非洲黑人人群肱动脉末端的变异

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Methodology: This was a cross sectional descriptive study carried out in human anatomy laboratories in Maseno, Uzima and Masinde muliro universities in Western Kenya. In this study, 77 cadavers constituting (n=154) upper limb specimens of back African population were sampled using stratified sampling technique. Data on termination of BA, laterality of the upper limb and sex of the cadaver were recorded in data entry form. Brachium region was exposed to access the brachial artery where its course to termination was assessed. Descriptive statistics was used to assess frequency distribution of variant termination while Chi-square was used to determine difference in proportion of normal termination and cumulative variation of termination of BA with regards to laterality of the upper limb. Results: Out of 154 upper limbs studied, the majority (89.0%) had a normal termination at the radial neck, while 7.8% terminated at the radial tuberosity. A small percentage of the upper limbs (1.3% and 1.9%) had termination at midarm and proximal arm, respectively. There was no statistically significant difference in variation in the left and right limbs (p=0.333 and p= 0.564) respectively relative to the normal termination. Conclusion and recommendations: There are variations in termination of brachial artery among the black African population, however, the variation from the normal morphology is not statistically significant, though clinically significant. Termination at radial tuberosity is the most common variant and more common in men than women. Understanding variant termination of BA among black African population is key to all health care professionals especially surgeons, radiologists, anatomists and medical students as such variants may lead to misdiagnosis and post operative related complications. Thus, further population and race specific studies need to be undertaken on such variants. 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引用次数: 0

摘要

背景:标准解剖学教科书记载,肱动脉(brachial artery, BA)在桡骨颈部约1cm处分为尺动脉和桡动脉,是上肢的主要动脉供应。然而,由于不同研究结果的差异,BA可能终止于桡骨颈、桡骨粗隆、臂中部和臂近端。基于其临床应用,如血压监测和外科手术,在某些人群中很少报道差异,特别是在非洲黑人人群中缺乏数据,探索BA终止的变化是有必要的。目的:本研究的目的是评估黑人人群中肱动脉终止的变化。方法:这是一项横断面描述性研究,在肯尼亚西部Maseno、Uzima和Masinde muliro大学的人体解剖学实验室进行。在本研究中,采用分层抽样技术对77具尸体(n=154)非洲背部人群上肢标本进行了抽样。在数据输入表中记录BA终止、上肢侧度和尸体性别的数据。肱区暴露于肱动脉,评估其走向终点。采用描述性统计评估变异终止的频率分布,采用卡方法测定正常终止和BA终止累积变异在上肢侧度方面的比例差异。结果:在154例上肢中,大多数(89.0%)在桡骨颈处有正常终止,7.8%在桡骨结节处终止。一小部分上肢(1.3%和1.9%)分别在上臂中部和近端终止。与正常终止组相比,左、右肢差异无统计学意义(p=0.333、p= 0.564)。结论和建议:在非洲黑人人群中,肱动脉末端存在差异,然而,与正常形态的差异没有统计学意义,但具有临床意义。终止于桡骨结节是最常见的变异,男性比女性更常见。了解非洲黑人人群中BA的变异终止对所有卫生保健专业人员,特别是外科医生、放射科医生、解剖学家和医学生至关重要,因为这种变异可能导致误诊和术后相关并发症。因此,需要对这些变异进行进一步的人口和种族研究。关键词:肱动脉,尺动脉,桡动脉,桡骨粗隆,桡骨颈,上臂。出版日期:2023年9月30日
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Variation in Termination of Brachial Artery Among Black African Population
Background: As the main arterial supply of the upper limb, brachial artery (BA) terminates by dividing into ulnar and radial artery about 1cm at the neck of radius as documented in standard anatomy text books. However, due to variations in results from different studies, BA may terminate at the level of neck of radius, radial tuberosity, mid arm and proximal arm. Based on its clinical utility such as blood pressure monitoring and surgical procedures, few reported disparities in certain populations and paucity data especially in black African population, exploration of variations in termination of BA is warranted. Objective :The purpose of this study was to evaluate variation in termination of brachial artery among black African population. Methodology: This was a cross sectional descriptive study carried out in human anatomy laboratories in Maseno, Uzima and Masinde muliro universities in Western Kenya. In this study, 77 cadavers constituting (n=154) upper limb specimens of back African population were sampled using stratified sampling technique. Data on termination of BA, laterality of the upper limb and sex of the cadaver were recorded in data entry form. Brachium region was exposed to access the brachial artery where its course to termination was assessed. Descriptive statistics was used to assess frequency distribution of variant termination while Chi-square was used to determine difference in proportion of normal termination and cumulative variation of termination of BA with regards to laterality of the upper limb. Results: Out of 154 upper limbs studied, the majority (89.0%) had a normal termination at the radial neck, while 7.8% terminated at the radial tuberosity. A small percentage of the upper limbs (1.3% and 1.9%) had termination at midarm and proximal arm, respectively. There was no statistically significant difference in variation in the left and right limbs (p=0.333 and p= 0.564) respectively relative to the normal termination. Conclusion and recommendations: There are variations in termination of brachial artery among the black African population, however, the variation from the normal morphology is not statistically significant, though clinically significant. Termination at radial tuberosity is the most common variant and more common in men than women. Understanding variant termination of BA among black African population is key to all health care professionals especially surgeons, radiologists, anatomists and medical students as such variants may lead to misdiagnosis and post operative related complications. Thus, further population and race specific studies need to be undertaken on such variants. Keywords: Brachial artey, Ulnar artery, Radial artery, Radial tuberosity, Radial neck, Midarm. DOI: 10.7176/JNSR/14-12-03 Publication date: September 30 th 2023
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