Data extraction and analysis
The included studies were reviewed by two independent reviewers (Y.M.
and I.K.), and relevant data were extracted including the number of
performed human UTx cases, surgical approach of living-donor surgery
(open approach, laparoscopic approach, or robot-assisted approach),
surgical time, blood loss during donor surgery, the types and numbers of
removed veins (UV, UOV, or OV), operative complications, discharge
timing, and live birth after UTx.
The data were classified into open, laparoscopic, and robot-assisted
approaches for analysis.
The data were also classified and analysed according to whether the UV
was removed within each approach.