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Experience builds with noninvasive body contouring
ATLANTA – Noninvasive body contouring is the "new frontier" in dermatologic surgery, according to Dr. Michael S. Kaminer.
Last year in the United States, noninvasive contouring was performed more often than liposuction, and while the competition between devices is getting fierce, not all are created equal, said Dr. Kaminer, a dermatologist in private practice in Chestnut Hill, Mass.
In fact, only four devices are approved by the Food and Drug Administration for noninvasive fat removal. Of those, Dr. Kaminer discussed three for which the data – and his own experience – are most compelling: CoolSculpting, which destroys fat through cryolipolysis; Liposonix, which destroys fat using high-intensity focused ultrasound; and the Zerona laser, which destroys fat using LED light.
The CoolSculpting device from Zeltiq made its debut about 7 years ago and was approved in 2012 for fat reduction. Cryolipolysis induces apoptosis in the adipocyte, and then the body clears the dead fat cells.
Case reports suggest that CoolSculpting reduces fat by about 21%, on average, with a single procedure, Dr. Kaminer said at the annual meeting of the American Society for Dermatologic Surgery.
In some cases, 50% fat reduction can be achieved within 90 days. The effects, which include skin tightening, seem to be durable based on 4-year follow-up studies, he said.
In a small pilot study in his practice, Dr. Kaminer found that 80% of patients were happy (rating their improvement as at least a 7 on a scale of 1-10) after a single procedure. The remaining 20% reached that level of satisfaction after a second treatment.
CoolSculpting is particularly useful for treating fat at the bra line and at the waist, with these areas typically requiring two or three treatments in his office, he said.
The CoolCurve+, a new applicator developed by Zeltiq to expand the capabilities of the CoolSculpting device, allows for treatment in more areas.
Liposonix from Solta Medical destroys unwanted subcutaneous adipose tissue and fat using high-intensity focused ultrasound. This device "made a big splash" when it was approved specifically for noninvasive waist circumference reduction in 2011, Dr. Kaminer said.
Most of the end effects are based on heat, although there is some mechanical or acoustical component that disrupts and "basically kills" the fat cells. Some evidence also suggests that this device promotes contraction and thickening of collagen, thereby tightening the skin.
"I think the jury may still be out on that one ... I don’t know if it is a skin-tightening device, but I haven’t seen any proof that would say that it definitely is," he said.
One particular benefit of this device is its customizability. The transducer can be used more heavily in areas where there is more fat and lighter in areas where there is less fat, and it can be worked around the umbilicus in those with an umbilical hernia, so it can be used more as a sculpting device than a "bulk fat remover," he said.
Patient comfort can be an issue with this device. "This hurts, so what we’ve started to do is use a low fluence, multiple-pass protocol," he said. When low fluencies are used, no pain medicine is needed. The exception is treatment of the sensitive inner thighs.
The Zerona laser from Erchonia Medical is approved for general body contouring and basically uses low-level laser therapy to deliver light to the skin. "The key effect of Zerona – and this is sort of the concept that I think we are all going to have to start to think about and decide if we buy it – is the concept of a transitory pore, which is basically a hole that’s poked into a fat cell by exposing it to 635-nm red light," he said. The fat leaks out of the adipocytes, causing long-lasting and perhaps permanent change.
Dr. Kaminer said that he uses CoolSculpting as his "go-to device" for love handles, bra line, and abdomen treatments. The workflow is easy: A nurse can put the applicator on and the patient can read a book for an hour or watch television. This treatment – like any treatment that uses suction – can be problematic in patients with an umbilical hernia, however, he added.
The Liposonix device also can do a nice job on the abdomen and love handles, and perhaps the bra line, and it is really the only device that can be used on the arms and the outer and inner thighs, which "respond really nicely to Liposonix," he said. Treatment can be painful, however, and this can be limiting in some practices.
Dr. Kaminer has been a consultant to Thermage, Sciton, and Zeltiq and has stock ownership or options in Cabochon, Miramar Labs, and Thermage.
ATLANTA – Noninvasive body contouring is the "new frontier" in dermatologic surgery, according to Dr. Michael S. Kaminer.
Last year in the United States, noninvasive contouring was performed more often than liposuction, and while the competition between devices is getting fierce, not all are created equal, said Dr. Kaminer, a dermatologist in private practice in Chestnut Hill, Mass.
In fact, only four devices are approved by the Food and Drug Administration for noninvasive fat removal. Of those, Dr. Kaminer discussed three for which the data – and his own experience – are most compelling: CoolSculpting, which destroys fat through cryolipolysis; Liposonix, which destroys fat using high-intensity focused ultrasound; and the Zerona laser, which destroys fat using LED light.
The CoolSculpting device from Zeltiq made its debut about 7 years ago and was approved in 2012 for fat reduction. Cryolipolysis induces apoptosis in the adipocyte, and then the body clears the dead fat cells.
Case reports suggest that CoolSculpting reduces fat by about 21%, on average, with a single procedure, Dr. Kaminer said at the annual meeting of the American Society for Dermatologic Surgery.
In some cases, 50% fat reduction can be achieved within 90 days. The effects, which include skin tightening, seem to be durable based on 4-year follow-up studies, he said.
In a small pilot study in his practice, Dr. Kaminer found that 80% of patients were happy (rating their improvement as at least a 7 on a scale of 1-10) after a single procedure. The remaining 20% reached that level of satisfaction after a second treatment.
CoolSculpting is particularly useful for treating fat at the bra line and at the waist, with these areas typically requiring two or three treatments in his office, he said.
The CoolCurve+, a new applicator developed by Zeltiq to expand the capabilities of the CoolSculpting device, allows for treatment in more areas.
Liposonix from Solta Medical destroys unwanted subcutaneous adipose tissue and fat using high-intensity focused ultrasound. This device "made a big splash" when it was approved specifically for noninvasive waist circumference reduction in 2011, Dr. Kaminer said.
Most of the end effects are based on heat, although there is some mechanical or acoustical component that disrupts and "basically kills" the fat cells. Some evidence also suggests that this device promotes contraction and thickening of collagen, thereby tightening the skin.
"I think the jury may still be out on that one ... I don’t know if it is a skin-tightening device, but I haven’t seen any proof that would say that it definitely is," he said.
One particular benefit of this device is its customizability. The transducer can be used more heavily in areas where there is more fat and lighter in areas where there is less fat, and it can be worked around the umbilicus in those with an umbilical hernia, so it can be used more as a sculpting device than a "bulk fat remover," he said.
Patient comfort can be an issue with this device. "This hurts, so what we’ve started to do is use a low fluence, multiple-pass protocol," he said. When low fluencies are used, no pain medicine is needed. The exception is treatment of the sensitive inner thighs.
The Zerona laser from Erchonia Medical is approved for general body contouring and basically uses low-level laser therapy to deliver light to the skin. "The key effect of Zerona – and this is sort of the concept that I think we are all going to have to start to think about and decide if we buy it – is the concept of a transitory pore, which is basically a hole that’s poked into a fat cell by exposing it to 635-nm red light," he said. The fat leaks out of the adipocytes, causing long-lasting and perhaps permanent change.
Dr. Kaminer said that he uses CoolSculpting as his "go-to device" for love handles, bra line, and abdomen treatments. The workflow is easy: A nurse can put the applicator on and the patient can read a book for an hour or watch television. This treatment – like any treatment that uses suction – can be problematic in patients with an umbilical hernia, however, he added.
The Liposonix device also can do a nice job on the abdomen and love handles, and perhaps the bra line, and it is really the only device that can be used on the arms and the outer and inner thighs, which "respond really nicely to Liposonix," he said. Treatment can be painful, however, and this can be limiting in some practices.
Dr. Kaminer has been a consultant to Thermage, Sciton, and Zeltiq and has stock ownership or options in Cabochon, Miramar Labs, and Thermage.
ATLANTA – Noninvasive body contouring is the "new frontier" in dermatologic surgery, according to Dr. Michael S. Kaminer.
Last year in the United States, noninvasive contouring was performed more often than liposuction, and while the competition between devices is getting fierce, not all are created equal, said Dr. Kaminer, a dermatologist in private practice in Chestnut Hill, Mass.
In fact, only four devices are approved by the Food and Drug Administration for noninvasive fat removal. Of those, Dr. Kaminer discussed three for which the data – and his own experience – are most compelling: CoolSculpting, which destroys fat through cryolipolysis; Liposonix, which destroys fat using high-intensity focused ultrasound; and the Zerona laser, which destroys fat using LED light.
