Beauty sleep: Sleep deprivation and the skin

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Fri, 01/18/2019 - 16:30

 



There are many, many, short-term and long-term consequences of sleep deprivation. The most clinically apparent ones – swollen, sunken eyes; dark circles; and pale, dehydrated skin – are obvious. However the subclinical consequences are not so obvious. Sleep deprivation affects wound healing, collagen growth, skin hydration, and skin texture. Inflammation is also higher in sleep-deprived patients, causing outbreaks of acne, eczema, psoriasis, and skin allergies.

Dr. Lily Talakoub
Dr. Lily Talakoub
Sleep deprivation can be caused by artificial light, shift work, sleep disturbances, and social life. Studies have shown that sleep plays a role in restoring the immune system function and that changes in the immune response triggered by high-stress states such as sleep deprivation affect collagen production. Several studies of prolonged sleep deprivation also suggest breaks in skin barrier function. Rats subjected to prolonged periods of sleep loss in a study developed ulcerative lesions on their paws and tails, and susceptibility to bacterial infection.

The reduction of sleep time affects the composition and integrity of the skin. Sleep deprivation increases glucocorticoid production. The elevation of cortisol inhibits fibroblast function and increases matrix metalloproteinases (collagenase, gelatinase). Matrix metalloproteinases accelerate collagen and elastin breakdown, which is essential to skin integrity, and hastens the aging process by increasing wrinkles, decreasing skin thickness, inhibiting growth factors, and decreasing skin elasticity.

Are there treatments to reverse these signs? Yes. Treatments to help increase skin collagen production include microneedling, radiofrequency devices, fractionated lasers, and topical agents such as retinoids. However, we cannot readily reverse the impact inflammatory processes, skin barrier dysfunction, or the disruption of the skin biome has on our skin. Beauty sleep is both necessary and irreplaceable.
 

References

1. Am J Physiol. 1993 Nov;265(5 Pt 2):R1148-54.

2. Am J Physiol Regul Integr Comp Physiol. 2000 Apr;278(4):R905-16.

3. Am J Physiol Regul Integr Comp Physiol. 2005 Feb;288(2):R374-83.

4. Am J Physiol Regul Integr Comp Physiol. 2007 Jul;293(1):R504-9.

5. Med Hypotheses. 2010 Dec;75(6):535-7.

6. Sleep. 2013 Sep 1;36(9):1355-60.

7. BMJ. 2010 Dec 14;341:c6614.

8. Brain Behav Immun. 2009 Nov;23(8):1089-95.
 

Dr. Talakoub and Dr. Wesley and are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

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There are many, many, short-term and long-term consequences of sleep deprivation. The most clinically apparent ones – swollen, sunken eyes; dark circles; and pale, dehydrated skin – are obvious. However the subclinical consequences are not so obvious. Sleep deprivation affects wound healing, collagen growth, skin hydration, and skin texture. Inflammation is also higher in sleep-deprived patients, causing outbreaks of acne, eczema, psoriasis, and skin allergies.

Dr. Lily Talakoub
Dr. Lily Talakoub
Sleep deprivation can be caused by artificial light, shift work, sleep disturbances, and social life. Studies have shown that sleep plays a role in restoring the immune system function and that changes in the immune response triggered by high-stress states such as sleep deprivation affect collagen production. Several studies of prolonged sleep deprivation also suggest breaks in skin barrier function. Rats subjected to prolonged periods of sleep loss in a study developed ulcerative lesions on their paws and tails, and susceptibility to bacterial infection.

The reduction of sleep time affects the composition and integrity of the skin. Sleep deprivation increases glucocorticoid production. The elevation of cortisol inhibits fibroblast function and increases matrix metalloproteinases (collagenase, gelatinase). Matrix metalloproteinases accelerate collagen and elastin breakdown, which is essential to skin integrity, and hastens the aging process by increasing wrinkles, decreasing skin thickness, inhibiting growth factors, and decreasing skin elasticity.

Are there treatments to reverse these signs? Yes. Treatments to help increase skin collagen production include microneedling, radiofrequency devices, fractionated lasers, and topical agents such as retinoids. However, we cannot readily reverse the impact inflammatory processes, skin barrier dysfunction, or the disruption of the skin biome has on our skin. Beauty sleep is both necessary and irreplaceable.
 

References

1. Am J Physiol. 1993 Nov;265(5 Pt 2):R1148-54.

2. Am J Physiol Regul Integr Comp Physiol. 2000 Apr;278(4):R905-16.

3. Am J Physiol Regul Integr Comp Physiol. 2005 Feb;288(2):R374-83.

4. Am J Physiol Regul Integr Comp Physiol. 2007 Jul;293(1):R504-9.

5. Med Hypotheses. 2010 Dec;75(6):535-7.

6. Sleep. 2013 Sep 1;36(9):1355-60.

7. BMJ. 2010 Dec 14;341:c6614.

8. Brain Behav Immun. 2009 Nov;23(8):1089-95.
 

Dr. Talakoub and Dr. Wesley and are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

 



There are many, many, short-term and long-term consequences of sleep deprivation. The most clinically apparent ones – swollen, sunken eyes; dark circles; and pale, dehydrated skin – are obvious. However the subclinical consequences are not so obvious. Sleep deprivation affects wound healing, collagen growth, skin hydration, and skin texture. Inflammation is also higher in sleep-deprived patients, causing outbreaks of acne, eczema, psoriasis, and skin allergies.

Dr. Lily Talakoub
Dr. Lily Talakoub
Sleep deprivation can be caused by artificial light, shift work, sleep disturbances, and social life. Studies have shown that sleep plays a role in restoring the immune system function and that changes in the immune response triggered by high-stress states such as sleep deprivation affect collagen production. Several studies of prolonged sleep deprivation also suggest breaks in skin barrier function. Rats subjected to prolonged periods of sleep loss in a study developed ulcerative lesions on their paws and tails, and susceptibility to bacterial infection.

The reduction of sleep time affects the composition and integrity of the skin. Sleep deprivation increases glucocorticoid production. The elevation of cortisol inhibits fibroblast function and increases matrix metalloproteinases (collagenase, gelatinase). Matrix metalloproteinases accelerate collagen and elastin breakdown, which is essential to skin integrity, and hastens the aging process by increasing wrinkles, decreasing skin thickness, inhibiting growth factors, and decreasing skin elasticity.

Are there treatments to reverse these signs? Yes. Treatments to help increase skin collagen production include microneedling, radiofrequency devices, fractionated lasers, and topical agents such as retinoids. However, we cannot readily reverse the impact inflammatory processes, skin barrier dysfunction, or the disruption of the skin biome has on our skin. Beauty sleep is both necessary and irreplaceable.
 

References

1. Am J Physiol. 1993 Nov;265(5 Pt 2):R1148-54.

2. Am J Physiol Regul Integr Comp Physiol. 2000 Apr;278(4):R905-16.

3. Am J Physiol Regul Integr Comp Physiol. 2005 Feb;288(2):R374-83.

4. Am J Physiol Regul Integr Comp Physiol. 2007 Jul;293(1):R504-9.

5. Med Hypotheses. 2010 Dec;75(6):535-7.

6. Sleep. 2013 Sep 1;36(9):1355-60.

7. BMJ. 2010 Dec 14;341:c6614.

8. Brain Behav Immun. 2009 Nov;23(8):1089-95.
 

Dr. Talakoub and Dr. Wesley and are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

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Cannulas versus needles for soft tissue filler injection

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Mon, 01/14/2019 - 09:50

 

With loss of deep fat pad compartments and bony resorption with normal aging, soft tissue fillers have become a mainstay in minimally invasive aesthetic treatments. Preference of injecting with a needle versus a cannula is often user and training dependent. Blunt-tipped cannulas may provide a lower risk of bruising, as well as potentially devastating complications such as intravascular occlusion that can lead to skin necrosis and blindness. Even for advanced injectors, however, cannula use may portend a learning curve if the clinicians are used to injecting with needles.

A recently published observational study using cadaver heads looked at precision in supraperiosteal placement with a sharp needle compared with a blunt tipped cannula.1 The investigators injected dye material with soft-tissue fillers at different aesthetic facial sites on the supraperiosteum, then observed the placement of dye and filler after dissection. In this study, the placement of product was more precise with the cannulas. The filler was injected on the periosteum with a needle. Some of the filler then migrated along the trajectory of the needle path back toward the epidermis, ending up in multiple tissue layers. So there was more extrusion of the filler in the superficial layers with a needle without a retrograde injection technique. Even with the needle tip on the periosteum and no movement of the needle, the needle technique showed a higher risk of intra-arterial injections. This study is limited by the fact that in vivo circumstances could potentially alter the outcome, as could user injection technique.

Dr. Naissan O. Wesley


Cannulas should be highly considered in any deep tissue compartment, but especially in more advanced injection technique areas, such as the nasal dorsum. Another cadaver study from Thailand showed that the anatomy of the dorsal nasal artery is not consistent.2 It is injection into this artery that can lead to blindness via flow to the ophthalmic artery. The study showed that both the diameter of the artery and the presence of a single or bilateral dorsal nasal artery varied. The dorsal nasal artery travels in the subcutaneous tissue layer of the nasal dorsum on the transverse nasalis muscle and its midline nasal aponeurosis, which connects the muscles on both sides. Bilateral dorsal nasal arteries were present in 34% of the specimens. A single and large dorsal nasal artery was present in 28%.

Needles are still useful in some places where precise small aliquot touch-up of filler placement is needed or where it may be difficult to reach with the cannula without making an additional portal of entry. More viscous fillers such as calcium hydroxylapatite and poly-L-lactic acid can be difficult to inject through a cannula and require a needle for injection. More superficially, small 30- or 32-gauge needles are also required for the injection of certain hyaluronic acid fillers in the superficial dermis for more etched lines.
Dr. Lily Talakoub
Dr. Lily Talakoub


The risk of arterial wall perforation and emboli with cannulas is lower, but these complications can still occur. The risk increases with a perpendicular angle between the artery and the cannula, thus slow small aliquot injection technique along with knowledge of anatomy is essential.3 While both needles and cannulas are useful in practice and achieve excellent cosmetic results, cannula use in the deeper compartments among practitioners is encouraged to minimize complications.

References

1. Aesthet Surg J. 2016 Dec 16. pii: sjw220.

2. Aesthetic Plast Surg. 2016 Dec 28. doi: 10.1007/s00266-016-0756-0.

3. Aesthetic Plast Surg. 2016 Dec 23. doi: 10.1007/s00266-016-0725-7.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Wesley practices dermatology in Beverly Hills, Calif. Dr. Talakoub is in private practice in McLean, Va. This month’s column is by Dr. Wesley. Write to them at [email protected]. They had no relevant disclosures.

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With loss of deep fat pad compartments and bony resorption with normal aging, soft tissue fillers have become a mainstay in minimally invasive aesthetic treatments. Preference of injecting with a needle versus a cannula is often user and training dependent. Blunt-tipped cannulas may provide a lower risk of bruising, as well as potentially devastating complications such as intravascular occlusion that can lead to skin necrosis and blindness. Even for advanced injectors, however, cannula use may portend a learning curve if the clinicians are used to injecting with needles.

A recently published observational study using cadaver heads looked at precision in supraperiosteal placement with a sharp needle compared with a blunt tipped cannula.1 The investigators injected dye material with soft-tissue fillers at different aesthetic facial sites on the supraperiosteum, then observed the placement of dye and filler after dissection. In this study, the placement of product was more precise with the cannulas. The filler was injected on the periosteum with a needle. Some of the filler then migrated along the trajectory of the needle path back toward the epidermis, ending up in multiple tissue layers. So there was more extrusion of the filler in the superficial layers with a needle without a retrograde injection technique. Even with the needle tip on the periosteum and no movement of the needle, the needle technique showed a higher risk of intra-arterial injections. This study is limited by the fact that in vivo circumstances could potentially alter the outcome, as could user injection technique.

Dr. Naissan O. Wesley


Cannulas should be highly considered in any deep tissue compartment, but especially in more advanced injection technique areas, such as the nasal dorsum. Another cadaver study from Thailand showed that the anatomy of the dorsal nasal artery is not consistent.2 It is injection into this artery that can lead to blindness via flow to the ophthalmic artery. The study showed that both the diameter of the artery and the presence of a single or bilateral dorsal nasal artery varied. The dorsal nasal artery travels in the subcutaneous tissue layer of the nasal dorsum on the transverse nasalis muscle and its midline nasal aponeurosis, which connects the muscles on both sides. Bilateral dorsal nasal arteries were present in 34% of the specimens. A single and large dorsal nasal artery was present in 28%.

Needles are still useful in some places where precise small aliquot touch-up of filler placement is needed or where it may be difficult to reach with the cannula without making an additional portal of entry. More viscous fillers such as calcium hydroxylapatite and poly-L-lactic acid can be difficult to inject through a cannula and require a needle for injection. More superficially, small 30- or 32-gauge needles are also required for the injection of certain hyaluronic acid fillers in the superficial dermis for more etched lines.
Dr. Lily Talakoub
Dr. Lily Talakoub


The risk of arterial wall perforation and emboli with cannulas is lower, but these complications can still occur. The risk increases with a perpendicular angle between the artery and the cannula, thus slow small aliquot injection technique along with knowledge of anatomy is essential.3 While both needles and cannulas are useful in practice and achieve excellent cosmetic results, cannula use in the deeper compartments among practitioners is encouraged to minimize complications.

