Long QT syndrome in dogs with tick toxicity (Ixodes holocyclus).
Aust Vet J
; 80(10): 611-6, 2002 Oct.
Article
em En
| MEDLINE
| ID: mdl-12465812
ABSTRACT
OBJECTIVE:
To evaluate cardiac electrical function in dogs with tick toxicity.DESIGN:
A prospective clinical investigation of 39 client-owned dogs treated for naturally occurring tick toxicity. PROCEDURE An ECG was performed on each dog on several occasions; at admission to hospital with tick toxicity, 24 h later, at discharge from hospital when clinically normal and approximately 12 months later.RESULTS:
The mean QT interval corrected for heart rate (QTc) was prolonged at admission, 24 h and at discharge compared to the QTc measured 12 months later. T wave morphology was altered in dogs at admission. All other parameters were within normal limits.CONCLUSIONS:
The prolonged QTc interval and altered T wave morphology of dogs with tick toxicity reflects delayed cardiac repolarisation and is comparable with long QT syndrome (LQTS) in people who are predisposed to polymorphic ventricular tachycardia and sudden death. Resolution of ECG changes lagged behind clinical recovery.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Arritmias Cardíacas
/
Toxicoses por Carrapatos
/
Ixodes
/
Doenças do Cão
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Animals
País/Região como assunto:
Oceania
Idioma:
En
Revista:
Aust Vet J
Ano de publicação:
2002
Tipo de documento:
Article