Pseudo‐orthostatic tremor in a cat

Abstract An 11‐month‐old male castrated shorthaired cat was presented with a tremor in both pelvic limbs, which only occurred when standing (ie, countering gravity) or during active extension of the stifle. General clinical and neurological examinations were normal aside from the tremor of the pelvi...

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Main Authors: Marende M. deGier, Dian Schuil, Laurent Garosi, Mark Lowrie, Koen M. Santifort
Format: Article
Language:English
Published: Wiley 2025-05-01
Series:Journal of Veterinary Internal Medicine
Subjects:
Online Access:https://doi.org/10.1111/jvim.17290
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author Marende M. deGier
Dian Schuil
Laurent Garosi
Mark Lowrie
Koen M. Santifort
author_facet Marende M. deGier
Dian Schuil
Laurent Garosi
Mark Lowrie
Koen M. Santifort
author_sort Marende M. deGier
collection DOAJ
description Abstract An 11‐month‐old male castrated shorthaired cat was presented with a tremor in both pelvic limbs, which only occurred when standing (ie, countering gravity) or during active extension of the stifle. General clinical and neurological examinations were normal aside from the tremor of the pelvic limbs, which disappeared on performing a weight‐bearing lifting test. Needle electromyography of both pelvic limbs in the conscious state confirmed a low‐frequency (6 Hz) tremor. The cat was diagnosed with pseudo‐orthostatic tremor. The tremor amplitude waxed and waned over time. The cat remained ambulatory and playful, but often assumed lateral recumbency and seemed to have difficulty jumping. Treatment with gabapentin (10‐20 mg/kg PO q8h) for 3 weeks followed by clonazepam (0.1 mg/kg PO q12h) for 1 day (with unacceptable adverse effects) did not result in improvement.
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institution OA Journals
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publishDate 2025-05-01
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series Journal of Veterinary Internal Medicine
spelling doaj-art-650b68ff5580425294c68952f80653ca2025-08-20T02:34:06ZengWileyJournal of Veterinary Internal Medicine0891-66401939-16762025-05-01393n/an/a10.1111/jvim.17290Pseudo‐orthostatic tremor in a catMarende M. deGier0Dian Schuil1Laurent Garosi2Mark Lowrie3Koen M. Santifort4Department of Neurology Evidensia Small Animal Hospital Hart van Brabant Waalwijk The NetherlandsDierenkliniek Zelhem Zelhem The NetherlandsVet Oracle Teleradiology Norfolk UKMovement Referrals Preston UKDepartment of Neurology Evidensia Small Animal Hospital Hart van Brabant Waalwijk The NetherlandsAbstract An 11‐month‐old male castrated shorthaired cat was presented with a tremor in both pelvic limbs, which only occurred when standing (ie, countering gravity) or during active extension of the stifle. General clinical and neurological examinations were normal aside from the tremor of the pelvic limbs, which disappeared on performing a weight‐bearing lifting test. Needle electromyography of both pelvic limbs in the conscious state confirmed a low‐frequency (6 Hz) tremor. The cat was diagnosed with pseudo‐orthostatic tremor. The tremor amplitude waxed and waned over time. The cat remained ambulatory and playful, but often assumed lateral recumbency and seemed to have difficulty jumping. Treatment with gabapentin (10‐20 mg/kg PO q8h) for 3 weeks followed by clonazepam (0.1 mg/kg PO q12h) for 1 day (with unacceptable adverse effects) did not result in improvement.https://doi.org/10.1111/jvim.17290felineinvoluntary movementmovement disorderpostural tremorslow orthostatic tremortremor frequency
spellingShingle Marende M. deGier
Dian Schuil
Laurent Garosi
Mark Lowrie
Koen M. Santifort
Pseudo‐orthostatic tremor in a cat
Journal of Veterinary Internal Medicine
feline
involuntary movement
movement disorder
postural tremor
slow orthostatic tremor
tremor frequency
title Pseudo‐orthostatic tremor in a cat
title_full Pseudo‐orthostatic tremor in a cat
title_fullStr Pseudo‐orthostatic tremor in a cat
title_full_unstemmed Pseudo‐orthostatic tremor in a cat
title_short Pseudo‐orthostatic tremor in a cat
title_sort pseudo orthostatic tremor in a cat
topic feline
involuntary movement
movement disorder
postural tremor
slow orthostatic tremor
tremor frequency
url https://doi.org/10.1111/jvim.17290
work_keys_str_mv AT marendemdegier pseudoorthostatictremorinacat
AT dianschuil pseudoorthostatictremorinacat
AT laurentgarosi pseudoorthostatictremorinacat
AT marklowrie pseudoorthostatictremorinacat
AT koenmsantifort pseudoorthostatictremorinacat