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Related Experiment Videos

Investigational techniques

C J Fowler1

  • 1Institute of Neurology, University College London, Department of Uro-Neurology, National Hospital for Neurology and Neurosurgery, London, UK. c.fowler@ion.ucl.ac.uk

European Urology
|August 15, 1998
PubMed
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Clinical neurophysiology offers valuable tools for investigating the pelvic floor and neurogenic bladder. Sphincter electromyography (EMG) aids in diagnosing conditions like multiple system atrophy and identifying causes of urinary retention.

Area of Science:

  • Clinical neurophysiology
  • Urology
  • Neurology

Background:

  • Pelvic floor dysfunction and neurogenic bladder are significant clinical challenges.
  • Accurate diagnosis is crucial for effective management.

Purpose of the Study:

  • To review the utility of various clinical neurophysiological techniques in evaluating the pelvic floor and neurogenic bladder.
  • To highlight the specific applications and limitations of these methods.

Main Methods:

  • Review of clinical neurophysiological techniques, including sphincter electromyography (EMG) and nerve conduction velocity (NCV) tests.
  • Focus on the diagnostic value of EMG in specific neurological conditions and urinary dysfunction.

Main Results:

Related Experiment Videos

  • Sphincter EMG is highly valuable for identifying multiple system atrophy in parkinsonism patients.
  • EMG of the urethral sphincter is essential for diagnosing abnormal spontaneous activity causing urinary retention in young women.
  • Nerve conduction velocity tests have limited value due to testing fibre conduction rather than innervation levels and focusing on large myelinated fibers.

    • Conclusions:

    • Sphincter EMG is a key neurophysiological tool for diagnosing specific pelvic floor and neurogenic bladder disorders.
    • The limitations of NCV testing in assessing autonomic innervation necessitate the use of more targeted methods like EMG.