The CoolSculpting device from Zeltiq made its debut about 7 years ago and was approved in 2012 for fat reduction. Cryolipolysis induces apoptosis in the adipocyte, and then the body clears the dead fat cells.
Case reports suggest that CoolSculpting reduces fat by about 21%, on average, with a single procedure, Dr. Kaminer said at the annual meeting of the American Society for Dermatologic Surgery.
In some cases, 50% fat reduction can be achieved within 90 days. The effects, which include skin tightening, seem to be durable based on 4-year follow-up studies, he said.
In a small pilot study in his practice, Dr. Kaminer found that 80% of patients were happy (rating their improvement as at least a 7 on a scale of 1-10) after a single procedure. The remaining 20% reached that level of satisfaction after a second treatment.
CoolSculpting is particularly useful for treating fat at the bra line and at the waist, with these areas typically requiring two or three treatments in his office, he said.
The CoolCurve+, a new applicator developed by Zeltiq to expand the capabilities of the CoolSculpting device, allows for treatment in more areas.
Liposonix from Solta Medical destroys unwanted subcutaneous adipose tissue and fat using high-intensity focused ultrasound. This device "made a big splash" when it was approved specifically for noninvasive waist circumference reduction in 2011, Dr. Kaminer said.
Most of the end effects are based on heat, although there is some mechanical or acoustical component that disrupts and "basically kills" the fat cells. Some evidence also suggests that this device promotes contraction and thickening of collagen, thereby tightening the skin.
"I think the jury may still be out on that one ... I don’t know if it is a skin-tightening device, but I haven’t seen any proof that would say that it definitely is," he said.
One particular benefit of this device is its customizability. The transducer can be used more heavily in areas where there is more fat and lighter in areas where there is less fat, and it can be worked around the umbilicus in those with an umbilical hernia, so it can be used more as a sculpting device than a "bulk fat remover," he said.
Patient comfort can be an issue with this device. "This hurts, so what we’ve started to do is use a low fluence, multiple-pass protocol," he said. When low fluencies are used, no pain medicine is needed. The exception is treatment of the sensitive inner thighs.
The Zerona laser from Erchonia Medical is approved for general body contouring and basically uses low-level laser therapy to deliver light to the skin. "The key effect of Zerona – and this is sort of the concept that I think we are all going to have to start to think about and decide if we buy it – is the concept of a transitory pore, which is basically a hole that’s poked into a fat cell by exposing it to 635-nm red light," he said. The fat leaks out of the adipocytes, causing long-lasting and perhaps permanent change.
Dr. Kaminer said that he uses CoolSculpting as his "go-to device" for love handles, bra line, and abdomen treatments. The workflow is easy: A nurse can put the applicator on and the patient can read a book for an hour or watch television. This treatment – like any treatment that uses suction – can be problematic in patients with an umbilical hernia, however, he added.
The Liposonix device also can do a nice job on the abdomen and love handles, and perhaps the bra line, and it is really the only device that can be used on the arms and the outer and inner thighs, which "respond really nicely to Liposonix," he said. Treatment can be painful, however, and this can be limiting in some practices.
Dr. Kaminer has been a consultant to Thermage, Sciton, and Zeltiq and has stock ownership or options in Cabochon, Miramar Labs, and Thermage.
EXPERT ANALYSIS FROM THE ANNUAL MEETING OF THE AMERICAN SOCIETY FOR DERMATOLOGIC SURGERY
Supplement boosts hair growth in women
A marine protein–based oral food supplement was safe and associated with significant hair growth in women with self-perceived thinning hair, according to findings from a small randomized controlled, double-blind study.
The mean number of terminal hairs in a 4 cm2 area at the junction of the frontal and lateral hairlines was measured. In 10 women randomized to receive the supplement, terminal hairs increased from 271 at baseline to 571 after 90 days of treatment and 610 after 180 days of treatment. The mean number of terminal hairs in five women randomized to receive placebo was 256 at baseline, 245 after 90 days, and 242 after 180 days, Dr. Glynis Ablon reported in a poster at the annual meeting of the American Society for Dermatologic Surgery.
The mean number of vellus hairs in the treatment group was 46.5 at baseline and did not appreciably change over 180 days; the mean number of vellus hairs in the placebo group was 57 at baseline, 68 at 90 days, and 66 at 180 days, said Dr. Ablon, a Manhattan Beach, Calif.–based dermatologist.
Treated subjects were significantly more likely to report improvements in overall hair volume, scalp coverage, and hair body thickness after 90 days. Improved hair shine, skin moisture retention, and skin smoothness were reported after 180 days, she noted.
Study participants were women aged 21-75 years (mean age, 50 in the treatment group and 48 in the control group) with Fitzpatrick I-IV skin types. All were in generally good health but had perceived hair thinning. All study participants agreed to maintain their baseline diet, medications, and exercise level during the study period, and to maintain consistent hair care throughout the study period.
Treatment group subjects were instructed to take one tablet of the proprietary supplement (Viviscal) each morning and evening with water after a meal.
The study was supported by Lifes2good Inc., the maker of Viviscal. Dr. Ablon received a research grant from Lifes2good.
A marine protein–based oral food supplement was safe and associated with significant hair growth in women with self-perceived thinning hair, according to findings from a small randomized controlled, double-blind study.
The mean number of terminal hairs in a 4 cm2 area at the junction of the frontal and lateral hairlines was measured. In 10 women randomized to receive the supplement, terminal hairs increased from 271 at baseline to 571 after 90 days of treatment and 610 after 180 days of treatment. The mean number of terminal hairs in five women randomized to receive placebo was 256 at baseline, 245 after 90 days, and 242 after 180 days, Dr. Glynis Ablon reported in a poster at the annual meeting of the American Society for Dermatologic Surgery.
The mean number of vellus hairs in the treatment group was 46.5 at baseline and did not appreciably change over 180 days; the mean number of vellus hairs in the placebo group was 57 at baseline, 68 at 90 days, and 66 at 180 days, said Dr. Ablon, a Manhattan Beach, Calif.–based dermatologist.
Treated subjects were significantly more likely to report improvements in overall hair volume, scalp coverage, and hair body thickness after 90 days. Improved hair shine, skin moisture retention, and skin smoothness were reported after 180 days, she noted.
Study participants were women aged 21-75 years (mean age, 50 in the treatment group and 48 in the control group) with Fitzpatrick I-IV skin types. All were in generally good health but had perceived hair thinning. All study participants agreed to maintain their baseline diet, medications, and exercise level during the study period, and to maintain consistent hair care throughout the study period.
Treatment group subjects were instructed to take one tablet of the proprietary supplement (Viviscal) each morning and evening with water after a meal.
The study was supported by Lifes2good Inc., the maker of Viviscal. Dr. Ablon received a research grant from Lifes2good.
A marine protein–based oral food supplement was safe and associated with significant hair growth in women with self-perceived thinning hair, according to findings from a small randomized controlled, double-blind study.
The mean number of terminal hairs in a 4 cm2 area at the junction of the frontal and lateral hairlines was measured. In 10 women randomized to receive the supplement, terminal hairs increased from 271 at baseline to 571 after 90 days of treatment and 610 after 180 days of treatment. The mean number of terminal hairs in five women randomized to receive placebo was 256 at baseline, 245 after 90 days, and 242 after 180 days, Dr. Glynis Ablon reported in a poster at the annual meeting of the American Society for Dermatologic Surgery.
The mean number of vellus hairs in the treatment group was 46.5 at baseline and did not appreciably change over 180 days; the mean number of vellus hairs in the placebo group was 57 at baseline, 68 at 90 days, and 66 at 180 days, said Dr. Ablon, a Manhattan Beach, Calif.–based dermatologist.
Treated subjects were significantly more likely to report improvements in overall hair volume, scalp coverage, and hair body thickness after 90 days. Improved hair shine, skin moisture retention, and skin smoothness were reported after 180 days, she noted.
Study participants were women aged 21-75 years (mean age, 50 in the treatment group and 48 in the control group) with Fitzpatrick I-IV skin types. All were in generally good health but had perceived hair thinning. All study participants agreed to maintain their baseline diet, medications, and exercise level during the study period, and to maintain consistent hair care throughout the study period.
Treatment group subjects were instructed to take one tablet of the proprietary supplement (Viviscal) each morning and evening with water after a meal.
The study was supported by Lifes2good Inc., the maker of Viviscal. Dr. Ablon received a research grant from Lifes2good.
