We sought to identify short- and long-term changes in postoperative left ventricular systolic function in patients with rheumatic heart disease (RHD) who underwent combined aortic and mitral valve replacement.

中文翻译：

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风湿性心脏病患者联合二尖瓣和主动脉瓣置换术后左心室收缩功能的变化

我们试图确定接受主动脉瓣和二尖瓣联合置换术的风湿性心脏病 (RHD) 患者术后左心室收缩功能的短期和长期变化。