For decades, coronary patients whose arteries had been narrowed by accumulated plaque underwent open-heart surgery; a section of healthy artery or vein was sewn in as a bypass around the compromised vessel.
For decades, coronary patients whose arteries had been narrowed by accumulated plaque underwent open-heart surgery; a section of healthy artery or vein was sewn in as a bypass around the compromised vessel.
几十年来，冠状动脉疾病（动脉因累积粥状硬化斑而变得狭窄）的患者得接受心脏手术，将健康的动脉或静脉血管缝在堵塞血管的附近，做为血液的分流通道。