Clinical Report: Robotic vs Open Bilateral Nephrectomy in ADPKD Adults
Overview
This study compares robotic bilateral nephrectomy (RNx) with open nephrectomy (ONx) in adults with autosomal dominant polycystic kidney disease (ADPKD). RNx demonstrated significantly lower estimated blood loss, shorter hospital stays, and fewer postoperative complications compared to ONx, despite similar operative times.
Background
ADPKD is a common hereditary kidney disorder characterized by cyst formation leading to renal failure, with many patients progressing to end-stage renal disease by age 70. Nephrectomy is often indicated to create space for transplant or to manage symptoms and infections. Traditional open bilateral nephrectomy is associated with high morbidity, prompting interest in minimally invasive approaches such as laparoscopic and robotic surgeries. Robotic nephrectomy may offer technical advantages for large kidneys while reducing complications.
Data Highlights
Parameter
Robotic Nephrectomy (RNx)
Open Nephrectomy (ONx)
p-value
Number of patients
17
15
-
Median age (years)
50.4 (IQR 45.5–57.1)
57.9 (IQR 54.1–65.3)
0.03
Median largest right kidney dimension (cm)
24.0
27.7
0.04
Median largest left kidney dimension (cm)
21.2
24.3
0.07
Median operative time (minutes)
311
279
0.13
Median estimated blood loss (mL)
100 (IQR 50–200)
500 (IQR 175–850)
0.005
Median length of stay (days)
3 (IQR 2.5–6.5)
8 (IQR 4–11)
0.02
Postoperative complications
11.8%
66.7%
0.003
Blood transfusion required
5.9%
66.7%
<0.001
Key Findings
RNx patients were younger with a median age of 50.4 years versus 57.9 years in ONx (p=0.03).
RNx had significantly lower estimated blood loss (median 100 mL) compared to ONx (median 500 mL; p=0.005).
Length of hospital stay was shorter for RNx (median 3 days) versus ONx (median 8 days; p=0.02).
Postoperative complications occurred in 11.8% of RNx patients compared to 66.7% in ONx (p=0.003).
Blood transfusions were required in only 5.9% of RNx patients versus 66.7% of ONx patients (p<0.001).
RNx group had no visceral injuries, whereas 13.3% of ONx patients sustained visceral injuries requiring additional interventions.
Clinical Implications
Robotic bilateral nephrectomy offers a safer alternative to open surgery in ADPKD patients, with reduced blood loss, fewer complications, and shorter hospitalization. This minimally invasive approach may be particularly advantageous in managing large polycystic kidneys, improving perioperative outcomes and recovery times.
Conclusion
Robotic bilateral nephrectomy in ADPKD patients demonstrates superior perioperative outcomes compared to open surgery, supporting its adoption as a preferred surgical approach in suitable candidates.
References
Harris et al. 2023 -- Comparative Analysis of Surgical Results: Robotic Bilateral Nephrectomy Versus Open Surgery in Adults with Polycystic Kidney Disease