References

1. Aesthet Surg J. 2016 Dec 16. pii: sjw220.

2. Aesthetic Plast Surg. 2016 Dec 28. doi: 10.1007/s00266-016-0756-0.

3. Aesthetic Plast Surg. 2016 Dec 23. doi: 10.1007/s00266-016-0725-7.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Wesley practices dermatology in Beverly Hills, Calif. Dr. Talakoub is in private practice in McLean, Va. This month’s column is by Dr. Wesley. Write to them at [email protected]. They had no relevant disclosures.

 

With loss of deep fat pad compartments and bony resorption with normal aging, soft tissue fillers have become a mainstay in minimally invasive aesthetic treatments. Preference of injecting with a needle versus a cannula is often user and training dependent. Blunt-tipped cannulas may provide a lower risk of bruising, as well as potentially devastating complications such as intravascular occlusion that can lead to skin necrosis and blindness. Even for advanced injectors, however, cannula use may portend a learning curve if the clinicians are used to injecting with needles.

A recently published observational study using cadaver heads looked at precision in supraperiosteal placement with a sharp needle compared with a blunt tipped cannula.1 The investigators injected dye material with soft-tissue fillers at different aesthetic facial sites on the supraperiosteum, then observed the placement of dye and filler after dissection. In this study, the placement of product was more precise with the cannulas. The filler was injected on the periosteum with a needle. Some of the filler then migrated along the trajectory of the needle path back toward the epidermis, ending up in multiple tissue layers. So there was more extrusion of the filler in the superficial layers with a needle without a retrograde injection technique. Even with the needle tip on the periosteum and no movement of the needle, the needle technique showed a higher risk of intra-arterial injections. This study is limited by the fact that in vivo circumstances could potentially alter the outcome, as could user injection technique.

Dr. Naissan O. Wesley


Cannulas should be highly considered in any deep tissue compartment, but especially in more advanced injection technique areas, such as the nasal dorsum. Another cadaver study from Thailand showed that the anatomy of the dorsal nasal artery is not consistent.2 It is injection into this artery that can lead to blindness via flow to the ophthalmic artery. The study showed that both the diameter of the artery and the presence of a single or bilateral dorsal nasal artery varied. The dorsal nasal artery travels in the subcutaneous tissue layer of the nasal dorsum on the transverse nasalis muscle and its midline nasal aponeurosis, which connects the muscles on both sides. Bilateral dorsal nasal arteries were present in 34% of the specimens. A single and large dorsal nasal artery was present in 28%.

Needles are still useful in some places where precise small aliquot touch-up of filler placement is needed or where it may be difficult to reach with the cannula without making an additional portal of entry. More viscous fillers such as calcium hydroxylapatite and poly-L-lactic acid can be difficult to inject through a cannula and require a needle for injection. More superficially, small 30- or 32-gauge needles are also required for the injection of certain hyaluronic acid fillers in the superficial dermis for more etched lines.
Dr. Lily Talakoub
Dr. Lily Talakoub


The risk of arterial wall perforation and emboli with cannulas is lower, but these complications can still occur. The risk increases with a perpendicular angle between the artery and the cannula, thus slow small aliquot injection technique along with knowledge of anatomy is essential.3 While both needles and cannulas are useful in practice and achieve excellent cosmetic results, cannula use in the deeper compartments among practitioners is encouraged to minimize complications.

References

1. Aesthet Surg J. 2016 Dec 16. pii: sjw220.

2. Aesthetic Plast Surg. 2016 Dec 28. doi: 10.1007/s00266-016-0756-0.

3. Aesthetic Plast Surg. 2016 Dec 23. doi: 10.1007/s00266-016-0725-7.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Wesley practices dermatology in Beverly Hills, Calif. Dr. Talakoub is in private practice in McLean, Va. This month’s column is by Dr. Wesley. Write to them at [email protected]. They had no relevant disclosures.

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The hidden vascular component to melasma

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Mon, 11/21/2022 - 09:33

 

So lets revisit this topic. We hate melasma. It is recalcitrant, resistant, and often recurs. But how many of us dermatologists look at melasma with a dermatoscope? A minority? And probably even fewer of us biopsy melasma. Are we missing the many, many cases of vascular or erythematotelangiectatic melasma and just treating melasma as a pigment problem instead of treating it as a vascular problem?

We know that melasma develops because of increased melanin production, not an increased number of melanocytes, but the underlying cause of increased melanogenesis is not fully understood. Several recent studies suggest that the increased vascularity in melasma skin is the underlying etiology. Understanding the way endogeneous and exogeneous stimuli such as sex hormones, oral contraceptives, ultraviolet irradiation, and visible light stimulate inflammation in the dermis, leading to the release of various mediators that stimulate angiogenesis and the activation of melanocytes, will help us improve the treatment of this relentless disease.

Dr. Lily Talakoub
Dr. Lily Talakoub
It’s clear that UV exposure and visible light are the predominant triggers in the development of melasma. Recent studies looking at biopsies of lesional skin in melasma patients show similarity to solar-damaged skin. Solar elastosis has been shown to be secondary to the synthesis of alpha-melanocyte stimulating hormone (alpha-MSH) and adrenocorticotropic hormone (ACTH) derived from pro-opiomelanocortin (POMC) in keratinocytes. These peptides lead to proliferation of melanocytes, as well as increase in melanin synthesis via stimulation of tyrosinase activity and tyrosinase-related protein 1 (TRP-1).

Similarly, elevated estrogen and progesterone in pregnancy or with oral contraceptive use is known to stimulate melasma. Melanocytes express estrogen receptors and estradiol increases the level of TRP-2, which stimulates melanocytes to produce melanin. Recent literature has shown that the number of blood vessels, vessel size, and vessel density also are greater in lesional melasma skin than in perilesional skin. In addition, immunohistochemical staining has shown an increased level of factor VIIIa-related antigen in blood vessels in melasma skin, compared with perilesional normal skin.

Courtesy Lily Talakoub, MD
This image shows the vascular component in melasma.
Elevated vascular endothelial growth factor (VEGF) in keratinocytes also has been hypothesized to play a role in the elevated vascularization of melasma. Biopsies from affected skin also reveal increases in mast cells that release mediators – including histamine, VEGF, tumor necrosis factor-alpha, and interleukin-8 – which promote vascular proliferation. The evidence now points to these stimuli triggering angiogenesis, leading to release of mediators that cause melanocyte activation and melanin production.

Unfortunately, the treatment of vascular melasma is very difficult. Lasers such as the pulsed dye laser that help skin vascularity can trigger worsening melanogenesis through dermal inflammation. The melanin cap overlying the melanocyte nucleus also can mask the underlying vascularity and make laser treatments more difficult. The isolated treatment of epidermal pigment also may be ineffective and transient.

By targeting the vessels in addition to the pigment, we will get improved clinical results and fewer relapses. We suggest that melasma be treated conservatively, not aggressively. It should be treated as an inflammatory process. Patients with melasma also have a slightly abnormal skin barrier, so we should be hesitant in using deep lasers, radio frequency, and aggressive chemical peels. Topical preparations – particularly triple-combination bleaching agents, retinoids, and nonhydroquinone skin lighteners – should be used sparingly and always in combination with treatments targeting skin vascularity.
 

References

J Dermatol Sci. 2007 May;46(2):111-6.

Exp Dermatol. 2005 Aug;14(8):625-33.

Clin Exp Dermatol. 2008;33(3):305-8.

J Eur Acad Dermatol Venereol. 2009 Nov;23(11):1254-62.

Ann Dermatol. 2010 Nov;22(4):373-8.

J Eur Acad Dermatol Venereol. 2013 Jan;27 Suppl 1:5-6.

Am J Clin Dermatol. 2013 Oct;14(5):359-76.

J Am Acad Dermatol. 2014 Feb;70(2):369-73.

Dr. Talakoub and Dr. Wesley and are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

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So lets revisit this topic. We hate melasma. It is recalcitrant, resistant, and often recurs. But how many of us dermatologists look at melasma with a dermatoscope? A minority? And probably even fewer of us biopsy melasma. Are we missing the many, many cases of vascular or erythematotelangiectatic melasma and just treating melasma as a pigment problem instead of treating it as a vascular problem?

We know that melasma develops because of increased melanin production, not an increased number of melanocytes, but the underlying cause of increased melanogenesis is not fully understood. Several recent studies suggest that the increased vascularity in melasma skin is the underlying etiology. Understanding the way endogeneous and exogeneous stimuli such as sex hormones, oral contraceptives, ultraviolet irradiation, and visible light stimulate inflammation in the dermis, leading to the release of various mediators that stimulate angiogenesis and the activation of melanocytes, will help us improve the treatment of this relentless disease.

Dr. Lily Talakoub
Dr. Lily Talakoub
It’s clear that UV exposure and visible light are the predominant triggers in the development of melasma. Recent studies looking at biopsies of lesional skin in melasma patients show similarity to solar-damaged skin. Solar elastosis has been shown to be secondary to the synthesis of alpha-melanocyte stimulating hormone (alpha-MSH) and adrenocorticotropic hormone (ACTH) derived from pro-opiomelanocortin (POMC) in keratinocytes. These peptides lead to proliferation of melanocytes, as well as increase in melanin synthesis via stimulation of tyrosinase activity and tyrosinase-related protein 1 (TRP-1).

Similarly, elevated estrogen and progesterone in pregnancy or with oral contraceptive use is known to stimulate melasma. Melanocytes express estrogen receptors and estradiol increases the level of TRP-2, which stimulates melanocytes to produce melanin. Recent literature has shown that the number of blood vessels, vessel size, and vessel density also are greater in lesional melasma skin than in perilesional skin. In addition, immunohistochemical staining has shown an increased level of factor VIIIa-related antigen in blood vessels in melasma skin, compared with perilesional normal skin.

Courtesy Lily Talakoub, MD
This image shows the vascular component in melasma.
Elevated vascular endothelial growth factor (VEGF) in keratinocytes also has been hypothesized to play a role in the elevated vascularization of melasma. Biopsies from affected skin also reveal increases in mast cells that release mediators – including histamine, VEGF, tumor necrosis factor-alpha, and interleukin-8 – which promote vascular proliferation. The evidence now points to these stimuli triggering angiogenesis, leading to release of mediators that cause melanocyte activation and melanin production.

Unfortunately, the treatment of vascular melasma is very difficult. Lasers such as the pulsed dye laser that help skin vascularity can trigger worsening melanogenesis through dermal inflammation. The melanin cap overlying the melanocyte nucleus also can mask the underlying vascularity and make laser treatments more difficult. The isolated treatment of epidermal pigment also may be ineffective and transient.

By targeting the vessels in addition to the pigment, we will get improved clinical results and fewer relapses. We suggest that melasma be treated conservatively, not aggressively. It should be treated as an inflammatory process. Patients with melasma also have a slightly abnormal skin barrier, so we should be hesitant in using deep lasers, radio frequency, and aggressive chemical peels. Topical preparations – particularly triple-combination bleaching agents, retinoids, and nonhydroquinone skin lighteners – should be used sparingly and always in combination with treatments targeting skin vascularity.
 

References

J Dermatol Sci. 2007 May;46(2):111-6.

Exp Dermatol. 2005 Aug;14(8):625-33.

Clin Exp Dermatol. 2008;33(3):305-8.

J Eur Acad Dermatol Venereol. 2009 Nov;23(11):1254-62.

Ann Dermatol. 2010 Nov;22(4):373-8.

J Eur Acad Dermatol Venereol. 2013 Jan;27 Suppl 1:5-6.

Am J Clin Dermatol. 2013 Oct;14(5):359-76.

J Am Acad Dermatol. 2014 Feb;70(2):369-73.

Dr. Talakoub and Dr. Wesley and are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

 

So lets revisit this topic. We hate melasma. It is recalcitrant, resistant, and often recurs. But how many of us dermatologists look at melasma with a dermatoscope? A minority? And probably even fewer of us biopsy melasma. Are we missing the many, many cases of vascular or erythematotelangiectatic melasma and just treating melasma as a pigment problem instead of treating it as a vascular problem?

We know that melasma develops because of increased melanin production, not an increased number of melanocytes, but the underlying cause of increased melanogenesis is not fully understood. Several recent studies suggest that the increased vascularity in melasma skin is the underlying etiology. Understanding the way endogeneous and exogeneous stimuli such as sex hormones, oral contraceptives, ultraviolet irradiation, and visible light stimulate inflammation in the dermis, leading to the release of various mediators that stimulate angiogenesis and the activation of melanocytes, will help us improve the treatment of this relentless disease.

Dr. Lily Talakoub
Dr. Lily Talakoub
It’s clear that UV exposure and visible light are the predominant triggers in the development of melasma. Recent studies looking at biopsies of lesional skin in melasma patients show similarity to solar-damaged skin. Solar elastosis has been shown to be secondary to the synthesis of alpha-melanocyte stimulating hormone (alpha-MSH) and adrenocorticotropic hormone (ACTH) derived from pro-opiomelanocortin (POMC) in keratinocytes. These peptides lead to proliferation of melanocytes, as well as increase in melanin synthesis via stimulation of tyrosinase activity and tyrosinase-related protein 1 (TRP-1).

