Outflow Reconstruction in Right Lobe Living Donor Liver Transplantation

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

50 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-10-01

Study Completion Date

2021-05-31

Brief Summary

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Modified Right Lobe Graft(MRLG) is one of the most common used graft in liver transplantation .Anterior sector of allograft in MRLG usually congested to decrease this congestion tributaries of middle hepatic vein should be drained to inferior vena cava .

There are too many techniques available for this drainage using either cryopreserved or synthetic graft for vascular anastomosis .In this study we will compare between two different technique using ringed synthetic polytetrafluoroethylene (PTFE) graft to assess outflow adequacy in both technique.

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Detailed Description

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Comparative, prospective, observational, two-groups study. group 1 : Middle Hepatic Vein(MHV) will reconstructed by fashioning a PTFE graft of suitable size positioned parallel to the cut surface of the Modified Right Lobe Graft.This position theoretically make the PTFE graft in a position similar to MHV.Any vein \>4mm will be connected end to side fashion to the PTFE graft.The distal end of the PTFE graft will be closed by hemolock just distal to segment 5 vein .The proximal end of PTFE graft will be anastomosed to the recipient MHV orifice or MHV/lift orifice group 2: The end of segment 5 vein will be anastomosed to the end of suitable size PTFE graft which will be anastomosed to Inferior Vena Cava (IVC) directly and The end of segment 8 vein will be anastomosed to the end of suitable size PTFE graft which will be anastomosed to MHV or MHV/Lift orifice directly.the study will not be randomized .All operation will be done by tha same team .Choice of technique at surgeon discretion .Outflow adequecy will be assessed by Doppler Ultrasound intraoperatively and daily for 5 day once per week for 4 week and ,2,3,6,month.Progressive diminished flow or absent flow both will be considered as graft not patent .Markers of venous congestion will be considered as secondary outcome measure.

Conditions

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Liver Transplant

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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MHV reconstruction

Both ends of middle hepatic vein tributaries V8 and/or V5 of modified right lobe graft will be anastomosed to side of a single synthetic graft which will be anastomosed to recipient's middle/left hepatic vein orifice.

surgical technique

Intervention Type PROCEDURE

surgical reconstruction

Separate tributaries reconstruction

End of V8 middle hepatic vein tributary of modified right lobe graft; if present, will be anastomosed to end of a synthetic graft which will be anastomosed to recipient's middle/left hepatic vein orifice, and end of V5; if present; will be anastomosed to end of a synthetic graft which will be anastomosed to recipient's Inferior Vena Cava directly.

surgical technique

Intervention Type PROCEDURE

surgical reconstruction

Interventions

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surgical technique

surgical reconstruction

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* All patients undergoing Living Donor Liver Transplantation(LDLT) accepted according to hospital protocol
* Written informed consent obtained
* patient undergoing venous reconstruction either segment 5 or segment 8 vein or both