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1986～1995年9月成功地进行了PBMV治疗800余例,对其中随访资料完整的160例进行了回顾性研究,着重研究了再狭窄率,远期疗效及影响因素。其中男55例,女105例,平均年龄38.9±8.9岁(15～68岁)。术后定期复查,全部资料经计算机统计处理,对影响远期疗效的因素,用COX风险模型作了分析。PBMV术后平均随访36±15个月(12～81个月),127例心功能持续改善。超声心动图测得的二尖瓣口面积,术前、术后及随访分别为1.15±0.2,2.15±0.4和1.92±0.4cm~2。26例(17％)发生了再狭窄,17例症状复发,9例无症状。研究结果显示,PBMV术后可保持较好的远期疗效,超声心动图记分,心功能,心律(有无房颤)和左房压为长期存活的独立预测因素
From 1986 to September 1995, more than 800 cases of PBMV were successfully treated. A retrospective study of 160 cases with complete follow-up data was conducted. The restenosis rate, long-term efficacy and influential factors were studied emphatically. There were 55 males and 105 females, with an average age of 38.9 ± 8.9 years (15-68 years). After regular review, all data were processed by computer, and the factors influencing the long-term efficacy were analyzed with COX risk model. After PBMV was followed up for an average of 36 ± 15 months (range, 12 to 81 months), heart function of 127 patients continued to improve. The mitral valve area measured by echocardiography was 1.15 ± 0.2, 2.15 ± 0.4 and 1.92 ± 0.4cm ~ 2.26 (17%) restenosis, respectively, and 17 Recurrence, 9 cases asymptomatic. The results show that PBMV can maintain good long-term efficacy, echocardiographic score, cardiac function, heart rate (with or without atrial fibrillation) and left atrial pressure as independent predictors of long-term survival