Resumen

ESTEVEZ DEL TORO, Miguel et al. Survival of Cuban patients with systemic erythematous lupus: influence of the initial characteristics of the disease. Rev cubana med [online]. 2008, vol.47, n.3, pp. 0-0. ISSN 1561-302X.

Introduction: The systemic erythematous lupus (SEL) is an autoimmune disase with an elevated risk for developing complications. Objective: To know the survival rates, prognostic factors according to the characteristics present at the onset of the disease and causes of death of the patients with SEL. Methods: A cohort of 244 patients with diagnosis of SEL that received attention at the Rheumatology Service of "Hermanos Ameijeiras" Hospital from September 1991 to August 2006 were studied. Sociodemographic, clinical, lab and histological characteristics observed at the onset of the disease were collected. A statistical analysis was made to relate them to survival. The causes of death according to clinical data and to the postmortem examination were determined, and survival was estimated in accordance with the diagnosis and the last notice date by Kaplan-Meier's method. Results: 34 of the 244 patients died. The most common cause of death was infection in 32.3 % of the cases. The survival rates at 5, 10 and 15 years were 93, 82.5 and 70 %, respectively. The variables associated with a lower survival were thrombocytopenia (p=0.005), elevated antiDNA (p=0.037), low C3 fraction (p=0.000), low C4 fraction (p=0.000), Addis at 2 h altered (p=0.004), proteinuria over 0.5 g (p=0.024), elevated creatinin (p=0.000) and reduced glomerular filtrate (p=0.000). The independent factors associated with low survival were thrombocytopenia, low complement C3 fraction and elevated serum creatinin. Conclusions: the survival of Cuban patients with SEL at 5 years is similar to the one reported by diverse studies conducted in developed countries. The variables associated with low survival depend on the own characteristics of the disease.

Palabras clave : Systemic erythematous lupus; survival.

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