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Title: Urodynamic changes following intrathecal administration of morphine and fentanyl to dogs
Authors: El Bindary, E.M.
Abu El Nasr, L.M.
Issue Date: 2001
Language: English
Abstract: The effect of intrathecal [IT] injection of morphine and fentanyl on the urinary bladder was studied by ascending cystogram in 18 anaesthetized dogs. Examinations were performed before and 60 and 120 minutes after IT injection of saline [group I], 0.03 mg/kg morphine [group II] and 1.5 microg/kg fentanyl [group III]. A significant increase in maximal volume and compliance and a decrease in voiding pressure were observed, indicating relaxation of the detrusor muscle after IT administration of morphine or fentanyl. IT morphine produced greater and more prolonged bladder relaxation than IT fentanyl. We conclude that IT morphine and fentanyl cause variable degrees of urinary retention. As fentanyl produced milder and shorter bladder relaxation than morphine, it may be useful in patients with urinary disturbances
Description: 189-196
Keywords: Analgesics, Opioid
Drug Evaluation, Preclinical
Injections, Spinal
Urinary Bladder
Urinary Retention
Subject: Urodynamics
ISSN: 1020-3397
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Appears in Collections:EMRO Journal Articles (EMHJ)

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