冠状动脉侧支循环形成病人冠脉病变特点分析

The Characteristics of Coronary Lesion in Patients With Coronary Collateral Circulation

目的 :分析冠状动脉 (冠脉 )侧支循环形成的冠心病病人的冠脉病变特点 ,探讨冠状动脉侧支循环形成相关因素。方法 :分析 12 2例选择性冠状动脉造影 (冠造 )证实冠脉侧支循环形成的冠心病病人 (侧支循环形成组 ,A组 )及 131例冠脉病变程度相似而无冠脉侧支循环形成病人 (无侧支循环形成组 ,B组 )的冠脉造影资料及临床资料。结果 :98 4 %的A组患者有 1支冠脉完全闭塞或次全闭塞 ;与B组相比 ,A组患者中多支冠脉闭塞率明显增高(30 0 0 %比 11 4 5 % ,P <0 0 1) ;完全闭塞率明显增高 (75 77%比 6 0 2 7% ,P <0 0 5 )。此外 ,完全闭塞冠脉的侧支循环形成率较次全闭塞冠脉明显增高 (5 8 0 9%比 4 0 2 0 % ,P <0 0 5 )。结论 :冠脉侧支循环形成患者 98 4 %存在完全或次全冠脉闭塞性病变 。

Objective: Our aims were to analyse the characteristics of coronary lesion in patients with coronary collateral circulation and to study the relevant factors in the form of coronay collateral circulation. Methods:The data of coronary angiography and clinical characteristic were analysed in 253 cases with coronary disease, which had underwent coronary angiography. Coronary collateral circulation was found in 122 patients(group A) and not in 131 as control group(group B). Results:In group A, 98.4% of patients had complete or sub-total occlusion of coronary artery. The multiple vessel occlusion rate and complete occlusion rate of coronary artery were significantly higher in group A than those of group B(30.00% vs 11.45%,P<0.01; 75.77% vs 60.27%,P<0.01, respectively). The rate of forming colloteral circulation was higher in the vessels with complete occlusion than those of sub-tatal occlusion(58.09% vs 40.20%,P< 0.05). Conclusion:Most patients(98/4%) with coronary collateral circulation had complete or sub-total occlusion lesion of coronary artery. The degree of occlusion determines whether the coronary collateral circulation can form or not.