Evaluation of serum cardiac troponin-I concentrations for diagnosis of infective endocarditis in dogs.
J Vet Intern Med
; 35(5): 2094-2101, 2021 Sep.
Article
en En
| MEDLINE
| ID: mdl-34374458
ABSTRACT
BACKGROUND:
Infective endocarditis (IE) in dogs is associated with severe disease and a high case fatality rate but often presents with nonspecific clinical signs. HYPOTHESIS/OBJECTIVES:
Serum concentration of cardiac troponin-I (cTnI) is elevated in dogs with IE and can differentiate dogs with IE from dogs with other diseases with similar clinical features. Concentration of serum cTnI is negatively correlated with survival time in dogs with IE. ANIMALS Seventy-two client-owned dogs; 29 with IE, 27 with stage-B myxomatous mitral valve disease (MMVD), and 16 with immune-mediated disease (IMD).METHODS:
Retrospective clinical cohort study. Concentration of serum cTnI was measured in all dogs at time of diagnosis. Clinical findings and echocardiographic interpretation were also recorded. Statistical analyses included Kruskal-Wallis test, pairwise Mann-Whitney U tests, receiver operator characteristic, and Cox proportional hazards.RESULTS:
Serum concentration of cTnI was significantly higher in the IE group (0.69 ng/mL [0.03-80.8]) than in the MMVD (0.05 ng/mL [0.02-0.11], P < .001) and IMD groups (0.05 ng/mL [0.03-0.57], P < .001). Increased cTnI was a moderately accurate predictor of IE (area under the curve 0.857 (95% confidence interval [CI] 0.745-0.968, P < .001). A cTnI cutoff of 0.625 ng/mL had 100% specificity (95% CI 90%-100%) and 52% sensitivity (95% CI 33%-70%) in this study sample. There was no association between cTnI concentration and survival time in dogs with IE (hazard ratio 1.013, 95% CI 0.993-1.034, P = .2). CONCLUSIONS AND CLINICAL IMPORTANCE Cardiac troponin-I concentrations are higher in dogs with IE compared to dogs with preclinical MMVD or IMD. In dogs with a compatible clinical presentation, serum cTnI concentrations >0.625 ng/mL are supportive of IE.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Enfermedades de los Perros
/
Endocarditis
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Incidence_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Animals
Idioma:
En
Revista:
J Vet Intern Med
Asunto de la revista:
MEDICINA INTERNA
/
MEDICINA VETERINARIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Reino Unido