RESUMEN
BACKGROUND: Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are rare and potentially life-threatening mucocutaneous reactions. Given their rarity, limited cohort studies have been done. The aim of this study is to evaluate and compare the demographics, etiology, management, clinical and laboratory characteristics, complications, and outcome of SJS/TEN patients seen by the inpatient dermatology service at the University of Puerto Rico. METHODS: A retrospective review of 30 cases with identified diagnosis of SJS, overlap SJS/TEN, or TEN who were consulted to the Dermatology Department of the University of Puerto Rico from 2006 to 2017. RESULTS: A total of 24 adult and six pediatric cases were reviewed. Females were predominant with a female to male ratio of 1.3 : 1. The most frequent offending drugs identified were antibiotics (56.7%), anticonvulsants (23.3%), and nonsteroidal anti-inflammatory drugs (NSAIDs) (16.7%) with the most frequent antibiotic identified being trimethoprim/sulfamethoxazole (23.3%). Seventy percent of patients experienced at least one complication, most often of infectious etiology (80.1%). During hospital course, 73% received pharmacologic therapy (23% received IVIG alone, 17% received steroids alone, and 33% both) versus 27% which received only supportive care. Mortality rate in this study was 13.8%. When comparing SCORTEN at day one of admission, deceased cases had a mean SCORTEN at day 1 of 4.0, while survivors had an average of 1.54 (P < 0.001). CONCLUSION: Antibiotics followed by anticonvulsants were the most frequently offending drugs identified within this study.
Asunto(s)
Antibacterianos/efectos adversos , Antiinflamatorios no Esteroideos/efectos adversos , Anticonvulsivantes/efectos adversos , Síndrome de Stevens-Johnson/etiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Femenino , Mortalidad Hospitalaria , Humanos , Inmunoglobulinas Intravenosas/uso terapéutico , Masculino , Persona de Mediana Edad , Cuidados Paliativos/métodos , Puerto Rico , Estudios Retrospectivos , Medición de Riesgo , Índice de Severidad de la Enfermedad , Síndrome de Stevens-Johnson/diagnóstico , Síndrome de Stevens-Johnson/mortalidad , Síndrome de Stevens-Johnson/terapia , Adulto JovenRESUMEN
Pigmented lesions of the nail unit are commonly encountered in the clinical setting. Yet, they often present a unique challenge to clinicians because of a broad differential diagnosis or unfamiliarity with clinical and histopathologic features. A wide variety of causes exist ranging from benign lesions such as subungual hemorrhage to malignant lesions such as subungual melanoma. Identifying the underlying cause is key to appropriate management and follow-up in these patients. Although emerging clinical tools such as dermoscopy can be very useful in evaluation of these lesions, histopathologic analysis remains the gold standard. In this review, we discuss and provide a summary of important clinical and histopathological concepts of pigmented lesions of the nail unit with special focus on longitudinal melanonychia, melanotic macule, melanocytic nevus, subungual melanoma, along with discussion of some nonmelanocytic lesions.