Treatment and Classification of Nevus of Ota: A Seven-Year Review of a Single Institution's Experience
- Authors
- Nam, J.-H.[Nam, J.-H.]; Kim, H.-S.[ Kim, H.-S.]; Choi, Y.J.[ Choi, Y.J.]; Jung, H.J.[ Jung, H.J.]; Kim, W.-S.[Kim, W.-S.]
- Issue Date
- Aug-2017
- Publisher
- KOREAN DERMATOLOGICAL ASSOC
- Keywords
- Classification; Laser therapy; Nevus of ota; Pigmentation
- Citation
- ANNALS OF DERMATOLOGY, v.29, no.4, pp.446 - 453
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- ANNALS OF DERMATOLOGY
- Volume
- 29
- Number
- 4
- Start Page
- 446
- End Page
- 453
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/28029
- DOI
- 10.5021/ad.2017.29.4.446
- ISSN
- 1013-9087
- Abstract
- Background: Nevus of Ota (NO) is a relatively common pigmentary disorder in Asians. Tanino's classification is an old but tacit consensus to delineate the disease. Various treatment options have been presented. However, a few studies have been conducted on available laser options and current treatment strategies or the classification of NO. Objective: To investigate current laser options and their effectiveness for the treatment of NO, contributing factors to clinical outcomes, and verification of classification. Methods: A retrospective study of NO was conducted by reviewing medical charts and photographs of sixty-seven patients. Statistical analysis was used to compare excellent and poor outcomes and determine contributing factors. Results: The median age of onset was below the age of 1 (interquarti le range [IQR], 0 1). Tanino's and PUMCH classification systems failed to classify patients in 24 (35.8%) and 6 (9.0%) of patients, respectively. A 1,064 nm Q-switched Nd:YAG laser without additional lasers was used most frequently in 42 patients (62.7%). The frequency of treatment was 19.0 (IQR, 10.0 23.0) in the cured group defined as subjects showing 95% improvement or above, compared to 10.0 (IQR, 6.25-13.75) in the unattained group defined as subjects showing less than 95% improvement (p=0.001). Conclusion: A 1,064 nm Q-switched Nd:YAG laser is a reliable treatment armamentarium, functioning as a single infallible modality as well as a combination treatment modality for NO. Repetitive laser treatments without interruption seems to be the most suitable in clearing NO. The current classification systems of NO are defective. Thus, a new classification should be developed.
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- Appears in
Collections - Medicine > Department of Medicine > 1. Journal Articles
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