Más allá de dos enfermedades: Revelando las realidades clínicas únicas del síndrome de superposición de esclerosis sistémica y lupus eritematoso sistémico

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Rebeca Rebouças Pereira
Thelma Larocca Skare
Patricia Martin

Keywords

Esclerodermia Sistémica, Lupus Eritematoso Sistémico, Enfermedades del colágeno

Resumen

Introducción: La esclerosis sistémica (ES) y el lupus erite- matoso sistémico (LES) son enfermedades autoinmunes crónicas del tejido conectivo. Su coexistencia, denominada síndrome de superposición ES-LES (SSP), configura un cuadro clínico complejo y poco estudiado, especialmente en poblaciones brasileñas. El ob­jetivo de este estudio fue caracterizar y comparar el perfil clínico de pacientes con ES, LES y SSP. Métodos: Se realizó un estudio retrospectivo, observacional y transversal, basado en la revisión de historias clínicas de un servicio de reumatología. Se incluyeron 103 pacientes: 44 con ES, 39 con LES y 20 con SSP, siguiendo los criterios ACR/EULAR 2013 para ES y 2019 para LES. Se analiza­ron datos demográficos, clínicos, laboratoriales e imagenológicos. Resultados: Los pacientes con LES fueron diagnosticados a menor edad (32,8 años) que los de ES (47,7 años), con valores intermedios en SSP (35,2 años). Predominaron mujeres y afrodescendientes en SSP (52,6%). El fenómeno de Raynaud fue universal en SSP (100%), y la enfermedad pulmonar intersticial más frecuente en ES (75%) y SSP (50%). El anti-U1RNP fue positivo en 70% de SSP, y la linfopenia afectó al 95%. Conclusión: El SSP representa una entidad clínica singular, con combinación de manifestaciones pulmonares y articulares, heterogeneidad serológica y predominio en mujeres jóvenes afrodescendientes.

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