronic stimulation of T cells. Males are more commonly affected than females by a 2:1 ratio. A worse prognosis is associated with advanced age. Children and adolescents may be affected as well.

With mycosis fungoides, there are three main types of skin lesions: patch, plaque, and tumor. Patients will progress from patch to plaque to tumor stage in classic MF. Often, lesions begin as scaly, erythematous patches that resemble eczema. Because of the nonspecific nature of early lesions, the median duration from the onset of skin lesions to the diagnosis of MF is 4-6 years. Patch stage lesions may be pruritic or asymptomatic. Commonly, they present in non–sun-exposed areas, such as the buttocks. Annular, infiltrated, red-brown or violaceous plaques can develop, which represent malignant T-cell infiltration. Many patients never progress past the plaque stage. Tumor stage MF is more aggressive, with nodules that may undergo necrosis and ulceration.

The leukemic form of MF is Sézary syndrome. Patients present with pruritic erythroderma and lymphadenopathy. Nail dystrophy, scaling of palms and soles, and alopecia may be present. A peripheral blood smear reveals Sézary cells, which are large, hyperconvoluted lymphocytes. The count of Sézary cells is usually greater than 1000 cells/mm³.

Histology of early lesions may not be diagnostic for CTCL. Often, biopsies will be read as eczematous or psoriasiform for years before the diagnosis of MF is made. Classically, epidermotropism (single-cell exocytosis of lymphocytes into the epidermis) is present. Advanced stages may show a dense infiltrate of lymphocytes in the dermis. Groups of lymphocytes in the epidermis form Pautrier’s microabscesses. Mycosis cells may exhibit cerebriform nuclei. Neoplastic cells in MF are CD3+, CD4+, CD45RO+, CD8–. Tissue can be sent for T-cell gene rearrangement polymerase chain reaction. The presence of monoclonal T-cell gene receptor rearrangements can aid in the diagnosis of MF.

Treatment includes topical steroids, mechlorethamine (nitrogen mustard) or bexarotene gel, PUVA therapy, and narrow-band UVB light for limited and/or patch disease. Localized radiotherapy can be used for more resistant lesions. Topical therapies are preferred in the early stages in MF. Systemic treatments for patients who do not respond to local therapy, or in more advanced disease include methotrexate, interferon-alpha, oral bexarotene, denileukin diftitox, and combination chemotherapy. Photopheresis is reserved for erythrodermic disease.

This case and photo were submitted by Dr. Bilu Martin.

Dr. Bilu Martin is a board-certified dermatologist in private practice in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.

Mycosis fungoides (MF) is the most common type of cutaneous T-cell lymphoma (CTCL). MF is a rare disorder with an unclear etiology. Some have postulated an infectious agent as the cause. Atopic dermatitis may confer an increased risk because of the chronic stimulation of T cells. Males are more commonly affected than females by a 2:1 ratio. A worse prognosis is associated with advanced age. Children and adolescents may be affected as well.

With mycosis fungoides, there are three main types of skin lesions: patch, plaque, and tumor. Patients will progress from patch to plaque to tumor stage in classic MF. Often, lesions begin as scaly, erythematous patches that resemble eczema. Because of the nonspecific nature of early lesions, the median duration from the onset of skin lesions to the diagnosis of MF is 4-6 years. Patch stage lesions may be pruritic or asymptomatic. Commonly, they present in non–sun-exposed areas, such as the buttocks. Annular, infiltrated, red-brown or violaceous plaques can develop, which represent malignant T-cell infiltration. Many patients never progress past the plaque stage. Tumor stage MF is more aggressive, with nodules that may undergo necrosis and ulceration.

The leukemic form of MF is Sézary syndrome. Patients present with pruritic erythroderma and lymphadenopathy. Nail dystrophy, scaling of palms and soles, and alopecia may be present. A peripheral blood smear reveals Sézary cells, which are large, hyperconvoluted lymphocytes. The count of Sézary cells is usually greater than 1000 cells/mm³.

Histology of early lesions may not be diagnostic for CTCL. Often, biopsies will be read as eczematous or psoriasiform for years before the diagnosis of MF is made. Classically, epidermotropism (single-cell exocytosis of lymphocytes into the epidermis) is present. Advanced stages may show a dense infiltrate of lymphocytes in the dermis. Groups of lymphocytes in the epidermis form Pautrier’s microabscesses. Mycosis cells may exhibit cerebriform nuclei. Neoplastic cells in MF are CD3+, CD4+, CD45RO+, CD8–. Tissue can be sent for T-cell gene rearrangement polymerase chain reaction. The presence of monoclonal T-cell gene receptor rearrangements can aid in the diagnosis of MF.

