Formas clínicas do vitiligo em pacientes tratados no serviço de Dermatologia de centro de referência da cidade do Salvador (Bahia, Brasil)

Abstract

Background: Vitiligo is the most frequent acquired dyschromia. Its prevalence varies between 0,5% and 1%, and is characterized by skin lesions that turns non-pigmented. The clinical forms are diverse, and classified as non-segmental, segmental or undetermined vitiligo, and those with its subtypes. Objective: identify clinical forms and frequencies of vitiligo in patients attended at the Dermatology ambulatory from Complexo HUPES (Salvador, Bahia), associating those findings with autoimmune diseases. Methods: observational, descriptive, case series study, evolving subjects from 18 years old. Interviews and medical charts analysis were done in order to acquire clinical and demographic database. Vitiligo was evaluated according to criteria determined on “Vitiligo Global Issues Consensus Conference”. Results: Were included 31 patients with vitiligo; 27 (87,1%) of them females; the average age was 46,6 (±14,4). The mean “Vitiligo Area Scoring Índex” was 14,2 (±17,5); there was predominance of disease duration bigger than 10 years (61,3%). The most prevalent clinical form was the non-segmental generalized (77,4%); 51,6% presented less than 11,0% of affected body surface. In regards the occurence of vitiligo in concomitance with other autoimmune diseases, 25,8% had thyroiditis. Conclusion: The non-segmental generalized form had the highest prevalence (77,42%). Eight patients (25,8%) had at least one autoimmune disease, having at least one type of thyroiditis; those subjects are restricted to the groups of non-segmental generalized and universal forms.