Diagnostic accuracy of single channel cystometry for neurogenic bladder diagnosis following spinal cord injury: a pilot study

This study investigates the accuracy of single channel cystometry (SCC) in diagnosing neurogenic bladder in patients with spinal cord injury. SCC is a simpler method of measuring bladder pressure compared to the gold standard, urodynamic study (UDS). The study compares SCC results with UDS results to see how well SCC can identify neurogenic bladder. This is important because UDS is not always available in all centers, especially those with limited resources. The findings suggest that SCC can be a useful tool in diagnosing neurogenic bladder in centers where UDS is not readily accessible, but it may not be as reliable for diagnosing detrusor sphincter dyssynergia (DSD).

• 1
  SCC has a high sensitivity (100%) and negative predictive value (100%) for diagnosing neurogenic bladder, but a lower specificity (50%). This means that SCC is good at identifying patients who have neurogenic bladder and correctly ruling out those who don't, but it may have false positives.
• 2
  SCC's ability to detect detrusor sphincter dyssynergia (DSD) is limited, with only 55.55% of patients suspected of having DSD by SCC having comparable UDS findings.
• 3
  The mean cystometric capacity was slightly lower with SCC compared to UDS, and the mean maximum recorded detrusor pressures during filling and voiding/leaking phases were higher with SCC.