关键词: 二尖瓣疾病, 微创, 胸腔镜辅助, 外科手术

Abstract: Objective To investigate the surgical efficacy and skill of video-assisted thoracic surgery for mitral valve disease. Methods Nineteen patients with mitral valve disease were randomly selected and treated by video-assisted thoracoscopic approach in our hospital from November 2020 to November 2021, including 7 males and 12 females. The age range was 24-76 years, with an average of 55 years. Preoperative echocardiography showed mitral insufficiency in 13 cases, including 12 cases of severe mitral insufficiency and 1 case of moderate mitral insufficiency. There were 6 cases of mitral stenosis with insufficiency, including 5 cases of severe mitral stenosis and 1 case of moderate mitral stenosis. All cases were established cardiopulmonary bypass using superior vena cava and femoral arteriovenous cannulation under general anesthesia. Mitral surgery was performed with the assistance of video-assisted thoracoscopy, in which 17 patients underwent mitral valve replacement and 2 patients underwent mitral valvuloplasty.Results All the 19 cases were successful, and no one was converted to open surgery. The operation time ranged from 4.45 h to 10.45 h, with an average of 6.9 h; The postoperative hospital stay ranged from 8 days to 20 days, with an average of 14 days. The patients were followed up for 1 month.The volume of left atrium and left ventricular end diastolic volume were significantly reduced （P < 0.05）, and cardiac function （NYHA grade） and quality of life （Minnesota Heart Failure Quality of life questionnaire） were significantly improved. Conclusion Video-assisted thoracic surgery for mitral valve disease is less trauma but considerable safety, curative efficacy, and it will become the main cardiac surgical modality in the near future.

Key words: mitral valve disease, minimally invasive, video assisted thoracoscopy, surgical operation