Department of Human Anatomy and Medical Physiology, University of Nairobi, Kenya.
Starschema Inc., Office of Intramural Research, Arlington, VA, USA.
Ethiop J Health Sci. 2022 Mar;32(2):445-452. doi: 10.4314/ejhs.v32i2.25.
The anatomy of the radial artery draws great interests among anatomists for its frequent involvement in variations. Equally, these variations have gained significant attention from clinicians because of the preference to use the radial artery for catheterization. The commonest of radial artery variations involve its site of origin. In published literature, data on this variations exist, but the prevalence of such variations in a Kenyan population has hitherto been unknown.
Sixty-two upper limbs from 50 formalin-fixed cadavers were studied during dissection in the Department of Human Anatomy, University of Nairobi.
Fifty-four (87.1%) radial arteries arose within the cubital fossa, while eight (12.9%) had a high origin. Out of the eight high arteries, two (3.2%) branched off from the axillary artery, another two (3.2%) were branches of the proximal third of the brachial artery and four (6.5%) arose from the middle third of the brachial artery. The high origin radial arteries were more common on the right upper limbs (5 out of the 8 cases). Both axillary and brachial origins were seen bilaterally.
The present study details important variations in the anatomy of the radial artery in a Kenyan population. With the radial artery being utilized during clinical, surgical and radiological interventions so frequently, an increased understanding and anticipation of such topographic variances is paramount.
桡动脉的解剖结构因其频繁涉及变异而引起解剖学家的极大兴趣。同样，由于偏爱使用桡动脉进行导管插入术，这些变异也引起了临床医生的高度关注。桡动脉最常见的变异涉及其起源部位。在已发表的文献中，有关于这些变异的数据，但迄今为止，肯尼亚人群中这种变异的流行情况尚不清楚。
在肯尼亚内罗毕大学人体解剖学系的解剖过程中，研究了 50 具福尔马林固定尸体的 62 个上肢。
54 条（87.1%）桡动脉发自肘窝，8 条（12.9%）有高位起源。在这 8 条高位动脉中，有 2 条（3.2%）发自腋动脉，2 条（3.2%）发自肱动脉近段，4 条（6.5%）发自肱动脉中段。高位起源的桡动脉在上肢更为常见（8 例中有 5 例）。腋动脉和肱动脉起源均为双侧。
本研究详细描述了肯尼亚人群桡动脉解剖结构的重要变异。由于桡动脉在临床、外科和放射学干预中经常被使用，因此增加对这些局部变异的理解和预测至关重要。
