Ichikawa H, Matsubara O
Bull Tokyo Med Dent Univ. 1977 Mar;24(1):53-65.
The microvasculature of human myocardium was examined stereoscopically after the injection of Silicone rubber. Material were 40 normal hearts, three of infants, one of child, and 36 of adults, ranging in age from 27 to 79 years. Three types of arteries, subepicardial, branching, and straight type arteries, were confirmed. The microvascular pattern of left ventricular free wall, the posterior wall of the left ventricle, interventricular septum, right ventricular free wall, papillary muscles, trabeculae carneae, infant heart, and aged heart were also examined. The present study revealed that the inner one-third zone was supplied by the terminal branches of both branching and straight type arteries. In infant heart, the inner zone was wider than that of the adult. In the aged cases, reduction in filling with patchy deficit often appeared in this inner zone. The finding of the aged change was probably caused by the characteristic microvascular pattern, and this suggested that the same anatomical mechanism might commit myocardial infarction.
在注射硅橡胶后，对人类心肌的微血管系统进行了立体检查。材料为40颗正常心脏，其中3颗为婴儿心脏，1颗为儿童心脏，36颗为成人心脏，年龄范围为27至79岁。确认了三种类型的动脉，即心外膜下动脉、分支型动脉和直型动脉。还检查了左心室游离壁、左心室后壁、室间隔、右心室游离壁、乳头肌、肉柱、婴儿心脏和老年心脏的微血管模式。本研究表明，内侧三分之一区域由分支型动脉和直型动脉的终末分支供血。在婴儿心脏中，内侧区域比成人的更宽。在老年病例中，该内侧区域常出现充盈减少伴斑片状缺损。老年变化的发现可能是由微血管模式的特征引起的，这表明相同的解剖学机制可能导致心肌梗死。
