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Causes of elevated cardiac troponin I in patients with normal coronary angiogram / 대한내과학회지
Korean Journal of Medicine ; : 487-492, 2005.
Artículo en Coreano | WPRIM | ID: wpr-75499
ABSTRACT

BACKGROUND:

Cardiac troponin I (cTnI) is most recently described and has nearly absolute myocardial tissue specificity, as well as high sensitivity. But an increased value for cTnI that indicates myocardial injury is not always synonym of myocardial infarction or ischemia due to coronary artery disease.

METHODS:

Retrospective follow-up study for whom underwent coronary angiography for suspected coronary artery disease was done if they had an elevated cTnI value and angiographically normal or minimal disease.

RESULTS:

33 patients were qualified. Cut-off value for elevated cTnI was 0.06 ng/mL. Increased cTnI values were attributed to severe congestive heart failure in 7 patients, variant angina in 7 patients, myocarditis in 5 patients, pericarditis in 1 patient, severe myocardial bridge in 1 patient, rhabdomyolysis in 1 patient and cerebral infarction in 1 patient. Tachycardia was precipitating cause in 4 patients (sinus tachycardia, paroxysmal supraventricular tachycardia, paroxysmal atrial fibrillation and sustained ventricular tachycardia for each), two of whom had hemodynamic compromise. 2 of 33 patients had no identifiable cause for a rise in cTnI value. There was no acute myocardial infarction at 42+/-34 weeks follow-up.

CONCLUSIONS:

Although cTnI is a sensitive and specific marker of myocardial injury, an elevation of cTnI value may have a cause other than myocardial infarction or ischemia and may occur without significant angiographic coronary artery disease.
Asunto(s)

Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Especificidad de Órganos / Pericarditis / Rabdomiólisis / Fibrilación Atrial / Taquicardia / Taquicardia Paroxística / Troponina / Enfermedad de la Arteria Coronaria / Taquicardia Supraventricular / Infarto Cerebral Tipo de estudio: Estudio de etiología / Estudio observacional / Estudio pronóstico Límite: Humanos Idioma: Coreano Revista: Korean Journal of Medicine Año: 2005 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Especificidad de Órganos / Pericarditis / Rabdomiólisis / Fibrilación Atrial / Taquicardia / Taquicardia Paroxística / Troponina / Enfermedad de la Arteria Coronaria / Taquicardia Supraventricular / Infarto Cerebral Tipo de estudio: Estudio de etiología / Estudio observacional / Estudio pronóstico Límite: Humanos Idioma: Coreano Revista: Korean Journal of Medicine Año: 2005 Tipo del documento: Artículo