Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Systematic Review and Meta-Analysis of the Variants of the Obturatory Artery

Version 1 : Received: 2 May 2023 / Approved: 3 May 2023 / Online: 3 May 2023 (10:09:47 CEST)

A peer-reviewed article of this Preprint also exists.

Brachini, G.; Matteucci, M.; Sapienza, P.; Cirocchi, R.; Favilli, A.; Avenia, S.; Cheruiyot, I.; Tebala, G.; Fedeli, P.; Davies, J.; Randolph, J.; Cirillo, B. Systematic Review and Meta-Analysis of the Variants of the Obturatory Artery. J. Clin. Med. 2023, 12, 4932. Brachini, G.; Matteucci, M.; Sapienza, P.; Cirocchi, R.; Favilli, A.; Avenia, S.; Cheruiyot, I.; Tebala, G.; Fedeli, P.; Davies, J.; Randolph, J.; Cirillo, B. Systematic Review and Meta-Analysis of the Variants of the Obturatory Artery. J. Clin. Med. 2023, 12, 4932.

Abstract

Background: Knowledge of vascular anatomy and its possible variations is essential for performing embolization or revascularization procedures and complex surgery in the pelvis. The obturator artery (OA) is a branch of the anterior division of the internal iliac artery (IIA), and it has the highest frequency of variation between branches of the internal iliac artery. Possible anomalies of the origin of the obturator artery (OA) should be known when performing pelvic and groin surgery, where its control or ligation may be required. The purpose of this systematic review and meta-analysis, based on Sanudo’s classification, is to analyse the origin of the obturator artery (OA) and its variants. Methods: Thirteen articles, published between 1952 and 2020, were included in this systematic review and meta-analysis. Results: The obturator artery (OA) was present in almost all cases (99.8%): the pooled prevalence estimate for internal iliac artery (IIA) was 77.7% (95% CI 71.8% – 83.1%) vs 22.3% (95% CI 16.9% – 28.2%) for the external iliac artery (EIA). In most cases, the obturator artery (OA) originated from the anterior division trunk of the internal iliac artery (IIA) (61.6%). Conclusion: Performing preoperative radiological studies to know the pelvic vascular pattern and having awareness to evaluate possible changes in the obturator artery can reduce the risk of iatrogenic injury and complications

Keywords

obturator artery (OA); Internal Iliac Artery (IIA); External Iliac Artery (EIA)

Subject

Medicine and Pharmacology, Surgery

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