title: Significance of portal hemodynamic investigation in prediction of hepatic functional reserve in patients with hepatocellular carcinoma undergoing operative treatment.
abstract: OBJECTIVE
  To evaluate clinical significance of portal hemodynamic investigation in prediction of hepatic functional reserve in patients with hepatocellular carcinoma undergoing operative treatment.
  
  
  METHODS
  By using the color Doppler velocity profile technique, preoperative portal hemodynamic status was assessed in 29 patients with hepatocellular carcinoma treated surgically, including 15 segmentectomies, 6 hemihepatectomies and 8 transarterial chemoembolizations. Forty-six normal volunteers were taken as control. Comparison of preoperative portal hemodynamics between patients recovering from operation smoothly (tolerant subgroup) and those with major complications or death (intolerant subgroup) was done, and discriminant analysis was employed to identify the cut-off value for significant parameters that maximally separate the tolerant subgroup from the intolerant subgroup.
  
  
  RESULTS
  In the portal trunk, CSVmax (maximum cross-sectional mean velocity) was significantly lower in the hepatocellular carcinoma group compared with the normal group (P < 0.01); flow volume was not obviously different between the two groups; congestion index was markedly higher in the hepatocellular carcinoma group than that of the normal group (P < 0.05). In the splenic vein, CSVmax and congestion index was not obviously different between the hepatocellular carcinoma and the normal groups; flow volume was significantly higher in the hepatocellular carcinoma group than that of the normal group (P < 0.05). In the hepatocellular carcinomas, twenty-three patients recovered smoothly from the operation and the remaining 6 had severe complications or death. Tolerant subgroup had a significantly higher preoperative CSVmax and flow volume and lower congestion index of the portal trunk compared with the intolerant subgroup (all P < 0.01). Discriminant analysis revealed that portal trunk CSVmax > 13.50 cm/s and flow volume > 12.13 mL/min/kg could predict tolerance for surgery, with an accuracy of 82.7% and 89.7%, respectively.
  
  
  CONCLUSIONS
  The results suggest that preoperative portal hemodynamic status in hepatocellular carcinomas had a close correlation with hepatic functional reserve, and CSVmax and flow volume of portal trunk might become valuable predictive parameters.
authors.affiliation: Department of Hepatobiliary Surgery, First Affiliated Hospital, Sun Yat-Sen University of Medical Sciences, Guangzhou, 510080, PR China.
authors.forename: X Y
authors.initials: XY
authors.lastname: Yin
authors.forename: M D
authors.initials: MD
authors.lastname: Lu
authors.forename: J F
authors.initials: JF
authors.lastname: Huang
authors.forename: L J
authors.initials: LJ
authors.lastname: Liang
mesh_terms: D000328:Adult; D000368:Aged; D001783:Blood Flow Velocity; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery; D005260:Female; D006439:Hemodynamics; D006801:Humans; D008099:Liver / Q000503:physiopathology*; D008111:Liver Function Tests; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011168:Portal System / Q000503:physiopathology*; D011446:Prospective Studies; D018615:Ultrasonography, Doppler, Color / Q000379:methods