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Dermatoplastics
Author(s) -
Ho Lung Henry Chan,
Syn Shek,
Chao Yu,
CK Yeung,
Toru Kono,
Dieter Manstein
Publication year - 2006
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/lsm.20313
Subject(s) - citation , medicine , library science , computer science
This journal suppl. entitled: Supplement: American Society for Laser Medicine and Surgery, Twenty-Sixth Annual Meeting, Boston, Massachusetts, April 5–April 9, 2006Session: DermatoplasticsBACKGROUND: Fractional resurfacing is a new concept of skin rejuvenation whereby zones of micro thermal injury in the skin are generated by the use of an infra-red laser. The risk and prevalence of hyperpigmentation in dark-skinned patients have not been studied. OBJECTIVE: To assess the prevalence and risk factor of post-inflammatory hyperpigmentation associated with the use of fractional resurfacing in Chinese. METHOD: A retrospective study of 34 Chinese patients treated with fractional resurfacing for acne scarring, skin rejuvenation and pigmentation were studied. NO cooling was used. All cases had pre- and post-treatment clinical photographs taken by the Canfield CR system. 2 independent observers assessed the photographs. A prospective study using 9 different density and energy treated on the forearm of 18 volunteers. Clinical photographs and spectrophotometer reading were assessed pre- and post-treatment.
RESULT: 117 treatment sessions were performed. Patients treated with high energy but low density (16 mJ, 1000 MTZ) has a lower prevalence of PIH (7% vs 11%) than those treated with a low energy but high density (8 mJ, 2000 MTZ). Prospective forearm study confirmed the importance of low density in the determination of PIH in Chinese. CONCLUSION: Cooling and reduced density are important parameters in reducing the risk of PIH in Chinese in the treatment of fractional resurfacing