Periodicidad semestral: flujo continuo.
ISSN - Electrónico: 2661-6947 / DOI: 10.36015 • LILACS BIREME (19784); LATINDEX (20666)
INTRODUCTION. The overlap syndrome in patients with systemic lupus erythematosus has not been characterized in our country. OBJECTIVE. To quantify the prevalence of overlap syndrome in patients with systemic lupus erythematosus, to analyze risk factors and characterize pure and overlapping patients. MATERIALS AND METHODS. Study observational, analytical prevalence, with population of 324 and a sample of 308 patients who met the inclusion inclusion criteria for a definitive diagnosis of systemic lupus erythematosus, of whom 118 had overlap syndrome and 190 were pure lupus, in the external consultation of the Rheumatology Technical Unit of the Carlos Andrade Marín Specialties Hospital between January 2015 and April 2018. RESULTS. The overall prevalence of overlap was 38,30% (118; 308), 43,20% (51; 118) presented lupus erythematosus systemic with antiphospholipid antibody syndrome. It was found that patients with overlap syndrome presented a higher diagnostic percentage in women, older than the finding of systemic lupus erythematosus, greater joint and skin manifestations; and higher percentages of anti-DNA positivy and hypocomplementemia at the diagnosis of lupus systemic erythematosus (p<0,05). However, they presented fewer complications such as kidney disease lupus, hematological and neuropsychiatric disorders (p <0.05). The Odds ratio of prevalence established that the early age at diagnosis of systemic lupus erythematosus, less than 50 years, [RMP = 0.51 IC 95% (0.26-0.98)] and lupus nephropathy [RMP = 0 , 45 IC 95% (0.23-0.86)] constituted protective factors for the development of overlap syndrome. CONCLUSION. Overlap syndrome was quantified as high frequency in patients with systemic lupus erythematosus and of similar prevalence in international studies. Age, sex were relevant factors for timely diagnosis at early ages, which did not change mortality with less occurrence of renal and extrarenal complications.
The authors who publish in this journal accept the following conditions:
1. The authors retain the copyright and grant to the CAMbios MEDICAL-SCIENTIFIC JOURNAL HECAM the right of the first publication, with the work registered with the Creative Commons attribution license, which allows third parties to use the published material provided that they mention the authorship of the work and the first publication in this journal.
2. Authors can make other independent and additional contractual agreements for the non-exclusive distribution of the version of the article published in this journal (for example, include it in an institutional repository or publish it in a book) as long as it clearly indicates that the work was published. for the first time in the CAMbios MEDICAL-SCIENTIFIC JOURNAL HECAM.