Similarly, elevated estrogen and progesterone in pregnancy or with oral contraceptive use is known to stimulate melasma. Melanocytes express estrogen receptors and estradiol increases the level of TRP-2, which stimulates melanocytes to produce melanin. Recent literature has shown that the number of blood vessels, vessel size, and vessel density also are greater in lesional melasma skin than in perilesional skin. In addition, immunohistochemical staining has shown an increased level of factor VIIIa-related antigen in blood vessels in melasma skin, compared with perilesional normal skin.

Courtesy Lily Talakoub, MD
This image shows the vascular component in melasma.
Elevated vascular endothelial growth factor (VEGF) in keratinocytes also has been hypothesized to play a role in the elevated vascularization of melasma. Biopsies from affected skin also reveal increases in mast cells that release mediators – including histamine, VEGF, tumor necrosis factor-alpha, and interleukin-8 – which promote vascular proliferation. The evidence now points to these stimuli triggering angiogenesis, leading to release of mediators that cause melanocyte activation and melanin production.

Unfortunately, the treatment of vascular melasma is very difficult. Lasers such as the pulsed dye laser that help skin vascularity can trigger worsening melanogenesis through dermal inflammation. The melanin cap overlying the melanocyte nucleus also can mask the underlying vascularity and make laser treatments more difficult. The isolated treatment of epidermal pigment also may be ineffective and transient.

By targeting the vessels in addition to the pigment, we will get improved clinical results and fewer relapses. We suggest that melasma be treated conservatively, not aggressively. It should be treated as an inflammatory process. Patients with melasma also have a slightly abnormal skin barrier, so we should be hesitant in using deep lasers, radio frequency, and aggressive chemical peels. Topical preparations – particularly triple-combination bleaching agents, retinoids, and nonhydroquinone skin lighteners – should be used sparingly and always in combination with treatments targeting skin vascularity.
 

References

J Dermatol Sci. 2007 May;46(2):111-6.

Exp Dermatol. 2005 Aug;14(8):625-33.

Clin Exp Dermatol. 2008;33(3):305-8.

J Eur Acad Dermatol Venereol. 2009 Nov;23(11):1254-62.

Ann Dermatol. 2010 Nov;22(4):373-8.

J Eur Acad Dermatol Venereol. 2013 Jan;27 Suppl 1:5-6.

Am J Clin Dermatol. 2013 Oct;14(5):359-76.

J Am Acad Dermatol. 2014 Feb;70(2):369-73.

Dr. Talakoub and Dr. Wesley and are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

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Highlights from the ASDS Annual Conference 2016

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Fri, 06/11/2021 - 10:19

At this year’s American Society for Dermatologic Surgery (ASDS) annual meeting, many of the hot topics pertained to tightening and smoothness of the skin. More naturally derived skin care products were discussed, as well as skin-tightening devices, techniques for improving fat, microneedling, devices for improving cellulite, and some of the newer injectable fillers on the market.

Of all of these, the use of microneedling with and without radiofrequency energy to improve acne scars, rhytids, and pore size was the most prominent emerging trend. Microneedling devices with radiofrequency also are being used for skin tightening, in addition to improving skin texture.

Dr. Naissan O. Wesley
While liposuction for submental fat was the main treatment option in the past, two newer, less invasive options have dramatically changed the way we can address submental fat, the upper neck, and jawline appearance. Coolsculpting with the CoolMini handpiece and deoxycholic acid (Kybella) are these newer options for improving submental fat that were also hot topics at the meeting.

There were also presentations on improvements in acne scars with a number of techniques, including fractional ablative and nonablative lasers, subcision, microneedling, and fillers.

Controversies addressed at the meeting included whether or not dermatologists should use the same lasers with different Food and Drug Administration–approved hand pieces for vaginal rejuvenation. In addition, controversies over whether Mohs surgeons should undergo board examination were discussed.

Dr. Lily Talakoub
Dr. Lily Talakoub
Reconstructive conundrums in Mohs surgery, chemical peeling, melasma, scars, coding tips for dermatologic surgery, practice management, and social media also were addressed during the meeting. As always, the Iron Surgeon competition and gala were highlights. Thomas Rohrer, MD, of Chestnut Hill, Mass., was inducted as ASDS president and Jean Carruthers, MD, of Vancouver was honored with the Samuel J. Stegman Award for Distinguished Service for her career work in advancing aesthetic and surgical dermatology. The meeting highlighted how lucky our specialty is to have more and more methods for addressing aesthetic concerns.


Dr. Talakoub and Dr. Wesley are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Wesley. Write to them at [email protected].

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At this year’s American Society for Dermatologic Surgery (ASDS) annual meeting, many of the hot topics pertained to tightening and smoothness of the skin. More naturally derived skin care products were discussed, as well as skin-tightening devices, techniques for improving fat, microneedling, devices for improving cellulite, and some of the newer injectable fillers on the market.

Of all of these, the use of microneedling with and without radiofrequency energy to improve acne scars, rhytids, and pore size was the most prominent emerging trend. Microneedling devices with radiofrequency also are being used for skin tightening, in addition to improving skin texture.

Dr. Naissan O. Wesley
While liposuction for submental fat was the main treatment option in the past, two newer, less invasive options have dramatically changed the way we can address submental fat, the upper neck, and jawline appearance. Coolsculpting with the CoolMini handpiece and deoxycholic acid (Kybella) are these newer options for improving submental fat that were also hot topics at the meeting.

There were also presentations on improvements in acne scars with a number of techniques, including fractional ablative and nonablative lasers, subcision, microneedling, and fillers.

Controversies addressed at the meeting included whether or not dermatologists should use the same lasers with different Food and Drug Administration–approved hand pieces for vaginal rejuvenation. In addition, controversies over whether Mohs surgeons should undergo board examination were discussed.

Dr. Lily Talakoub
Dr. Lily Talakoub
Reconstructive conundrums in Mohs surgery, chemical peeling, melasma, scars, coding tips for dermatologic surgery, practice management, and social media also were addressed during the meeting. As always, the Iron Surgeon competition and gala were highlights. Thomas Rohrer, MD, of Chestnut Hill, Mass., was inducted as ASDS president and Jean Carruthers, MD, of Vancouver was honored with the Samuel J. Stegman Award for Distinguished Service for her career work in advancing aesthetic and surgical dermatology. The meeting highlighted how lucky our specialty is to have more and more methods for addressing aesthetic concerns.


Dr. Talakoub and Dr. Wesley are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Wesley. Write to them at [email protected].

At this year’s American Society for Dermatologic Surgery (ASDS) annual meeting, many of the hot topics pertained to tightening and smoothness of the skin. More naturally derived skin care products were discussed, as well as skin-tightening devices, techniques for improving fat, microneedling, devices for improving cellulite, and some of the newer injectable fillers on the market.

Of all of these, the use of microneedling with and without radiofrequency energy to improve acne scars, rhytids, and pore size was the most prominent emerging trend. Microneedling devices with radiofrequency also are being used for skin tightening, in addition to improving skin texture.

Dr. Naissan O. Wesley
While liposuction for submental fat was the main treatment option in the past, two newer, less invasive options have dramatically changed the way we can address submental fat, the upper neck, and jawline appearance. Coolsculpting with the CoolMini handpiece and deoxycholic acid (Kybella) are these newer options for improving submental fat that were also hot topics at the meeting.

There were also presentations on improvements in acne scars with a number of techniques, including fractional ablative and nonablative lasers, subcision, microneedling, and fillers.

Controversies addressed at the meeting included whether or not dermatologists should use the same lasers with different Food and Drug Administration–approved hand pieces for vaginal rejuvenation. In addition, controversies over whether Mohs surgeons should undergo board examination were discussed.

Dr. Lily Talakoub
Dr. Lily Talakoub
Reconstructive conundrums in Mohs surgery, chemical peeling, melasma, scars, coding tips for dermatologic surgery, practice management, and social media also were addressed during the meeting. As always, the Iron Surgeon competition and gala were highlights. Thomas Rohrer, MD, of Chestnut Hill, Mass., was inducted as ASDS president and Jean Carruthers, MD, of Vancouver was honored with the Samuel J. Stegman Award for Distinguished Service for her career work in advancing aesthetic and surgical dermatology. The meeting highlighted how lucky our specialty is to have more and more methods for addressing aesthetic concerns.


Dr. Talakoub and Dr. Wesley are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Wesley. Write to them at [email protected].

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Postinflammatory erythema

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The troubling, frustrating part of acne: the persistent acne scars that are often a prolonged battle for most of our patients. We have many techniques to deal with postinflammatory hyperpigmentation (PIH). However, postinflammatory erythema (PIE), the erythematous scars often seen in acne and other inflammatory skin conditions, is not well understood. And despite its pervasive nature, very little data exist that identify its etiology and effective treatment options.

Inflammatory acne scars are not all the same. PIH, often seen with Fitzpatrick skin types III-VI, is related to brown spots, not red spots. Hyperpigmentation is caused by an excess production of melanin. There are treatments for PIH in our armamentarium – such as microdermabrasion, chemical peels, hydroquinone, and vitamin C – that inhibit melanogenesis and blend the skin discoloration.

Dr. Lily Talakoub
Dr. Lily Talakoub


In contrast, PIE is characterized by pink, red, and sometimes purple-appearing vascular neogenesis seen most often with skin types I-III after an inflammatory skin condition resolves, and is often seen in cystic acne.

The term postinflammatory erythema was initially introduced in the dermatology literature in 2013 by Bae-Harboe et al. to describe erythema often seen after the resolution of inflammatory acne or other inflammatory skin conditions.1 It is not to be confused with the erythema and telangiectasias seen in erythematotelangiectatic rosacea, which is a separate entity.

Dr. Naissan O. Wesley
Anecdotal studies have shown that pulsed dye and Nd:YAG lasers, which target hemoglobin through the process of selective photothermolysis, are effective at decreasing the vascular prominence in PIE. In clinical practice, a combination of pulsed dye lasers, KTP laser, intense pulsed-light, and Nd:YAG lasers has been effective in reducing both the superficial and deep vascular prominence seen with PIE.2

In my practice, microneedling has also been effective in reducing PIE. Although this may seem counterintuitive because of the bleeding associated with the microneedling process, microneedling-induced skin tissue injury and neocollagenesis have been clinically shown to improve the abnormal vascular proliferation that occurs in PIE. Similar techniques can be used with fractional resurfacing lasers. However, no studies have specifically evaluated the erythematous component of acne scars treated with fractionated lasers.

Topical preparations containing brimonidine (Mirvaso), azelaic acid, and green tea, as well as oral nicotinamide, can have a temporary effect on reducing skin erythema.

However, very little data or clinical studies are available on treatments for PIE, and there are no well-studied preparations with long-term efficacy data. Studies are needed to provide better clinical guidelines for treatment methods and alternatives to treatments, including topical and systemic medications.

References

1. J Clin Aesthet Dermatol. 2013 Sep;6(9):46-7.

2. J Am Acad Dermatol. 2009 May;60(5):801-7.
 

Dr. Talakoub and Dr. Wesley are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

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The troubling, frustrating part of acne: the persistent acne scars that are often a prolonged battle for most of our patients. We have many techniques to deal with postinflammatory hyperpigmentation (PIH). However, postinflammatory erythema (PIE), the erythematous scars often seen in acne and other inflammatory skin conditions, is not well understood. And despite its pervasive nature, very little data exist that identify its etiology and effective treatment options.

Inflammatory acne scars are not all the same. PIH, often seen with Fitzpatrick skin types III-VI, is related to brown spots, not red spots. Hyperpigmentation is caused by an excess production of melanin. There are treatments for PIH in our armamentarium – such as microdermabrasion, chemical peels, hydroquinone, and vitamin C – that inhibit melanogenesis and blend the skin discoloration.

Dr. Lily Talakoub
Dr. Lily Talakoub


In contrast, PIE is characterized by pink, red, and sometimes purple-appearing vascular neogenesis seen most often with skin types I-III after an inflammatory skin condition resolves, and is often seen in cystic acne.

The term postinflammatory erythema was initially introduced in the dermatology literature in 2013 by Bae-Harboe et al. to describe erythema often seen after the resolution of inflammatory acne or other inflammatory skin conditions.1 It is not to be confused with the erythema and telangiectasias seen in erythematotelangiectatic rosacea, which is a separate entity.

Dr. Naissan O. Wesley
Anecdotal studies have shown that pulsed dye and Nd:YAG lasers, which target hemoglobin through the process of selective photothermolysis, are effective at decreasing the vascular prominence in PIE. In clinical practice, a combination of pulsed dye lasers, KTP laser, intense pulsed-light, and Nd:YAG lasers has been effective in reducing both the superficial and deep vascular prominence seen with PIE.2

In my practice, microneedling has also been effective in reducing PIE. Although this may seem counterintuitive because of the bleeding associated with the microneedling process, microneedling-induced skin tissue injury and neocollagenesis have been clinically shown to improve the abnormal vascular proliferation that occurs in PIE. Similar techniques can be used with fractional resurfacing lasers. However, no studies have specifically evaluated the erythematous component of acne scars treated with fractionated lasers.