AT THE ANNUAL MEETING OF THE AMERICAN SOCIETY FOR DERMATOLOGIC SURGERY
Major Finding: The mean number of anagen hairs in a prespecified 4 cm2 area of the scalps of 10 women randomized to receive the supplement increased from 271 at baseline to 610 at 180 days after treatment initiation. The mean number of anagen hairs in five women randomized to receive placebo remained essentially the same at 256 at baseline, 245 at 90 days, and 242 at 180 days.
Data Source: A randomized controlled, double-blind study.
Disclosures: This study was supported by Lifes2good Inc., the maker of Viviscal. Dr. Ablon received a research grant from Lifes2good.
Low-level laser effective for reducing upper arm circumference
ATLANTA – Low-level laser therapy produced a significant and durable reduction in upper arm circumference in a randomized, double-blind, sham-controlled study of 62 patients.
An overall reduction in upper arm circumference of at least 1.25 cm was achieved in 58% of 31 patients randomized to receive three, 20-minute treatments each week for 2 weeks, compared with 3% of 31 patients randomized to receive sham treatments, Dr. Mark S. Nestor reported at the annual meeting of the American Society for Dermatologic Surgery.
The mean combined reductions in arm circumference were 2.0 cm after three treatments and 3.7 cm after six active treatments in the intervention group patients, compared with a gain of 0.1 cm and a reduction of 0.3 cm after 3 and 6 treatments, respectively, in the sham-treated control group, said Dr. Nestor, a dermatologist in private practice in Aventura, Fla.
The differences between the intervention and control group were statistically significant, he said.
The results were unchanged at the 2-week follow up. In 14 intervention group patients available for follow-up at 5-10 months post treatment, the decrease in upper arm circumference persisted at 3.25 cm, which was "essentially unchanged from the 4-week result," he noted.
The low-level laser therapy device used for this study (Zerona) consists of five independent diodes emitting 17 mW of red 635-nm laser light in overlapping patterns. A total of 3.94 J/cm2 of energy was delivered during each treatment.
The device has been cleared as a noninvasive body contouring therapy for reducing hip, waist, and thigh circumference, but potential effects of confounding variables when it comes to measuring results have created confusion about the extent of the effects, Dr. Nestor said.
For example, abdominal measures from one day to the next can easily be affected by diet and other factors, he explained.
Upper arm circumference provides a more objective measure.
"I think that this model for body contouring is really wonderful, because [with the upper arm] you don’t see a lot of change from exercise or diet in the short term," he said.
Subjects in this study, who agreed to abstain from changes in diet or exercise during the study period, were treated at one of three participating centers. Arm circumference was measured at three equidistant points between the elbow and shoulder.
There were no reports of pain or discomfort, and no adverse events occurred.
Patient satisfaction was high, Dr. Nestor said. More subjects in the treatment group than in the control group reported satisfaction with the results (65% vs. 22%), improved appearance (81% vs. 26%), and results that exceeded expectations (45% vs. 17%).
Dr. Nestor reported that he has served as a consultant for and received research funding from Erchonia, maker of the Zerona laser therapy device used in this study.
ATLANTA – Low-level laser therapy produced a significant and durable reduction in upper arm circumference in a randomized, double-blind, sham-controlled study of 62 patients.
An overall reduction in upper arm circumference of at least 1.25 cm was achieved in 58% of 31 patients randomized to receive three, 20-minute treatments each week for 2 weeks, compared with 3% of 31 patients randomized to receive sham treatments, Dr. Mark S. Nestor reported at the annual meeting of the American Society for Dermatologic Surgery.
The mean combined reductions in arm circumference were 2.0 cm after three treatments and 3.7 cm after six active treatments in the intervention group patients, compared with a gain of 0.1 cm and a reduction of 0.3 cm after 3 and 6 treatments, respectively, in the sham-treated control group, said Dr. Nestor, a dermatologist in private practice in Aventura, Fla.
The differences between the intervention and control group were statistically significant, he said.
The results were unchanged at the 2-week follow up. In 14 intervention group patients available for follow-up at 5-10 months post treatment, the decrease in upper arm circumference persisted at 3.25 cm, which was "essentially unchanged from the 4-week result," he noted.
The low-level laser therapy device used for this study (Zerona) consists of five independent diodes emitting 17 mW of red 635-nm laser light in overlapping patterns. A total of 3.94 J/cm2 of energy was delivered during each treatment.
The device has been cleared as a noninvasive body contouring therapy for reducing hip, waist, and thigh circumference, but potential effects of confounding variables when it comes to measuring results have created confusion about the extent of the effects, Dr. Nestor said.
For example, abdominal measures from one day to the next can easily be affected by diet and other factors, he explained.
Upper arm circumference provides a more objective measure.
"I think that this model for body contouring is really wonderful, because [with the upper arm] you don’t see a lot of change from exercise or diet in the short term," he said.
Subjects in this study, who agreed to abstain from changes in diet or exercise during the study period, were treated at one of three participating centers. Arm circumference was measured at three equidistant points between the elbow and shoulder.
There were no reports of pain or discomfort, and no adverse events occurred.
Patient satisfaction was high, Dr. Nestor said. More subjects in the treatment group than in the control group reported satisfaction with the results (65% vs. 22%), improved appearance (81% vs. 26%), and results that exceeded expectations (45% vs. 17%).
Dr. Nestor reported that he has served as a consultant for and received research funding from Erchonia, maker of the Zerona laser therapy device used in this study.
ATLANTA – Low-level laser therapy produced a significant and durable reduction in upper arm circumference in a randomized, double-blind, sham-controlled study of 62 patients.
An overall reduction in upper arm circumference of at least 1.25 cm was achieved in 58% of 31 patients randomized to receive three, 20-minute treatments each week for 2 weeks, compared with 3% of 31 patients randomized to receive sham treatments, Dr. Mark S. Nestor reported at the annual meeting of the American Society for Dermatologic Surgery.
The mean combined reductions in arm circumference were 2.0 cm after three treatments and 3.7 cm after six active treatments in the intervention group patients, compared with a gain of 0.1 cm and a reduction of 0.3 cm after 3 and 6 treatments, respectively, in the sham-treated control group, said Dr. Nestor, a dermatologist in private practice in Aventura, Fla.
The differences between the intervention and control group were statistically significant, he said.
The results were unchanged at the 2-week follow up. In 14 intervention group patients available for follow-up at 5-10 months post treatment, the decrease in upper arm circumference persisted at 3.25 cm, which was "essentially unchanged from the 4-week result," he noted.
The low-level laser therapy device used for this study (Zerona) consists of five independent diodes emitting 17 mW of red 635-nm laser light in overlapping patterns. A total of 3.94 J/cm2 of energy was delivered during each treatment.
The device has been cleared as a noninvasive body contouring therapy for reducing hip, waist, and thigh circumference, but potential effects of confounding variables when it comes to measuring results have created confusion about the extent of the effects, Dr. Nestor said.
For example, abdominal measures from one day to the next can easily be affected by diet and other factors, he explained.
Upper arm circumference provides a more objective measure.
"I think that this model for body contouring is really wonderful, because [with the upper arm] you don’t see a lot of change from exercise or diet in the short term," he said.
Subjects in this study, who agreed to abstain from changes in diet or exercise during the study period, were treated at one of three participating centers. Arm circumference was measured at three equidistant points between the elbow and shoulder.
There were no reports of pain or discomfort, and no adverse events occurred.
Patient satisfaction was high, Dr. Nestor said. More subjects in the treatment group than in the control group reported satisfaction with the results (65% vs. 22%), improved appearance (81% vs. 26%), and results that exceeded expectations (45% vs. 17%).
Dr. Nestor reported that he has served as a consultant for and received research funding from Erchonia, maker of the Zerona laser therapy device used in this study.
AT THE ANNUAL MEETING OF THE AMERICAN SOCIETY FOR DERMATOLOGIC SURGERY
Major Finding: The mean combined change in arm circumference was reduced by 2.0 cm after three active treatments and by 3.7 cm after six active treatments. After sham treatments at the same intervals, arm circumference increased 0.1 cm and decreased 0.3 cm, respectively.
Data Source: A randomized, double-blind, sham-controlled study.
Disclosures: Dr. Nestor reported that he has served as a consultant for and received research funding from Erchonia, maker of the low-level laser therapy device (Zerona) used in this study.
Botulinum Toxin Threading Yields More Uniform Result
ATLANTA – The use of a threading technique, rather than the standard depot injection technique, when using botulinum toxin A to treat perioral and glabellar rhytides provides a more uniform and natural cosmetic result, according to Dr. H. William Higgins II.
