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Hepatic arterial buffer response after pediatric living donor liver transplantation: report of a case

Y Sanada1, K Mizuta, T Urahashi

  • 1Department of Transplant Surgery, Jichi Medical University, and Department of Pharmacy, Jichi Medical University Hospital, Shimotsuke City, Tochigi, Japan. yuki371@jichi.ac.jp

Transplantation Proceedings
|December 17, 2011
PubMed

Insights

Excessive portal vein flow after living-donor liver transplantation (LDLT) can decrease hepatic artery flow. This pressure imbalance resolved spontaneously, improving blood flow and suggesting potential for early intervention in high-risk pediatric liver transplant patients.

Area of Science:

  • Hepatology
  • Transplant Surgery
  • Pediatric Gastroenterology

Background:

  • High portal pressure post-living-donor liver transplantation (LDLT) risks graft failure and hepatic arterial complications.
  • The hepatic arterial buffer response can lower hepatic artery flow when portal vein flow is excessive.

Observation:

  • A pediatric LDLT case presented with excessive portal vein flow and reduced hepatic artery flow.
  • This hemodynamic imbalance occurred early post-transplant without anastomotic stenosis.

Findings:

  • Portal vein flow normalized around postoperative day 8.
  • Simultaneously, hepatic artery flow improved, indicating the reversibility of the condition.

Implications:

  • Temporary portal pressure modulation may prevent hepatic arterial complications in at-risk LDLT patients.
  • Understanding these hemodynamic shifts is crucial for optimizing outcomes in pediatric liver transplantation.
Abstract

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