Retrospective Study on Prognostic Factors for Post-void Residual Volume Following Intravesical Injection of Botulinum Toxin for Severe Overactive Bladder: A Urodynamic Investigation.

Based on our analysis, we observed that some patients experienced an increase in PVR volume after receiving onabotulinumA injections, which is an important safety consideration. In addition to the PVR volume increase, we also recorded other potential adverse effects reported by patients, such as urinary retention, urinary tract infections, and bladder discomfort.