Avirmed A, Auyrzana A, Nyamsurendejid D, Tumenjin E, Enebish S, Amgalanbaatar D
Department of Anatomy, University of Mongolia, Ulaanbaatar, Mongolia.
Folia Morphol (Warsz). 2012 May;71(2):93-9.
Knowledge of morphometric quantities of coronary arteries in infants is an increasingly vital component in managing congenital and acquired heart disease. Because of considerable heterogeneity of coronary vasculature, what is considered atypical and aberrant or insignificant anatomy is often unclear. The purpose of our present study is to define normal infant anatomy. This was done by focusing on the segment analysis of coronary arteries in infants. Segment analysis was used to define an accurate definition of the length and diameter of the coronary network. The lengths, widths, and numbers of collateral branches of the coronary arteries were measured. The coronary vessels of 40 infant hearts were visualised postmortem by injection of the coronary arteries with X-ray opaque dye for the imaging study. Also, black ink cast and silver impregnation specimens were studied. The longest segment of the circumflex branches of left coronary arteries was the second; the lengths were 9066.6 ± ± 1828 μm. The length of I, III, and IV were 7366 ± 378.7 μm, 7536.6 ± ± 1533.8 μm, 4476.6 ± 690.9 μm, respectively. The lengths of the circumflex branch of the coronary artery were longer than that of the others; it is joined with the anterior interventricular branch of the coronary artery in the dorsal wall of the left ventricle. Rates of branching and ramification were low, and the number of lateral branches was low.
了解婴儿冠状动脉的形态学数量是管理先天性和后天性心脏病中日益重要的组成部分。由于冠状动脉血管结构存在相当大的异质性，通常不清楚什么被认为是非典型、异常或无意义的解剖结构。我们当前研究的目的是定义正常婴儿的解剖结构。这是通过关注婴儿冠状动脉的节段分析来完成的。节段分析用于准确界定冠状动脉网络的长度和直径。测量了冠状动脉侧支的长度、宽度和数量。对40例婴儿心脏的冠状动脉进行尸检可视化，通过向冠状动脉注射X射线不透明染料进行成像研究。此外，还研究了黑色墨水铸型和银浸染标本。左冠状动脉旋支最长的节段是第二个；长度为9066.6±1828μm。I、III和IV的长度分别为7366±378.7μm、7536.6±1533.8μm、4476.6±690.9μm。冠状动脉旋支的长度比其他节段长；它在左心室后壁与冠状动脉前室间支相连。分支和分叉率低，侧支数量少。
