Rhythm disturbances associated with lidocaine administration in four dogs with supraventricular tachyarrhythmias.
J Vet Emerg Crit Care (San Antonio)
; 32(1): 106-112, 2022 Jan.
Article
em En
| MEDLINE
| ID: mdl-34699678
ABSTRACT
OBJECTIVE:
To describe arrhythmias associated with administration of lidocaine in dogs treated for supraventricular tachyarrhythmias. CASE SUMMARIES Four dogs with recent-onset supraventricular tachyarrhythmias 3 dogs had atrial fibrillation (AF), and 1 had focal atrial tachycardia (FAT), which was thought to be AF at the time of assessment. The substrate of the supraventricular tachyarrhythmia was considered to be due to primary cardiomyopathy in 1 dog, high vagal tone in 2 dogs, and the change in hemodynamics from heavy sedation in 1 dog. Pharmacological cardioversion using lidocaine was only successful in the 2 dogs with vagally mediated AF. In these 2 cases, lidocaine administration resulted in a paroxysmal atrial flutter that was self-limiting and quickly led to sinus rhythm within 10 seconds in 1 dog but did not change over a 5-minute interval and required additional boluses in another dog. In the latter case, the dog showed severe bradycardia for 17.5 seconds prior to achieving sinus rhythm. The 2 unsuccessful cases both developed ventricular arrhythmias shortly after the lidocaine administration, with 1 case degenerating into ventricular fibrillation and cardiac arrest. NEW OR UNIQUE INFORMATION PROVIDED Arrhythmias associated with lidocaine should be considered when treating dogs with supraventricular tachyarrhythmia.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fibrilação Atrial
/
Doenças do Cão
Tipo de estudo:
Risk_factors_studies
Limite:
Animals
Idioma:
En
Revista:
J Vet Emerg Crit Care (San Antonio)
Assunto da revista:
MEDICINA DE EMERGENCIA
/
MEDICINA VETERINARIA
/
TERAPIA INTENSIVA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Nova Zelândia