Resumen

MORLANS HERNANDEZ, Karel et al. Factores de riesgo y evaluación del riesgo de muerte hospitalaria en la sustitución valvular mitral con prótesis mecánica. Rev Cubana Cir [online]. 2003, vol.42, n.2, pp. 0-0. ISSN 1561-2945.

A prospective study was conducted among 1 301 patients who underwent valvular mitral replacement at the Institute of Cardiology and Cardiovascular Surgery from January, 1996, to May, 2001, aimed at knowing the operative mortality and to establish the bases of a mortality risk scoring system. The relative risk and the death probabilities were determined. The hospital mortality was 9.0 % (27 patients). The most frequent cause of death was multiple organ failure (14 patients, 51.8 %) The most important risk factors were: in the preoperative, severe cardiomegaly (RR 6.1) and emergency surgery (RR 5.1); in the transoperative, low cardiac output (RR 6.0); and in the postoperative, neurological dysfunction (RR 33.6) and multiple organ failure (RR 26.9). Operative mortality was acceptable. The death risk scoring system is feasible and it should be automated and validated

Palabras clave : VALVULA MITRAL [cirugía]; CIRUGIA TORACICA [mortalidad]; COMPLICACIONES POSTOPERATORIAS [mortalidad]; MORTALIDAD HOSPITALARIA; FACTORES DE RIESGO; IMPLANTACION DE PROTESIS DE VALVULAS CARDIACAS [mortalidad]; ISQUEMIA MIOCARDICA.