Impact of the inferior vena cava morphology on fluid dynamics of the hepatic veins.

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  • Additional Information
    • Source:
      Publisher: Springer International Country of Publication: Japan NLM ID: 9204360 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1436-2813 (Electronic) Linking ISSN: 09411291 NLM ISO Abbreviation: Surg Today Subsets: MEDLINE
    • Publication Information:
      Original Publication: Tokyo : Springer International, c1992-
    • Subject Terms:
      Vena Cava, Inferior*/anatomy & histology ; Hepatic Veins*/anatomy & histology; Humans ; Hydrodynamics ; Liver/diagnostic imaging ; Hepatectomy/methods
    • Abstract:
      We reported previously that a large vertical interval between the hepatic segment of the inferior vena cava (IVC) and right atrium (RA), referred to as the IVC-RA gap, was associated with more intraoperative bleeding during hemi-hepatectomy. We conducted a computational fluid dynamics (CFD) study to clarify the impact of fluid dynamics resulting from morphologic variations around the liver. The subjects were 10 patients/donors with a large IVC-RA gap and 10 patients/donors with a small IVC-RA gap. Three-dimensional reconstructions of the IVC and hepatic vessels were created from CT images for the CFD study. Median pressure in the middle hepatic vein was significantly higher in the large-gap group than in the small-gap group (P = 0.008). Differences in hepatic vein pressure caused by morphologic variation in the IVC might be one of the mechanisms of intraoperative bleeding from the hepatic veins.
      (© 2023. The Author(s) under exclusive licence to Springer Nature Singapore Pte Ltd.)
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    • Grant Information:
      21K16450 JSPS KAKENHI
    • Contributed Indexing:
      Keywords: Computational fluid dynamics; Hepatic vein; Inferior vena cava; Right atrium; Venous pressure
    • Publication Date:
      Date Created: 20230729 Date Completed: 20240123 Latest Revision: 20240123
    • Publication Date:
      20240123
    • Accession Number:
      10.1007/s00595-023-02733-6
    • Accession Number:
      37516666