Evolution of male patients with detrusor underactivity and conservative treatment. Five-year follow-up.

Abstract Introduction The objective of the study was to compare the evolution of male patients with neurogenic detrusor underactivity (NDU) versus non-neurogenic DU (NNDU) and to establish risk factors to predict the need for clean intermittent catheterization ( C I C ) during the follow-up period. Material and methods Longitudinal, descriptive study of a cohort of patients diagnosed with DU, and 2496 urodynamic studies (2008–2018) were reviewed. Patients with DU (ICS 2002 and/or Bladder contraction index ( 200 mL or voiding efficiency (VE) Results DU was found in 172 (6.89%) men. Neurological causes were observed in 106 (61,6%) cases. Finally, 62 patients were included with a mean follow-up of 4.9 years (±2.6). Of these patients, 33 (53%) presented NDU and 29 (47%) NNDU. Six patients with NDU needed CIC versus none with NNDU (p = 0.04). Patients requiring CIC had higher PVR (p = 0.009) and lower VE (p = 0.017)), and there were also differences in terms of time until the need for CIC (log Rank: 0.009), which was 15.1 months [4–38]. In the multivariate analysis, none of the variables showed to be predictive of the need for CIC. Conclusions The most common cause of DU is neurologic injury. Patients with NDU remain stable without requiring CIC. We have not detected any risk factors that identify patients at risk of needing CIC.