Brown spiders (Loxosceles) are taking hold in Pernambuco, Brazil: a case series, 2018-2022.

OBJECTIVE: To describe accidents involving brown spider (genus Loxosceles) bites notified by the Pernambuco Poison Information and Care Center (CIATox-PE), Brazil, from January 2018 to December 2022. METHODS: This was a case series study of brown spider bites notified by the CIATox-PE. RESULTS: The study included 22 cases with median age of 35 years, the majority being female (13); the cases occurred in rural and urban areas (12 versus 10), at night (10); Petrolina was the municipality with the highest number of notifications (6); spider bites occurred mainly in the lower (11) and upper (9) limbs, almost exclusively inside households (21); specific serum therapy was not indicated for 8 cases because the time for its effectiveness had already elapsed. CONCLUSION: Loxoscelism cases occurred more frequently in females, in both rural and urban areas and mainly at home, with delays in seeking medical care. MAIN RESULTS: The 22 cases described represent an alert for the presence of a venomous species not reported in previous studies in Pernambuco. The severity of cases may be associated with delays in seeking medical care, especially due to the population's lack of information. IMPLICATIONS FOR SERVICES: Identify the presence of brown spiders in households in the region and the potential severity of poisonings. Alert health professionals to recognize the clinical picture with a view to appropriate early treatment. PERSPECTIVES: Develop research on poisoning by venomous animals and educational actions alerting the population to prevent these accidents and updating health professionals on care.

Brown spiders (Loxosceles) are taking hold in Pernambuco, Brazil: a case series, 2018-2022 / Las arañas marrones (Loxosceles) están instalándose en Pernambuco, Brasil: serie de casos, 2018-2022 / As aranhas-marrons (Loxosceles) estão se estabelecendo em Pernambuco: série de casos, 2018-2022

ABSTRACT Objective To describe accidents involving brown spider (genus Loxosceles) bites notified by the Pernambuco Poison Information and Care Center (CIATox-PE), Brazil, from January 2018 to December 2022. Methods This was a case series study of brown spider bites notified by the CIATox-PE. Results The study included 22 cases with median age of 35 years, the majority being female (13); the cases occurred in rural and urban areas (12 versus 10), at night (10); Petrolina was the municipality with the highest number of notifications (6); spider bites occurred mainly in the lower (11) and upper (9) limbs, almost exclusively inside households (21); specific serum therapy was not indicated for 8 cases because the time for its effectiveness had already elapsed. Conclusion Loxoscelism cases occurred more frequently in females, in both rural and urban areas and mainly at home, with delays in seeking medical care.

RESUMEN Objetivo Describir accidentes causados ​​por arañas pardas (género Loxosceles) notificados por el Centro de Información de Asistencia Toxicológica de Pernambuco (CIATox-PE), Brasil, de enero de 2018 a diciembre de 2022. Métodos Reporte de 22 casos notificados de CIATox-PE. Resultados Casos con media de idade de 35 años, predominio femenino (13); los casos ocurrieron en área rural/urbana (12 versus 10), por la noche (10); Petrolina fue el municipio con más notificaciones (6); las picaduras fueron principalmente en los miembros inferiores (11) y superiores (9), casi exclusivamente en el interior de las viviendas (21); en 8 de los casos no se indicó sueroterapia específica por haber superado el tiempo de efecto. Conclusión Los casos de loxoscelismo ocurrieron con mayor frecuencia en el sexo femenino, en áreas rurales y urbanas, y principalmente en el hogar, con demoras en la búsqueda de atención médica.

RESUMO Objetivo Descrever os acidentes por picada de aranhas-marrons (gênero Loxosceles), notificados no Centro de Informação de Assistência Toxicológica de Pernambuco (CIATox-PE), Brasil, no período de 2018 a 2022. Métodos Estudo de série, sobre casos notificados no CIATox-PE. Resultados Foram incluídos 22 casos com mediana de idade de 35 anos e houve predomínio do sexo feminino (13); os casos ocorreram nas zonas rural e urbana (12 versus 10), durante a noite (10), e Petrolina foi o município com mais notificações (6); as picadas ocorreram, principalmente, nos membros inferiores (11) e superiores (9), quase exclusivamente dentro das residências (21); para 8 acidentados, não se prescreveu soroterapia específica por terem ultrapassado o tempo de efetividade. Conclusão Os casos de loxoscelismo ocorreram com maior frequência no sexo feminino, nas zonas rural e urbana indiferentemente, quase todos foram intradomiciliares e houve demora na procura por atendimento médico.