Impact of preoperative chemotherapy on pathologic nodal status in muscle-invasive bladder cancer: optimal lymphadenectomy in the preoperative chemotherapy era.

To investigate the impact of preoperative chemotherapy (pCTX) on pathologic nodal (pN) status and evaluate the optimal lymphadenectomy method according to clinical nodal (cN) status in patients with muscle-invasive bladder cancer who received pCTX.