Laparoscopic versus open partial nephrectomy for the treatment of pathological T1N0M0 renal cell carcinoma: a 5-year survival rate

Sompol Permpongkosol, Herman S Bagga, Frederico R Romero, Myrna Sroka, Thomas W Jarrett, Louis R Kavoussi
Journal of Urology 2006, 176 (5): 1984-8; discussion 1988-9

PURPOSE: We retrospectively compared the oncological adequacy of laparoscopic partial nephrectomy to that of open partial nephrectomy in the treatment of patients with pathological stage T1N0M0 renal cell carcinoma.

MATERIALS AND METHODS: A total of 143 patients with stage T1N0M0 renal tumors confirmed by pathological examination of the surgical specimen underwent partial nephrectomy between January 1996 and June 2004 with a followup of at least 1.5 years. Of these patients 85 were treated laparoscopically and the remaining 58 underwent open surgery. Medical and operative records were retrospectively reviewed with emphasis on tumor recurrence and survival. Statistical analysis was performed using Kaplan-Meier analysis.

RESULTS: The mean followup for the laparoscopy group was 40.4 +/- 18.0 months. A total of 83 patients survived. Of these patients 2 patients experienced disease recurrence within 18 to 46.2 months, 1 patient died of cancer metastasis to brain within 29.7 months and 1 died of an unrelated cause. Seeding of the port sites did not develop in any of the patients. The 5-year disease-free and actuarial survival rates for this group were 91.4%, and 93.8%, respectively. The 58 patients who underwent open surgery had a mean followup of 49.68 +/- 28.84 months. A total of 53 patients survived without any disease recurrence, 1 survived with recurrence within 8 months, 1 survived with metastasis within 49 months and 3 died of unrelated causes. The 5-year disease-free and patient survival rates for this group were 97.6% and 95.8%, respectively. Kaplan-Meier disease-free survival and patient survival analysis revealed no significant differences between the laparoscopic and open partial nephrectomy groups.

CONCLUSIONS: Laparoscopic partial nephrectomy is an alternative technique with mid-range oncological results comparable to open partial nephrectomy in patients with localized pathological stage T1N0M0 renal cell carcinoma.

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