Quantitative assessment of coronary arterial diameter before and after coronary artery bypass grafting.
Quantitative assessment of coronary arterial diameter before and after coronary artery bypass grafting.
复制标题
冠状动脉旁路移植术前后冠状动脉直径的定量评估。
DOI：
10.1016/0002-9149(89)90516-x
复制
发表时间：
1989
期刊：
影响因子：
--
通讯作者：
Hillis,LD
中科院分区：
文献类型：
--
作者：
Cigarroa,RG;Lange,RA;Hillis,LD
由于冠状动脉旁路移植术的通畅性与动脉的大小有关，术前评估动脉直径是很重要的。然而，冠状动脉直径（通过血管造影术评估）和被侧支闭塞和填充的动脉的真实管腔大小之间的关系尚未完全表征。本研究旨在测量冠状动脉旁路移植术前后的管腔直径。26例患者（男20例，女6例，年龄34 ~ 72岁）在搭桥术前和术后1 ~ 35个月进行了冠状动脉造影。18支狭窄程度不明显的冠状动脉和24支冠状动脉前向血流充盈、搭桥的冠状动脉，其管腔直径与术前相似。而21支闭塞侧支血流充盈的冠状动脉，术后冠状动脉内径明显增大（P < 0.001）。因此，当冠状动脉被闭塞并被侧支填充时，其真实管腔尺寸始终被血管造影片低估。
Because coronary artery bypass graft patency is related to the size of the artery, a preoperative assessment of arterial diameter is important. However, the relation between coronary arterial diameter (assessed by angiography) and true luminal size of arteries that are occluded and filled by collaterals has not been completely characterized. This study was done to measure the luminal diameter of coronary arteries before and after bypass grafting. Twenty-six patients (20 men and 6 women, aged 34 to 72 years) had coronary angiography before and from 1 to 35 months after bypass surgery. Coronary arterial luminal diameter was similar before and after operation for the 18 insignificantly narrowed arteries and the 24 arteries with narrowings that filled by anterograde flow before operation and were bypassed. In contrast, in the 21 arteries that were occluded and filled by collateral flow, coronary arterial diameter was significantly larger (p < 0.001) after operation. Thus, when a coronary artery is occluded and filled by collaterals, its true luminal size is consistently underestimated by the angiogram.