Piggyback liver transplantation : intra-operative hemodynamics, post-operative renal and respiratory complications / Alterações hemodinamicas, renais e respiratorias no periodo peri-operatorio do transplante de figado com a tecnica de piggyback
AUTOR(ES)
Marilia Iracema Leonardi
DATA DE PUBLICAÇÃO
2006
RESUMO
The technique of orthtotopic liver transplantation (OLT) with inferior vena cava (IVC) preservation, known as "piggyback", assures hemodynamic stability during recipient hepatectomy, which avoids tissue hypoperfusion. However post-operative complications, mainly renal and respiratory, have been described. The study is retrospective and aims to evaluate the aplicability of "piggyback" OLT and analyse post-operative complications more directly related to the surgical technique. From September 1991 to December 2005, 275 patients with mean age of 43±13 years were submitted to OLT and divided into four groups: Group ST: no preservation of retro-hepatic IVC (n=37); Group PB3: piggyback OLT and IVC reconstruction with three recipient hepatic veins (n=117); Group PB2: piggyback OLT and IVC reconstruction with two recipient hepatic veins (n=101); Group PBLL: piggyback OLT and IVC reconstruction with cavotomy and lateralateral anastomosis (n=20). Gropus were compared by Chi square test and exact test, with p<0.05. There was no difference regarding sex and chronic liver disease etiology. The majority of them are Child-Pugh class C and the mean age of group PB2 was higher than the others. Piggyback OLT colud be employed in 91,5% of patients. MAP decreased significantly in group PB2 an PBL at 15 minutes after reperfusion (p<0.001). MPAP showed greater increase in goup PBL (p=0.008) 15 minutes after graft reperfusion. Mean values of CVP, PCP and CO are comparable during recipient surgery. ST group showed longer warm ischemia and operative times compared to the others (p<0.01), as well as more blood products requirements. Cold ischemia time was similar among groups. Ascites prevalence was very low in the four groups. There is evident tendency to a higher prevalence of respiratory complications in group PBLL (p=0.054). Need for reoperation due to bleeding and hemodialyses were similar in all groups. Mean survival time was 78.2% on PO 30, without difference among groups.
ASSUNTO(S)
veia cava inferior - cirurgia hepatectomy hepatectomia - metodos figado - transplante anastomose cirurgica anastomosis liver transportation surgical vena cava inferior complicações pos-operatorias postoperative complications
