title: Relationship between preoperative volume and weight of the right liver lobe graft, with and without the middle hepatic vein, in living-donor transplantation.
abstract: BACKGROUND
  The aim of this study was to assess the relationship between the preoperative volume of the right liver lobe (as determined by computed tomography) and the intraoperative graft weight with or without the middle hepatic vein.
  
  
  METHODS
  Sixty-three patients who underwent liver transplantation were included in this study. The preoperative volumes of both the left and the right liver lobe were measured in all patients using computed tomography. The intraoperative weight of the right liver lobe was also measured with (group 1, n = 29) and without (group 2, n = 34) the middle hepatic vein. The results were compared with respect to gender, age, body weight, height, body mass index (BMI), weights of the left and right liver lobes as measured by computed tomography, and intraoperative weight of the right liver lobe.
  
  
  RESULTS
  A 21.64 % difference was observed between the weight of the right liver lobe as measured by computed tomography and the weight of the right lobe without the hepatic vein as measured intraoperatively (group 2). Moreover, a 12.38 % difference was observed between the weight of the right liver lobe as measured by computed tomography and the weight of the right lobe plus the middle hepatic vein as measured intraoperatively (group 1).
  
  
  CONCLUSIONS
  The weight of the right liver lobe graft in a living-donor transplantation is less than that calculated by preoperative computed tomography, and the inclusion of the middle hepatic vein in the right liver lobe graft resulted in a statistically significant decrease in this difference.
authors.affiliation: CETEFI-Centro Terapêutico Especializado em Fígado, Hospital Beneficência Portuguesa de São Paulo, São Paulo, Brazil. gpperon@hotmail.com
authors.forename: Gilberto
authors.initials: G
authors.lastname: Peron
authors.forename: Alcides A
authors.initials: AA
authors.lastname: Salzedas Netto
authors.forename: Jorge Padilla
authors.initials: JP
authors.lastname: Mancero
authors.forename: Marcelo Augusto Fontenelle
authors.initials: MA
authors.lastname: Ribeiro
authors.forename: José Luis
authors.initials: JL
authors.lastname: Copstein
authors.forename: Adávio
authors.initials: A
authors.lastname: de Oliveira E Silva
authors.forename: Luiz Augusto Carneiro
authors.initials: LA
authors.lastname: D'Albuquerque
authors.forename: Adriano Miziara
authors.initials: AM
authors.lastname: Gonzalez
mesh_terms: D000328:Adult; D005260:Female; D006503:Hepatic Veins; D006801:Humans; D008099:Liver / Q000033:anatomy & histology* / Q000098:blood supply; D016031:Liver Transplantation; D019520:Living Donors; D008297:Male; D008875:Middle Aged; D009929:Organ Size; D057234:Preoperative Period; D012189:Retrospective Studies; D055815:Young Adult