Topical preparations containing brimonidine (Mirvaso), azelaic acid, and green tea, as well as oral nicotinamide, can have a temporary effect on reducing skin erythema.

However, very little data or clinical studies are available on treatments for PIE, and there are no well-studied preparations with long-term efficacy data. Studies are needed to provide better clinical guidelines for treatment methods and alternatives to treatments, including topical and systemic medications.

References

1. J Clin Aesthet Dermatol. 2013 Sep;6(9):46-7.

2. J Am Acad Dermatol. 2009 May;60(5):801-7.
 

Dr. Talakoub and Dr. Wesley are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

 

The troubling, frustrating part of acne: the persistent acne scars that are often a prolonged battle for most of our patients. We have many techniques to deal with postinflammatory hyperpigmentation (PIH). However, postinflammatory erythema (PIE), the erythematous scars often seen in acne and other inflammatory skin conditions, is not well understood. And despite its pervasive nature, very little data exist that identify its etiology and effective treatment options.

Inflammatory acne scars are not all the same. PIH, often seen with Fitzpatrick skin types III-VI, is related to brown spots, not red spots. Hyperpigmentation is caused by an excess production of melanin. There are treatments for PIH in our armamentarium – such as microdermabrasion, chemical peels, hydroquinone, and vitamin C – that inhibit melanogenesis and blend the skin discoloration.

Dr. Lily Talakoub
Dr. Lily Talakoub


In contrast, PIE is characterized by pink, red, and sometimes purple-appearing vascular neogenesis seen most often with skin types I-III after an inflammatory skin condition resolves, and is often seen in cystic acne.

The term postinflammatory erythema was initially introduced in the dermatology literature in 2013 by Bae-Harboe et al. to describe erythema often seen after the resolution of inflammatory acne or other inflammatory skin conditions.1 It is not to be confused with the erythema and telangiectasias seen in erythematotelangiectatic rosacea, which is a separate entity.

Dr. Naissan O. Wesley
Anecdotal studies have shown that pulsed dye and Nd:YAG lasers, which target hemoglobin through the process of selective photothermolysis, are effective at decreasing the vascular prominence in PIE. In clinical practice, a combination of pulsed dye lasers, KTP laser, intense pulsed-light, and Nd:YAG lasers has been effective in reducing both the superficial and deep vascular prominence seen with PIE.2

In my practice, microneedling has also been effective in reducing PIE. Although this may seem counterintuitive because of the bleeding associated with the microneedling process, microneedling-induced skin tissue injury and neocollagenesis have been clinically shown to improve the abnormal vascular proliferation that occurs in PIE. Similar techniques can be used with fractional resurfacing lasers. However, no studies have specifically evaluated the erythematous component of acne scars treated with fractionated lasers.

Topical preparations containing brimonidine (Mirvaso), azelaic acid, and green tea, as well as oral nicotinamide, can have a temporary effect on reducing skin erythema.

However, very little data or clinical studies are available on treatments for PIE, and there are no well-studied preparations with long-term efficacy data. Studies are needed to provide better clinical guidelines for treatment methods and alternatives to treatments, including topical and systemic medications.

References

1. J Clin Aesthet Dermatol. 2013 Sep;6(9):46-7.

2. J Am Acad Dermatol. 2009 May;60(5):801-7.
 

Dr. Talakoub and Dr. Wesley are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

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Aesthetic dermatology: What do we know so far about Volbella?

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Aesthetic dermatology: What do we know so far about Volbella?

On May 31, 2016, the Food and Drug Administration approved Juvéderm Volbella XC for use in the lips for lip augmentation and for correction of perioral rhytids, in adults over the age of 21. In the U.S. pivotal clinical trial of 168 patients, Juvederm Volbella XC was found to increase lip fullness and soften the appearance of perioral rhytids in two-thirds through 1 year.

Like its previously approved predecessor Juvéderm Voluma XC, approved for the mid-face/cheek area, Juvéderm Volbella XC is composed of hyaluronic acid (HA) using Vycross technology. Vycross technology blends different molecular weights of hyaluronic acid together, allowing for longer duration of the product. Unlike Juvéderm Voluma XC (20 mg/mL), Juvéderm Volbella XC is a lower-concentration HA (15 mg/mL) and has a lower G prime and cohesivity, allowing more horizontal spread as opposed to a lift, which makes it more appropriate for injection into the lips and superficial perioral lines.1

Dr. Naissan O. Wesley

Juvéderm Volbella XC will not be available for use in the United States until October 2016. However, the product was first approved in Europe in 2011, and subsequently in Latin America, the Middle East, Asia Pacific, and Canada. What has been the experience of our neighboring colleagues?

In a randomized, prospective, 12-month controlled European study of 280 patients comparing Volbella to a nonanimal stabilized hyaluronic acid (NASHA), Volbella was found to be noninferior to NASHA at 3 months.2 Improvements in lip fullness, perioral lines, and oral commissures for Volbella were statistically significant at 6 and 12 months. Acute swelling was also noted to be less.

In a German 62-patient study with primary endpoints of satisfaction with improvement and look and feel of the lips, a high degree of subject satisfaction with aesthetic improvement in the lips, as well as with their natural look and feel, was noted among 83.6% and 75%-93%, respectively.3

In a retrospective chart review of 400 patients in Israel, where Volbella was injected into tear troughs (disclaimer: not approved for tear troughs in the United States) and/or lips, 17 patients (4.25%) developed prolonged inflammatory cutaneous reactions, lasting up to 11 months, which recurred (with an average number of 3.17 episodes) and occurred late (with an average onset of 8.41 weeks after the injection).4 The reactions were treated with antibiotics and hyaluronidase injections. The finding in this published report is higher than the 0.02% of delayed-onset inflammatory reaction previously reported with HA fillers.

Dr. Lily Talakoub

With a full armamentarium of HA and non-HA fillers on the market, we are lucky to have many options to select from to treat aesthetic concerns of patients. For lip and perioral enhancement in the United States, Restylane, Juvéderm, Belotero, and now Volbella are all excellent options. As the dermal filler portfolio available internationally is larger than that in the United States, much can be learned from the experience of our international colleagues.

References

1. Plast Reconstr Surg. 2015 Nov;136(5 Suppl):139S-48S.

2. J Drugs Dermatol. 2015 Dec;14(12):1444-52.

3. J Cosmet Dermatol. 2014 Jun;13(2):125-34.

4. Dermatol Surg. 2016 Jan;42(1):31-7.

Dr. Wesley and Dr. Talakoub are cocontributors to this column. Dr. Wesley practices dermatology in Beverly Hills, Calif. Dr. Talakoub is in private practice in McLean, Va. This month’s column is by Dr. Wesley. Write to them at [email protected]. Dr. Wesley has no disclosures with regard to Volbella; she participated in clinical trials for Juvéderm Voluma. Dr. Talakoub is a national trainer for Juvéderm manufacturer Allergan for all its injectables.

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On May 31, 2016, the Food and Drug Administration approved Juvéderm Volbella XC for use in the lips for lip augmentation and for correction of perioral rhytids, in adults over the age of 21. In the U.S. pivotal clinical trial of 168 patients, Juvederm Volbella XC was found to increase lip fullness and soften the appearance of perioral rhytids in two-thirds through 1 year.

Like its previously approved predecessor Juvéderm Voluma XC, approved for the mid-face/cheek area, Juvéderm Volbella XC is composed of hyaluronic acid (HA) using Vycross technology. Vycross technology blends different molecular weights of hyaluronic acid together, allowing for longer duration of the product. Unlike Juvéderm Voluma XC (20 mg/mL), Juvéderm Volbella XC is a lower-concentration HA (15 mg/mL) and has a lower G prime and cohesivity, allowing more horizontal spread as opposed to a lift, which makes it more appropriate for injection into the lips and superficial perioral lines.1

Dr. Naissan O. Wesley

Juvéderm Volbella XC will not be available for use in the United States until October 2016. However, the product was first approved in Europe in 2011, and subsequently in Latin America, the Middle East, Asia Pacific, and Canada. What has been the experience of our neighboring colleagues?

In a randomized, prospective, 12-month controlled European study of 280 patients comparing Volbella to a nonanimal stabilized hyaluronic acid (NASHA), Volbella was found to be noninferior to NASHA at 3 months.2 Improvements in lip fullness, perioral lines, and oral commissures for Volbella were statistically significant at 6 and 12 months. Acute swelling was also noted to be less.

In a German 62-patient study with primary endpoints of satisfaction with improvement and look and feel of the lips, a high degree of subject satisfaction with aesthetic improvement in the lips, as well as with their natural look and feel, was noted among 83.6% and 75%-93%, respectively.3

In a retrospective chart review of 400 patients in Israel, where Volbella was injected into tear troughs (disclaimer: not approved for tear troughs in the United States) and/or lips, 17 patients (4.25%) developed prolonged inflammatory cutaneous reactions, lasting up to 11 months, which recurred (with an average number of 3.17 episodes) and occurred late (with an average onset of 8.41 weeks after the injection).4 The reactions were treated with antibiotics and hyaluronidase injections. The finding in this published report is higher than the 0.02% of delayed-onset inflammatory reaction previously reported with HA fillers.

Dr. Lily Talakoub

With a full armamentarium of HA and non-HA fillers on the market, we are lucky to have many options to select from to treat aesthetic concerns of patients. For lip and perioral enhancement in the United States, Restylane, Juvéderm, Belotero, and now Volbella are all excellent options. As the dermal filler portfolio available internationally is larger than that in the United States, much can be learned from the experience of our international colleagues.

References

1. Plast Reconstr Surg. 2015 Nov;136(5 Suppl):139S-48S.

2. J Drugs Dermatol. 2015 Dec;14(12):1444-52.

3. J Cosmet Dermatol. 2014 Jun;13(2):125-34.

4. Dermatol Surg. 2016 Jan;42(1):31-7.

Dr. Wesley and Dr. Talakoub are cocontributors to this column. Dr. Wesley practices dermatology in Beverly Hills, Calif. Dr. Talakoub is in private practice in McLean, Va. This month’s column is by Dr. Wesley. Write to them at [email protected]. Dr. Wesley has no disclosures with regard to Volbella; she participated in clinical trials for Juvéderm Voluma. Dr. Talakoub is a national trainer for Juvéderm manufacturer Allergan for all its injectables.

On May 31, 2016, the Food and Drug Administration approved Juvéderm Volbella XC for use in the lips for lip augmentation and for correction of perioral rhytids, in adults over the age of 21. In the U.S. pivotal clinical trial of 168 patients, Juvederm Volbella XC was found to increase lip fullness and soften the appearance of perioral rhytids in two-thirds through 1 year.

Like its previously approved predecessor Juvéderm Voluma XC, approved for the mid-face/cheek area, Juvéderm Volbella XC is composed of hyaluronic acid (HA) using Vycross technology. Vycross technology blends different molecular weights of hyaluronic acid together, allowing for longer duration of the product. Unlike Juvéderm Voluma XC (20 mg/mL), Juvéderm Volbella XC is a lower-concentration HA (15 mg/mL) and has a lower G prime and cohesivity, allowing more horizontal spread as opposed to a lift, which makes it more appropriate for injection into the lips and superficial perioral lines.1

Dr. Naissan O. Wesley

Juvéderm Volbella XC will not be available for use in the United States until October 2016. However, the product was first approved in Europe in 2011, and subsequently in Latin America, the Middle East, Asia Pacific, and Canada. What has been the experience of our neighboring colleagues?

In a randomized, prospective, 12-month controlled European study of 280 patients comparing Volbella to a nonanimal stabilized hyaluronic acid (NASHA), Volbella was found to be noninferior to NASHA at 3 months.2 Improvements in lip fullness, perioral lines, and oral commissures for Volbella were statistically significant at 6 and 12 months. Acute swelling was also noted to be less.

In a German 62-patient study with primary endpoints of satisfaction with improvement and look and feel of the lips, a high degree of subject satisfaction with aesthetic improvement in the lips, as well as with their natural look and feel, was noted among 83.6% and 75%-93%, respectively.3

In a retrospective chart review of 400 patients in Israel, where Volbella was injected into tear troughs (disclaimer: not approved for tear troughs in the United States) and/or lips, 17 patients (4.25%) developed prolonged inflammatory cutaneous reactions, lasting up to 11 months, which recurred (with an average number of 3.17 episodes) and occurred late (with an average onset of 8.41 weeks after the injection).4 The reactions were treated with antibiotics and hyaluronidase injections. The finding in this published report is higher than the 0.02% of delayed-onset inflammatory reaction previously reported with HA fillers.

Dr. Lily Talakoub

With a full armamentarium of HA and non-HA fillers on the market, we are lucky to have many options to select from to treat aesthetic concerns of patients. For lip and perioral enhancement in the United States, Restylane, Juvéderm, Belotero, and now Volbella are all excellent options. As the dermal filler portfolio available internationally is larger than that in the United States, much can be learned from the experience of our international colleagues.

