左房顶在主动脉根部扩大成形术中的止血作用

目的：探讨在细小主动脉根部扩大成形术中一种手术止血的方法和结果。方法：11例主动脉根部扩大成形术均切开左房项，利用带垫片主动脉瓣膜缝线先穿过左房切口边缘闭合左房切口，再将邻近的左房壁向上折叠缝合于人工瓣膜水平上方的主动脉壁及人工血管补片上，覆盖并压迫主动脉根部的扩大成形切口。结果：11倒患者术中、术后均未发生出血，无手术死亡及术后心包积液，1个月后超声心动图检查，未发现主动脉瓣下有左心室向左心房分流现象。结论：在主动脉根部扩大成形术中，将左房壁向上折叠缝合覆盖并压迫主动脉根部的扩大成形切口对防止主动脉根部出血具有比较可靠的止血效果。

Hemostasis function of the left atrium of enlargement annulus in small aortic root

Objective To study one kind of surgical procedures and the results of surgical hemostasis at enlargement annulus in small aortic root.Methods Eleven patients received small aortic annulus enlarging.After the roof of left atrium was divided,the incision was stitched with the aortic valve suture and a prosthetic patch through the lip of the left artrium.The neighborhood left artrium wall was folded upward,and stitched to aortic wall and the prosthetic patch over the prosthetic valve.The enlargement annulus was covered and pressed in small aortic root.Results There was no operative and postoperative bleeding,no operative death and postoperative pericardial effusion.Ultrasound cardiograhy(1 month later) showed no shunt from the left ventricle to the left artrium below the aortic valve.Conclusion In enlargement annulus in small aortic root,it is a safe and effective method for preventing aortic root bleeding to fold up left artrium wall,to cover and press on the enlargement annulus in small aortic root.