Anatomical variations of hepatic veins in Vietnamese adults

• Hung Vinh Tran ^[1] ; Hai Van Duong ^[2] ; Ernest F. Talarico
  1. [1] Pham Ngoc Thach University of Medicine, Vietnam
  2. [2] University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam
• Localización: European Journal of anatomy, ISSN-e 1136-4890, Vol. 24, Nº. 2, 2020, págs. 111-120
• Idioma: inglés
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• Resumen

  • The hepatic venous anatomic variations on he-patic resection and transplantation are very im-portant and the least understood aspect of the liv-er. In particular, data are lacking in the literature with reference to Vietnamese patients. The objec-tive of this study was to examine the morphologic and biometric variations of the hepatic veins in Vi-etnamese cadavers. Livers from 20 Vietnamese cadavers preserved in formalin solution were used in this study. Specimens were carefully scraped by curette to expose the branches of hepatic veins. Diameters, lengths and morphologic hepatic varia-tions were recorded. The average diameters of veins were: 34.78 mm (IVC), 20.26 mm (RHV), 14.35 mm (MHV), 14.76 mm (LHV), and 22.49 mm (common trunk). The average length of the com-mon trunk was 6.45 mm; 35% of cases in the short group (< 10 mm), and 65% in the long group (≥ 10mm). A common trunk was present in 90% of specimens. The morphology of the common trunk was comparable to that observed by other investi-gators. Only 10% of cases had accessory RHVs of Type II, with a main trunk and accessory branches to the IVC, in contrast to 90% of Type I, with a main trunk alone. The anatomical variations of the hepatic veins are very diverse. Knowledge of these variations prior to surgery is useful during both par-tial hepatectomy and segmental liver transplanta-tion. Pre-operative hepatic venous imaging can allow for assessment of venous flow and morphol-