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Preoperative estimation of hemi-liver volume using standard liver volume and portal vein diameter ratio in living donor liver transplantation

  • Sung-Min Kim (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Amro Hasan Ageel (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Shin Hwang (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Dong-Hwan Jung (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Tae-Yong Ha (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Gi-Won Song (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Gil-Chun Park (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Chul-Soo Ahn (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Deok-Bog Moon (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
  • 투고 : 2022.05.18
  • 심사 : 2022.06.24
  • 발행 : 2022.11.30

초록

Backgrounds/Aims: Although body surface area (BSA)-based standard liver volume (SLV) formulae have been used for living donor liver transplantation and hepatic resection, hemi-liver volume (HLV) is needed more frequently. HLV can be assessed using right or left portal vein diameter (RPVD or LPVD). The aim of this study was to validate the reliability of using portal vein diameter ratio (PVDR) for assessing HLV in living liver donors. Methods: This study included 92 living liver donors (59 males and 33 females) who underwent surgery between January 2020 and December 2020. Computed tomography (CT) images were used for measurements. Results: Mean age of donors was 35.5 ± 7.2 years. CT volumetry-measured total liver volume (TLV), right HLV, left HLV, and percentage of right HLV in TLV were 1,442.9 ± 314.2 mL, 931.5 ± 206.4 mL, 551.4 ± 126.5 mL, and 64.6% ± 3.6%, respectively. RPVD, LPVD, and main portal vein diameter were 12.2 ± 1.5 mm, 10.0 ± 1.3 mm, and 15.3 ± 1.7 mm, respectively (corresponding square values: 149.9 ± 36.9 mm2, 101.5 ± 25.2 mm2, and 237.2 ± 52.2 mm2, respectively). The sum of RPVD2 and LPVD2 was 251.1 ± 56.9 mm2. BSA-based SLV was 1,279.5 ± 188.7 mL (error rate: 9.1% ± 14.4%). SLV formula- and PVDR-based right HLV was 760.0 ± 130.7 mL (error rate: 16.2% ± 13.3%). Conclusions: Combining BSA-based SLV and PVDR appears to be a simple method to predict right or left HLV in living donors or split liver transplantation.

키워드

참고문헌

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