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Preoperative predictors of surgical approach for partial nephrectomy
Jay D Raman1, Benjamin Smith, Jamie Messer
1Division of Urology, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania 17033-0850, USA.
The Canadian Journal of Urology
|October 25, 2011
Summary
Renal hilar location is the primary factor influencing the choice between open and laparoscopic partial nephrectomy. While other factors like BMI and GFR do not preclude minimally invasive approaches, complex hilar tumors often require open surgery.
Area of Science:
- Urology
- Surgical Oncology
- Nephrology
Background:
- Partial nephrectomy is a key treatment for renal tumors.
- Selecting the optimal surgical approach (open vs. laparoscopic) is crucial.
- Preoperative patient and tumor characteristics influence surgical decision-making.
Purpose of the Study:
- To identify preoperative parameters predicting the operative approach for partial nephrectomy.
- To determine factors associated with selecting open versus laparoscopic partial nephrectomy.
Main Methods:
- Retrospective review of 229 partial nephrectomy cases.
- Evaluation of clinical data and axial imaging.
- Statistical analysis including univariate and logistic regression models.
Main Results:
- Renal hilar location was the only significant predictor for open partial nephrectomy (OPN) (OR 2.63).
- Factors like preoperative GFR, tumor size, collecting system involvement, and multifocality were associated with OPN on univariate analysis but not in the final model.
- Laparoscopic partial nephrectomy (LPN) was performed in 99 patients, while OPN was used for 130 patients.
Conclusions:
- Minimally invasive partial nephrectomy is feasible for many patients, even with factors like higher BMI, lower GFR, prior surgery, or endophytic tumors.
- Renal hilar tumors are significantly more likely to be managed with OPN due to their complexity.
- Surgical expertise and training in laparoscopic techniques may also influence approach selection.
