经皮二尖瓣球囊扩张术远期疗效的临床和超声评价

Chinical and echocardiographic evaluation of long-term outcome afterpercutaneous balloon mitral valvuloplasty

对经皮二尖瓣球囊扩张术（ＰＢＭＶ）１３１例患者中的７８例进行了临床和超声随访平均２５个月。结果：心功能Ⅰ或Ⅱ级占９６．２％，心血管事件发生率为２．６％；ＰＢＭＶ术后二尖瓣口面积较术前明显扩大，随访时二尖瓣口面积较术后略缩小；二尖瓣再狭窄率为５％。上述结果表明绝大部分（＞９０％）ＰＢＭＶ患者的远期疗效在解剖和功能上均保持改善，超声评价辅以临床观察可较全面的反映ＰＢＭＶ的远期疗效。

of the l3l patients who underwent percutaneous balloon mitral valvotomy(PBMV)encoun-tered late clnical and echocardiographic follow-up. The results showed that during follow-up 96. 2%of thepatients remained in heart functional class Ⅰor class Ⅱ The cardiovascular event rate was 2.6%.The mi-tral valve area determined by echocardiography(2-dimensional and Doppler) increased significantly frompre-PBMV to immediate post-PBMV(p=0. 0001),and then there was a slight decrease in the mitral valvearea at the follow-up(P<0. 001),but the mitral valve area was significantly larger at follow-up than atpre-PBMV(P=0. 0001 ). The restenosis rate was 5%. It is suggested that PBMV provided sustainedanatomical and functional improvement for over 90%of patients at follow-up. Echocardiographic evaluationaccompanied with clinic observation can reliably reveal the long-term outcome of PBMV.