References

1. Plast Reconstr Surg. 2015 Nov;136(5 Suppl):139S-48S.

2. J Drugs Dermatol. 2015 Dec;14(12):1444-52.

3. J Cosmet Dermatol. 2014 Jun;13(2):125-34.

4. Dermatol Surg. 2016 Jan;42(1):31-7.

Dr. Wesley and Dr. Talakoub are cocontributors to this column. Dr. Wesley practices dermatology in Beverly Hills, Calif. Dr. Talakoub is in private practice in McLean, Va. This month’s column is by Dr. Wesley. Write to them at [email protected]. Dr. Wesley has no disclosures with regard to Volbella; she participated in clinical trials for Juvéderm Voluma. Dr. Talakoub is a national trainer for Juvéderm manufacturer Allergan for all its injectables.

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Color correcting – for skin blemishes

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Color correcting – for skin blemishes

One of the most frustrating problems we encounter is helping patients with skin issues that we cannot immediately fix or cure. Teaching them the art of concealing skin blemishes gives patients a sense of relief. Color correction is an art and requires an understanding of basic color theory and Fitzpatrick skin type.

On the color wheel, each color sits directly across from another color, making them complementary colors.

Thoth_Adan (thinkstockimages)

If we look at red, the color opposing it is green. When red and green are combined, they neutralize each other. One of the greatest dermatologists of all time and my mentor, Timothy Berger, MD, taught me that in dermatology color “hue” is a clue to understanding morphology. Everything that is red cannot just be called “erythematous.” There is orange/red (pityriasis rosea, tinea versicolor, seborrheic dermatitis), deep red (cellulitis, Sweet’s syndrome, acne scars, rosacea, psoriasis), purple/red (vasculitis, lichen planus (LP), veins, under-eye circles), brown/red (pigmented purpura, pigmented acne scars, sarcoid).

The combination of the underlying pathology, morphology, and Fitzpatrick type is both a clue to diagnosis and a pallet for skin concealers. We can use the following techniques to help patients color correct skin imperfections:

Dr. Lily Talakoub

Red: rosacea, acne scars, acne

Green-based concealers and primers are the best option to significantly reduce the redness. While green primers and correctors tend to be great for Fitzpatrick skin types I-III, a yellow-based concealer/corrector can help to cover redness on those with skin types IV-VI.

Blue: periorbital veins

If you are dealing with blue-toned skin lesions, such as periorbital veins, the ideal corrector is one with a peach or orange undertones. For skin types I-III, a peach/salmon corrector works best, whereas skin types IV-VI requires an orange-toned corrector.

Purple: under-eye circles, LP, postprocedure bruising

If under-eye circles tend to have a more purple hue to them, a yellow-based corrector works best for skin types I-III. For skin types IV-VI skin types, you will need a corrector with a red undertone.

Yellow: bruising

Purple/lavender correctors are best suited for eliminating yellow tones from the face. Purple also combats sallow undertones of the skin.

Brown: lentigines, melasma, seborrheic keratosis, post-inflammatory hyperpigmentation, nevi, café au lait spots

Dr. Naissan O. Wesley

Brown is actually the hardest of all colors to correct. The deeper the pigment (ashy dermatitis, melasma) the more gray the areas appear with skin concealers. The more superficial the pigment (ephelides, lentigines), the easier it is to correct. Generally speaking, peach toned concealers work best, not beige or brown. The corrector, however, should be lighter than the skin tone or the lesion itself will appear darker.

Helping patients conceal imperfections with these simple guidelines is a great way to help relieve some anxiety and help our patients fell more confident in their skin.

Dr. Talakoub and Dr. Wesley are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

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One of the most frustrating problems we encounter is helping patients with skin issues that we cannot immediately fix or cure. Teaching them the art of concealing skin blemishes gives patients a sense of relief. Color correction is an art and requires an understanding of basic color theory and Fitzpatrick skin type.

On the color wheel, each color sits directly across from another color, making them complementary colors.

Thoth_Adan (thinkstockimages)

If we look at red, the color opposing it is green. When red and green are combined, they neutralize each other. One of the greatest dermatologists of all time and my mentor, Timothy Berger, MD, taught me that in dermatology color “hue” is a clue to understanding morphology. Everything that is red cannot just be called “erythematous.” There is orange/red (pityriasis rosea, tinea versicolor, seborrheic dermatitis), deep red (cellulitis, Sweet’s syndrome, acne scars, rosacea, psoriasis), purple/red (vasculitis, lichen planus (LP), veins, under-eye circles), brown/red (pigmented purpura, pigmented acne scars, sarcoid).

The combination of the underlying pathology, morphology, and Fitzpatrick type is both a clue to diagnosis and a pallet for skin concealers. We can use the following techniques to help patients color correct skin imperfections:

Dr. Lily Talakoub

Red: rosacea, acne scars, acne

Green-based concealers and primers are the best option to significantly reduce the redness. While green primers and correctors tend to be great for Fitzpatrick skin types I-III, a yellow-based concealer/corrector can help to cover redness on those with skin types IV-VI.

Blue: periorbital veins

If you are dealing with blue-toned skin lesions, such as periorbital veins, the ideal corrector is one with a peach or orange undertones. For skin types I-III, a peach/salmon corrector works best, whereas skin types IV-VI requires an orange-toned corrector.

Purple: under-eye circles, LP, postprocedure bruising

If under-eye circles tend to have a more purple hue to them, a yellow-based corrector works best for skin types I-III. For skin types IV-VI skin types, you will need a corrector with a red undertone.

Yellow: bruising

Purple/lavender correctors are best suited for eliminating yellow tones from the face. Purple also combats sallow undertones of the skin.

Brown: lentigines, melasma, seborrheic keratosis, post-inflammatory hyperpigmentation, nevi, café au lait spots

Dr. Naissan O. Wesley

Brown is actually the hardest of all colors to correct. The deeper the pigment (ashy dermatitis, melasma) the more gray the areas appear with skin concealers. The more superficial the pigment (ephelides, lentigines), the easier it is to correct. Generally speaking, peach toned concealers work best, not beige or brown. The corrector, however, should be lighter than the skin tone or the lesion itself will appear darker.

Helping patients conceal imperfections with these simple guidelines is a great way to help relieve some anxiety and help our patients fell more confident in their skin.

Dr. Talakoub and Dr. Wesley are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

One of the most frustrating problems we encounter is helping patients with skin issues that we cannot immediately fix or cure. Teaching them the art of concealing skin blemishes gives patients a sense of relief. Color correction is an art and requires an understanding of basic color theory and Fitzpatrick skin type.

On the color wheel, each color sits directly across from another color, making them complementary colors.

Thoth_Adan (thinkstockimages)

If we look at red, the color opposing it is green. When red and green are combined, they neutralize each other. One of the greatest dermatologists of all time and my mentor, Timothy Berger, MD, taught me that in dermatology color “hue” is a clue to understanding morphology. Everything that is red cannot just be called “erythematous.” There is orange/red (pityriasis rosea, tinea versicolor, seborrheic dermatitis), deep red (cellulitis, Sweet’s syndrome, acne scars, rosacea, psoriasis), purple/red (vasculitis, lichen planus (LP), veins, under-eye circles), brown/red (pigmented purpura, pigmented acne scars, sarcoid).

The combination of the underlying pathology, morphology, and Fitzpatrick type is both a clue to diagnosis and a pallet for skin concealers. We can use the following techniques to help patients color correct skin imperfections:

Dr. Lily Talakoub

Red: rosacea, acne scars, acne

Green-based concealers and primers are the best option to significantly reduce the redness. While green primers and correctors tend to be great for Fitzpatrick skin types I-III, a yellow-based concealer/corrector can help to cover redness on those with skin types IV-VI.

Blue: periorbital veins

If you are dealing with blue-toned skin lesions, such as periorbital veins, the ideal corrector is one with a peach or orange undertones. For skin types I-III, a peach/salmon corrector works best, whereas skin types IV-VI requires an orange-toned corrector.

Purple: under-eye circles, LP, postprocedure bruising

If under-eye circles tend to have a more purple hue to them, a yellow-based corrector works best for skin types I-III. For skin types IV-VI skin types, you will need a corrector with a red undertone.

Yellow: bruising

Purple/lavender correctors are best suited for eliminating yellow tones from the face. Purple also combats sallow undertones of the skin.

Brown: lentigines, melasma, seborrheic keratosis, post-inflammatory hyperpigmentation, nevi, café au lait spots

Dr. Naissan O. Wesley

Brown is actually the hardest of all colors to correct. The deeper the pigment (ashy dermatitis, melasma) the more gray the areas appear with skin concealers. The more superficial the pigment (ephelides, lentigines), the easier it is to correct. Generally speaking, peach toned concealers work best, not beige or brown. The corrector, however, should be lighter than the skin tone or the lesion itself will appear darker.

Helping patients conceal imperfections with these simple guidelines is a great way to help relieve some anxiety and help our patients fell more confident in their skin.

Dr. Talakoub and Dr. Wesley are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Write to them at [email protected].

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Laser and electrocautery plume

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A recent publication by Chuang et al. carefully characterizes the content of smoke (or plume) created from laser hair removal.1 At the University of California, Los Angeles, discarded terminal hairs from the trunk and extremities were collected from two adult volunteers. The hair samples were sealed in glass gas chromatography chambers and treated with either an 810-nm diode laser (Lightsheer, Lumenis) or 755-nm alexandrite laser (Gentlelase, Candela). During laser hair removal (LHR) treatment, two 6-L negative-pressure canisters were used to capture 30 seconds of laser plume, and a portable condensation particle counter was used to measure ultrafine particulates (less than 1 mcm). Ultrafine particle concentrations were measured within the treatment room, within the waiting room, and outside the building. The laser plume was then analyzed by gas chromatography–mass spectrometry (GC-MS) at the Boston University department of chemistry.

Analysis with GC-MS identified 377 chemical compounds. Sixty-two of the compounds exhibited strong absorption peaks, of which 13 are known or suspected carcinogens (including benzene, ethylbenzene, benzeneacetonitrile, acetonitrile, quinoline, isoquinoline, sterene, diethyl phthalate, 2-methylpyridine, naphthalene carbonitrile, and propene) and more than 20 are known environmental toxins causing acute toxic effects on exposure (including carbon monoxide, p-xylene, phenol, toluene, benzaldehyde, benzenedicarboxylic acid [phthalic acid], and long-chain and cyclic hydrocarbons).

Dr. Naissan O. Wesley

During LHR, the portable condensation particle counters documented an eightfold increase, compared with the ambient room baseline level of ultrafine particle concentrations (ambient room baseline, 15,300 particles per cubic centimeter [ppc]; LHR with smoke evacuator, 129,376 ppc), even when a smoke evacuator was in close proximity (5.0 cm) to the procedure site. When the smoke evacuator was turned off for 30 seconds, there was a more than 26-fold increase in particulate count, compared with ambient baseline levels (ambient baseline, 15,300 ppc; LHR without smoke evacuator for 30 seconds, 435,888 ppc).

It has long been known that smoke created from electrocautery also may impose a risk on the health care worker. In 2011, Lewin et al. published a comprehensive review of the risk that surgical smoke and laser imposes on the dermatologist.2 At this time, most of the laser data was for the plume created by ablative CO2 lasers. In their review, it was stated that surgical smoke is composed of 95% water and 5% particulate matter (made up of chemicals, blood and tissue particles, viruses, and bacteria). The size of the particulate matter is dictated by the device used, with electrosurgical units creating particles of roughly 0.07 mcm and lasers liberating particles of 0.31 mcm. The size of liberated particles is important as those smaller than 100 mcm in diameter remain airborne, and particles less than 2 mcm are deposited in the bronchioles and alveoli.

Electrocautery plume is composed mostly of hydrocarbons, phenols, nitriles, and fatty acids, but most notably carbon monoxide, acrylonitrile, hydrogen cyanide, and benzene, which may have carcinogenic potential. On the mucosa of the canine tongue, the mutagenic effect of the smoke from 1 g of cauterized tissue with laser and electrocautery was equivalent to those from three or six cigarettes, respectively. Pulmonary changes also may occur. Blood vessel hypertrophy, alveolar congestion, and emphysematous changes were seen in rats after plume created from both electrocautery and Nd:Yag ablation of porcine skin. In that study, pulmonary changes were less severe in rats exposed to surgical smoke collected with single- and double-filtered smoke evacuators than unfiltered smoke.

Infection also poses a risk, with bovine papillomavirus and HPV detected in CO2 laser plume as early as 1988. In 1995, Gloster and Roenigk at the Mayo Clinic conducted a comparative study using questionnaires sent to members of the American Society for Laser Surgeons and the American Society of Dermatologic Surgery.3 The comparison groups were CO2 laser surgeons and two large groups of patients in the community with a diagnosis of warts. Analysis revealed that CO2 laser surgeons had a statistically significant greater risk of acquiring nasopharyngeal warts but were less likely to acquire plantar, genital, and perianal warts than the Mayo Clinic patient group did, demonstrating that laser plume is a likely means by which HPV can be transmitted to the upper airway, suggesting that those using lasers to treat HPV lesions are at greater risk. Staphylococcus, Corynebacterium, and Neisseria also have been detected during laser resurfacing.

