Frequency and Clinical Review of the Aberrant Obturator Artery: A Cadaveric Study

Granite, Guinevere; Meshida, Keiko; Wind, Gary

doi:10.3390/diagnostics10080546

Cited by 12 publications

(20 citation statements)

References 49 publications

(258 reference statements)

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“…The OA has been well documented to present significant anatomical variability. The atypical origins of OA variations have been extensively described and correlated to hemorrhagic risks in surgeries involving the pelvis [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. According to a meta-analysis by Sañudo et al, the origin of OA variations could arise from the anterior or posterior trunk of the IIA, the inferior epigastric artery (IEA), the external epigastric artery (EEA), or the femoral artery [ 24 ].…”

Section: Discussionmentioning

confidence: 99%

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A Bipartite Obturator Artery with Multiple Pelvic Branching—A Gynecologic Approach

et al. 2022

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Background: The obturator artery (OA) often presents multiple anatomical variations. These can be an atypical origin, variable anastomosis, or abnormal course within the pelvis. Methods: This study aimed to report a rare arterial variation in a Puerto Rican female cadaver that showed two abnormal obturator arteries with multiple pelvic branches. The OA emerged from the anterior branch of the internal iliac artery, which typically runs anteroinferior along the lateral wall of the pelvis to the upper part of the obturator foramen. Results: The atypical OA described in this report provided two variant branches. Abnormal obturator artery I (AOAI) emerged first and gave rise to three additional branches, while abnormal obturator artery II (AOAII) emerged second and gave rise to two other branches. Conclusions: Identifying these accessory arteries is essential for surgical interventions, particularly within the field of gynecology and urogynecology. Knowledge regarding anatomical variations within this region must be assessed preoperatively to decrease the risk of iatrogenic injury.

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Section: Discussionmentioning

confidence: 99%

“…Anatomical variations in the pelvic blood supply are common [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. Thus, a detailed description of these variants has been an advancement promoting minimally invasive gynecologic surgery and surgical quality and safety.…”

Section: Discussionmentioning

confidence: 99%

A Bipartite Obturator Artery with Multiple Pelvic Branching—A Gynecologic Approach

et al. 2022

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“…The OA is located medially to the ureter, cranially to the obturator vein, and caudally to the obturator nerve [ 55 , 61 ]. The OA has the greatest variation frequency among the IIA branches [ 62 ]. Furthermore, the OA may arise from the EIA, the femoral artery, the deep circumflex iliac artery, the posterior branch of IIA, or from the inferior epigastric artery ( Figure 12 ) [ 42 , 55 , 63 ].…”

Section: Uterine and Obturator Artery Variations Related To Plndgmentioning

confidence: 99%

Pelvic Lymphadenectomy in Gynecologic Oncology—Significance of Anatomical Variations

et al. 2021

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Pelvic lymphadenectomy is a common surgical procedure in gynecologic oncology. Pelvic lymph node dissection is performed for all types of gynecological malignancies to evaluate the extent of a disease and facilitate further treatment planning. Most studies examine the lymphatic spread, the prognostic, and therapeutic significance of the lymph nodes. However, there are very few studies describing the possible surgical approaches and the anatomical variations. Moreover, a correlation between anatomical variations and lymphadenectomy in the pelvic region has never been discussed in medical literature. The present article aims to expand the limited knowledge of the anatomical variations in the pelvis. Anatomical variations of the ureters, pelvic vessels, and nerves and their significance to pelvic lymphadenectomy are summarized, explained, and illustrated. Surgeons should be familiar with pelvic anatomy and its variations to safely perform a pelvic lymphadenectomy. Learning the proper lymphadenectomy technique relating to anatomical landmarks and variations may decrease morbidity and mortality. Furthermore, accurate description and analysis of the majority of pelvic anatomical variations may impact not only gynecological surgery, but also spinal surgery, urology, and orthopedics.

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“…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 ].…”

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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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Frequency and Clinical Review of the Aberrant Obturator Artery: A Cadaveric Study

Cited by 12 publications

References 49 publications

A Bipartite Obturator Artery with Multiple Pelvic Branching—A Gynecologic Approach

A Bipartite Obturator Artery with Multiple Pelvic Branching—A Gynecologic Approach

Pelvic Lymphadenectomy in Gynecologic Oncology—Significance of Anatomical Variations

Unconventional Obturator Artery Nutrient Branch: Image of an Anatomical Variation

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