Threading involves injecting the muscle along its normal anatomic course to paralyze the related muscle more evenly, he explained at the annual meeting of the American Society for Dermatologic Surgery.
For upper and lower lip treatment, for example, injections are made at a 20- to 30-degree angle, entering the skin at a location just lateral to the targeted rhytid. The toxin is dispensed while withdrawing, thereby threading the injection along the length of the orbicularis oris. This differs from the typical approach, which often involves a depot injection at an angle more perpendicular to the skin, said Dr. Higgins of Brown University in Providence, R.I.
For the glabellar lines, the threading technique involves four symmetrical injection points, with two points targeting each corrugator. Injections at the more medial points are made directly above the inner canthus, with intramuscular injections made perpendicularly to the skin in the traditional depot manner.
At the two lateral injection points, however, the needle is inserted in most cases just medial to the mid-pupillary lines, thereby targeting the "tail" of the corrugators, he explained.
"Similar to our approach at the orbicularis oris, rather than injecting at an angle more perpendicular to the skin, we inject at an angle of roughly 20-30 degrees, entering the skin at a location just medial to the glabellar rhytid we intend to treat. The needle is then directed laterally and slightly superiorly in order to follow the anatomy of the corrugator supercilii, and the injection is threaded along the muscle’s length while withdrawing," he explained.
This approach corrects for the inadequate responses sometimes seen when using the typical method of placing subepidermal blebs to produce localized microparesis of the targeted muscle, and could reduce the need for touch-up injections.
Cosmetic outcomes have been excellent and patient satisfaction high with the use of this technique, he said. In his experience, the technique has dramatically reduced the incidence of adverse effects.
"It has been documented that, even with conservative dosing, neuromodulator treatment of perioral rhytides can affect mouth function by weakening the lip sphincter, but this has not been the case in our patient population when using this technique," he said.
Similarly, when treating glabellar rhytides, the injection of the toxin at a more precise depth – and more evenly along the tail of the corrugators, has resulted in a reduced incidence of brow ptosis as well as more natural smoothing.
"This approach helps prevent the undesirable appearance of a 'forehead freeze,' " he said.
The threading technique also results in fewer needle sticks, which means less pain and bruising for the patients.
The use of a longer 1- or 1.5-inch needle could potentially allow for even fewer injections without compromising the result, Dr. Higgins noted.
"Furthermore, this technique could conceivably be applied on other areas of the face. Crow's feet, for example, could be treated with fewer threading injections rather than with multiple depot injections," he said.
Dr. Higgins reported having no relevant financial disclosures.
ATLANTA – The use of a threading technique, rather than the standard depot injection technique, when using botulinum toxin A to treat perioral and glabellar rhytides provides a more uniform and natural cosmetic result, according to Dr. H. William Higgins II.
Threading involves injecting the muscle along its normal anatomic course to paralyze the related muscle more evenly, he explained at the annual meeting of the American Society for Dermatologic Surgery.
For upper and lower lip treatment, for example, injections are made at a 20- to 30-degree angle, entering the skin at a location just lateral to the targeted rhytid. The toxin is dispensed while withdrawing, thereby threading the injection along the length of the orbicularis oris. This differs from the typical approach, which often involves a depot injection at an angle more perpendicular to the skin, said Dr. Higgins of Brown University in Providence, R.I.
For the glabellar lines, the threading technique involves four symmetrical injection points, with two points targeting each corrugator. Injections at the more medial points are made directly above the inner canthus, with intramuscular injections made perpendicularly to the skin in the traditional depot manner.
At the two lateral injection points, however, the needle is inserted in most cases just medial to the mid-pupillary lines, thereby targeting the "tail" of the corrugators, he explained.
"Similar to our approach at the orbicularis oris, rather than injecting at an angle more perpendicular to the skin, we inject at an angle of roughly 20-30 degrees, entering the skin at a location just medial to the glabellar rhytid we intend to treat. The needle is then directed laterally and slightly superiorly in order to follow the anatomy of the corrugator supercilii, and the injection is threaded along the muscle’s length while withdrawing," he explained.
This approach corrects for the inadequate responses sometimes seen when using the typical method of placing subepidermal blebs to produce localized microparesis of the targeted muscle, and could reduce the need for touch-up injections.
Cosmetic outcomes have been excellent and patient satisfaction high with the use of this technique, he said. In his experience, the technique has dramatically reduced the incidence of adverse effects.
"It has been documented that, even with conservative dosing, neuromodulator treatment of perioral rhytides can affect mouth function by weakening the lip sphincter, but this has not been the case in our patient population when using this technique," he said.
Similarly, when treating glabellar rhytides, the injection of the toxin at a more precise depth – and more evenly along the tail of the corrugators, has resulted in a reduced incidence of brow ptosis as well as more natural smoothing.
"This approach helps prevent the undesirable appearance of a 'forehead freeze,' " he said.
The threading technique also results in fewer needle sticks, which means less pain and bruising for the patients.
The use of a longer 1- or 1.5-inch needle could potentially allow for even fewer injections without compromising the result, Dr. Higgins noted.
"Furthermore, this technique could conceivably be applied on other areas of the face. Crow's feet, for example, could be treated with fewer threading injections rather than with multiple depot injections," he said.
Dr. Higgins reported having no relevant financial disclosures.
ATLANTA – The use of a threading technique, rather than the standard depot injection technique, when using botulinum toxin A to treat perioral and glabellar rhytides provides a more uniform and natural cosmetic result, according to Dr. H. William Higgins II.
Threading involves injecting the muscle along its normal anatomic course to paralyze the related muscle more evenly, he explained at the annual meeting of the American Society for Dermatologic Surgery.
For upper and lower lip treatment, for example, injections are made at a 20- to 30-degree angle, entering the skin at a location just lateral to the targeted rhytid. The toxin is dispensed while withdrawing, thereby threading the injection along the length of the orbicularis oris. This differs from the typical approach, which often involves a depot injection at an angle more perpendicular to the skin, said Dr. Higgins of Brown University in Providence, R.I.
For the glabellar lines, the threading technique involves four symmetrical injection points, with two points targeting each corrugator. Injections at the more medial points are made directly above the inner canthus, with intramuscular injections made perpendicularly to the skin in the traditional depot manner.
At the two lateral injection points, however, the needle is inserted in most cases just medial to the mid-pupillary lines, thereby targeting the "tail" of the corrugators, he explained.
"Similar to our approach at the orbicularis oris, rather than injecting at an angle more perpendicular to the skin, we inject at an angle of roughly 20-30 degrees, entering the skin at a location just medial to the glabellar rhytid we intend to treat. The needle is then directed laterally and slightly superiorly in order to follow the anatomy of the corrugator supercilii, and the injection is threaded along the muscle’s length while withdrawing," he explained.
This approach corrects for the inadequate responses sometimes seen when using the typical method of placing subepidermal blebs to produce localized microparesis of the targeted muscle, and could reduce the need for touch-up injections.
Cosmetic outcomes have been excellent and patient satisfaction high with the use of this technique, he said. In his experience, the technique has dramatically reduced the incidence of adverse effects.
"It has been documented that, even with conservative dosing, neuromodulator treatment of perioral rhytides can affect mouth function by weakening the lip sphincter, but this has not been the case in our patient population when using this technique," he said.
Similarly, when treating glabellar rhytides, the injection of the toxin at a more precise depth – and more evenly along the tail of the corrugators, has resulted in a reduced incidence of brow ptosis as well as more natural smoothing.
"This approach helps prevent the undesirable appearance of a 'forehead freeze,' " he said.
The threading technique also results in fewer needle sticks, which means less pain and bruising for the patients.
The use of a longer 1- or 1.5-inch needle could potentially allow for even fewer injections without compromising the result, Dr. Higgins noted.
"Furthermore, this technique could conceivably be applied on other areas of the face. Crow's feet, for example, could be treated with fewer threading injections rather than with multiple depot injections," he said.
Dr. Higgins reported having no relevant financial disclosures.
EXPERT ANALYSIS FROM THE ANNUAL MEETING OF THE AMERICAN SOCIETY FOR DERMATOLOGIC SURGERY
Cryolipolysis Appears Safe for All Skin Types
ATLANTA – Cryolipolysis appears as safe and effective in dark skin types as in lighter skin types, according to a review of outcomes in 396 patients.
The primary goal of the study was to assess whether this technology is safe in patients with dark skin types, given their increased risk for developing postinflammatory hyperpigmentation with cold exposure and other treatments such as laser treatments, Dr. Ava Shamban said at the annual meeting of the American Society for Dermatologic Surgery.
