Timothy W. Brandt M.D., Ananya Tripathi MS3*, Carolyn A. Salter, M.D.:Joint Base Lewis-McChord, WA
(Presentation to be made by Dr. Timothy Brandt)

Objectives: At our institution, we have noted that many of our clinic uroflowmetry tests provide inadequate voided volumes during the evaluation, rendering the test non-diagnostic. Multiple reasons have been attributed to these issues, such as shy voiding, poor single void attempt in the clinical setting, and limitation on number of attempts due to clinic resources. In our search for a solution to this issue, novel technologies have been explored. Among these technologies, MyUroflow, an FDA-approved (510 k) app for at-home uroflowmetry for adult males was evaluated and implemented. This analysis focuses on the use of this novel technology at Madigan Army Medical Center, and its diagnostic prowess compared to the conventional standard clinic uroflowmetry.

Materials and Methods: Retrospective data was collected in men 18years or older who required uroflowmetry testing at our institution. In office uroflowmetry data was collected from 1JUN2022-1DEC2022 while data from the MyUroflow app was collected from 1DEC2022-1JUN2023. We selected different date ranges to reduce selection bias, since once the app was implemented, mostly elderly men continued to prefer in-office testing.The main outcome measured was adequacy of the test, as defined by avoided volume of ≥ 200mL. A chi-square test of independence was performed to compare the techniques.

Results: 232 men underwent uroflowmetry testing: 178 in-person and 54 MyUroflow patients. 49.4% of clinic patients compared to 81.5% of MyUroflow patients had sufficient voided volume to render diagnostic results (p <0.001).

Conclusions: MyUroflow is able to capture more useable data compared to in-office testing, with significantly more men having diagnostic volumes.This approach effectively overcomes several of these challenges inherent to in-office uroflowmetry, especially the limitation of a single low-volume void that is insufficient for an accurate flow rate.

Source of Funding: None

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