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Modulation of portal graft inflow: a necessity in adult living-donor liver transplantation?
- Source :
-
Annals of surgery [Ann Surg] 2003 Mar; Vol. 237 (3), pp. 429-36. - Publication Year :
- 2003
-
Abstract
- Objective: To evaluate the clinical significance of modulating the recipient portal inflow (rPVF) through perioperative ligation of the splenic artery in adult living-donor liver transplantation (ALDLTx) by focusing on vascular complications, intractable ascites production, and the prevention of small-for-size syndrome (SFSS).<br />Summary Background Data: In ALDLTx, portal graft flow is enhanced to at least twice the donor value, raising the total liver inflow. Recipient hepatic arterial flow (rHAF) is lower than expected. Portal hyperperfusion of small grafts in larger recipients is thought to be one of the main causes of posttransplant graft dysfunction/SFSS.<br />Methods: Seventeen ALDLTx were reviewed for a minimum of 2 months. Patients were divided retrospectively into two groups: G1 (n = 7), without modulation of rPVF, and G2 (n = 10), with splenic artery ligation to decrease rPVF perioperatively. Donor and recipient hepatic hemodynamics were evaluated against graft function and outcome, including correlations between rPVF, graft weight, graft:recipient body weight ratio, and recipient weight.<br />Results: Following portal and arterial reperfusion, mean rPVF and rPVF/graft weight were much higher than in the donors, whereas mean rHAF and rHAF/graft weight were much lower. No differences were found between groups, except for rPVF and rHAF, which were much more higher and lower, respectively, before splenic artery ligation. In G1 patients, SFSS was seen in two patients and vascular complications occurred in two others. In G2 patients, splenic artery ligation permitted a significant decrease in rPVF, an improvement in rHAF, and the resolution of refractory ascites. Neither SFSS nor vascular complications were seen in G2 patients.<br />Conclusions: When a suboptimal graft:recipient body weight ratio is accompanied by high rPVF in ALDLTx, the portal flow should be modulated perioperatively; splenic artery ligation is a simple and safe method that is sufficient to allow this modulation in most patients.
- Subjects :
- Adult
Blood Flow Velocity
Body Weight
Female
Hepatic Artery physiology
Humans
Ligation
Male
Middle Aged
Organ Size
Portal Vein physiology
Retrospective Studies
Liver Circulation
Liver Transplantation adverse effects
Liver Transplantation methods
Living Donors
Portal Vein transplantation
Splenic Artery surgery
Subjects
Details
- Language :
- English
- ISSN :
- 0003-4932
- Volume :
- 237
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Annals of surgery
- Publication Type :
- Academic Journal
- Accession number :
- 12616129
- Full Text :
- https://doi.org/10.1097/01.SLA.0000055277.78876.B7