However, no differences were seen in efficacy or safety based on skin type or ethnicity in the patients who participated in the multicenter study, she said.
"Cryolipolysis is, indeed, a color-blind technology."
In fact, patients with darker skin types had slightly higher satisfaction with the procedure, raising the question of whether the treatment might even be more effective in these patients, said Dr. Shamban, a dermatologist in private practice in Santa Monica, Calif.
The patients were treated on the back, flank, and/or abdomen, with most having multiple areas treated. Fitzpatrick skin types II-VI were represented: 85 had type II, 185 had type III, 104 had type IV, 18 had type V, and 4 had type VI.
Numerous ethnicities also were represented: 7 patients were African American, 38 were Asian, 295 were white, 37 were Latino, 5 were Mediterranean, and 14 were of Middle Eastern descent.
Women comprised 84% of the study population, and patients ranged in age from 24 to 74 years, with most in their late 40s to early 50s, Dr. Shamban noted.
No major adverse events occurred. Some patients did, however, experience minor effects, including bruising in 16%, swelling in 20%, and both bruising and swelling in 4%, she said, adding that the incidence of these effects did not differ between those with Fitzpatrick skin types II-III and those with type IV-VI.
Satisfaction with the procedure and outcomes also did not differ between those groups in 201 patients who completed a patient-satisfaction assessment. Only 7% of 122 patients with skin types II-III and 4% of 79 patients with skin types IV-VI were unsatisfied with the results, Dr. Shamban said.
"Cryolipolysis is, indeed, a color-blind technology, and it is a safe and effective method to reduce fat and thickening in patients of all skin types and ethnicities," she concluded.
Dr. Shamban had no disclosures to report. Her coauthor, Dr. Vic Narurkar, reported serving as a consultant for Zeltiq, the maker of the CoolSculpting cryolipolysis system used in this study.
ATLANTA – Cryolipolysis appears as safe and effective in dark skin types as in lighter skin types, according to a review of outcomes in 396 patients.
The primary goal of the study was to assess whether this technology is safe in patients with dark skin types, given their increased risk for developing postinflammatory hyperpigmentation with cold exposure and other treatments such as laser treatments, Dr. Ava Shamban said at the annual meeting of the American Society for Dermatologic Surgery.
However, no differences were seen in efficacy or safety based on skin type or ethnicity in the patients who participated in the multicenter study, she said.
"Cryolipolysis is, indeed, a color-blind technology."
In fact, patients with darker skin types had slightly higher satisfaction with the procedure, raising the question of whether the treatment might even be more effective in these patients, said Dr. Shamban, a dermatologist in private practice in Santa Monica, Calif.
The patients were treated on the back, flank, and/or abdomen, with most having multiple areas treated. Fitzpatrick skin types II-VI were represented: 85 had type II, 185 had type III, 104 had type IV, 18 had type V, and 4 had type VI.
Numerous ethnicities also were represented: 7 patients were African American, 38 were Asian, 295 were white, 37 were Latino, 5 were Mediterranean, and 14 were of Middle Eastern descent.
Women comprised 84% of the study population, and patients ranged in age from 24 to 74 years, with most in their late 40s to early 50s, Dr. Shamban noted.
No major adverse events occurred. Some patients did, however, experience minor effects, including bruising in 16%, swelling in 20%, and both bruising and swelling in 4%, she said, adding that the incidence of these effects did not differ between those with Fitzpatrick skin types II-III and those with type IV-VI.
Satisfaction with the procedure and outcomes also did not differ between those groups in 201 patients who completed a patient-satisfaction assessment. Only 7% of 122 patients with skin types II-III and 4% of 79 patients with skin types IV-VI were unsatisfied with the results, Dr. Shamban said.
"Cryolipolysis is, indeed, a color-blind technology, and it is a safe and effective method to reduce fat and thickening in patients of all skin types and ethnicities," she concluded.
Dr. Shamban had no disclosures to report. Her coauthor, Dr. Vic Narurkar, reported serving as a consultant for Zeltiq, the maker of the CoolSculpting cryolipolysis system used in this study.
ATLANTA – Cryolipolysis appears as safe and effective in dark skin types as in lighter skin types, according to a review of outcomes in 396 patients.
The primary goal of the study was to assess whether this technology is safe in patients with dark skin types, given their increased risk for developing postinflammatory hyperpigmentation with cold exposure and other treatments such as laser treatments, Dr. Ava Shamban said at the annual meeting of the American Society for Dermatologic Surgery.
However, no differences were seen in efficacy or safety based on skin type or ethnicity in the patients who participated in the multicenter study, she said.
"Cryolipolysis is, indeed, a color-blind technology."
In fact, patients with darker skin types had slightly higher satisfaction with the procedure, raising the question of whether the treatment might even be more effective in these patients, said Dr. Shamban, a dermatologist in private practice in Santa Monica, Calif.
The patients were treated on the back, flank, and/or abdomen, with most having multiple areas treated. Fitzpatrick skin types II-VI were represented: 85 had type II, 185 had type III, 104 had type IV, 18 had type V, and 4 had type VI.
Numerous ethnicities also were represented: 7 patients were African American, 38 were Asian, 295 were white, 37 were Latino, 5 were Mediterranean, and 14 were of Middle Eastern descent.
Women comprised 84% of the study population, and patients ranged in age from 24 to 74 years, with most in their late 40s to early 50s, Dr. Shamban noted.
No major adverse events occurred. Some patients did, however, experience minor effects, including bruising in 16%, swelling in 20%, and both bruising and swelling in 4%, she said, adding that the incidence of these effects did not differ between those with Fitzpatrick skin types II-III and those with type IV-VI.
Satisfaction with the procedure and outcomes also did not differ between those groups in 201 patients who completed a patient-satisfaction assessment. Only 7% of 122 patients with skin types II-III and 4% of 79 patients with skin types IV-VI were unsatisfied with the results, Dr. Shamban said.
"Cryolipolysis is, indeed, a color-blind technology, and it is a safe and effective method to reduce fat and thickening in patients of all skin types and ethnicities," she concluded.
Dr. Shamban had no disclosures to report. Her coauthor, Dr. Vic Narurkar, reported serving as a consultant for Zeltiq, the maker of the CoolSculpting cryolipolysis system used in this study.
AT THE ANNUAL MEETING OF THE AMERICAN SOCIETY FOR DERMATOLOGIC SURGERY
Major Finding: No differences were seen in efficacy or safety based on skin type or ethnicity.
Data Source: This review of outcomes involved 396 patients.
Disclosures: Dr. Shamban had no disclosures to report. Her coauthor, Dr. Vic Narurkar, reported serving as a consultant for Zeltiq, the maker of the CoolSculpting cryolipolysis system used in this study.
Imaging Unwarranted in Primary Cutaneous Melanoma
ATLANTA – The routine use of imaging for the staging or surveillance of asymptomatic patients with primary cutaneous melanoma appears unwarranted, according to findings from a comprehensive literature review.
Even in high-risk patients, the use of chest x-ray (CXR), computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET), or PET-CT, yields unacceptably high rates of false positive results and has minimal impact on treatment plans, Dr. Daniel Eisen reported at the annual meeting of the American Society for Dermatologic Surgery.
The findings, which are based on an extensive systematic search of the Medline database for all relevant imaging studies conducted from 1970 to 2011, did suggest that high-frequency ultrasonography might be of diagnostic value for the early detection of subclinical lymph node metastases when used with routine follow-up in high-risk patients, but additional comparative prospective studies are needed to confirm this, said Dr. Eisen of the University of California, Davis.
Among the notable findings, CXR for staging yielded 14 true positive results in 4,320 patients (0.3%) in the reviewed studies. None of these was mentioned as amenable to surgical intervention. In addition, 326 false positives were reported in 3,447 (9.4%) patients with relevant data.
"So, [with CXR for staging] you have about a 20-fold chance of causing your patient undue psychological or iatrogenic harm," Dr. Eisen said.
CXR for surveillance yielded 198 true positive results in 10,046 patients (2%), and false positive results in 384 of 4,055 patients (9.5%).
Based on findings from studies that reported true positives as well as the number of patients who were eligible for or who underwent surgery as a result, 47 of 4,849 patients (1%) may have benefited from CXR surveillance, Dr. Eisen said.
The literature included fewer studies for CT than for CXR, likely because of the increased expense for CT, he noted.