Treatment includes topical steroids, mechlorethamine (nitrogen mustard) or bexarotene gel, PUVA therapy, and narrow-band UVB light for limited and/or patch disease. Localized radiotherapy can be used for more resistant lesions. Topical therapies are preferred in the early stages in MF. Systemic treatments for patients who do not respond to local therapy, or in more advanced disease include methotrexate, interferon-alpha, oral bexarotene, denileukin diftitox, and combination chemotherapy. Photopheresis is reserved for erythrodermic disease.

This case and photo were submitted by Dr. Bilu Martin.

Dr. Bilu Martin is a board-certified dermatologist in private practice in Aventura, Fla. More diagnostic cases are available at edermatologynews.com. To submit a case for possible publication, send an email to dermnews@mdedge.com.

Lung ultrasound score (LUS) is an effective means of predicting whether extremely preterm neonates undergoing continuous positive airway pressure (CPAP) treatment for respiratory distress syndrome (RDS) require surfactant, according to results of study published in Pediatrics.

Herjua/Thinkstock

Lucia De Martino, MD, of the division of pediatrics and neonatal critical care at the A. Béclère Medical Centre of the South Paris University Hospital and her associates enrolled 133 neonates of 30 weeks’ gestation or less born between 2015 and 2016. They designed the prospective diagnostic accuracy cohort study, which was conducted in an academic tertiary care referral neonatal ICU.

The first dose of surfactant was administered at a mean 4 hours of life. Those that required further treatment received a second dose of surfactant at a mean 28 hours of life. Each patient received a single lung ultrasound lasting an average of 3 minutes. In each case, the procedure was well tolerated.

In particular, the study demonstrated that LUS is able to accurately predict the need for a first dose and “reveals fair accuracy when it comes to predicting surfactant retreatment,” they observed. The authors speculate that using LUS to predict retreatment is somewhat less reliable because of either the lower number of patients requiring retreatment or reasons related to the biology of surfactant.

“A LUS cutoff value between 6 and 8 provides optimal sensitivity and specificity for predicting the need for the first surfactant dose, whereas a cutoff value of 10 predicts the need for surfactant retreatment,” Dr. De Martino and her colleagues advised.

Of key importance was the finding that LUS is of greatest value to preterm infants less than 34 weeks’ gestation; the authors observed that LUS had significantly lower diagnostic accuracy in infants who were either late term or term. They offered that this outcome was likely attributable to the homogeneous nature of preterm neonates, who are commonly affected by RDS and tend to present with a variety of respiratory disorders and surfactant injury to differing degrees.

At present, international guidelines only recommend surfactant replacement in cases where CPAP has failed, but administering surfactant within the first 2-3 hours of life is key to reducing bronchopulmonary dysplasia as well as the risk of death, they said.

Current surfactant replacement is determined solely by fraction of inspired oxygen cutoff levels, which can result in delayed or even unnecessary treatment. Because neonates who are extremely preterm benefit the most from treatment, “both situations are potentially harmful because late surfactant replacement is less efficacious and giving surfactant when it is not needed may be invasive and seems to increase lung inflammation in animal models,” Dr. De Martino and her associates cautioned.

The authors had no relevant financial disclosures.

SOURCE: De Martino L et al. Pediatrics. 2018. doi: 10.1542/peds.2018-0463.

Lung ultrasound score (LUS) is an effective means of predicting whether extremely preterm neonates undergoing continuous positive airway pressure (CPAP) treatment for respiratory distress syndrome (RDS) require surfactant, according to results of study published in Pediatrics.

Herjua/Thinkstock

Lucia De Martino, MD, of the division of pediatrics and neonatal critical care at the A. Béclère Medical Centre of the South Paris University Hospital and her associates enrolled 133 neonates of 30 weeks’ gestation or less born between 2015 and 2016. They designed the prospective diagnostic accuracy cohort study, which was conducted in an academic tertiary care referral neonatal ICU.

