Right and left living donor nephrectomy and operative approach: A systematic review and meta-analysis of donor and recipient outcomes.

INTRODUCTION

The left kidney is preferable in living donor nephrectomy (LDN). We aimed to investigate the safety and efficacy of right versus left LDN in both donor and recipients. A subgroup analysis of outcomes based on operative approach was also performed.

METHODS

A systematic review and meta-analysis was performed as per PRISMA guidelines. Outcomes of interest were extracted from included studies and analysed.

RESULTS

There were 31 studies included with 79,912 transplants. Left LDN was performed in 84.1 % of cases and right LDN in 15.9 %. Right LDN was associated with reduced EBL (P = 0.010), intra-operative complications (P = 0.030) and operative time (P = 0.006), but higher rates of conversion to open surgery (1.4 % vs 0.9 %). However, right living donor renal transplantation (LDRT) had higher rates of delayed graft function (5.4 % vs 4.2 %, P < 0.0001) and graft loss (2.6 % vs 1.1 %, P < 0.0001). Graft survival was reduced in right LDRT at 3 years (92.0 % vs 94.2 %, P = 0.001) but comparable to left LDRT at 1- and 5-years. Otherwise, donor and recipient peri-operative outcomes and serum creatinine levels were comparable in both groups. Hand-assisted LDN was associated with shorter warm ischaemia time (P < 0.0001) but longer length of stay (LOS) than laparoscopic LDN and robotic-assisted LDN (P < 0.0001). RA-LDN was associated with less EBL and shorter LOS (both P < 0.0001) while patients who underwent L-LDN had a lower mean serum creatinine (SCr) level on discharge (P < 0.0001).

CONCLUSION

Right LDRT has higher rates of delayed graft function and graft loss compared to left LDRT. Minimally-invasive surgical approaches potentially offer improved outcomes but further large-scale randomised controlled trials studies are required to confirm this finding.