Seguimiento de la actividad clínica y del daño orgánico acumulado en una cohorte de pacientes con lupus eritematoso sistémico de la península de Yucatán, México (1995-2016) / Follow-up of clinical activity and accumulated organic damage in a cohort of patients with Systemic Lupus Erythematosus from the Yucatán peninsula, México (1995-2016)

Introducción: El lupus eritematoso sistémico (LES) es una enfermedad autoinmune con severidad variable, frecuente en individuos hispanos y afroamericanos. Objetivo: Conocer la actividad clínica y el daño acumulado, así como la prevalencia e incidencia, en una cohorte dinámica de pacientes con LES de la península de Yucatán (1995 a 2016). Pacientes y métodos: Se analizaron 200 pacientes con LES, beneficiarios del servicio médico del Hospital Regional ISSSTE de Mérida, Yucatán, durante 22 años. Se evaluó la actividad de la enfermedad y el daño acumulado mediante la escala MEX-SLEDAI y SLICC-ACR-DI, respectivamente, y su correlación con variables clínicas y demográficas. Resultados: Se analizaron 185 pacientes mujeres y 15 hombres. Los índices promedio de actividad y daño acumulado durante el seguimiento fueron de 4,63 y 1,10, respectivamente. El índice de actividad se observó significativamente menor en las mujeres respecto de los hombres (4,36 vs. 7,43), y el daño acumulado no presentó diferencia por sexo. Las manifestaciones asociadas con mayor actividad fueron las mucocutáneas y articulares, y los órganos con mayor daño acumulado el musculoesquelético, el neurológico y el gonadal. Se encontró relación de los índices con el tiempo de evolución, las remisiones/reactivaciones y la actividad persistente. La mortalidad se relacionó con actividad persistente por complicaciones vasculares sistémicas e insuficiencia renal y hepática. La incidencia y prevalencia anual del LES calculada fue de 2,86% y 48,43% en la península de Yucatán. Conclusiones: Los pacientes presentaron actividad persistente, con reactivaciones leves a moderadas y daño acumulado más agresivo en hombres. La actividad clínica disminuye e incrementa el daño acumulado a mayor tiempo de evolución, con menor afección renal y mayor sobrevida, lo que sugiere un curso más benigno en la población de la península de Yucatán.(AU)

IntroductionSystemic lupus erythematosus (SLE) is an autoimmune with variable severity, common in Hispanic and African-American individuals.Objective: To know the clinical activity and the accumulated damage, as well as the prevalence and incidence, in a dynamic cohort of patients with SLE from the Yucatan Peninsula (1995-2016). Patients and methods: A cohort of 200 patients with SLE, medical service beneficiaries of the ISSSTE Regional Hospital of Mérida, Yucatán, was analyzed for 22 years. Disease activity and accumulated damage were evaluated using the MEX-SLEDAI scale and the SLICC-ACR-DI, respectively, and its correlation with clinical and demographic variables. Results: 185 female and 15 male patients were analyzed. Average accumulated damage and activity indices during follow-up were 4.63 and 1.10, respectively. The activity index was significantly lower in females compared to males (4.36 vs 7.43), and the accumulated damage did not present a difference by sex. The manifestations associated with greater activity were the mucocutaneous and articular ones, and the organs with the greatest accumulated damage were the musculoskeletal, neurological and gonadal. A relationship between the indices was found with the evolution time, remissions / reactivations, and persistent activity. Mortality was related to persistent activity due to systemic vascular complications and kidney and liver failure. The annual incidence and prevalence of SLE calculated was 2.86% and 48.43% in Yucatán Peninsula. Conclusions: The patients presented persistent activity, with mild to moderate reactivations, and accumulated damage more aggressive in men. The clinical activity decreases and increases the accumulated damage at a longer evolution time, with less kidney disease and greater survival, which suggests a more benign course in the population of the Yucatan Peninsula.(AU)

Follow-up of clinical activity and accumulated organic damage in a cohort of patients with systemic lupus erythematosus from the Yucatán Peninsula, Mexico (1995-2016).

INTRODUCTION: Systemic lupus erythematosus (SLE) is an autoimmune with variable severity, common in Hispanic and African-American individuals. OBJECTIVE: To know the clinical activity and the accumulated damage, as well as the prevalence and incidence, in a dynamic cohort of patients with SLE from the Yucatan Peninsula (1995-2016). PATIENTS AND METHODS: A cohort of 200 patients with SLE, medical service beneficiaries of the ISSSTE Regional Hospital of Mérida, Yucatán, was analysed for 22 years. Disease activity and accumulated damage were evaluated using the MEX-SLEDAI scale and the SLICC-ACR-DI, respectively, and its correlation with clinical and demographic variables. RESULTS: 185 female and 15 male patients were analysed. Average accumulated damage and activity indices during follow-up were 4.63 and 1.10, respectively. The activity index was significantly lower in females compared to males (4.36 vs 7.43), and the accumulated damage did not present a difference by sex. The manifestations associated with greater activity were the mucocutaneous and articular ones, and the organs with the greatest accumulated damage were the musculoskeletal, neurological and gonadal. A relationship between the indices was found with the evolution time, remissions/reactivations, and persistent activity. Mortality was related to persistent activity due to systemic vascular complications and kidney and liver failure. The annual incidence and prevalence of SLE calculated was 2.86% and 48.43% in Yucatán Peninsula. CONCLUSIONS: The patients presented persistent activity, with mild to moderate reactivations, and accumulated damage more aggressive in men. The clinical activity decreases and increases the accumulated damage at a longer evolution time, with less kidney disease and greater survival, which suggests a more benign course in the population of the Yucatan Peninsula.