Evidence map›Paper›PMID 41695856›Full record

ArticleWorld journal of gastrointestinal surgery2026

Clinical characteristics of and risk factors for hepatolithiasis developed after surgery for congenital biliary dilatation.

Fumio Asano, Ryusei Matsuyama, Takafumi Kumamoto, Masato Shinkai, Daisuke Morioka, Satoru Shinoda, Itaru Endo

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Article in World journal of gastrointestinal surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Fumio AsanoDepartment of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Kanagawa, Japan. t136001f@yokohama-cu.ac.jp.
Ryusei MatsuyamaDepartment of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Kanagawa, Japan.
Takafumi KumamotoDepartment of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Kanagawa, Japan.
Masato ShinkaiDepartment of Surgery, Kanagawa Children's Medical Center, Yokohama 232-8555, Kanagawa, Japan.
Daisuke MoriokaDepartment of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Kanagawa, Japan.
Satoru ShinodaDepartment of Biostatistics, Yokohama City University School of Medicine, Yokohama 236-0004, Kanagawa, Japan.
Itaru EndoDepartment of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Kanagawa, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPancreaticobiliary maljunction (PBM) is a congenital disease in which the pancreatic and bile ducts fuse outside the duodenal wall. Congenital biliary dilatation (CBD) involves PBM and dilatation of the extrahepatic bile duct. The lack of Oddi sphincter action at the confluence results in the retrograde flow of pancreatic juice into the bile duct, placing patients with CBD at high risk of biliary carcinoma. The standard treatment for CBD is complete extrahepatic bile duct resection (EHBR). Hepatolithiasis (HL), a late complication following CBD surgery, has a deleterious clinical impact; further research is necessary to elucidate its risk factors.

aimTo clarify the clinical impact of and risk factors for HL after CBD surgery.

methodsA retrospective study was conducted with 223 CBD patients who underwent EHBR across three tertiary hospitals to investigate postoperative complications. An exploratory analysis was performed to identify factors associated with HL development. Risk factors were subsequently identified using least absolute shrinkage and selection operator (LASSO) analysis.

resultsHL was observed in 15/223 (6.7%) patients. Two of those patients developed liver failure owing to biliary cirrhosis; one died, and the other received liver transplantation. Two patients required major hepatectomy. The majority of the remaining patients required repeated enteroscopic and/or percutaneous lithotomy procedures. LASSO analysis revealed older age at surgery as an independent risk factor for HL; the time-dependent receiver operating characteristic analysis at 6 years after surgery revealed a cutoff age of 31 years.

conclusionHL following CBD surgery has a markedly deleterious clinical impact. Advanced age at the time of CBD surgery was identified as an independent risk factor for HL.

Indexed as

Congenital biliary dilatationHepatolithiasisLeast absolute shrinkage and selection operator regulationPancreaticobiliary maljunctionPostoperative complications

Identifiers

PMID41695856
PMCPMC12898359

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