4.3 Article

Variations of the hepatic artery and bile duct in patients with pancreaticobiliary maljunction: Impact on postoperative outcomes

Journal

JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES
Volume 30, Issue 11, Pages 1241-1248

Publisher

WILEY
DOI: 10.1002/jhbp.1381

Keywords

anatomical variation; bile duct; congenital biliary dilatation; hepatic artery; pancreaticobiliary maljunction

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Preoperative comprehension of the anatomical variations of the hepatic artery and bile duct is crucial for safe laparoscopic surgery for pancreaticobiliary maljunction. This study found that anatomical variations of the hepatic artery and bile duct have an important impact on surgical technique and postoperative complications, including aberrant right hepatic artery and aberrant posterior hepatic duct. In particular, the presence of aberrant posterior hepatic duct is associated with postoperative bile leak occurrence.
Purpose: Preoperative comprehension of the anatomical variations of the hepatic artery and bile duct is essential for safe laparoscopic surgery for pancreaticobiliary maljunction (PBM). This study aimed to investigate the impact of anatomical variations of the hepatic artery and bile duct on surgical technique and postoperative complications.Methods: We conducted a retrospective review of patients with PBM who underwent laparoscopic surgery at our institution between January 2014 and December 2022 to investigate anatomical variations in the hepatic artery and bile duct, surgical technique, and postoperative complications.Results: We included 112 patients with PBM, with a median age of 4 years (interquartile range, 0-55). Overall, 29 of 112 patients had an aberrant right hepatic artery (ARHA) running ventral to the common hepatic duct (CHD), and they underwent hepaticojejunostomy on the ventral side of the ARHA. Additionally, eight of 112 patients had an aberrant posterior hepatic duct (APHD), which was joined to the CHD in all but one case. The presence of APHD was associated with postoperative bile leak occurrence.Conclusion: Performing hepaticojejunostomy ventral to the ARHA is important to prevent complications. Furthermore, APHD may be a risk factor for postoperative bile leak and requires careful bile duct plasty.

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