Cutting for Stone in Augmented Bladders—What is the Risk of Recurrence and is it Impacted by Treatment Modality?

Purpose: Bladder stones are common after bladder augmentation, often resulting in numerous procedures for recurrence. We sought to determine whether surgical technique and stone fragmentation are significant predictors of bladder stone recurrence after bladder augmentation.Materials and Methods: We retrospectively reviewed 107 patients treated for first bladder stones at our institution. Patient demographics, details of surgeries, stone therapy and recurrence were reviewed. Kaplan-Meier survival and Cox proportional hazards analysis were used to determine predictors of time to first stone recurrence.Results: Of 107 patients 55.1% were female and 79.4% had neuropathic bladder. Patients underwent augmentation at a median age of 8.0 years (range 2.4 to 22.8) and were followed for a median of 12.4 years (1.8 to 34). Segments used for augmentation included ileum (72.9% of cases), sigmoid (16.8%), cecum/ileocecum (9.4%) and other (ureter, stomach/ileum, 1.8%). Bladder neck procedures were performed in 63.6% of ...