Patients' Characteristics and Urodynamic Parameters of Pressure-Flow Study Failure in Our Institution

The document presents findings from a study that aimed to understand the characteristics of patients who fail pressure-flow studies (PFS) for bladder function. Out of 560 patients, 47 could not void during PFS, resulting in a failure rate of 8.4%. The study found no significant differences in bladder capacity or detrusor overactivity between patients who failed PFS and those who did not. However, patients who failed PFS showed lower maximum flow rates (Qmax) and higher post-void residual volumes (PVR) than those who were successful. Additionally, the inability to void in a uroflowmeter might be a risk factor for PFS failure. The study concluded that while the exact reasons for PFS failure are still unknown, certain urodynamic parameters are associated with failure, which could be important for understanding the cause of PFS failure.