CT was slightly more sensitive for staging, but false positives still outweighed true positives by at least threefold for staging; among 1,111 patients, there were 112 (10%) false positives vs. 41 (3.6%) true positives. CT results altered treatment in 1 of 338 patients (0.3%).
CT for routine surveillance yielded true positives in 63 of 467 patients (13.5%), and false positives in 13 of 127 patients (10.2%). There were no data on the number of patients eligible for surgical intervention based on CT surveillance, Dr. Eisen said.
Even fewer studies were available for MRI, which was almost exclusively used for cerebral imaging. MRI yielded true positives in 13 of 285 patients (4.5%), and false positives in 1 of 185 patients (0.5%). MRI for routine surveillance was addressed in only one study, which showed a true positive rate in 1 of 43 patients (2.3%).
PET for staging yielded true positives in 40 of 821 patients (4.9%), and false positives in 87 of 821 patients (10.6%). PET failed to detect disease in 159 of the patients, for a false negative rate of 19.3%, and changed management decisions in 21 of 191 patients (11%). Only 2 of these patients (1%) were eligible for surgery, however.
PET for post-treatment surveillance yielded true positives in 10 of 252 patients (4%), false positives in 16 of 218 patients (7.3%), and false negatives in 30 of 204 patients (14.7%).
Based on one study, 3 of 30 patients (10%) were found to be eligible for surgery as a result of PET imaging. PET-CT was more sensitive, but results were similarly disappointing, Dr. Eisen said.
Findings were slightly more encouraging for lymph node ultrasonography. In 11 studies, ultrasound staging yielded true positive rates in 100 of 1,035 patients (10%), and false positive results in 73 of 1,035 patients (7%); 44 patients were spared sentinel lymph node biopsies as a result of ultrasound imaging, and instead, proceeded to complete lymph node dissection, Dr. Eisen said. However, ultrasound for staging yielded a false negative result in 120 of 688 patients (17.4%).
Based on 9 studies, ultrasound for surveillance yielded true positive results in the absence of clinical findings in 79 of 1,266 patients (6.2%), false positive results in 12 of 966 patients for whom data were reported (1.2%), and false negative results in 5 of 806 patients (0.62%).
The data are imperfect, but seem to suggest that use of these imaging technologies can do more harm than good, Dr. Eisen said.
While patients may specifically request imaging to alleviate concerns that their primary cutaneous melanoma has advanced or will advance, it is important to keep in mind that, based on these results, the risk of causing unnecessary stress and iatrogenic harm outweigh the potential benefits, he concluded.
Dr. Eisen reported having no disclosures.
ATLANTA – The routine use of imaging for the staging or surveillance of asymptomatic patients with primary cutaneous melanoma appears unwarranted, according to findings from a comprehensive literature review.
Even in high-risk patients, the use of chest x-ray (CXR), computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET), or PET-CT, yields unacceptably high rates of false positive results and has minimal impact on treatment plans, Dr. Daniel Eisen reported at the annual meeting of the American Society for Dermatologic Surgery.
The findings, which are based on an extensive systematic search of the Medline database for all relevant imaging studies conducted from 1970 to 2011, did suggest that high-frequency ultrasonography might be of diagnostic value for the early detection of subclinical lymph node metastases when used with routine follow-up in high-risk patients, but additional comparative prospective studies are needed to confirm this, said Dr. Eisen of the University of California, Davis.
Among the notable findings, CXR for staging yielded 14 true positive results in 4,320 patients (0.3%) in the reviewed studies. None of these was mentioned as amenable to surgical intervention. In addition, 326 false positives were reported in 3,447 (9.4%) patients with relevant data.
"So, [with CXR for staging] you have about a 20-fold chance of causing your patient undue psychological or iatrogenic harm," Dr. Eisen said.
CXR for surveillance yielded 198 true positive results in 10,046 patients (2%), and false positive results in 384 of 4,055 patients (9.5%).
Based on findings from studies that reported true positives as well as the number of patients who were eligible for or who underwent surgery as a result, 47 of 4,849 patients (1%) may have benefited from CXR surveillance, Dr. Eisen said.
The literature included fewer studies for CT than for CXR, likely because of the increased expense for CT, he noted.
CT was slightly more sensitive for staging, but false positives still outweighed true positives by at least threefold for staging; among 1,111 patients, there were 112 (10%) false positives vs. 41 (3.6%) true positives. CT results altered treatment in 1 of 338 patients (0.3%).
CT for routine surveillance yielded true positives in 63 of 467 patients (13.5%), and false positives in 13 of 127 patients (10.2%). There were no data on the number of patients eligible for surgical intervention based on CT surveillance, Dr. Eisen said.
Even fewer studies were available for MRI, which was almost exclusively used for cerebral imaging. MRI yielded true positives in 13 of 285 patients (4.5%), and false positives in 1 of 185 patients (0.5%). MRI for routine surveillance was addressed in only one study, which showed a true positive rate in 1 of 43 patients (2.3%).
PET for staging yielded true positives in 40 of 821 patients (4.9%), and false positives in 87 of 821 patients (10.6%). PET failed to detect disease in 159 of the patients, for a false negative rate of 19.3%, and changed management decisions in 21 of 191 patients (11%). Only 2 of these patients (1%) were eligible for surgery, however.
PET for post-treatment surveillance yielded true positives in 10 of 252 patients (4%), false positives in 16 of 218 patients (7.3%), and false negatives in 30 of 204 patients (14.7%).
Based on one study, 3 of 30 patients (10%) were found to be eligible for surgery as a result of PET imaging. PET-CT was more sensitive, but results were similarly disappointing, Dr. Eisen said.
Findings were slightly more encouraging for lymph node ultrasonography. In 11 studies, ultrasound staging yielded true positive rates in 100 of 1,035 patients (10%), and false positive results in 73 of 1,035 patients (7%); 44 patients were spared sentinel lymph node biopsies as a result of ultrasound imaging, and instead, proceeded to complete lymph node dissection, Dr. Eisen said. However, ultrasound for staging yielded a false negative result in 120 of 688 patients (17.4%).
Based on 9 studies, ultrasound for surveillance yielded true positive results in the absence of clinical findings in 79 of 1,266 patients (6.2%), false positive results in 12 of 966 patients for whom data were reported (1.2%), and false negative results in 5 of 806 patients (0.62%).
The data are imperfect, but seem to suggest that use of these imaging technologies can do more harm than good, Dr. Eisen said.
While patients may specifically request imaging to alleviate concerns that their primary cutaneous melanoma has advanced or will advance, it is important to keep in mind that, based on these results, the risk of causing unnecessary stress and iatrogenic harm outweigh the potential benefits, he concluded.
Dr. Eisen reported having no disclosures.
ATLANTA – The routine use of imaging for the staging or surveillance of asymptomatic patients with primary cutaneous melanoma appears unwarranted, according to findings from a comprehensive literature review.
Even in high-risk patients, the use of chest x-ray (CXR), computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET), or PET-CT, yields unacceptably high rates of false positive results and has minimal impact on treatment plans, Dr. Daniel Eisen reported at the annual meeting of the American Society for Dermatologic Surgery.
The findings, which are based on an extensive systematic search of the Medline database for all relevant imaging studies conducted from 1970 to 2011, did suggest that high-frequency ultrasonography might be of diagnostic value for the early detection of subclinical lymph node metastases when used with routine follow-up in high-risk patients, but additional comparative prospective studies are needed to confirm this, said Dr. Eisen of the University of California, Davis.
Among the notable findings, CXR for staging yielded 14 true positive results in 4,320 patients (0.3%) in the reviewed studies. None of these was mentioned as amenable to surgical intervention. In addition, 326 false positives were reported in 3,447 (9.4%) patients with relevant data.
"So, [with CXR for staging] you have about a 20-fold chance of causing your patient undue psychological or iatrogenic harm," Dr. Eisen said.
CXR for surveillance yielded 198 true positive results in 10,046 patients (2%), and false positive results in 384 of 4,055 patients (9.5%).
Based on findings from studies that reported true positives as well as the number of patients who were eligible for or who underwent surgery as a result, 47 of 4,849 patients (1%) may have benefited from CXR surveillance, Dr. Eisen said.
The literature included fewer studies for CT than for CXR, likely because of the increased expense for CT, he noted.
CT was slightly more sensitive for staging, but false positives still outweighed true positives by at least threefold for staging; among 1,111 patients, there were 112 (10%) false positives vs. 41 (3.6%) true positives. CT results altered treatment in 1 of 338 patients (0.3%).
