Persistence of the bulbocavernosus reflex during micturition in bladder hyperactivity of central neurological origin
Amarenco, G.; Kerdraon, J.; Adba, M.A.; Albert, T.; Denys, P.
Progres en Urologie Journal de l'Association Francaise d'Urologie et de la Societe Francaise d'Urologie 4(6): 959-965
1994
ISSN/ISBN: 1166-7087 PMID: 7874183 Document Number: 435171
The bulbocavernosus reflex (BCR) was evaluated before, during and after micturition in 35 patients. All the 19 patients with upper motor neuron lesions had a positive BCR during micturition. By comparison, 11/16 of the patients with a lower motor neuron lesion or with urogynecologic diseases did not have a BCR during micturition. The persistence of BCR during voiding seems to be a loss of central inhibition and maybe represent a good sign of upper motor neuron bladder dysfunction.