RESUMO

Com a finalidade de determinar os principais fatores de risco para a morbidade e mortalidade hospitalar de pacientes coronarianos idosos (idade > 65 anos), submetidos a revascularização isolada, eletiva do miocárdio, estudamos prospectivamente 72 pacientes consecutivos, que possuíam observações completas no InCór, no período compreendido entre janeiro e dezembro de 1988. No roteiro do protocolo foram incluídos fatores clínicos, radiológicos, hemodinâmicos, operatórios e de pós-operatórios (Tabela 1). Os resultados foram analisados utilizando-se o teste do Qui quadrado de Pearson e a Prova Exata de Fisher, através do SPSS (Statistical Package for Social Science). Dentre os fatores analisados, apresentaram significância estatística: o tabagismo, o número de vasos coronários acometidos, o tempo de duração da circulação extracorpórea, o tempo de pinçamento da aorta, o número total de enxertos realizados, a presença de anastomose mamária coronária e o índice de movimentação da parede ventricular esquerda.

ABSTRACT

Seventy-two consecutive patients with complete observations were studied at the Heart Institute (InCór) between January and December 1988, to determine the main risk factors of nosocomial morbidity and mortality of elderly coronary patients (>65 years) submitted to elective isolated myocardial revascularization. Clinical, radiologic, hemodynamic, operative and post-operative factors were included in the protocol. The results were analysed through Pearson's X2 test and Fisher's Exact Test using the SPSS (Statistical Package for Social Science). Among the analyzed factors, smoking habit, number of impaired coronary vessels, duration of extracorporeal circulation, time of aortic clamping, total number of performed grafts, presence of the coronary-mammary anastomisis and index of the left ventricular wall movement present statistical significance.

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Article receive on domingo, 1 de dezembro de 1991