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The 3-D Volumetric Measurement Including Resected Specimen for Predicting Renal Function AfterRobot-assisted Partial
Yosuke Mitsui1, Takuya Sadahira1, Motoo Araki1
1Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1, Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
Urology
|January 1, 2019
Summary
A 3D reconstruction technique accurately predicts postoperative renal function after robot-assisted partial nephrectomy. This method, assessing resected cortex margin volume, offers an alternative to renal scintigraphy for evaluating kidney function post-surgery.
Area of Science:
- Urology
- Nephrology
- Surgical Oncology
Background:
- Robot-assisted partial nephrectomy (RAPN) is a standard treatment for kidney tumors.
- Accurate prediction of postoperative renal function is crucial for patient management.
- Current methods like renal scintigraphy have limitations.
Purpose of the Study:
- To investigate the relationship between resected cortex margin volume and postoperative renal function after RAPN.
- To determine predictors of renal function following RAPN.
- To evaluate a 3D reconstruction technique for assessing resected specimen volume.
Main Methods:
- Retrospective analysis of 114 patients undergoing RAPN.
- 3D reconstruction of resected specimens to calculate cortex volume split.
- Comparison of predicted estimated glomerular filtration rate (eGFR) with actual eGFR at multiple time points.
Main Results:
- A strong correlation was found between 3D volumetric assessment and renal scintigraphy.
- Predicted eGFR showed strong correlation with actual postoperative eGFR (r > 0.89).
- Preoperative relative renal function and total cortex margin volume were independent risk factors for decreased postoperative function.
Conclusions:
- 3D volumetric assessment of resected cortex margin is a precise alternative to renal scintigraphy for predicting postoperative renal function.
- Healthy cortex margin volume is an independent risk factor for declining renal function post-RAPN.
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