Chemotherapy With or Without Surgery in Treating Patients With Bladder Cancer

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Infusing chemotherapy drugs directly into the bladder may kill more cancer cells. It is not yet known if surgery followed by chemotherapy is more effective than chemotherapy alone in treating bladder cancer. PURPOSE: Randomized phase III trial to compare the effectiveness of chemotherapy alone with that of transurethral resection followed by chemotherapy in treating patients who have bladder cancer.