Objective: Laparoscopic partial nephrectomy (LPN) is most commonly performed for renal tumors<4 cm in size. In this study, we present our 13 cases underwent transperitoneal laparoscopic partial nephrectomy (TLPN) for renal tumors larger than 4 cm.
Materials and Methods: Between March 2008 and November 2011, 13 patients underwent laparoscopic partial nephrectomy (LPN) for renal tumors larger than 4 cm. Mean age was 59,4 (range 51 – 72) years. Of patients, 7 were male and 6 were female. Transperitoneal approach was used in all patients. Abdominal CT scan and chest X – ray/thorax CT scan were performed at 6th month and annually thereafter.
Results: Mean tumor size was 5 (range 4.1-7) cm. Mean duration of warm ischemia and operation were 29,3 (range 20-38) min and 205 (range 160 – 255) min, respectively. The collecting system was opened in 4 patients. Mean estimated blood loss during operation was 295 (range210- 420) mL. Mean hospital stay was 4.7 (range 3-9) days. Pathological examination has revealed renal cell carcinoma in 13 cases (9 with clear cell, 3 with papillary cell, 1 with chromophobe cell). The surgical margin was negative in all cases. No local recurrence or distant metastasis were seen in any patients.
Conclusion: In our initial experience, laparoscopic partial nephrectomy is a safe and feasible tecnique for renal tumors larger than 4 cm. Although future studies with extended follow-up are required to confirm these outcomes.
Key Words: Laparoscopy, large renal tumor, partial nephrectomy.
Abstract
Objective: Laparoscopic partial nephrectomy (LPN) is most commonly performed for renal tumors<4 cm in size. In this study, we present our 13 cases underwent transperitoneal laparoscopic partial nephrectomy (TLPN) for renal tumors larger than 4 cm.
Materials and Methods: Between March 2008 and November 2011, 13 patients underwent laparoscopic partial nephrectomy (LPN) for renal tumors larger than 4 cm. Mean age was 59,4 (range 51 – 72) years. Of patients, 7 were male and 6 were female. Transperitoneal approach was used in all patients. Abdominal CT scan and chest X – ray/thorax CT scan were performed at 6th month and annually thereafter.
Results: Mean tumor size was 5 (range 4.1-7) cm. Mean duration of warm ischemia and operation were 29,3 (range 20-38) min and 205 (range 160 – 255) min, respectively. The collecting system was opened in 4 patients. Mean estimated blood loss during operation was 295 (range210- 420) mL. Mean hospital stay was 4.7 (range 3-9) days. Pathological examination has revealed renal cell carcinoma in 13 cases (9 with clear cell, 3 with papillary cell, 1 with chromophobe cell). The surgical margin was negative in all cases. No local recurrence or distant metastasis were seen in any patients.
Conclusion: In our initial experience, laparoscopic partial nephrectomy is a safe and feasible tecnique for renal tumors larger than 4 cm. Although future studies with extended follow-up are required to confirm these outcomes.
Key Words: Laparoscopy, large renal tumor, partial nephrectomy.