Urodynamic utilization in the adult spina bifida patient: An institutional review.

Purpose: To characterize common clinical indications for urodynamic, a bladder function test, in adults with spina bifida.

Methods: A retrospective chart review was performed for 215 patients seen in an adult multidisciplinary spina bifida clinic who were registered with the National Spina Bifida Patient Registry from October 2011 to October 2018. Descriptive statistics were used for statistical comparisons.

Results: A total of 52 of 215 patients developed a clinical indication for urodynamics. Of these, 71 (33%) patients (8 of whom underwent testing twice) had urodynamics performed, resulting in a total of 79 urodynamic study encounters that were analyzed. Thirty-four (43%) urodynamic testing cases were performed due to a symptomatic change in lower urinary tract function; 14 (18%) were due to declining renal function or concern for upper tract deterioration based on imaging. The data obtained from urodynamic investigation led to new recommendations for urinary tract management in 59 (75%) of the urodynamic studies performed. A total of 32 of the 90 (35%) recommendations made were surgical interventions and 30 (33%) were for a change in medical management. Interestingly, 8 of the 18 (44%) routine or baseline urodynamic tests performed led to new recommendations in urinary tract management.

Conclusion: A total of 24%of patients in the multidisciplinary spina bifida clinic developed an indication for urodynamic testing over a 7-year period which resulted in new recommendations for urinary tract management in most. As more patients with spina bifida enter adulthood, the indications for urodynamic evaluation may become more defined, since the results often lead to alterations in bladder management.