Renal vascular patterns assessment before robot-assisted partial nephrectomy: a video-based correlation with hilum...

Area of Science:

• Urology
• Surgical Innovation
• Medical Imaging Analysis

Background:

• Robot-assisted partial nephrectomy (RAPN) is a complex procedure.
• Surgical video review (SVR) is an emerging tool for outcome assessment.
• Factors influencing renal hilum control (RHC) in RAPN are not well understood.

Purpose of the Study:

• To utilize SVR to identify renal vascular patterns.
• To determine factors influencing renal hilum control (RHC) during RAPN.

Main Methods:

• Reviewed 60 RAPN surgical videos.
• Measured time to hilum control (THC) and total operation time (TOT).
• Analyzed patient and surgical factors correlated with THC using SPSS software.

Main Results:

• Median THC was 22.7 minutes (15.1% of TOT).
• Previous renal surgery and complex vascular anatomy (e.g., artery bifurcation behind IVC, multiple renal arteries) correlated with longer THC.
• No significant difference in THC based on surgeon experience or surgical approach.

Conclusions:

• THC is a small fraction of total RAPN time.
• Complex renal vasculature and prior surgery can prolong THC.
• Understanding vascular patterns aids patient-specific planning and optimizes RAPN strategies.