Artificial cardiac pacemaker placement in dogs with a cohort of myocarditis suspects and association of ultrasensitive cardiac troponin I with survival.
J Vet Cardiol
; 22: 84-95, 2019 Apr.
Article
en En
| MEDLINE
| ID: mdl-30573438
ABSTRACT
INTRODUCTION:
Artificial cardiac pacemakers (APs) are a common treatment for symptomatic bradyarrhythmias in dogs, some of which may be triggered by underlying myocarditis. Severely elevated cardiac troponin I (cTnI) concentrations support a diagnosis of myocarditis. The association of ultrasensitive-cTnI (US-cTnI) concentration with survival in a large cohort of dogs receiving APs is not described. ANIMALS, MATERIALS, ANDMETHODS:
The study included 110 dogs receiving APs over a 5-year period. Medical records were retrospectively reviewed to characterize the entire population receiving APs, with further analysis in dogs with preprocedural US-cTnI concentrations (n = 64) classified as normal/group 1 (n = 11), mildly to moderately elevated/group 2 (n = 27), and severely elevated/myocarditis suspects/group 3 (n = 26).RESULTS:
Median survival time was 1079 days for the entire population, 1167 days for group 2, 949 days for group 3, and not met in group 1. There was not a statistically significant difference in survival between group 2 and group 3. Overall, US-cTnI had a mild, negative association with survival. Age had a stronger negative association. Infectious etiologies were identified in a minority of group 3 cases. A possible association between severely elevated US-cTnI and a sudden death outcome was noted.CONCLUSIONS:
The negative association of US-cTnI with survival outcomes was mild, with age having a larger effect. Although a sudden death outcome may be seen more commonly in myocarditis suspects, group 3 survival time was similar to that of the entire canine population. Plausible infectious causes of myocarditis were infrequently identified.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Marcapaso Artificial
/
Troponina I
/
Enfermedades de los Perros
/
Miocarditis
Tipo de estudio:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Animals
País/Región como asunto:
America do norte
Idioma:
En
Revista:
J Vet Cardiol
Asunto de la revista:
CARDIOLOGIA
/
MEDICINA VETERINARIA
Año:
2019
Tipo del documento:
Article