Robotic-Assisted vs. Open Kidney Transplantation in Obese Living Donors
Overview
This retrospective study compared outcomes of robotic-assisted kidney transplantation (RAKT) versus traditional open kidney transplantation (OKT) in obese recipients. RAKT demonstrated significantly shorter operative times and comparable complication rates, suggesting it is a safe and effective alternative to OKT in this population.
Background
Kidney transplantation offers superior survival and quality of life compared to dialysis for end-stage renal failure patients. Traditional open kidney transplantation (OKT) is well established but associated with higher postoperative complications in obese patients. Minimally invasive robotic-assisted kidney transplantation (RAKT) has emerged to overcome technical challenges of laparoscopic approaches, enabling precise vascular anastomosis. However, data comparing RAKT and OKT specifically in obese recipients remain limited.
Data Highlights
Parameter
RAKT (n=46)
OKT (n=40)
p-value
Median BMI (kg/m2)
Not specified
Not specified
NS
Previous major abdominal surgery (%)
28.3%
65%
0.001
Median operative time (min)
140.0
215.5
<0.0001
Intraoperative major complications (%)
2.2%
2.5%
0.9
Open conversion rate (RAKT only)
2.2%
NA
NA
Key Findings
Both RAKT and OKT groups had comparable recipient age, gender, BMI, Charlson score, dialysis duration, and graft characteristics.
OKT recipients had a significantly higher rate of previous major abdominal surgery (65% vs. 28.3%, p=0.001).
Median operative time was significantly shorter in the RAKT group (140 vs. 215.5 minutes, p<0.0001).
Intraoperative major complication rates were similar between groups (RAKT 2.2% vs. OKT 2.5%, p=0.9).
Two RAKT cases (2.2%) required conversion to open surgery due to bleeding and venous thrombosis.
Clinical Implications
RAKT offers a minimally invasive alternative to OKT in obese kidney transplant recipients, with shorter operative times and comparable safety profiles. Surgeons may consider RAKT to reduce operative duration without increasing intraoperative complications. Patient selection remains important, especially considering prior abdominal surgeries.
Conclusion
Robotic-assisted kidney transplantation is a feasible and safe technique for obese living-donor recipients, providing shorter operative times and similar complication rates compared to traditional open surgery. These findings support the adoption of RAKT in appropriate obese patients.
References
Kuss et al. 1950s -- Description of conventional open kidney transplantation
World Health Organization 2016 -- Obesity definitions and prevalence
by Alice Rondot, Stephan Levy, Jérémy Mercier, Anne Sophie Bajeot, Arnaud Del Bello, Nassim Kamar, Xavier Gamé, Nicolas Doumerc, Federico Sallusto, Thomas Prudhomme