CT for routine surveillance yielded true positives in 63 of 467 patients (13.5%), and false positives in 13 of 127 patients (10.2%). There were no data on the number of patients eligible for surgical intervention based on CT surveillance, Dr. Eisen said.
Even fewer studies were available for MRI, which was almost exclusively used for cerebral imaging. MRI yielded true positives in 13 of 285 patients (4.5%), and false positives in 1 of 185 patients (0.5%). MRI for routine surveillance was addressed in only one study, which showed a true positive rate in 1 of 43 patients (2.3%).
PET for staging yielded true positives in 40 of 821 patients (4.9%), and false positives in 87 of 821 patients (10.6%). PET failed to detect disease in 159 of the patients, for a false negative rate of 19.3%, and changed management decisions in 21 of 191 patients (11%). Only 2 of these patients (1%) were eligible for surgery, however.
PET for post-treatment surveillance yielded true positives in 10 of 252 patients (4%), false positives in 16 of 218 patients (7.3%), and false negatives in 30 of 204 patients (14.7%).
Based on one study, 3 of 30 patients (10%) were found to be eligible for surgery as a result of PET imaging. PET-CT was more sensitive, but results were similarly disappointing, Dr. Eisen said.
Findings were slightly more encouraging for lymph node ultrasonography. In 11 studies, ultrasound staging yielded true positive rates in 100 of 1,035 patients (10%), and false positive results in 73 of 1,035 patients (7%); 44 patients were spared sentinel lymph node biopsies as a result of ultrasound imaging, and instead, proceeded to complete lymph node dissection, Dr. Eisen said. However, ultrasound for staging yielded a false negative result in 120 of 688 patients (17.4%).
Based on 9 studies, ultrasound for surveillance yielded true positive results in the absence of clinical findings in 79 of 1,266 patients (6.2%), false positive results in 12 of 966 patients for whom data were reported (1.2%), and false negative results in 5 of 806 patients (0.62%).
The data are imperfect, but seem to suggest that use of these imaging technologies can do more harm than good, Dr. Eisen said.
While patients may specifically request imaging to alleviate concerns that their primary cutaneous melanoma has advanced or will advance, it is important to keep in mind that, based on these results, the risk of causing unnecessary stress and iatrogenic harm outweigh the potential benefits, he concluded.
Dr. Eisen reported having no disclosures.
AT THE ANNUAL MEETING OF THE AMERICAN SOCIETY FOR DERMATOLOGIC SURGERY
Major Finding: Among the imaging modalities studied, the use of chest x-ray for staging primary cutaneous melanoma yielded true positives in 0.3% of patients and false positives in 9.4%.
Data Source: The data are derived from a comprehensive review of the Medline database.
Disclosures: Dr. Eisen reported having no disclosures.
Vein Sealed With Superglue-Based Implant
ATLANTA – A cyanoacrylate adhesive–based implant is feasible, safe, and effective for the treatment of great saphenous vein incompetence, according to 1-year follow-up data from the first study of the product in humans.
The treatment requires neither local anesthesia nor use of medical compression stockings, Dr. Thomas Proebstle reported at the annual meeting of the American Society for Dermatologic Surgery.
Of 38 patients with an incompetent great saphenous vein who were treated with a proprietary formulation of cyanoacrylate adhesive (commonly known as superglue), 100% demonstrated complete closure of the vein immediately and at the 48-hour follow-up, as measured using duplex ultrasound and clinical examination; at 1-year follow-up, 92% maintained complete closure of the vein, said Dr. Proebstle of Hirschberg, Germany. One complete recanalization and two partial recanalizations occurred during follow-up – at 1, 3, and 6 months, respectively, he noted.
Most patients (89%) had improvement in leg edema within 48 hours, and all had venous clinical severity score improvement, which changed from a mean of 6.1 at baseline to a mean of 1.1 at 6 months.
The study involved 29 women and 9 men with a median age of 51 years. Treatment was administered by catheter deployment under ultrasound guidance via a repetitive bolus injection algorithm, Dr. Proebstle noted. No tumescent anesthesia or compression stockings were used.
For this study, the mean total volume of endovenous cyanoacrylate adhesive delivered was 1.26 mL. Side effects were mild and self-limited.
The cyanoacrylate adhesive implant, known as the VenaSeal Sapheon closure system, has received European Union regulatory approval. The manufacturer, Sapheon, is currently preparing for U.S. clinical trials and Food and Drug Administration approval, according to the company’s website.
Dr. Proebstle is a consultant for Sapheon. He also owns stock in the company.
ATLANTA – A cyanoacrylate adhesive–based implant is feasible, safe, and effective for the treatment of great saphenous vein incompetence, according to 1-year follow-up data from the first study of the product in humans.
The treatment requires neither local anesthesia nor use of medical compression stockings, Dr. Thomas Proebstle reported at the annual meeting of the American Society for Dermatologic Surgery.
Of 38 patients with an incompetent great saphenous vein who were treated with a proprietary formulation of cyanoacrylate adhesive (commonly known as superglue), 100% demonstrated complete closure of the vein immediately and at the 48-hour follow-up, as measured using duplex ultrasound and clinical examination; at 1-year follow-up, 92% maintained complete closure of the vein, said Dr. Proebstle of Hirschberg, Germany. One complete recanalization and two partial recanalizations occurred during follow-up – at 1, 3, and 6 months, respectively, he noted.
Most patients (89%) had improvement in leg edema within 48 hours, and all had venous clinical severity score improvement, which changed from a mean of 6.1 at baseline to a mean of 1.1 at 6 months.
The study involved 29 women and 9 men with a median age of 51 years. Treatment was administered by catheter deployment under ultrasound guidance via a repetitive bolus injection algorithm, Dr. Proebstle noted. No tumescent anesthesia or compression stockings were used.
For this study, the mean total volume of endovenous cyanoacrylate adhesive delivered was 1.26 mL. Side effects were mild and self-limited.
The cyanoacrylate adhesive implant, known as the VenaSeal Sapheon closure system, has received European Union regulatory approval. The manufacturer, Sapheon, is currently preparing for U.S. clinical trials and Food and Drug Administration approval, according to the company’s website.
Dr. Proebstle is a consultant for Sapheon. He also owns stock in the company.
ATLANTA – A cyanoacrylate adhesive–based implant is feasible, safe, and effective for the treatment of great saphenous vein incompetence, according to 1-year follow-up data from the first study of the product in humans.
The treatment requires neither local anesthesia nor use of medical compression stockings, Dr. Thomas Proebstle reported at the annual meeting of the American Society for Dermatologic Surgery.
Of 38 patients with an incompetent great saphenous vein who were treated with a proprietary formulation of cyanoacrylate adhesive (commonly known as superglue), 100% demonstrated complete closure of the vein immediately and at the 48-hour follow-up, as measured using duplex ultrasound and clinical examination; at 1-year follow-up, 92% maintained complete closure of the vein, said Dr. Proebstle of Hirschberg, Germany. One complete recanalization and two partial recanalizations occurred during follow-up – at 1, 3, and 6 months, respectively, he noted.
Most patients (89%) had improvement in leg edema within 48 hours, and all had venous clinical severity score improvement, which changed from a mean of 6.1 at baseline to a mean of 1.1 at 6 months.
The study involved 29 women and 9 men with a median age of 51 years. Treatment was administered by catheter deployment under ultrasound guidance via a repetitive bolus injection algorithm, Dr. Proebstle noted. No tumescent anesthesia or compression stockings were used.
For this study, the mean total volume of endovenous cyanoacrylate adhesive delivered was 1.26 mL. Side effects were mild and self-limited.
The cyanoacrylate adhesive implant, known as the VenaSeal Sapheon closure system, has received European Union regulatory approval. The manufacturer, Sapheon, is currently preparing for U.S. clinical trials and Food and Drug Administration approval, according to the company’s website.
Dr. Proebstle is a consultant for Sapheon. He also owns stock in the company.
AT THE ANNUAL MEETING OF THE AMERICAN SOCIETY FOR DERMATOLOGIC SURGERY
Major Finding: Of 38 patients with an incompetent great saphenous vein who were treated with a proprietary formulation of cyanoacrylate adhesive, 100% demonstrated complete closure of the vein immediately and at the 48-hour follow-up.
Data Source: Data are from a prospective study involving 38 patients.
Disclosures: Dr. Proebstle is a consultant for Sapheon. He also owns stock in the company.
Topical Fluorocarbon Speeds Tattoo Removal Process
ATLANTA – Applying the topical fluorocarbon perfluorodecalin prior to Q-switched laser treatment for tattoo removal allows for immediate retreatment of the tattoo, thereby improving results while decreasing overall treatment time, according to Dr. Roy Geronemus.
