Neurourology pp 177-182 | Cite as

Uro-neurophysiological Evaluation of the Neurogenic Bladder

  • Magdy M. HassounaEmail author
  • Abdullah A. Ghazi
  • Ali J. Alabbad


Neurophysiological tests are useful in diagnosis of neurogenic bladder. Electromyography (EMG) of the Pelvic Floor and Sphincter Muscles is a useful neurophysiological test in diagnosing lower motor neuron lesions in the sacral segments, it is useful in demonstrating increased external urethral sphincter EMG activity concomitant with detrusor contraction in patients with detrusor sphincter dyssynergia in some patients with Parkinson’s and multiple system atrophy. Nerve conduction studies of pudendal nerve are performed to studies pelvic floor function. The most commonly sacral reflexes tested during neurophysiologic testing of the pelvic floor are the bulbocavernosus reflex and the anal reflex, it tests the integrity of the spinal cord–mediated reflex arc involving Sacral nerves 2–4 and may be absent in the presence of sacral cord or peripheral nerve abnormalities. Sympathetic skin response (SSR) is directly evaluating the pelvic sympathetic innervation include assessment of the urethro-anal and bladder-anal reflexes. It is a useful test in the evaluation of neuropathy involving non-myelinated nerve fibers.


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Magdy M. Hassouna
    • 1
    Email author
  • Abdullah A. Ghazi
    • 2
  • Ali J. Alabbad
    • 3
  1. 1.Toronto Western Hospital, University of TorontoTorontoCanada
  2. 2.King Saud Medical CityRiyadhSaudi Arabia
  3. 3.University of TorontoTorontoCanada

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