Dr. Lily Talakoub

Traditional surgical masks are able to capture particles greater than 5 mcm but offer no protection against particulate matter produced by electrosurgical and laser devices liberating byproducts less than 1 mcm. Laser masks or high-filtration masks provide greater protection than do standard surgical masks and are able to filter particles to 1.1 mcm; however, it has been shown that approximately 77% of particulate matter in surgical smoke is 1.1 mcm and smaller. Smoke evacuators consist of a suction unit (vacuum pump), filter, hose, and inlet nozzle. The smoke evacuator should have a capture velocity of approximately 30-45 m/min at the inlet nozzle. As the effectiveness of the smoke evacuator decreases with farther distance away from the procedure site, the current study of laser plume from LHR recommends that the smoke evacuator be placed within 5 cm of plume generation.4 In a study of warts treated with CO2 laser or electrocoagulation, smoke evacuators are 98.6% effective when placed 1 cm from the treatment site, with efficacy decreasing to 50% when moved to 2 cm from the treatment site.

 

 

As our specialty likely conducts the highest proportion of laser and electrosurgical procedures of any specialty, current recommendations for electrocautery, laser resurfacing, and LHR should include adequate air filtration and the use of high-filtration masks and smoke evacuators by the health care practitioner.

References

1. JAMA Dermatol. 2016 Jul 6. doi: 10.1001/jamadermatol.2016.2097. [Epub ahead of print]

2. J Am Acad Dermatol. 2011 Sep;65(3):636-41.

3. J Am Acad Dermatol. 1995 Mar;32(3):436-41.

4. J Am Acad Dermatol. 1989 Jul;21(1):41-9.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Wesley. Write to them at [email protected].

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A recent publication by Chuang et al. carefully characterizes the content of smoke (or plume) created from laser hair removal.1 At the University of California, Los Angeles, discarded terminal hairs from the trunk and extremities were collected from two adult volunteers. The hair samples were sealed in glass gas chromatography chambers and treated with either an 810-nm diode laser (Lightsheer, Lumenis) or 755-nm alexandrite laser (Gentlelase, Candela). During laser hair removal (LHR) treatment, two 6-L negative-pressure canisters were used to capture 30 seconds of laser plume, and a portable condensation particle counter was used to measure ultrafine particulates (less than 1 mcm). Ultrafine particle concentrations were measured within the treatment room, within the waiting room, and outside the building. The laser plume was then analyzed by gas chromatography–mass spectrometry (GC-MS) at the Boston University department of chemistry.

Analysis with GC-MS identified 377 chemical compounds. Sixty-two of the compounds exhibited strong absorption peaks, of which 13 are known or suspected carcinogens (including benzene, ethylbenzene, benzeneacetonitrile, acetonitrile, quinoline, isoquinoline, sterene, diethyl phthalate, 2-methylpyridine, naphthalene carbonitrile, and propene) and more than 20 are known environmental toxins causing acute toxic effects on exposure (including carbon monoxide, p-xylene, phenol, toluene, benzaldehyde, benzenedicarboxylic acid [phthalic acid], and long-chain and cyclic hydrocarbons).

Dr. Naissan O. Wesley

During LHR, the portable condensation particle counters documented an eightfold increase, compared with the ambient room baseline level of ultrafine particle concentrations (ambient room baseline, 15,300 particles per cubic centimeter [ppc]; LHR with smoke evacuator, 129,376 ppc), even when a smoke evacuator was in close proximity (5.0 cm) to the procedure site. When the smoke evacuator was turned off for 30 seconds, there was a more than 26-fold increase in particulate count, compared with ambient baseline levels (ambient baseline, 15,300 ppc; LHR without smoke evacuator for 30 seconds, 435,888 ppc).

It has long been known that smoke created from electrocautery also may impose a risk on the health care worker. In 2011, Lewin et al. published a comprehensive review of the risk that surgical smoke and laser imposes on the dermatologist.2 At this time, most of the laser data was for the plume created by ablative CO2 lasers. In their review, it was stated that surgical smoke is composed of 95% water and 5% particulate matter (made up of chemicals, blood and tissue particles, viruses, and bacteria). The size of the particulate matter is dictated by the device used, with electrosurgical units creating particles of roughly 0.07 mcm and lasers liberating particles of 0.31 mcm. The size of liberated particles is important as those smaller than 100 mcm in diameter remain airborne, and particles less than 2 mcm are deposited in the bronchioles and alveoli.

Electrocautery plume is composed mostly of hydrocarbons, phenols, nitriles, and fatty acids, but most notably carbon monoxide, acrylonitrile, hydrogen cyanide, and benzene, which may have carcinogenic potential. On the mucosa of the canine tongue, the mutagenic effect of the smoke from 1 g of cauterized tissue with laser and electrocautery was equivalent to those from three or six cigarettes, respectively. Pulmonary changes also may occur. Blood vessel hypertrophy, alveolar congestion, and emphysematous changes were seen in rats after plume created from both electrocautery and Nd:Yag ablation of porcine skin. In that study, pulmonary changes were less severe in rats exposed to surgical smoke collected with single- and double-filtered smoke evacuators than unfiltered smoke.

Infection also poses a risk, with bovine papillomavirus and HPV detected in CO2 laser plume as early as 1988. In 1995, Gloster and Roenigk at the Mayo Clinic conducted a comparative study using questionnaires sent to members of the American Society for Laser Surgeons and the American Society of Dermatologic Surgery.3 The comparison groups were CO2 laser surgeons and two large groups of patients in the community with a diagnosis of warts. Analysis revealed that CO2 laser surgeons had a statistically significant greater risk of acquiring nasopharyngeal warts but were less likely to acquire plantar, genital, and perianal warts than the Mayo Clinic patient group did, demonstrating that laser plume is a likely means by which HPV can be transmitted to the upper airway, suggesting that those using lasers to treat HPV lesions are at greater risk. Staphylococcus, Corynebacterium, and Neisseria also have been detected during laser resurfacing.

Dr. Lily Talakoub

Traditional surgical masks are able to capture particles greater than 5 mcm but offer no protection against particulate matter produced by electrosurgical and laser devices liberating byproducts less than 1 mcm. Laser masks or high-filtration masks provide greater protection than do standard surgical masks and are able to filter particles to 1.1 mcm; however, it has been shown that approximately 77% of particulate matter in surgical smoke is 1.1 mcm and smaller. Smoke evacuators consist of a suction unit (vacuum pump), filter, hose, and inlet nozzle. The smoke evacuator should have a capture velocity of approximately 30-45 m/min at the inlet nozzle. As the effectiveness of the smoke evacuator decreases with farther distance away from the procedure site, the current study of laser plume from LHR recommends that the smoke evacuator be placed within 5 cm of plume generation.4 In a study of warts treated with CO2 laser or electrocoagulation, smoke evacuators are 98.6% effective when placed 1 cm from the treatment site, with efficacy decreasing to 50% when moved to 2 cm from the treatment site.

 

 

As our specialty likely conducts the highest proportion of laser and electrosurgical procedures of any specialty, current recommendations for electrocautery, laser resurfacing, and LHR should include adequate air filtration and the use of high-filtration masks and smoke evacuators by the health care practitioner.

References

1. JAMA Dermatol. 2016 Jul 6. doi: 10.1001/jamadermatol.2016.2097. [Epub ahead of print]

2. J Am Acad Dermatol. 2011 Sep;65(3):636-41.

3. J Am Acad Dermatol. 1995 Mar;32(3):436-41.

4. J Am Acad Dermatol. 1989 Jul;21(1):41-9.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Wesley. Write to them at [email protected].

A recent publication by Chuang et al. carefully characterizes the content of smoke (or plume) created from laser hair removal.1 At the University of California, Los Angeles, discarded terminal hairs from the trunk and extremities were collected from two adult volunteers. The hair samples were sealed in glass gas chromatography chambers and treated with either an 810-nm diode laser (Lightsheer, Lumenis) or 755-nm alexandrite laser (Gentlelase, Candela). During laser hair removal (LHR) treatment, two 6-L negative-pressure canisters were used to capture 30 seconds of laser plume, and a portable condensation particle counter was used to measure ultrafine particulates (less than 1 mcm). Ultrafine particle concentrations were measured within the treatment room, within the waiting room, and outside the building. The laser plume was then analyzed by gas chromatography–mass spectrometry (GC-MS) at the Boston University department of chemistry.

Analysis with GC-MS identified 377 chemical compounds. Sixty-two of the compounds exhibited strong absorption peaks, of which 13 are known or suspected carcinogens (including benzene, ethylbenzene, benzeneacetonitrile, acetonitrile, quinoline, isoquinoline, sterene, diethyl phthalate, 2-methylpyridine, naphthalene carbonitrile, and propene) and more than 20 are known environmental toxins causing acute toxic effects on exposure (including carbon monoxide, p-xylene, phenol, toluene, benzaldehyde, benzenedicarboxylic acid [phthalic acid], and long-chain and cyclic hydrocarbons).

Dr. Naissan O. Wesley

During LHR, the portable condensation particle counters documented an eightfold increase, compared with the ambient room baseline level of ultrafine particle concentrations (ambient room baseline, 15,300 particles per cubic centimeter [ppc]; LHR with smoke evacuator, 129,376 ppc), even when a smoke evacuator was in close proximity (5.0 cm) to the procedure site. When the smoke evacuator was turned off for 30 seconds, there was a more than 26-fold increase in particulate count, compared with ambient baseline levels (ambient baseline, 15,300 ppc; LHR without smoke evacuator for 30 seconds, 435,888 ppc).

It has long been known that smoke created from electrocautery also may impose a risk on the health care worker. In 2011, Lewin et al. published a comprehensive review of the risk that surgical smoke and laser imposes on the dermatologist.2 At this time, most of the laser data was for the plume created by ablative CO2 lasers. In their review, it was stated that surgical smoke is composed of 95% water and 5% particulate matter (made up of chemicals, blood and tissue particles, viruses, and bacteria). The size of the particulate matter is dictated by the device used, with electrosurgical units creating particles of roughly 0.07 mcm and lasers liberating particles of 0.31 mcm. The size of liberated particles is important as those smaller than 100 mcm in diameter remain airborne, and particles less than 2 mcm are deposited in the bronchioles and alveoli.

Electrocautery plume is composed mostly of hydrocarbons, phenols, nitriles, and fatty acids, but most notably carbon monoxide, acrylonitrile, hydrogen cyanide, and benzene, which may have carcinogenic potential. On the mucosa of the canine tongue, the mutagenic effect of the smoke from 1 g of cauterized tissue with laser and electrocautery was equivalent to those from three or six cigarettes, respectively. Pulmonary changes also may occur. Blood vessel hypertrophy, alveolar congestion, and emphysematous changes were seen in rats after plume created from both electrocautery and Nd:Yag ablation of porcine skin. In that study, pulmonary changes were less severe in rats exposed to surgical smoke collected with single- and double-filtered smoke evacuators than unfiltered smoke.

Infection also poses a risk, with bovine papillomavirus and HPV detected in CO2 laser plume as early as 1988. In 1995, Gloster and Roenigk at the Mayo Clinic conducted a comparative study using questionnaires sent to members of the American Society for Laser Surgeons and the American Society of Dermatologic Surgery.3 The comparison groups were CO2 laser surgeons and two large groups of patients in the community with a diagnosis of warts. Analysis revealed that CO2 laser surgeons had a statistically significant greater risk of acquiring nasopharyngeal warts but were less likely to acquire plantar, genital, and perianal warts than the Mayo Clinic patient group did, demonstrating that laser plume is a likely means by which HPV can be transmitted to the upper airway, suggesting that those using lasers to treat HPV lesions are at greater risk. Staphylococcus, Corynebacterium, and Neisseria also have been detected during laser resurfacing.

Dr. Lily Talakoub

Traditional surgical masks are able to capture particles greater than 5 mcm but offer no protection against particulate matter produced by electrosurgical and laser devices liberating byproducts less than 1 mcm. Laser masks or high-filtration masks provide greater protection than do standard surgical masks and are able to filter particles to 1.1 mcm; however, it has been shown that approximately 77% of particulate matter in surgical smoke is 1.1 mcm and smaller. Smoke evacuators consist of a suction unit (vacuum pump), filter, hose, and inlet nozzle. The smoke evacuator should have a capture velocity of approximately 30-45 m/min at the inlet nozzle. As the effectiveness of the smoke evacuator decreases with farther distance away from the procedure site, the current study of laser plume from LHR recommends that the smoke evacuator be placed within 5 cm of plume generation.4 In a study of warts treated with CO2 laser or electrocoagulation, smoke evacuators are 98.6% effective when placed 1 cm from the treatment site, with efficacy decreasing to 50% when moved to 2 cm from the treatment site.

 

 

As our specialty likely conducts the highest proportion of laser and electrosurgical procedures of any specialty, current recommendations for electrocautery, laser resurfacing, and LHR should include adequate air filtration and the use of high-filtration masks and smoke evacuators by the health care practitioner.

References

1. JAMA Dermatol. 2016 Jul 6. doi: 10.1001/jamadermatol.2016.2097. [Epub ahead of print]

2. J Am Acad Dermatol. 2011 Sep;65(3):636-41.

3. J Am Acad Dermatol. 1995 Mar;32(3):436-41.

4. J Am Acad Dermatol. 1989 Jul;21(1):41-9.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Wesley. Write to them at [email protected].