The first dose of surfactant was administered at a mean 4 hours of life. Those that required further treatment received a second dose of surfactant at a mean 28 hours of life. Each patient received a single lung ultrasound lasting an average of 3 minutes. In each case, the procedure was well tolerated.

In particular, the study demonstrated that LUS is able to accurately predict the need for a first dose and “reveals fair accuracy when it comes to predicting surfactant retreatment,” they observed. The authors speculate that using LUS to predict retreatment is somewhat less reliable because of either the lower number of patients requiring retreatment or reasons related to the biology of surfactant.

“A LUS cutoff value between 6 and 8 provides optimal sensitivity and specificity for predicting the need for the first surfactant dose, whereas a cutoff value of 10 predicts the need for surfactant retreatment,” Dr. De Martino and her colleagues advised.

Of key importance was the finding that LUS is of greatest value to preterm infants less than 34 weeks’ gestation; the authors observed that LUS had significantly lower diagnostic accuracy in infants who were either late term or term. They offered that this outcome was likely attributable to the homogeneous nature of preterm neonates, who are commonly affected by RDS and tend to present with a variety of respiratory disorders and surfactant injury to differing degrees.

At present, international guidelines only recommend surfactant replacement in cases where CPAP has failed, but administering surfactant within the first 2-3 hours of life is key to reducing bronchopulmonary dysplasia as well as the risk of death, they said.

Current surfactant replacement is determined solely by fraction of inspired oxygen cutoff levels, which can result in delayed or even unnecessary treatment. Because neonates who are extremely preterm benefit the most from treatment, “both situations are potentially harmful because late surfactant replacement is less efficacious and giving surfactant when it is not needed may be invasive and seems to increase lung inflammation in animal models,” Dr. De Martino and her associates cautioned.

The authors had no relevant financial disclosures.

SOURCE: De Martino L et al. Pediatrics. 2018. doi: 10.1542/peds.2018-0463.

Lung ultrasound score (LUS) is an effective means of predicting whether extremely preterm neonates undergoing continuous positive airway pressure (CPAP) treatment for respiratory distress syndrome (RDS) require surfactant, according to results of study published in Pediatrics.

Herjua/Thinkstock

Lucia De Martino, MD, of the division of pediatrics and neonatal critical care at the A. Béclère Medical Centre of the South Paris University Hospital and her associates enrolled 133 neonates of 30 weeks’ gestation or less born between 2015 and 2016. They designed the prospective diagnostic accuracy cohort study, which was conducted in an academic tertiary care referral neonatal ICU.

The first dose of surfactant was administered at a mean 4 hours of life. Those that required further treatment received a second dose of surfactant at a mean 28 hours of life. Each patient received a single lung ultrasound lasting an average of 3 minutes. In each case, the procedure was well tolerated.

In particular, the study demonstrated that LUS is able to accurately predict the need for a first dose and “reveals fair accuracy when it comes to predicting surfactant retreatment,” they observed. The authors speculate that using LUS to predict retreatment is somewhat less reliable because of either the lower number of patients requiring retreatment or reasons related to the biology of surfactant.

“A LUS cutoff value between 6 and 8 provides optimal sensitivity and specificity for predicting the need for the first surfactant dose, whereas a cutoff value of 10 predicts the need for surfactant retreatment,” Dr. De Martino and her colleagues advised.

Of key importance was the finding that LUS is of greatest value to preterm infants less than 34 weeks’ gestation; the authors observed that LUS had significantly lower diagnostic accuracy in infants who were either late term or term. They offered that this outcome was likely attributable to the homogeneous nature of preterm neonates, who are commonly affected by RDS and tend to present with a variety of respiratory disorders and surfactant injury to differing degrees.

At present, international guidelines only recommend surfactant replacement in cases where CPAP has failed, but administering surfactant within the first 2-3 hours of life is key to reducing bronchopulmonary dysplasia as well as the risk of death, they said.

Current surfactant replacement is determined solely by fraction of inspired oxygen cutoff levels, which can result in delayed or even unnecessary treatment. Because neonates who are extremely preterm benefit the most from treatment, “both situations are potentially harmful because late surfactant replacement is less efficacious and giving surfactant when it is not needed may be invasive and seems to increase lung inflammation in animal models,” Dr. De Martino and her associates cautioned.

The authors had no relevant financial disclosures.

SOURCE: De Martino L et al. Pediatrics. 2018. doi: 10.1542/peds.2018-0463.