The findings have important implications for improving outcomes and patient satisfaction, given that tattoo removal can require 10-20 sessions, depending on factors such as the age and colors of the tattoo, and that tattoos – and thus tattoo removal – continue to increase in popularity, he said. "For a busy practice or impatient patients like we have in New York, this has been a nice advance," Dr. Geronemus said at the annual meeting of the American Society for Dermatologic Surgery.
The approach builds on the "R20 technique" described earlier this year in a study published in the Journal of the American Academy of Dermatology. R20 involves the use of multiple treatment passes that are made at 20-minute intervals.
Typically, after an initial pass, tiny white bubbles form in the superficial papillary dermis, appearing as a whitening of the skin. Retreatment while these bubbles are present elicits a limited reaction.
The R20 technique was developed when investigators found that the bubbles disappear after 20 minutes, and, thus, tested the technique in a study of 12 adults. The patients were randomized to a single treatment pass with a Q-switched alexandrite laser (5.5 J/cm2, 755 nm, 100-nanosecond pulse duration, 3-mm spot size) or to four passes at 20 minute intervals.
The first treatment caused an immediate whitening reaction, but little or no whitening occurred after subsequent passes at 20-minute intervals. However, at 90-day follow-up, significant improvement was seen in the R20 group, compared with the single-treatment group, and light microscopy demonstrated greater dispersion of tattoo ink with the R20 approach. (J. Am. Acad. Dermatol. 2012;66:271-7).
Despite the increased efficacy using this approach, the time required to complete four passes at 20-minute intervals makes it impractical in the clinical setting, said Dr. Geronemus, a dermatologist in private practice in New York.
"So with this idea in mind, we began to look at a concept that would allow us to re-treat tattoos immediately without waiting 20 minutes," he said, explaining that topical perfluorodecalin helps dissolve the gas seen after the application of the Q-switched laser and speeds the resolution of the whitening.
"Rather than waiting 20 minutes, the gas dissolves almost immediately, allowing you to re-treat, and we’re now re-treating three or four times in a matter of minutes rather than waiting the 80 minutes that the R20 technique would take for a four-time treatment session," he said.
In his experience, results with perfluorodecalin are comparable to those seen with the R20 technique – but with greater convenience for the patient.
His observations were confirmed on optical coherence tomography scanning, which demonstrated that cavitation levels are indeed reduced by the use of perfluorodecalin.
Dr. Geronemus is an investigator for Cutera, Cynosure, Palomar, Solta Medical, and Syneron. He is also on the medical advisory board for Cynosure, Lumenis, Photomedex, Syneron, and Zeltiq. He reported that he is a Zeltiq shareholder.
ATLANTA – Applying the topical fluorocarbon perfluorodecalin prior to Q-switched laser treatment for tattoo removal allows for immediate retreatment of the tattoo, thereby improving results while decreasing overall treatment time, according to Dr. Roy Geronemus.
The findings have important implications for improving outcomes and patient satisfaction, given that tattoo removal can require 10-20 sessions, depending on factors such as the age and colors of the tattoo, and that tattoos – and thus tattoo removal – continue to increase in popularity, he said. "For a busy practice or impatient patients like we have in New York, this has been a nice advance," Dr. Geronemus said at the annual meeting of the American Society for Dermatologic Surgery.
The approach builds on the "R20 technique" described earlier this year in a study published in the Journal of the American Academy of Dermatology. R20 involves the use of multiple treatment passes that are made at 20-minute intervals.
Typically, after an initial pass, tiny white bubbles form in the superficial papillary dermis, appearing as a whitening of the skin. Retreatment while these bubbles are present elicits a limited reaction.
The R20 technique was developed when investigators found that the bubbles disappear after 20 minutes, and, thus, tested the technique in a study of 12 adults. The patients were randomized to a single treatment pass with a Q-switched alexandrite laser (5.5 J/cm2, 755 nm, 100-nanosecond pulse duration, 3-mm spot size) or to four passes at 20 minute intervals.
The first treatment caused an immediate whitening reaction, but little or no whitening occurred after subsequent passes at 20-minute intervals. However, at 90-day follow-up, significant improvement was seen in the R20 group, compared with the single-treatment group, and light microscopy demonstrated greater dispersion of tattoo ink with the R20 approach. (J. Am. Acad. Dermatol. 2012;66:271-7).
Despite the increased efficacy using this approach, the time required to complete four passes at 20-minute intervals makes it impractical in the clinical setting, said Dr. Geronemus, a dermatologist in private practice in New York.
"So with this idea in mind, we began to look at a concept that would allow us to re-treat tattoos immediately without waiting 20 minutes," he said, explaining that topical perfluorodecalin helps dissolve the gas seen after the application of the Q-switched laser and speeds the resolution of the whitening.
"Rather than waiting 20 minutes, the gas dissolves almost immediately, allowing you to re-treat, and we’re now re-treating three or four times in a matter of minutes rather than waiting the 80 minutes that the R20 technique would take for a four-time treatment session," he said.
In his experience, results with perfluorodecalin are comparable to those seen with the R20 technique – but with greater convenience for the patient.
His observations were confirmed on optical coherence tomography scanning, which demonstrated that cavitation levels are indeed reduced by the use of perfluorodecalin.
Dr. Geronemus is an investigator for Cutera, Cynosure, Palomar, Solta Medical, and Syneron. He is also on the medical advisory board for Cynosure, Lumenis, Photomedex, Syneron, and Zeltiq. He reported that he is a Zeltiq shareholder.
ATLANTA – Applying the topical fluorocarbon perfluorodecalin prior to Q-switched laser treatment for tattoo removal allows for immediate retreatment of the tattoo, thereby improving results while decreasing overall treatment time, according to Dr. Roy Geronemus.
The findings have important implications for improving outcomes and patient satisfaction, given that tattoo removal can require 10-20 sessions, depending on factors such as the age and colors of the tattoo, and that tattoos – and thus tattoo removal – continue to increase in popularity, he said. "For a busy practice or impatient patients like we have in New York, this has been a nice advance," Dr. Geronemus said at the annual meeting of the American Society for Dermatologic Surgery.
The approach builds on the "R20 technique" described earlier this year in a study published in the Journal of the American Academy of Dermatology. R20 involves the use of multiple treatment passes that are made at 20-minute intervals.
Typically, after an initial pass, tiny white bubbles form in the superficial papillary dermis, appearing as a whitening of the skin. Retreatment while these bubbles are present elicits a limited reaction.
The R20 technique was developed when investigators found that the bubbles disappear after 20 minutes, and, thus, tested the technique in a study of 12 adults. The patients were randomized to a single treatment pass with a Q-switched alexandrite laser (5.5 J/cm2, 755 nm, 100-nanosecond pulse duration, 3-mm spot size) or to four passes at 20 minute intervals.
The first treatment caused an immediate whitening reaction, but little or no whitening occurred after subsequent passes at 20-minute intervals. However, at 90-day follow-up, significant improvement was seen in the R20 group, compared with the single-treatment group, and light microscopy demonstrated greater dispersion of tattoo ink with the R20 approach. (J. Am. Acad. Dermatol. 2012;66:271-7).
Despite the increased efficacy using this approach, the time required to complete four passes at 20-minute intervals makes it impractical in the clinical setting, said Dr. Geronemus, a dermatologist in private practice in New York.
"So with this idea in mind, we began to look at a concept that would allow us to re-treat tattoos immediately without waiting 20 minutes," he said, explaining that topical perfluorodecalin helps dissolve the gas seen after the application of the Q-switched laser and speeds the resolution of the whitening.
"Rather than waiting 20 minutes, the gas dissolves almost immediately, allowing you to re-treat, and we’re now re-treating three or four times in a matter of minutes rather than waiting the 80 minutes that the R20 technique would take for a four-time treatment session," he said.
In his experience, results with perfluorodecalin are comparable to those seen with the R20 technique – but with greater convenience for the patient.
His observations were confirmed on optical coherence tomography scanning, which demonstrated that cavitation levels are indeed reduced by the use of perfluorodecalin.
Dr. Geronemus is an investigator for Cutera, Cynosure, Palomar, Solta Medical, and Syneron. He is also on the medical advisory board for Cynosure, Lumenis, Photomedex, Syneron, and Zeltiq. He reported that he is a Zeltiq shareholder.
EXPERT ANALYSIS FROM THE ANNUAL MEETING OF THE AMERICAN SOCIETY FOR DERMATOLOGIC SURGERY