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近年来．氧自由基在生物体系中的作用已引起人们越来越广泛的重视．成为重要的研究课题。本文通过检测肺心病并发多系统脏器衰竭（MSOF）患者血清中超氧化物歧化酶（SOD）和丙二醛（MDA）的水平的变化．探讨其在肺心病并发MSOF中的作用以及与预后的关系。临床资料与方法1．研究
In recent years. The role of oxygen free radicals in biological systems has drawn more and more attention. Become an important research topic. This article examines the changes of serum superoxide dismutase (SOD) and malondialdehyde (MDA) levels in patients with cor pulmonale complicated by multiple organ failure (MSOF). To explore its role in pulmonary heart disease complicated with MSOF and its relationship with prognosis. Clinical data and methods 1. the study