Initial Experience in Laparoscopic Partial Nephrectomy for Renal Tumor with Clamping of Renal Vessels

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Abstract
Purpose: To describe our initial experience with laparoscopic partial nephrectomy (LPN) with clamping of the renal vessels before tumor excision and suturing of the renal parenchyma. Patients and Methods: Between July 2001 and April 2002, 19 consecutive patients underwent transperitoneal LPN in our institution, 14 for tumors 1), oncocytoma in 3 patients, and angiomyolipoma in 5 patients. The mean tumor grade was 2. The mean tumor size was 25.8 ± 11.6 mm with a mean tumor-free margin of 2.6 ± 2.4 mm. The median follow-up is 3 months, so oncologic outcome cannot be assessed. Conclusion: The technique of LPN can be standardized and should be proposed for small tumors when they are not invading the hilum. Clamping the renal pedicle allows better vision for more accurate tumor excision with a safety margin and hemostatic suturing of the parenchymal defect, resulting in less blood loss and shorter operative time, parameters that improve with experience.