Zhan Dong, Zhao Yi, Sun Jun, Ling Eng-Ang, Yip George W
Department of Anatomy, Faculty of Basic Medical Sciences, Kunming Medical College, PR China.
ScientificWorldJournal. 2010 Oct 12;10:1999-2002. doi: 10.1100/tsw.2010.187.
Variations in the arterial supply of the upper limb are relatively common, with reported prevalence rates ranging from 11 to 24.4%. Of these, the most commonly encountered variation in the arm is a high origin of the radial artery. However, after consecutively dissecting and examining 600 Singaporean Chinese cadavers (1,200 upper limbs), we found only two cases of this. In both cases, the brachioradial artery originated from the upper one-third of the brachial artery and continued distally as the radial artery in the forearm. The local prevalence of 0.33% of this variation is significantly lower compared against populations from other geographical regions. Although rare, recognition of the variation is of fundamental importance to clinical practice.
上肢动脉供应的变异相对常见，报告的患病率在11%至24.4%之间。其中，上肢最常见的变异是桡动脉高位起源。然而，在连续解剖和检查600具新加坡华裔尸体（1200条上肢）后，我们仅发现两例这种情况。在这两例中，肱桡动脉均起源于肱动脉上三分之一处，并在前臂远端延续为桡动脉。与其他地理区域的人群相比，这种变异的局部患病率为0.33%，明显较低。尽管罕见，但识别这种变异对临床实践至关重要。
