犬心肌桥观测及与人心肌桥的比较  

Observation on Myocardial Bridge in Dog and Comparison with Human

作　　者：申彪[1] 关永强[2] 郭志坤[1] 薛冰[2] 张小燕[2] 

机构地区：[1]新乡医学院解剖学教研室 [2]新乡医学院,02级学生新乡453003

出　　处：《实验动物与比较医学》2006年第1期31-33,共3页Laboratory Animal and Comparative Medicine

摘　　要：目的探讨心肌桥对心肌缺血的影响,为制备动物模型提供依据。方法解剖41例犬心脏左、右冠状动脉及其分支,观测有关数据,进行统计学处理。结果 41例犬心脏中心肌桥出现29例(占70．73％),其中出现1个、2个、3个、4个、5个心肌桥的分别有14例(占34．1％)、7例 (占17．1％)、6例(占14．6％)、1例(占2．4％)、1例(占2．4％);前室间支、后室间支、左室前支、左室后支、左缘支、左圆锥支出现心肌桥的有23例(占56．1％)11例(占26．83％)、5例(占12．20％)、3 例(占7．32%)、2例(占4．88％)、1例(占2．44%)。心肌桥肌纤维与壁冠状动脉的夹角68．94°±14．38°, 心肌桥宽7．77±5．05 mm,心肌桥厚0．56±0．61 mm。结论犬冠状动脉心肌桥与人心肌桥出现率 (66．3%-85%)、部位相似,犬是研究心肌桥对心肌缺血影响的理想动物模型。Objective To provide evidence for establishing animal model, and to investigate the effects of myocardium bridge on ischemic myocardium. Methods The left and right coronary artery and their branches of 41 cases of dogs＇ hearts were anatominged and observed. Results Myocardium bridges appeared on dogs＇ hearts in29 cases out of 41 cases;1, 2, 3, 4, 5 myocardium bridges appeared respectively in 14 cases （of 34.1%）, 7 cases （of 17.1%）, 6 cases （of 14.6%）, 1 cases （of 2.4%）, 1 cases （of 2.4%）. The myocardium bridge appeared on anterior interventricular, posterior interventricular branch, on anterior branch of the left venteicle,on posterior branch of the left ventricle, on the left marginal branch,and the left branch of conus llcases （26.83%）, 5 case （12.20%）, 3 cases （7.32%）, 2 cases （4.88%）, 1 cases （of 2.44%） respectively.The angle between the fibers of the myocardium bridge and nural coronary artery is 68.94°±14.38° ,the width of the myocardium bridge is 7.77±5.05 ram, and the thickness of the myocardium bridge is 0.56 ± 0.61 mm.Conclusion Dogs＇ myocardium bridges are similar to that of human,so dog is the ideal modles for studying the effects of myocardium bridge on ischemic myocardium.

关 键 词：犬 心肌桥 壁冠状动脉 观测 比较 

分 类 号：R322[医药卫生—人体解剖和组织胚胎学]