Yaku Hitoshi, Ohira Suguru, Yamazaki Sachiko, Doi Kiyoshi, Kawajiri Hidetake, Morimoto Kazuki, Numata Satoshi
Department of Cardiovascular Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Interact Cardiovasc Thorac Surg. 2017 Mar 1;24(3):460-461. doi: 10.1093/icvts/ivw396.
We report a novel method of surgical ventricular restoration for an infarcted lateral wall: the endocardial linear infarct exclusion technique. First, transmural ventriculotomy is performed at the centre of the scar longitudinally along the coronary artery. Second, the inner layer is sutured in a longitudinal direction with 4-0 polypropylene continuous sutures to approximate the border between the normal and infarcted myocardium. Finally, the outer layer is closed with a combination of interrupted buttress and continuous over-and-over sutures with outer felt reinforcement. The advantages of endocardial linear infarct exclusion technique are as follows: the risk of bleeding is low; it is not technically demanding and is reproducible; the coronary artery can be preserved; approximation of the base of the anterior and posterior papillary muscles is possible in the case of ischaemic mitral regurgitation and it can also be applied to the anterior and inferior walls.
心内膜线性梗死排除技术。首先,在瘢痕中心沿冠状动脉纵向进行透壁心室切开术。其次,用4-0聚丙烯连续缝线纵向缝合内层,以使正常心肌与梗死心肌之间的边界靠近。最后,外层用间断支撑缝线和连续锁边缝线联合外层毡片加固进行缝合。心内膜线性梗死排除技术的优点如下:出血风险低;技术要求不高且可重复;可保留冠状动脉;对于缺血性二尖瓣反流,有可能使前后乳头肌基部靠近,并且该技术还可应用于前壁和下壁。