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The accessory renal arteries: A systematic review with meta-analysis
George Triantafyllou1, Ioannis Paschopoulos1, Andrzej Węgiel2
1Department of Anatomy, School of Medicine, Faculty of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece.
Clinical Anatomy (New York, N.Y.)
|December 8, 2024
Summary
Accessory renal arteries (ARAs) occur in 21.10% of individuals, often presenting as a single vessel. Understanding these renal artery variants is crucial for preventing surgical complications and improving patient care.
Area of Science:
- Vascular Anatomy
- Radiology
- Surgical Anatomy
Background:
- Accessory renal arteries (ARAs) represent a common variant in renal vasculature.
- These variations have significant clinical implications for medical professionals.
Purpose of the Study:
- To systematically review and meta-analyze the pooled prevalence of ARAs.
- To detail the variant number, origin, termination, and morphological patterns of ARAs.
- To emphasize the clinical importance of understanding renal artery anatomy.
Main Methods:
- Systematic review of four online databases adhering to PRISMA 2020 guidelines.
- Statistical meta-analysis performed using R programming software.
- Inclusion of 111 eligible studies for analysis.
Main Results:
- Typical renal artery anatomy was observed in 78.92% of cases.
- The overall pooled prevalence of ARAs was estimated at 21.10%.
- Prevalence of one, two, three, and four ARAs were 18.67%, 1.80%, 0.01%, and <0.01%, respectively.
Conclusions:
- Knowledge of typical and variant renal artery anatomy is essential for anatomists, radiologists, and surgeons.
- Understanding ARAs aids in preventing misinterpretations, complications, and iatrogenic injuries.
- ARAs are critical considerations in kidney transplantation and resistant hypertension management.
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