Abstract
The upper extremity arterial system shows a large number of variations attributed to the complex and multiple sites of their embryonic development. It is important to be aware of arterial variations in this region because upper extremity is a frequent site of injury. Moreover, brachial artery is of significance in cardiac catheterization for angioplasty, pedicle flaps, or arterial grafting. Accurate knowledge and relationships of major arterial conduits and their variational patterns is important in reparative surgery in the arm, forearm and hand. One such variation is superficial brachial artery with prevalence rate of 0.2-25%. In this report, the brachial artery emanated normally but coursed superficial to the median nerve and about five cm above the intercondylar line, bifurcated into its terminal branches i.e. radial and ulnar artery.
Highlights
The upper extremity arterial system in humans shows a large number of variations attributable to the complex and multiple sites of their development.These are observed so frequently that it can be aptly said about them that variation is a rule rather than an exception.[1]
Since the upper extremity is a frequent site of injuryand various surgical and invasive procedures are performed in this region, it is of utmost importance to be aware of arterial variations of this region.[2]
Superficial brachial artery is named so because it runs superficial to median nerve.[3]
Summary
The upper extremity arterial system in humans shows a large number of variations attributable to the complex and multiple sites of their development.These are observed so frequently that it can be aptly said about them that variation is a rule rather than an exception.[1] Since the upper extremity is a frequent site of injuryand various surgical and invasive procedures are performed in this region, it is of utmost importance to be aware of arterial variations of this region.[2] Most of the variations occur in either radial or ulnar artery; brachial artery variations are less common.One such variation is superficial brachial artery in which the brachial artery crosses superficial to median nerve It is reported by different authors with a prevalence rate of 0.2- 25%.
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