比较,发现BOHT的右心房压下降,临床效果明显优于SOHT。他们还证实[13],保留右心房的完整性,不但维持了心房的正常搏动,而且使它对心脏排出的作用得到保留,而受者的左心房后壁的保留使手术操作较TOHT简便,这样可缩短手术时间。有作者将BOHT与SOHT相比,发现供心缺血时间并没有因为分别吻合上、下腔静脉而明显延长。
由于受者的右心房及窦房结已被切除,因此左心房残余部分将无明显的节律性收缩,这部分组织将随着供心左心房的运动而出现被动的反常运动,尽管它不那么强烈,但对血流动力学的影响还是存在的。Deleuze等[14]比较BOHT和SOHT,发现尽管BOHT有不少方面优于SOHT,但二尖瓣返流的发生率无明显差别,这可能与保留受者的左心房后壁有关。
此外,由于BOHT中上、下腔静脉操作与TOHT相同,因此也存在插管困难的问题及术后发生上腔静脉狭窄。
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