Effect of Intravenous Morphine Injection on Neurological Examination of Dogs With Thoracolumbar Intervertebral Disk Extrusion

Objectives: We aimed to determine the effect of intravenous morphine injection on the modified Frankel scores of dogs with thoracolumbar intervertebral disk extrusion (IVDE).Methods: This was a prospective, blinded, randomized, and placebo-controlled study. We included dogs with a presumptive diagno...

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Main Authors: Aurore Fouhety, Aurelie Bruwier, Jean Bassanino, Alexandra Gabriel, Jean-François Boursier, Anne-Sophie Bedu, Dimitri Leperlier
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-10-01
Series:Frontiers in Veterinary Science
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fvets.2020.571778/full
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author Aurore Fouhety
Aurelie Bruwier
Jean Bassanino
Alexandra Gabriel
Jean-François Boursier
Anne-Sophie Bedu
Dimitri Leperlier
author_facet Aurore Fouhety
Aurelie Bruwier
Jean Bassanino
Alexandra Gabriel
Jean-François Boursier
Anne-Sophie Bedu
Dimitri Leperlier
author_sort Aurore Fouhety
collection DOAJ
description Objectives: We aimed to determine the effect of intravenous morphine injection on the modified Frankel scores of dogs with thoracolumbar intervertebral disk extrusion (IVDE).Methods: This was a prospective, blinded, randomized, and placebo-controlled study. We included dogs with a presumptive diagnosis of thoracolumbar IVDE that did not undergo analgesic, anti-inflammatory, or sedative treatment within the last 12 h. A neurological examination was performed and the deficits were graded using the modified Frankel score (MFS). Subsequently, each dog was randomly allocated to receive an intravenous injection of either morphine or placebo. After 30 min, the dogs were re-evaluated by the same veterinary officer who was blinded to the contents of the injections. Dogs were included in the study if IVDE was ultimately confirmed by surgery within one week of initial presentation.Results: Among the 79 dogs initially enrolled, 62 dogs met the inclusion criteria. Among them, thirty-two dogs received intravenous morphine injections and there was no difference between the pre- and post-injection modified Frankel scores. Thirty dogs received an intravenous placebo injection. One dog had a worsening of the MFS by one grade in the post-injection examination.Clinical Significance: In dogs with thoracolumbar intervertebral disk extrusion, an intravenous injection of morphine does not affect the modified Frankel score after 30 min compared with the pre-injection value. These findings support the use of an analgesic morphine dose if the neurological examination can be performed 30 min or later after the injection.
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spelling doaj.art-e07e2e0656d34bc88bf539e5def244ac2022-12-22T00:23:59ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692020-10-01710.3389/fvets.2020.571778571778Effect of Intravenous Morphine Injection on Neurological Examination of Dogs With Thoracolumbar Intervertebral Disk ExtrusionAurore Fouhety0Aurelie Bruwier1Jean Bassanino2Alexandra Gabriel3Jean-François Boursier4Anne-Sophie Bedu5Dimitri Leperlier6Centre Hospitalier Vétérinaire Pommery, Reims, FranceCentre Hospitalier Vétérinaire Pommery, Reims, FranceCentre Hospitalier Vétérinaire Pommery, Reims, FranceCentre Hospitalier Vétérinaire Pommery, Reims, FranceClinique Vétérinaire TouraineVet, Rochecorbon, FranceCentre Hospitalier Vétérinaire Pommery, Reims, FranceCentre Hospitalier Vétérinaire Pommery, Reims, FranceObjectives: We aimed to determine the effect of intravenous morphine injection on the modified Frankel scores of dogs with thoracolumbar intervertebral disk extrusion (IVDE).Methods: This was a prospective, blinded, randomized, and placebo-controlled study. We included dogs with a presumptive diagnosis of thoracolumbar IVDE that did not undergo analgesic, anti-inflammatory, or sedative treatment within the last 12 h. A neurological examination was performed and the deficits were graded using the modified Frankel score (MFS). Subsequently, each dog was randomly allocated to receive an intravenous injection of either morphine or placebo. After 30 min, the dogs were re-evaluated by the same veterinary officer who was blinded to the contents of the injections. Dogs were included in the study if IVDE was ultimately confirmed by surgery within one week of initial presentation.Results: Among the 79 dogs initially enrolled, 62 dogs met the inclusion criteria. Among them, thirty-two dogs received intravenous morphine injections and there was no difference between the pre- and post-injection modified Frankel scores. Thirty dogs received an intravenous placebo injection. One dog had a worsening of the MFS by one grade in the post-injection examination.Clinical Significance: In dogs with thoracolumbar intervertebral disk extrusion, an intravenous injection of morphine does not affect the modified Frankel score after 30 min compared with the pre-injection value. These findings support the use of an analgesic morphine dose if the neurological examination can be performed 30 min or later after the injection.https://www.frontiersin.org/article/10.3389/fvets.2020.571778/fullanalgesiamodified frankel scoreintervertebral disk diseasecaninemorphine
spellingShingle Aurore Fouhety
Aurelie Bruwier
Jean Bassanino
Alexandra Gabriel
Jean-François Boursier
Anne-Sophie Bedu
Dimitri Leperlier
Effect of Intravenous Morphine Injection on Neurological Examination of Dogs With Thoracolumbar Intervertebral Disk Extrusion
Frontiers in Veterinary Science
analgesia
modified frankel score
intervertebral disk disease
canine
morphine
title Effect of Intravenous Morphine Injection on Neurological Examination of Dogs With Thoracolumbar Intervertebral Disk Extrusion
title_full Effect of Intravenous Morphine Injection on Neurological Examination of Dogs With Thoracolumbar Intervertebral Disk Extrusion
title_fullStr Effect of Intravenous Morphine Injection on Neurological Examination of Dogs With Thoracolumbar Intervertebral Disk Extrusion
title_full_unstemmed Effect of Intravenous Morphine Injection on Neurological Examination of Dogs With Thoracolumbar Intervertebral Disk Extrusion
title_short Effect of Intravenous Morphine Injection on Neurological Examination of Dogs With Thoracolumbar Intervertebral Disk Extrusion
title_sort effect of intravenous morphine injection on neurological examination of dogs with thoracolumbar intervertebral disk extrusion
topic analgesia
modified frankel score
intervertebral disk disease
canine
morphine
url https://www.frontiersin.org/article/10.3389/fvets.2020.571778/full
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