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Prolonged warm ischemia time in the recipient is associated with post-transplant biliary stricture following living-donor liver transplantation

Purpose Post-transplant biliary stricture (PBS) is a common and important complication following orthotopic liver transplantation (LT). This study clarified the incidence of PBS and identified its risk factors. Methods We retrospectively reviewed the medical records of 67 patients who underwent livi...

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Published in:Surgery today (Tokyo, Japan) Japan), 2024-10, Vol.54 (10), p.1193-1200
Main Authors: Sakamoto, Akimasa, Sakamoto, Katsunori, Hikida, Takahiro, Ito, Chihiro, Iwata, Miku, Shine, Mikiya, Uraoka, Mio, Nishi, Yusuke, Nagaoka, Tomoyuki, Honjo, Masahiko, Tamura, Kei, Funamizu, Naotake, Ogawa, Kohei, Takada, Yasutsugu
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Language:English
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Summary:Purpose Post-transplant biliary stricture (PBS) is a common and important complication following orthotopic liver transplantation (LT). This study clarified the incidence of PBS and identified its risk factors. Methods We retrospectively reviewed the medical records of 67 patients who underwent living-donor LT (LDLT) at our institute between June 2010 and July 2022 and analyzed their clinical characteristics, prognosis, and risk factors for PBS. Results Of the 67 patients, 26 (38.8%) developed PBS during the observation period. Multivariate analyses revealed the following independent risk factors for PBS formation: increased red cell transfusion volume per body weight (> 0.2 U/kg; hazard ratio [HR], 3.8; P  = 0.002), increased portal vein pressure (PVP) at the end of LT (> 16 mmHg; HR, 2.88; P  = 0.032), postoperative biliary leakage (HR, 4.58; P  = 0.014), and prolonged warm ischemia time (WIT) (> 48 min; HR, 4.53; P  = 0.008). In patients with PBS, the cumulative incidence of becoming stent free was significantly higher in patients with a WIT ≤ 48 min than in those with a WIT > 48 min ( P  = 0.038). Conclusion Prolonged WIT is associated with intractable PBS following LDLT.
ISSN:0941-1291
1436-2813
1436-2813
DOI:10.1007/s00595-024-02823-z