Renal artery variants: a comprehensive cadaveric comparative study using morphological and corrosion casting technique

R. Kaushik, Alok Tripathi, H. Kausar, Prabhat Goel, Shobhit Raizaday, Pooja Dawani
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Abstract

Background: Kidneys, crucial excretory organs, receive substantial blood supply through renal arteries. Variations in their anatomy are common, warranting detailed investigation. This study aims to comprehensively examine renal artery patterns using both gross dissection and the corrosion cast method. Methods: Thirty kidney pairs from cadavers were meticulously dissected at Subharti Medical College, Meerut, U.P. India. Gross features were carefully noted, and corrosion casts were meticulously prepared. Prevalence, origin, level, division, course, and variations were exhaustively recorded to provide a thorough understanding of renal vascular anatomy. Results: Main renal arteries were found to predominantly originate from the abdominal aorta in all specimens. Interestingly, a higher prevalence of origin of right renal arteries was observed, with 47% exhibiting a higher origin than their left counterparts. Further analysis revealed prehilar division in 38.3% and hilar division in 61.6% of specimens. Notably, a segmental pattern of renal arteries was observed. Accessory renal arteries (8%) were identified, including rare occurrences of bilateral and double accessory renal arteries. Of particular significance was the observation of an accessory renal artery passing anterior to the inferior vena cava, highlighting the intricacies of renal vascular variations. Conclusions: While reaffirming the conventional understanding of renal arterial anatomy, this study emphasizes the complexity and clinical relevance of variations in renal artery morphology. Such detailed insights are invaluable for surgical and radiological practice, underlining the importance of meticulous preoperative assessment to optimize patient outcomes.
肾动脉变异:利用形态学和腐蚀铸造技术进行的尸体综合比较研究
背景:肾脏是重要的排泄器官,通过肾动脉获得大量血液供应。其解剖结构的变异很常见,值得详细研究。本研究旨在利用大体解剖和腐蚀铸模法全面检查肾动脉形态:方法:在印度 U.P. 省 Meerut 的 Subharti 医学院对尸体的 30 对肾脏进行了细致解剖。方法:在印度 U.P. Meerut 的 Subharti 医学院对 30 对尸体的肾脏进行了细致的解剖,仔细记录了解剖特征,并精心制备了腐蚀铸模。详尽记录了发病率、起源、级别、分部、走向和变异,以便全面了解肾脏血管解剖:结果:在所有标本中都发现肾主动脉主要起源于腹主动脉。有趣的是,观察到右肾动脉起源的比例较高,47%的右肾动脉起源高于左肾动脉。进一步分析发现,38.3%的标本为肾前动脉分流,61.6%的标本为肾动脉分流。值得注意的是,还观察到肾动脉的节段模式。还发现了附属肾动脉(8%),包括罕见的双侧和双附属肾动脉。特别重要的是,观察到一条从下腔静脉前方穿过的附属肾动脉,这凸显了肾脏血管变异的复杂性:结论:这项研究重申了对肾动脉解剖的传统认识,同时强调了肾动脉形态变化的复杂性和临床意义。这些详细的见解对外科和放射学实践非常宝贵,强调了术前细致评估对优化患者预后的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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