Comparative Analysis of Robotic vs Open Partial Cytoreductive Nephrectomy in mRCC
Overview
This study analyzed 491 metastatic renal cell carcinoma patients undergoing partial cytoreductive nephrectomy (PCN) from 2008 to 2019, comparing robotic (RPCN) and open (OPCN) approaches. RPCN rates increased significantly over time and were associated with lower intraoperative complications, pulmonary complications, blood transfusions, and shorter hospital stays compared to OPCN.
Background
Partial cytoreductive nephrectomy is a treatment option for metastatic renal cell carcinoma and can be performed via open or robotic surgery. Robotic surgeries generally have fewer adverse in-hospital outcomes, but it was unclear if this advantage applies specifically to PCN. This study utilized the National Inpatient Sample database to compare adverse in-hospital outcomes between robotic and open PCN approaches and to assess trends in RPCN utilization.
Data Highlights
Outcome
RPCN (%)
OPCN (%)
p-value
Intraoperative complications
<3
9
0.02
Pulmonary complications
6
14
0.02
Blood transfusions
<5
14
0.004
Median length of stay (days)
2
4
<0.001
Overall complications
Not significantly different
Not significantly different
>0.05
In-hospital mortality
Not significantly different
Not significantly different
>0.1
Key Findings
RPCN utilization increased from 4.2% in 2008 to 42.5% in 2019, with an annual increase of 10% (p < 0.001).
RPCN patients had significantly lower intraoperative complication rates compared to OPCN (less than 3% vs. 9%, p = 0.02).
Pulmonary complications were less frequent in RPCN (6%) than OPCN (14%, p = 0.02).
Blood transfusions occurred less often in RPCN patients (less than 5%) compared to OPCN (14%, p = 0.004).
RPCN was associated with a shorter median hospital length of stay (2 days vs. 4 days, p < 0.001).
No significant differences were observed in overall complications, cardiac, vascular, gastrointestinal complications, total hospital charges, or in-hospital mortality between RPCN and OPCN.
Clinical Implications
The increasing adoption of robotic partial cytoreductive nephrectomy reflects its favorable safety profile in metastatic renal cell carcinoma patients. Clinicians may consider RPCN to reduce intraoperative and pulmonary complications, decrease the need for blood transfusions, and shorten hospital stays without increasing mortality risk. These findings support the integration of robotic techniques in appropriate surgical candidates.
Conclusion
Robotic partial cytoreductive nephrectomy has become more prevalent and is independently associated with improved in-hospital outcomes compared to open surgery in metastatic renal cell carcinoma. These advantages include fewer complications and shorter hospitalization, highlighting the potential benefits of robotic approaches in this setting.
References
National Inpatient Sample (NIS) Database, AHRQ 2008-2019 -- Data Source
Deyo et al. 1992 -- Charlson Comorbidity Index Modification
Comparative Studies on Robotic vs Open Surgery Outcomes (References 8-10)
by Quynh Chi Le, Mattia Longoni, Andrea Marmiroli, Fabian Falkenbach, Calogero Catanzaro, Michele Nicolazzini, Federico Polverino, Jordan A. Goyal, Fred Saad, Riccardo Schiavina, Luca Fabio Carmignani, Alberto Briganti, Nicola Longo, Markus Graefen, Carlotta Palumbo, Miriam Traumann, Felix K.-H. Chun, Pierre I. Karakiewicz
