Differential Diagnosis of Muscle Tremor and Paresis

Johnson, Amy L.; Furr, Martin; Reed, Stephen M.

doi:10.1002/9781118993712.ch13

Cited by 1 publication

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References 27 publications

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“…In a number of hosts, myopathy or paralysis has been associated with various tick species. Tick paralysis caused by Ixodes holocyclus is well documented in Australia, typically showing progressive lower motor neuron signs, weakness, ataxia and recumbency (Johnson 2008;Tee & Feary 2012:181-185), causing rapid ascending paralysis (Bootes 1962:68-69) and killing foals (Bootes 1962:68-69). With I. holocyclus, a salivary toxin is implicated (Grattan-Smith et al 1997:1975-1987 with envenomation most common in small, young equids.…”

Section: Introductionmentioning

confidence: 99%

Putative Otobius megnini -associated clinical signs in horses in South Africa (2012–2018)

Miller¹

2020

Journal of the South African Veterinary Association

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Otobius megnini has been associated with certain clinical conditions in horses in both California and Mexico. A number of cases similar to those described previously have been identified by the author in South Africa. This case report summarises these cases to demonstrate that the clinical condition occurs readily in South Africa and may be increasing in occurrence. The disease has minimal coverage in the literature making it more likely that a veterinarian, unfamiliar with the disease, will miss the diagnosis. The author would like to make veterinarians aware of this as a potential differential diagnosis. This study is a retrospective review of clinical data. Clinical records of patients with similar clinical signs and treatment were reviewed and grouped together as relevant cases for this case report. Ten cases of O. megnini associated neuromuscular dysfunction are reported, suggesting a link between the occurrence of the tick and the clinical condition. Clinical signs include third eyelid prolapse, localised muscle fasciculations, elevated heart rate and limb stamping. Serum chemistry changes commonly show increased aspartate aminotransferase and creatine kinase enzymes activities. The occurrence of the ticks within South Africa and the increasing number of cases presented demonstrate the need for more investigation into the pathophysiology of this condition.

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Section: Introductionmentioning

confidence: 99%

Putative Otobius megnini -associated clinical signs in horses in South Africa (2012–2018)

Miller¹

2020

Journal of the South African Veterinary Association

View full text Add to dashboard Cite

show abstract

Differential Diagnosis of Muscle Tremor and Paresis

Cited by 1 publication

References 27 publications

Putative Otobius megnini -associated clinical signs in horses in South Africa (2012–2018)

Putative Otobius megnini -associated clinical signs in horses in South Africa (2012–2018)

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