无保护左主干冠状动脉狭窄支架置入术中的血管内超声表现

Intravascular ultrasound findings in stenting of unprotected left main coronary artery stenosis.

作者信息

Hong M K, Park S W, Lee C W, Kang D H, Song J K, Kim J J, Park S J, Hong M K, Mintz G S, Leon M B

机构信息

Department of Internal Medicine, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Korea.

出版信息

Am J Cardiol. 1998 Sep 1;82(5):670-3, A8. doi: 10.1016/s0002-9149(98)00408-1.

DOI:10.1016/s0002-9149(98)00408-1

PMID:9732900

Abstract

We evaluated the role of intravascular ultrasound (IVUS) in 16 patients with unprotected left main coronary artery (LMCA) stenting compared with 80 patients with other (non-LMCA) native coronary artery stenting and found that (1) additional high-pressure or larger size balloon dilations were more frequently performed in LMCA stenting than in non-LMCA stenting (p <0.05) and (2) after IVUS-guided stent implantation, minimum lumen area was > or = 9 mm2 in 88% of patients who underwent LMCA stenting and in 19% of those who underwent non-LMCA stenting (p <0.001). IVUS guidance may be a more important adjunctive imaging modality in the stenting of unprotected LMCA stenoses than in stenting of non-LMCA stenoses.

摘要

我们评估了血管内超声（IVUS）在16例无保护左主干冠状动脉（LMCA）支架置入患者中的作用，并与80例其他（非LMCA）自身冠状动脉支架置入患者进行了比较，发现：（1）与非LMCA支架置入相比，LMCA支架置入中更频繁地进行额外的高压或更大尺寸球囊扩张（p<0.05）；（2）在IVUS引导的支架植入后，接受LMCA支架置入的患者中有88%的最小管腔面积≥9 mm²，而接受非LMCA支架置入的患者中这一比例为19%（p<0.001）。IVUS引导在无保护LMCA狭窄支架置入中可能比在非LMCA狭窄支架置入中是一种更重要的辅助成像方式。