Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] · 2004
Intense pulsed light treatment of persistent facial hypermelanosis following drug-induced toxic epidermal necrolysis.
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Paquet Philippe, Piérard Gérald E
Аннотация
BACKGROUND: Cutaneous hyperpigmentation is one of the most cosmetically disturbing sequel of drug-induced toxic epidermal necrolysis. Intense pulsed light is a promising tool for treating some melanocytic lesions.
OBJECTIVE: The objective was to assess the effect of intense pulsed light in treating post-toxic epidermal necrolysis facial hypermelanosis.
METHODS: Two Caucasian men aged 35 and 50 years presented with long-standing (32 and 39 years) severe hypermelanosis of the face after sulfonamide-induced toxic epidermal necrolysis. They were treated by intense pulsed light. Cutoff filters of 550, 590, and 615 nm were employed for five intense pulsed light sessions at 4-week intervals. The treatment was characterized by energy fluence of 25 to 32 J/cm2, pulse width of 2.2 to 3.2 ms, and double- to triple-pulse mode respecting a 30-ms delay. Before intense pulsed light treatment, and 2 months after the fifth intense pulsed light session, clinical photographs and skin biopsies were performed in combination with quantitative narrow-band remittance spectrophotometry of melanin pigmentation. Patients were clinically followed-up for 8 months after the end of the treatment.
RESULTS: In both patients, clinical, histologic, and spectrophotometric assessments showed an average of 80% decrease in the hypermelanosis. No clinical recurrence of the hypermelanosis developed during the 8-month follow-up after intense pulsed light treatment. No major persistent side effects were experienced, especially hypopigmentation.
CONCLUSION: Intense pulsed light appears to be effective and safe for treating post-toxic epidermal necrolysis hypermelanosis in Caucasian patients.
OBJECTIVE: The objective was to assess the effect of intense pulsed light in treating post-toxic epidermal necrolysis facial hypermelanosis.
METHODS: Two Caucasian men aged 35 and 50 years presented with long-standing (32 and 39 years) severe hypermelanosis of the face after sulfonamide-induced toxic epidermal necrolysis. They were treated by intense pulsed light. Cutoff filters of 550, 590, and 615 nm were employed for five intense pulsed light sessions at 4-week intervals. The treatment was characterized by energy fluence of 25 to 32 J/cm2, pulse width of 2.2 to 3.2 ms, and double- to triple-pulse mode respecting a 30-ms delay. Before intense pulsed light treatment, and 2 months after the fifth intense pulsed light session, clinical photographs and skin biopsies were performed in combination with quantitative narrow-band remittance spectrophotometry of melanin pigmentation. Patients were clinically followed-up for 8 months after the end of the treatment.
RESULTS: In both patients, clinical, histologic, and spectrophotometric assessments showed an average of 80% decrease in the hypermelanosis. No clinical recurrence of the hypermelanosis developed during the 8-month follow-up after intense pulsed light treatment. No major persistent side effects were experienced, especially hypopigmentation.
CONCLUSION: Intense pulsed light appears to be effective and safe for treating post-toxic epidermal necrolysis hypermelanosis in Caucasian patients.