Características diferenciales entre espondilitis anquilosante pura y espondilitis psoriásica en pacientes argentinos

El compromiso axial, caracteristico de la Espondilitis Anquilosante (EA), puede tambien presentarse en pacientes con diagnostico de Artritis Psoriasica (APs). El objetivo del presente estudio fue describir las caracteristicas diferenciales de pacientes con diagnostico de EA pura comparados con los pacientes con APs y compromiso axial asociado, ingresados en el Registro Iberoamericano de Espondiloartropatias (SpA) (RESPONDIA-Argentina). Pacientes y metodos: Se seleccionaron aquellos pacientes que cumplian criterios de Nueva York modificados, pertenecientes a la cohorte prospectiva, observacional y multicentrica de SpA en Argentina (RESPONDIA-Argentina), que acudieron a la consulta ambulatoria entre junio y diciembre del 2006. Los datos fueron extraidos online de la base REGISPONSER. Se recolectaron datos de actividad de la enfermedad, status funcional, caracteristicas clinicas y radiologicas, tratamiento y calidad de vida, mediante herramientas validadas.Analisis estadistico: Para la comparacion de datos categoricos se utilizo el Test de Chi Cuadrado o Test Exacto de Fisher y para las variables continuas el Test de Student y Test de Mann-Whitney. Se considero significativa una p Axial involvement, characteristic feature of Ankylosing Spondylitis(AS), can also be present in patients with Psoriatic Arthritis (PsA).Purpose: To describe differential characteristics of the axial involvementin AS as compared with that seen in PsA patients. Patients and methods: Consecutive Spondyloarthritis (SpA) patients attending ambulatory care in 11 rheumatology services locatedin 6 different Argentine provinces between June and December2006 were enrolled. Patients were diagnosed in accordance to the classification criteria of the European Spondyloarhtropathy Study Group (ESSG), and were included in a prospective, observational and multi-centre cohort of SpA in Argentina (RESPONDIAArgentina). Data were collected, transmitted on-line and stored in the Spanish SpA Registry (REGISPONSER) website. Demographic,disease activity and functional status, clinical forms, treatment and quality of life data were collected by means of validated tools. For this analysis, patients were selected only if they met modified New York criteria for AS.Statistical analysis: Categorical...