Monday, January 25, 2021

A systematic review of splenic artery variants based on cadaveric studies.

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A systematic review of splenic artery variants based on cadaveric studies.

Surg Radiol Anat. 2021 Jan 22;:

Authors: Manatakis DK, Piagkou M, Loukas M, Tsiaoussis J, Delis SG, Antonopoulos I, Chytas D, Natsis K

Abstract
PURPOSE: The splenic artery (SA) is the largest and most tortuous branch of the celiac trunk with a wide spectrum of variants, particularly in its terminal branches.
METHODS: The current study presents a systematic review of the English literature on the SA variations, with emphasis on its terminal branching patterns.
RESULTS: Thirty cadaveric studies (3132 specimens) were included in the analysis. The SA originated from the celiac trunk in 97.2%, from the abdominal aorta in 2.1% and from the superior mesenteric or the common hepatic artery in 0.7% of cases. A suprapancreatic course was observed in 77.4%, retropancreatic course in 17.8%, anteropancreatic course in 3.4% and intrapancreatic course in 1.3%. In the majority of cases, the SA bifurcated into superior and inferior lobar arteries (83.4%), with trifurcation and quadrifurcation in 11.3% and 2.7%, respectively. Five or more lobar branches (1.4%) and a single lobar artery (1.2%) were rarely identified. The distributed branching pattern was found in 72.7%, whereas the magistral pattern in 26.9%. The inferior and superior polar arteries (IPA and SPA) were found in 47.7% and 41.7% of cases, respectively, while polar artery agenesis was recorded in 28.2%. The SPA usually originated from the SA main trunk (53.6%) or from the superior lobar artery (33.1%). The IPA emanated mainly from the left gastroepiploic artery (53%), from the SA (23.5%) or the inferior lobar artery (21.9%). Intersegmental anastomoses between adjacent arterial segments were identified in 14.2%.
CONCLUSION: Knowledge of the SA aberrations is important for surgeons and radiologists involved in angiographic interventions.

PMID: 33481130 [PubMed - as supplied by publisher]

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