Clinical importance of a star shaped branch of internal iliac artery and unusual branches of an abnormal obturator artery: rare vascular variations

Nayak, Satheesha B.; Guru, Anitha; Reghunathan, Deepthinath; Maloor, Prasad Alathadi; Padavinangadi, Abhinitha; Shantakumar, Swamy Ravindra

doi:10.1590/1677-5449.000116

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…Human anatomy studies suggest variations in the origin of the OA are common [1][2][3][4][5][6][7][8][9][10]. An aberrant obturator artery (AOA) is a vessel of an atypical origin and location.…”

Section: Variation In the Obturator Arterymentioning

confidence: 99%

Analysis of Variation in the Origin of the Obturator Artery in Midwestern American Donor Bodies

Diemer,

Schubert,

Funk

et al. 2024

Cureus

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The obturator artery (OA) is typically a branch of the anterior division of the internal iliac artery. However, an aberrant obturator artery origin may lead to clinical complications. Because of its location in the pelvic cavity, the OA is at high risk of injury or laceration during a variety of pelvic surgeries. Regarding this, variations in the origins of the OA may result in bleeding that can often be overlooked, rendering treatment ineffective. Our study aimed to assess the origins and course of the OA in Midwestern American donor bodies. Sixty-two donor bodies were obtained from the Gift of Body Donation Program at A.T. Still University’s Kirksville College of Osteopathic Medicine. The origin of each OA was documented and photographed. The OA was identified by observing the vessel's passage through the obturator foramen. Of 132 OAs studied, 72 (54.5%) had an aberrant OA. Further, 22 (16.7%) had an aberrant OA origin from the inferior epigastric artery, 20 (15.2%) had an aberrant OA origin from the posterior division of the internal iliac artery, 22 (16.7%) had an aberrant OA origin from dual origins of the anterior division of the internal iliac artery and the inferior epigastric artery, and eight (6.1%) had other aberrant OA origins. Overall, our results indicated anatomical variations are common in the origins and course of the OA. These data highlight the importance of considering variations in the OA and the prevalence of those variations during vascular and orthopedic procedures.

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Section: Variation In the Obturator Arterymentioning

confidence: 99%

Analysis of Variation in the Origin of the Obturator Artery in Midwestern American Donor Bodies

Diemer,

Schubert,

Funk

et al. 2024

Cureus

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show abstract

“…In this donor, the OA originates from the IIA and courses to the obturator foramen without giving off any substantial nutrient branches. The obturator artery (OA) is typically a branch of the anterior division of the internal iliac artery (IIA), but the occurrence of aberrant OAs is relatively common [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. Accordingly, the origin of the OA is well studied, and can be classified using various schemes [ 12 , 13 ].…”

mentioning

confidence: 99%

Unconventional Obturator Artery Nutrient Branch: Image of an Anatomical Variation

et al. 2022

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Variations in vascular anatomy are of great concern to surgeons, as proper identification of aberrant arteries can reduce the risk of iatrogenic injury and improve patient outcomes. Several studies have highlighted the irregular branching pattern of pelvic arteries, with a recent focus on the obturator artery (OA). The OA has an inconstant origin from the internal iliac artery, external iliac artery, or inferior epigastric artery. Within the pelvis, the OA can give off muscular branches and nutrient vessels to the ilium and pubis. Though occasionally described in text, few resources employ images of human donors that depict branches arising from the OAs. Out of the 34 hemisected pelves studied, we identified 1 individual with a substantial nutrient vessel branching unilaterally from the OA. Herein, we present the first image of this unconventional nutrient artery. This vessel should be highlighted given that its size and course make it particularly vulnerable during intrapelvic surgeries such as pelvic lymph node dissection or in procedures requiring arterial embolization of the OA.

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Clinical importance of variability in the branching pattern of the internal iliac artery – An updated and comprehensive review with a new classification proposal

Balcerzak

Hajdys

Tubbs

et al. 2022

Annals of Anatomy - Anatomischer Anzeiger

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Clinical importance of a star shaped branch of internal iliac artery and unusual branches of an abnormal obturator artery: rare vascular variations

Cited by 4 publications

References 19 publications

Analysis of Variation in the Origin of the Obturator Artery in Midwestern American Donor Bodies

Analysis of Variation in the Origin of the Obturator Artery in Midwestern American Donor Bodies

Unconventional Obturator Artery Nutrient Branch: Image of an Anatomical Variation

Clinical importance of variability in the branching pattern of the internal iliac artery – An updated and comprehensive review with a new classification proposal

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