Example of a volume-pressure tracing obtained from a one channel cystometry of a 22-year-old man with paraplegia T7, AIS A, 6 weeks after injury. It shows NDO, with high pressure (90 cm H₂O) leakage at volume of 120 ml (Wyndaele JJ, et al. Spinal Cord. 2009;47:526–30, with permission) [7]

Cystometry of a 32-year-old man with paraplegia T5, AIS-B, 6 months after SCI. Treatment with indwelling catheter for 6 months. Low bladder compliance is seen with high pressure development at low volume. The start pressure is 10 cm H₂O. The filling is stopped after pressure slowly rose and desire to void developed. Gradually the pressure has come down to 38 cm H₂O after stopping the inflow without leakage, indicating that the pressure rise is mainly due to loss of extensibility of the bladder wall = low compliance. Calculated compliance on this tracing from start to stop = 180 ml/28 cm H₂O = 6.2 ml/cm H₂0. (Wyndaele JJ, et al. Spinal Cord. 2009;47:526–30, with permission) [7]

Cystometry of a 57-year-old woman with paraplegia L1, AIS-A, 3 months after SCI. Leakage despite self-catheterization. The start pressure is 10 cm H₂O. Stress urinary incontinence demonstrated without bladder contraction. Cough leak point pressure 80–10 = 70 cm H₂O. From start to stop no pressure difference is seen, indicating a high compliance. (Wyndaele JJ, et al. Spinal Cord. 2009;47:526–30, with permission) [7]