冠状动脉室间隔支影像学变异及其临床意义

Variation and clinical significance of interventricular septal branches of coronary artery on angiography

目的:总结冠状动脉室间隔支的影像学特征并探讨其临床意义。方法:从200例冠脉造影正常而具有某些冠心病危险因素的患者、76例肥厚梗阻型心肌病和28例冠心病冠状动脉造影显示右冠状动脉慢性闭塞患者的室间隔支动脉数量、粗细、分布等特点进行分类、相互间比较。结果:肥厚性梗阻型心肌病、冠心病右冠脉慢性闭塞病变(CTO)患者与冠状动脉造影正常患者的室间隔支动脉显影形态无显著性差异;3种疾病之间的室间隔动脉分类中Ⅰ型均占绝对多数(P<0.05,P<0.01)。结论:不同心血管疾病的冠状动脉室间隔支形态、大小、粗细等影像特征相似,可作为右冠状动脉CTO逆行开通的良好途径和肥厚梗阻型心肌病心肌化学消融的靶血管。

AIM： To summarize imaging features of interventricular septal branches of coronary artery and to explore their clinical significance. METHODS： We classified and compared the imaging features of interventricular septal branches （ including numbers, dimensions and distribution） from 200 cases of normal coronary angiography with some risk factors of coronary heart diseases, 76 cases of hypertrophic obstructive cardiomyopathy （HOCM） and 28 cases of coronary heart diseases with right coronary chronic total occlusion （CTO）. RESULTS： No significant differences were observed in the imaging features of interventricular septal branches between normal cases and cases of HOCM or right CTO, and Type I was the most common （P 〈0. 05, P 〈0. 01 ）. CONCLUSION： The dimensions and distribution in interven- tricular septal branches of coronary artery are similar in cardiovascular diseases and interventricular septal branches of coronary artery can serve as ideal target vessels for both retrograde approach of right CTO recanalization and percutaneous transluminal septal myocardium ablation in HOCM.