RESUMO
OBJECTIVE: To explore the efficacies of extended pelvic lymph node dissection (e-PLND) before or after radical cystectomy (RC). METHODS: From January 2003 to January 2013, a total of 107 patients underwent e-PLND plus RC. And their relevant clinical data were reviewed. Their median age was (62 ± 10) years. The e-PLND were divided into 10 regions and 6 groups according to the anatomic sites. Forty-seven (43.9%) underwent RC after e-PLND (group A) and 60 (56.1%) had RC before e-PLND (group B). Two groups were compared for operative duration, numbers of lymph nodes removed, metastatic rates of lymph node, dissected lymph node positive rates and operative complications. The results were analyzed with Chi-square or Student's test. RESULTS: Clinicopathological characteristics were comparable for two groups (P > 0.05). The mean operative durations of e-PLND were similar in both groups ( (83 ± 27) vs (78 ± 24) min , P > 0.05). The mean operative durations of RC were significantly shorter in group A than those in group B ( (79 ± 41) vs (113 ± 44) min, P < 0.01) . The mean number of lymph nodes removed (25.5 ± 9.7 vs 29.0 ± 8.4) and the mean number of lymph nodes removed at internal iliac (5.7 ± 2.9 vs 7.2 ± 3.5) and presacral (1.3 ± 1.1 vs 2.5 ± 1.6) regions were significantly fewer in group A than those in group B (all P < 0.05). The metastatic rates of lymph node (34.0% (16/47) vs 31.7% (19/60)), dissected lymph node positive rates (9.0% (108/1197) vs 7.5% (130/1743)) and operative complications (23.4% (11/47) vs 20.0% (12/60)) were similar in both groups (all P > 0.05). CONCLUSION: RC is performed preferably after e-PLND, and internal iliac and presacral area should be dissected for additional lymph nodes after RC.