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Aesthetic Dermatology: Synthetic second skin

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Hot off the presses, a new so-called “second skin” is being redeveloped and rebranded for use in both cosmetic and medical dermatology. But what is this substance, and will it hold up to all the claims the manufacturer and research team suggest?

Recently described in Nature Materials, the liquid polymer developed by chemical engineers at MIT is a synthetic, adherent silicone-based film that lies perfectly invisibly on the skin – providing a pulling or temporary tightening of the skin. The product was initially marketed by the company Living Proof as “Neotensil” [an acronym for (Neo) new, (T) transforming, (E) elastic, (N) non-invasive, (S) supportive, (I) invisible, and immediate (L) layer solution]. When applied to the area under the eye, the product creates a so-called “Spanx” effect or tightening of periorbital skin.

Dr. Lily Talakoub

The material – called XPL – is delivered in a two-step sequential process. First, a polysiloxane cream is applied to the skin, followed by a platinum catalyst that induces the polymer to harden and tighten the skin underneath. The product uses patented Strateris technology, which is described as creating invisible “shapewear” for the eye; a film that tightens, smooths, and lifts the appearance of skin for up to 24 hours. It was briefly on the market in 2014-2015, then taken off the market to be redeveloped.

Does it work? Yes. Although it takes about an hour to take effect, the clinical results are jaw dropping. However, it also has its drawbacks. The polymer – which hardens within 2 minutes – must be applied to clean skin, with no creams or makeup whatsoever. And makeup cannot be applied over the treated area either, as the area looks irregular and uneven with makeup. This is a very difficult obstacle to overcome for many female patients.

Additionally, to take off the product, the polymer must be dissolved with a special chemical remover that is packaged with the product. Without this key component, it is very difficult and very irritating to remove. Although none of the patients I have used this product on have developed allergic reactions, any synthetic polymer, particularly one with adherent properties, has the potential to be an irritant and/or an allergen. Long-term clinical trials are needed to both validate its efficacy and side-effect profile.

Dr. Naissan O. Wesley

The potential for clinical uses is vast. The product has been shown to provide a synthetic skin barrier that minimizes transepidermal water loss, improving skin hydration. Its uses in burns, atopic dermatitis, bullous disease, and psoriasis could help those with altered skin-barrier function. The researchers are also hoping to use this product for targeted drug delivery and for UV protection.

After a decade of research, the MIT team has developed a skinlike material that is invisible and mimics both the mechanical and elastic properties of the skin. Future clinical studies are essential to evaluating its broad applicability in both dermatology and general medicine.

1. Nature Materials 2016. doi:10.1038/nmat4635.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Dr. Talakoub has no disclosures related to the product. Write to them at [email protected].

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Hot off the presses, a new so-called “second skin” is being redeveloped and rebranded for use in both cosmetic and medical dermatology. But what is this substance, and will it hold up to all the claims the manufacturer and research team suggest?

Recently described in Nature Materials, the liquid polymer developed by chemical engineers at MIT is a synthetic, adherent silicone-based film that lies perfectly invisibly on the skin – providing a pulling or temporary tightening of the skin. The product was initially marketed by the company Living Proof as “Neotensil” [an acronym for (Neo) new, (T) transforming, (E) elastic, (N) non-invasive, (S) supportive, (I) invisible, and immediate (L) layer solution]. When applied to the area under the eye, the product creates a so-called “Spanx” effect or tightening of periorbital skin.

Dr. Lily Talakoub

The material – called XPL – is delivered in a two-step sequential process. First, a polysiloxane cream is applied to the skin, followed by a platinum catalyst that induces the polymer to harden and tighten the skin underneath. The product uses patented Strateris technology, which is described as creating invisible “shapewear” for the eye; a film that tightens, smooths, and lifts the appearance of skin for up to 24 hours. It was briefly on the market in 2014-2015, then taken off the market to be redeveloped.

Does it work? Yes. Although it takes about an hour to take effect, the clinical results are jaw dropping. However, it also has its drawbacks. The polymer – which hardens within 2 minutes – must be applied to clean skin, with no creams or makeup whatsoever. And makeup cannot be applied over the treated area either, as the area looks irregular and uneven with makeup. This is a very difficult obstacle to overcome for many female patients.

Additionally, to take off the product, the polymer must be dissolved with a special chemical remover that is packaged with the product. Without this key component, it is very difficult and very irritating to remove. Although none of the patients I have used this product on have developed allergic reactions, any synthetic polymer, particularly one with adherent properties, has the potential to be an irritant and/or an allergen. Long-term clinical trials are needed to both validate its efficacy and side-effect profile.

Dr. Naissan O. Wesley

The potential for clinical uses is vast. The product has been shown to provide a synthetic skin barrier that minimizes transepidermal water loss, improving skin hydration. Its uses in burns, atopic dermatitis, bullous disease, and psoriasis could help those with altered skin-barrier function. The researchers are also hoping to use this product for targeted drug delivery and for UV protection.

After a decade of research, the MIT team has developed a skinlike material that is invisible and mimics both the mechanical and elastic properties of the skin. Future clinical studies are essential to evaluating its broad applicability in both dermatology and general medicine.

1. Nature Materials 2016. doi:10.1038/nmat4635.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Dr. Talakoub has no disclosures related to the product. Write to them at [email protected].

Hot off the presses, a new so-called “second skin” is being redeveloped and rebranded for use in both cosmetic and medical dermatology. But what is this substance, and will it hold up to all the claims the manufacturer and research team suggest?

Recently described in Nature Materials, the liquid polymer developed by chemical engineers at MIT is a synthetic, adherent silicone-based film that lies perfectly invisibly on the skin – providing a pulling or temporary tightening of the skin. The product was initially marketed by the company Living Proof as “Neotensil” [an acronym for (Neo) new, (T) transforming, (E) elastic, (N) non-invasive, (S) supportive, (I) invisible, and immediate (L) layer solution]. When applied to the area under the eye, the product creates a so-called “Spanx” effect or tightening of periorbital skin.

Dr. Lily Talakoub

The material – called XPL – is delivered in a two-step sequential process. First, a polysiloxane cream is applied to the skin, followed by a platinum catalyst that induces the polymer to harden and tighten the skin underneath. The product uses patented Strateris technology, which is described as creating invisible “shapewear” for the eye; a film that tightens, smooths, and lifts the appearance of skin for up to 24 hours. It was briefly on the market in 2014-2015, then taken off the market to be redeveloped.

Does it work? Yes. Although it takes about an hour to take effect, the clinical results are jaw dropping. However, it also has its drawbacks. The polymer – which hardens within 2 minutes – must be applied to clean skin, with no creams or makeup whatsoever. And makeup cannot be applied over the treated area either, as the area looks irregular and uneven with makeup. This is a very difficult obstacle to overcome for many female patients.

Additionally, to take off the product, the polymer must be dissolved with a special chemical remover that is packaged with the product. Without this key component, it is very difficult and very irritating to remove. Although none of the patients I have used this product on have developed allergic reactions, any synthetic polymer, particularly one with adherent properties, has the potential to be an irritant and/or an allergen. Long-term clinical trials are needed to both validate its efficacy and side-effect profile.

Dr. Naissan O. Wesley

The potential for clinical uses is vast. The product has been shown to provide a synthetic skin barrier that minimizes transepidermal water loss, improving skin hydration. Its uses in burns, atopic dermatitis, bullous disease, and psoriasis could help those with altered skin-barrier function. The researchers are also hoping to use this product for targeted drug delivery and for UV protection.

After a decade of research, the MIT team has developed a skinlike material that is invisible and mimics both the mechanical and elastic properties of the skin. Future clinical studies are essential to evaluating its broad applicability in both dermatology and general medicine.

1. Nature Materials 2016. doi:10.1038/nmat4635.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Talakoub. Dr. Talakoub has no disclosures related to the product. Write to them at [email protected].

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Aesthetic Dermatology: Effects of climate change on skin

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Global climate appears to be changing at an unprecedented rate. Climate change can be caused by many factors, including variations in solar radiation received by the earth, oceanic circulation, plate tectonics, as well as human-induced alterations of the natural world. Many human activities, such as the use of fossil fuel and the consequent accumulation of greenhouse gases in the atmosphere, land consumption, deforestation, industrial processes, as well as some agriculture practices, are contributing to global climate change. Many have reported on the current trend toward global warming (average surface temperature has augmented by 0.6°C over the past 100 years), decreased precipitation, atmospheric humidity changes, and the rise in global extreme climatic events. The magnitude and cause of these changes and their impact on human activity have become important matters of debate worldwide, representing climate change as one of the greatest challenges of the modern age.

Although many articles have been written based on observations and various predictive models of how climate change could affect social, economic, and health systems, only a few studies exist about the effects of this change on skin and skin disease. However, the skin is the most highly exposed organ to the environment; therefore, cutaneous conditions are inclined to respond to changes in climate.

Skin cancer

Dr. Naissan O. Wesley

The World Health Organization predicts that the depletion of the ozone layer could lead to further increased rates of melanoma and nonmelanoma skin cancer. In humans, it has been speculated that a long-term rise of temperature by 2°C could increase the carcinogenic effectiveness of solar UV by 10%.

Strictly speaking, stratospheric ozone depletion is not part of “global climate change,” which occurs in the troposphere. There are, however, several recently described interactions between ozone depletion and greenhouse gas–induced warming. Stratospheric ozone absorbs much of the incoming solar ultraviolet radiation, especially the biologically more damaging, shorter-wavelength UVB wavelengths. We now know that various industrial halogenated chemicals such as the chlorofluorocarbons or CFCs (used in refrigeration, insulation, and spray-can propellants) and methyl bromide, while inert at ambient Earth-surface temperatures, react with ozone in the extremely cold polar stratosphere. This destruction of ozone occurs especially in late winter and early spring.

During the 1980s and 1990s at northern midlatitudes (such as Europe), the average year-round ozone concentration declined by around 4% per decade; over the southern regions of Australia, New Zealand, Argentina, and South Africa, the figure approximated 6%-7%. UV exposures at northern midlatitudes are likely to peak around 2020, with an estimated 10% increase in effective ultraviolet radiation relative to 1980s levels.

Dr. Lily Talakoub

The modeling of future ozone levels and UV radiation (UVR) exposures has estimated that, in consequence, a ‘European’ population living at around 45 degrees North will experience, by 2050, an approximate 5% excess of total skin cancer incidence (assuming, conservatively, no change in age distribution). The equivalent estimation for the U.S. population is for a 10% increase in skin cancer incidence by around 2050.

In the mid-1980s, governments recognized the emerging hazard from ozone depletion. The Montreal Protocol of 1987 was adopted, and the phasing out of major ozone-destroying gases began. Some anticipate a slow but near-complete recovery of stratospheric ozone by the middle of the twenty-first century; the Environmental Protection Agency (EPA) estimates recovery by 2065 with strict adherence to protection protocols.

Increased exposure to UVR also leads to increased rates of lens opacification, cataracts, and whole-body immunosuppression. UVR-induced immunosuppression could influence patterns of infectious disease. It may also influence the occurrence and progression of various autoimmune diseases and, less certainly, vaccine efficacy.

Extreme weather events

The International Society of Dermatology Task Force on Climate Change reports that weather phenomena such as El Niño also result in changes to dermatologic conditions. The El Niño Southern Oscillation (ENSO) is a complex climate phenomenon occurring in the Pacific Ocean at intervals of 2-7 years. The term refers to fluctuations in ocean temperatures in the tropical eastern Pacific Ocean (El Niño, the warm phase of ENSO, and La Niña, the cool phase of ENSO) and in atmospheric pressure across the Pacific basin (Southern Oscillation). This weather pattern is attributed with causing climate change in certain parts of the world and is associated with disease outbreaks.

El Niño has been associated with increases in the occurrence of actinic keratosis, tinea, pityriasis versicolor, miliaria, folliculitis, rosacea, dermatitis caused by Paederus irritans and Paederus sabaeus, and certain vector-borne and waterborne diseases (such as dengue fever, leishmaniasis, Chagas disease, Barmah Forest virus, and leptospirosis), and with decreases in the occurrence of dermatitis, scabies, psoriasis, and papular urticaria. La Niña has been associated with increases in the occurrence of varicella; hand, foot, and mouth disease; and Ross River virus (in certain areas), and decreases in viral warts and leishmaniasis.

 

 

Separately, global warming is expected to affect the start, duration, and intensity of the pollen season, and secondarily the rate of asthma exacerbations due to air pollution, respiratory infections, and/or cold air inhalation, with probable increases in eczema and other atopy-related conditions as well.

Vector-borne diseases

In the past year, the largest Ebola virus outbreak in West Africa has resulted in importation of the virus to other countries and secondary local transmission. Autochthonous transmission of Chikungunya virus has occurred in nonendemic areas, including Europe, the Caribbean, and the Americas. Zika virus has re-emerged in the Pacific with local transmission from imported cases. Climate change, deforestation, and changes in precipitation have been linked to variations in the geographical distribution of vectors of some infectious diseases (leishmaniasis, Lyme disease, and now Zika virus) by changing their spread. A warm and humid environment from global warming can also encourage the colonization of the skin by bacteria and fungi.

