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El intervalo PR y los riesgos de síncope recurrente y mortalidad por cualquier causa en pacientes que presentan
Asger Knudsen1, Johannes Jan Struijk1, Sam Riahi2,3
1Department of Health Science and Technology Aalborg University Aalborg Denmark.
Journal of the American Heart Association
|February 11, 2026
Resumen
Un corto intervalo de PR en pacientes con síncope aumenta el riesgo de mortalidad por cualquier causa. Un largo intervalo de PR está relacionado con una mayor tasa de síncope recurrente. Este estudio pone de relieve la importancia del intervalo PR en la evaluación del riesgo de síncope.
Área de la Ciencia:
- Cardiología Cardiología.
- Electrofisiología Clínica Electrofisiología Clínica.
- Salud Pública La salud pública.
Sus antecedentes:
- La evaluación del riesgo de síncope a menudo pasa por alto la duración del intervalo PR.
- El corto intervalo PR está relacionado con la fibrilación auricular y la mortalidad.
- Comprender el papel del intervalo PR en los resultados de síncope es crucial.
Objetivo del estudio:
- Investigar la asociación entre la duración del intervalo PR y la mortalidad por cualquier causa en pacientes con síncope.
- Para explorar la relación entre la duración del intervalo PR y la síncope recurrente.
Principales métodos:
- Análisis de ECGs de 52.038 pacientes con síncope dentro de las 24 horas de admisión.
- Los pacientes fueron categorizados en grupos de intervalos PR cortos (<120 ms), normales (120-200 ms) o largos (>200 ms).
- Exclusión de pacientes con anomalías del ECG o comorbilidades que afectan el intervalo PR o los resultados.
Principales resultados:
- Intervalo corto de PR asociado con una relación de riesgo de 1,50 para la mortalidad por cualquier causa (P <0,001).
- El largo intervalo de PR no mostró asociación con la mortalidad por cualquier causa (HR 1.02, P = 0.3566).
- El largo intervalo de PR está vinculado a una relación de riesgo de 1,14 para el síncope recurrente (P <0,001).
Conclusiones:
- El corto intervalo de PR es un predictor significativo del aumento de la mortalidad por todas las causas en pacientes con síncope.
- El largo intervalo de PR se asocia con una mayor incidencia de síncope recurrente.
- La duración del intervalo PR debe considerarse en la estratificación del riesgo de síncope.
Palabras clave:
El intervalo PR es el intervalo PR.la mortalidad por mortalidad.Síncope recurrente y recurrente.Análisis de la supervivencia Análisis de la supervivenciasíncope El ECG de la síncope es el ECG.Más Videos Relacionados
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