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Niveles elevados de troponina T y características de la lesión en síndromes coronarios agudos sin elevación de ST
Kentaro Okamatsu1, Masamichi Takano, Shunta Sakai
1Department of Internal Medicine, Nippon Medical School, Chiba Hokusoh Hospital, Inba, Chiba, Japan.
Circulation
|January 21, 2004
Resumen
Los niveles elevados de troponina T en los síndromes coronarios agudos sin elevación de ST (NSTE-ACS) indican fuertemente la presencia de trombo coronario. Este hallazgo, confirmado por la angioscopia coronaria, destaca el trombo como un factor clave en los resultados de NSTE-ACS.
Área de la Ciencia:
- Cardiología Cardiología.
- Los biomarcadores también son biomarcadores.
- Cardiología Intervencionista Cardiología intervencionista.
Sus antecedentes:
- Los niveles elevados de troponina T en los síndromes coronarios agudos sin elevación de ST (NSTE-ACS) predicen resultados adversos.
- La troponina T puede mejorar la eficacia de las terapias antitrombóticas.
- Hipótesis: El aumento de la troponina T en el NSTE-ACS significa trombo de la lesión culpable.
Objetivo del estudio:
- Investigar la asociación entre los niveles elevados de troponina T y la presencia de trombo coronario en pacientes con NSTE-ACS.
- Para validar la hipótesis utilizando la angioscopia coronaria.
Principales métodos:
- Se estudiaron 57 pacientes NSTE-ACS sometidos a angioscopía preintervencionista.
- Los pacientes fueron clasificados en grupos de troponina positiva (> 0,1 ng/mL) y troponina negativa.
- Lesiones culpables evaluadas para trombo, placa amarilla y complejidad a través de la angioscopia.
Principales resultados:
- 22 pacientes fueron positivos para la troponina, 35 fueron negativos para la troponina.
- El trombo coronario y el flujo TIMI se correlacionan con el aumento de troponina T.
- El análisis multivariado identificó el trombo coronario (detectado por angioscopia) como el único predictor independiente de la troponina T elevada (OR 22.1, P = 0.0046).
Conclusiones:
- Los niveles elevados de troponina T en el NSTE-ACS están fuertemente asociados con la presencia de trombo coronario.
- La angioscopia coronaria confirmó esta asociación.
- La troponina T sirve como un indicador significativo de la carga trombótica en el NSTE-ACS.
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