Long-Term Recurrence Risk, Metastatic Potential, and Length of Cystoscopic Surveillance of Low-Grade Non-Muscle-Invasive Bladder Cancer.

Purpose: Patients with Ta low-grade (LG) NMIBC rarely develop metastases or die of it. Long-term data are scant and length of follow-up poorly defined.

Materials And Methods: This retrospective study included 521 patients diagnosed with primary TaLG NMIBC (n = 491) or papillary urothelial neoplasm of low malignant potential (n = 30) from 1989 to 2019 at an academic center.

Long-term outcomes and cost savings of office fulguration of papillary Ta low-grade bladder cancer.

Objectives: To assess whether office-based fulguration (OF) under local anaesthesia for small, recurrent, pathological Ta low-grade (LG) non-muscle-invasive bladder cancer (NMIBC) is an effective alternative to transurethral resection of bladder tumour (TURBT), avoiding the costs and risks of procedure, and anesthesia.

Patients And Methods: Of 521 patients with primary TaLG NMIBC, this retrospective study included 270 patients who underwent OF during follow-up for recurrent, small, papillary LG-appearing tumours at a university centre (University Health Network, University of Toronto, Canada). We assessed the cumulative incidence of cancer-specific mortality (CSM) and disease progression (to MIBC or metastases), as well as possible direct cost savings.