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Conducción auricular prolongada. conducción auricular prolongada. Un importante factor predisponente para el
Circulation
|February 1, 1978
Resumen
La enfermedad de conducción auricular, caracterizada por tiempos intra-atrial e interatrial prolongados, es un factor de riesgo significativo para el desarrollo de aleteo auricular sostenido. Esta condición es parte de un espectro más amplio de enfermedades de conducción fibro-degenerativas.
Área de la Ciencia:
- Cardiología Cardiología.
- Electrofisiología y electrofisiología.
- Investigación médica Investigación médica.
Sus antecedentes:
- El aleteo auricular es una taquiarritmia supraventricular común.
- Los mecanismos electrofisiológicos subyacentes y los factores predisponentes para el aleteo auricular requieren una mayor aclaración.
- Las anomalías de conducción auricular se reconocen cada vez más en diversas afecciones cardíacas.
Objetivo del estudio:
- Investigar si la enfermedad de conducción auricular predispone a las personas al desarrollo de aleteo auricular sostenido.
- Para comparar los parámetros electrofisiológicos entre pacientes con aleteo auricular y un grupo de control sano.
Principales métodos:
- Se realizaron estudios electrofisiológicos en 21 pacientes con aleteo auricular espontáneo y sostenido durante el ritmo sinusal.
- Se incluyó un grupo de control de 11 individuos de la misma edad con electrocardiogramas normales y hallazgos de electrofisiología.
- Los pacientes con agrandamiento auricular se excluyeron para aislar los efectos de la enfermedad de la conducción.
Principales resultados:
- Los pacientes con aleteo auricular presentaron un tiempo de conducción intra-atrial derecho significativamente prolongado (50 ms frente a 37 ms, P < 0,05) y el tiempo de conducción interatrial (92 ms frente a 44 ms, P < 0,001).
- La duración media de la onda P también aumentó en el grupo de aleteo (132 ms frente a 112 ms, P < 0,01).
- Se observó una mayor incidencia de disfunción del nodo sinusal y enfermedad de la conducción ventricular en pacientes con aleteo auricular.
Conclusiones:
- Los hallazgos indican que la enfermedad de la conducción auricular está presente en pacientes que desarrollan aleteo auricular.
- La enfermedad de conducción auricular se identifica como un importante factor predisponente para el desarrollo de aleteo auricular.
- Esta condición es probablemente un componente del espectro más amplio de enfermedades de conducción fibro-degenerativas.
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