Finally, there is a wider, ecological dimension to consider. UV radiation impairs the molecular chemistry of photosynthesis both on land (terrestrial plants) and at sea (phytoplankton). This could affect world food production, at least marginally, and thus contribute to nutritional and health problems in food-insecure populations.

Another reason of many, but from a dermatologist’s point of view, to be mindful of taking care of the planet and our environment.

References

1. World Health Organization (WHO).

2. Photochem Photobiol Sci. 2002 May;1(5):324-6.

3. G Ital Dermatol Venereol. 2013 Feb;148(1):135-46.

4. Int J Dermatol. 2012 Jun;51(6):656-61.

5. Int J Dermatol. 2015 Dec;54(12):1343-51.

6. Curr Opin Infect Dis. 2015 Apr;28(2):139-50.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Wesley. Write to them at [email protected].

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Global climate appears to be changing at an unprecedented rate. Climate change can be caused by many factors, including variations in solar radiation received by the earth, oceanic circulation, plate tectonics, as well as human-induced alterations of the natural world. Many human activities, such as the use of fossil fuel and the consequent accumulation of greenhouse gases in the atmosphere, land consumption, deforestation, industrial processes, as well as some agriculture practices, are contributing to global climate change. Many have reported on the current trend toward global warming (average surface temperature has augmented by 0.6°C over the past 100 years), decreased precipitation, atmospheric humidity changes, and the rise in global extreme climatic events. The magnitude and cause of these changes and their impact on human activity have become important matters of debate worldwide, representing climate change as one of the greatest challenges of the modern age.

Although many articles have been written based on observations and various predictive models of how climate change could affect social, economic, and health systems, only a few studies exist about the effects of this change on skin and skin disease. However, the skin is the most highly exposed organ to the environment; therefore, cutaneous conditions are inclined to respond to changes in climate.

Skin cancer

Dr. Naissan O. Wesley

The World Health Organization predicts that the depletion of the ozone layer could lead to further increased rates of melanoma and nonmelanoma skin cancer. In humans, it has been speculated that a long-term rise of temperature by 2°C could increase the carcinogenic effectiveness of solar UV by 10%.

Strictly speaking, stratospheric ozone depletion is not part of “global climate change,” which occurs in the troposphere. There are, however, several recently described interactions between ozone depletion and greenhouse gas–induced warming. Stratospheric ozone absorbs much of the incoming solar ultraviolet radiation, especially the biologically more damaging, shorter-wavelength UVB wavelengths. We now know that various industrial halogenated chemicals such as the chlorofluorocarbons or CFCs (used in refrigeration, insulation, and spray-can propellants) and methyl bromide, while inert at ambient Earth-surface temperatures, react with ozone in the extremely cold polar stratosphere. This destruction of ozone occurs especially in late winter and early spring.

During the 1980s and 1990s at northern midlatitudes (such as Europe), the average year-round ozone concentration declined by around 4% per decade; over the southern regions of Australia, New Zealand, Argentina, and South Africa, the figure approximated 6%-7%. UV exposures at northern midlatitudes are likely to peak around 2020, with an estimated 10% increase in effective ultraviolet radiation relative to 1980s levels.

Dr. Lily Talakoub

The modeling of future ozone levels and UV radiation (UVR) exposures has estimated that, in consequence, a ‘European’ population living at around 45 degrees North will experience, by 2050, an approximate 5% excess of total skin cancer incidence (assuming, conservatively, no change in age distribution). The equivalent estimation for the U.S. population is for a 10% increase in skin cancer incidence by around 2050.

In the mid-1980s, governments recognized the emerging hazard from ozone depletion. The Montreal Protocol of 1987 was adopted, and the phasing out of major ozone-destroying gases began. Some anticipate a slow but near-complete recovery of stratospheric ozone by the middle of the twenty-first century; the Environmental Protection Agency (EPA) estimates recovery by 2065 with strict adherence to protection protocols.

Increased exposure to UVR also leads to increased rates of lens opacification, cataracts, and whole-body immunosuppression. UVR-induced immunosuppression could influence patterns of infectious disease. It may also influence the occurrence and progression of various autoimmune diseases and, less certainly, vaccine efficacy.

Extreme weather events

The International Society of Dermatology Task Force on Climate Change reports that weather phenomena such as El Niño also result in changes to dermatologic conditions. The El Niño Southern Oscillation (ENSO) is a complex climate phenomenon occurring in the Pacific Ocean at intervals of 2-7 years. The term refers to fluctuations in ocean temperatures in the tropical eastern Pacific Ocean (El Niño, the warm phase of ENSO, and La Niña, the cool phase of ENSO) and in atmospheric pressure across the Pacific basin (Southern Oscillation). This weather pattern is attributed with causing climate change in certain parts of the world and is associated with disease outbreaks.

El Niño has been associated with increases in the occurrence of actinic keratosis, tinea, pityriasis versicolor, miliaria, folliculitis, rosacea, dermatitis caused by Paederus irritans and Paederus sabaeus, and certain vector-borne and waterborne diseases (such as dengue fever, leishmaniasis, Chagas disease, Barmah Forest virus, and leptospirosis), and with decreases in the occurrence of dermatitis, scabies, psoriasis, and papular urticaria. La Niña has been associated with increases in the occurrence of varicella; hand, foot, and mouth disease; and Ross River virus (in certain areas), and decreases in viral warts and leishmaniasis.

 

 

Separately, global warming is expected to affect the start, duration, and intensity of the pollen season, and secondarily the rate of asthma exacerbations due to air pollution, respiratory infections, and/or cold air inhalation, with probable increases in eczema and other atopy-related conditions as well.

Vector-borne diseases

In the past year, the largest Ebola virus outbreak in West Africa has resulted in importation of the virus to other countries and secondary local transmission. Autochthonous transmission of Chikungunya virus has occurred in nonendemic areas, including Europe, the Caribbean, and the Americas. Zika virus has re-emerged in the Pacific with local transmission from imported cases. Climate change, deforestation, and changes in precipitation have been linked to variations in the geographical distribution of vectors of some infectious diseases (leishmaniasis, Lyme disease, and now Zika virus) by changing their spread. A warm and humid environment from global warming can also encourage the colonization of the skin by bacteria and fungi.

Finally, there is a wider, ecological dimension to consider. UV radiation impairs the molecular chemistry of photosynthesis both on land (terrestrial plants) and at sea (phytoplankton). This could affect world food production, at least marginally, and thus contribute to nutritional and health problems in food-insecure populations.

Another reason of many, but from a dermatologist’s point of view, to be mindful of taking care of the planet and our environment.

References

1. World Health Organization (WHO).

2. Photochem Photobiol Sci. 2002 May;1(5):324-6.

3. G Ital Dermatol Venereol. 2013 Feb;148(1):135-46.

4. Int J Dermatol. 2012 Jun;51(6):656-61.

5. Int J Dermatol. 2015 Dec;54(12):1343-51.

6. Curr Opin Infect Dis. 2015 Apr;28(2):139-50.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Wesley. Write to them at [email protected].

Global climate appears to be changing at an unprecedented rate. Climate change can be caused by many factors, including variations in solar radiation received by the earth, oceanic circulation, plate tectonics, as well as human-induced alterations of the natural world. Many human activities, such as the use of fossil fuel and the consequent accumulation of greenhouse gases in the atmosphere, land consumption, deforestation, industrial processes, as well as some agriculture practices, are contributing to global climate change. Many have reported on the current trend toward global warming (average surface temperature has augmented by 0.6°C over the past 100 years), decreased precipitation, atmospheric humidity changes, and the rise in global extreme climatic events. The magnitude and cause of these changes and their impact on human activity have become important matters of debate worldwide, representing climate change as one of the greatest challenges of the modern age.

Although many articles have been written based on observations and various predictive models of how climate change could affect social, economic, and health systems, only a few studies exist about the effects of this change on skin and skin disease. However, the skin is the most highly exposed organ to the environment; therefore, cutaneous conditions are inclined to respond to changes in climate.

Skin cancer

Dr. Naissan O. Wesley

The World Health Organization predicts that the depletion of the ozone layer could lead to further increased rates of melanoma and nonmelanoma skin cancer. In humans, it has been speculated that a long-term rise of temperature by 2°C could increase the carcinogenic effectiveness of solar UV by 10%.

Strictly speaking, stratospheric ozone depletion is not part of “global climate change,” which occurs in the troposphere. There are, however, several recently described interactions between ozone depletion and greenhouse gas–induced warming. Stratospheric ozone absorbs much of the incoming solar ultraviolet radiation, especially the biologically more damaging, shorter-wavelength UVB wavelengths. We now know that various industrial halogenated chemicals such as the chlorofluorocarbons or CFCs (used in refrigeration, insulation, and spray-can propellants) and methyl bromide, while inert at ambient Earth-surface temperatures, react with ozone in the extremely cold polar stratosphere. This destruction of ozone occurs especially in late winter and early spring.

During the 1980s and 1990s at northern midlatitudes (such as Europe), the average year-round ozone concentration declined by around 4% per decade; over the southern regions of Australia, New Zealand, Argentina, and South Africa, the figure approximated 6%-7%. UV exposures at northern midlatitudes are likely to peak around 2020, with an estimated 10% increase in effective ultraviolet radiation relative to 1980s levels.

Dr. Lily Talakoub

The modeling of future ozone levels and UV radiation (UVR) exposures has estimated that, in consequence, a ‘European’ population living at around 45 degrees North will experience, by 2050, an approximate 5% excess of total skin cancer incidence (assuming, conservatively, no change in age distribution). The equivalent estimation for the U.S. population is for a 10% increase in skin cancer incidence by around 2050.

In the mid-1980s, governments recognized the emerging hazard from ozone depletion. The Montreal Protocol of 1987 was adopted, and the phasing out of major ozone-destroying gases began. Some anticipate a slow but near-complete recovery of stratospheric ozone by the middle of the twenty-first century; the Environmental Protection Agency (EPA) estimates recovery by 2065 with strict adherence to protection protocols.

Increased exposure to UVR also leads to increased rates of lens opacification, cataracts, and whole-body immunosuppression. UVR-induced immunosuppression could influence patterns of infectious disease. It may also influence the occurrence and progression of various autoimmune diseases and, less certainly, vaccine efficacy.

Extreme weather events

The International Society of Dermatology Task Force on Climate Change reports that weather phenomena such as El Niño also result in changes to dermatologic conditions. The El Niño Southern Oscillation (ENSO) is a complex climate phenomenon occurring in the Pacific Ocean at intervals of 2-7 years. The term refers to fluctuations in ocean temperatures in the tropical eastern Pacific Ocean (El Niño, the warm phase of ENSO, and La Niña, the cool phase of ENSO) and in atmospheric pressure across the Pacific basin (Southern Oscillation). This weather pattern is attributed with causing climate change in certain parts of the world and is associated with disease outbreaks.

El Niño has been associated with increases in the occurrence of actinic keratosis, tinea, pityriasis versicolor, miliaria, folliculitis, rosacea, dermatitis caused by Paederus irritans and Paederus sabaeus, and certain vector-borne and waterborne diseases (such as dengue fever, leishmaniasis, Chagas disease, Barmah Forest virus, and leptospirosis), and with decreases in the occurrence of dermatitis, scabies, psoriasis, and papular urticaria. La Niña has been associated with increases in the occurrence of varicella; hand, foot, and mouth disease; and Ross River virus (in certain areas), and decreases in viral warts and leishmaniasis.

 

 

Separately, global warming is expected to affect the start, duration, and intensity of the pollen season, and secondarily the rate of asthma exacerbations due to air pollution, respiratory infections, and/or cold air inhalation, with probable increases in eczema and other atopy-related conditions as well.

Vector-borne diseases

In the past year, the largest Ebola virus outbreak in West Africa has resulted in importation of the virus to other countries and secondary local transmission. Autochthonous transmission of Chikungunya virus has occurred in nonendemic areas, including Europe, the Caribbean, and the Americas. Zika virus has re-emerged in the Pacific with local transmission from imported cases. Climate change, deforestation, and changes in precipitation have been linked to variations in the geographical distribution of vectors of some infectious diseases (leishmaniasis, Lyme disease, and now Zika virus) by changing their spread. A warm and humid environment from global warming can also encourage the colonization of the skin by bacteria and fungi.

Finally, there is a wider, ecological dimension to consider. UV radiation impairs the molecular chemistry of photosynthesis both on land (terrestrial plants) and at sea (phytoplankton). This could affect world food production, at least marginally, and thus contribute to nutritional and health problems in food-insecure populations.

Another reason of many, but from a dermatologist’s point of view, to be mindful of taking care of the planet and our environment.

References

1. World Health Organization (WHO).

2. Photochem Photobiol Sci. 2002 May;1(5):324-6.

3. G Ital Dermatol Venereol. 2013 Feb;148(1):135-46.

4. Int J Dermatol. 2012 Jun;51(6):656-61.

5. Int J Dermatol. 2015 Dec;54(12):1343-51.

6. Curr Opin Infect Dis. 2015 Apr;28(2):139-50.

Dr. Wesley and Dr. Talakoub are co-contributors to this column. Dr. Talakoub is in private practice in McLean, Va. Dr. Wesley practices dermatology in Beverly Hills, Calif. This month’s column is by Dr. Wesley. Write to them at [email protected].

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