Urodynamic Study and Voiding (Catheterization) Diary Are Helpful for Guiding Precise CIC

How to individualize the selection of CIC frequency is a problem faced in the process of CIC treatment [1]. Adult patients with good bladder compliance generally perform CIC every 4–6 hours, and both too frequent and too infrequent will increase the chance of infection and injury. However, for patients with poor bladder compliance, in order to ensure the safe catheterization pressure of the bladder (<30 cmH2O), the frequency of catheterization may need to be increased. If you can urinate on your own (or rely on abdominal pressure/Credé maneuver), if the PVR is less than 100 mL or less than 10–20% of the maximum bladder capacity for a continuous period of time, you can extend the interval of CIC. Whether you want to understand bladder pressure or voiding, you can’t do without urodynamic testing and voiding (catheterization) diary [2, 3]. UDS can provide various parameters to help grasp the indications for CIC and guide “precision CIC” and efficacy evaluation [4]. For patients who still have some autonomous voiding function, recording voiding diaries and catheterization diaries in a fixed format can dynamically evaluate the efficacy, which is instructive for precise CIC. The bladder capacity of children of different ages varies greatly, and it cannot be evaluated by the standard of post-void residual (PVR) alone. UDS and voiding (catheterization) diaries are more important for the evaluation of children’s CIC.