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目的探讨山羊冠状动脉心肌桥的出现率,评价其临床意义。方法外总试验山羊处死,取羊心,经10%甲醛固定5d,流水冲洗。用普通解剖器具剥制,显示冠状动脉大体结构,测量冠状动脉心肌桥长度及出现支数。结果山羊冠状动脉心肌桥多见于左冠前室间支、后室间支和左室前支。前室间支肌桥出现率最高,96例羊心检出88例(85%),心肌桥长度为18.8±5.1mm。心肌桥近端与第一对角支的距离平均为20.1±7.6mm,距前室间支起始部31.3±9.7mm,距右冠起始部45.1±10.4mm。结论山羊冠状动脉有心肌桥出现且较人类高,与冠状动脉粥样硬化有密切关系。
Objective To investigate the incidence of coronary myocardial bridge in goats and to evaluate its clinical significance. Methods The total experimental goats were killed, the sheep heart, fixed with 10% formaldehyde 5d, running water rinse. With the dissection of ordinary dissection apparatus, showing the general structure of coronary artery, measuring the length of coronary myocardial bridge and the appearance of the number of branches. Results Goat coronary myocardial bridge more common in the left anterior chamber interventricular branch, posterior interventricular branch and left anterior branch. The highest incidence of anterior interosseous myocardial bridge, 96 cases of sheep were detected in 88 cases (85%), myocardial bridge length of 18.8 ± 5.1mm. The average distance between the proximal myocardial bridge and the first diagonal branch was 20.1 ± 7.6 mm, which was 31.3 ± 9.7 mm from the beginning of the anterior branch and 45.1 ± 10.4 mm from the beginning of the right coronary artery. Conclusion Goat coronary artery myocardial bridge appeared more than humans, and coronary atherosclerosis are closely related.