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Explorando el impacto de la edad en la función microvascular: información del registro de enfermedades
Abdullah Al Qaraghuli1, Kalyan R Chitturi2, Sant Kumar3
1Department of Internal Medicine, MedStar Washington Hospital Center, Washington, DC, USA.
International journal of cardiology
|September 4, 2025
Resumen
El avance de la edad se asocia con una reducción de la reserva de flujo coronario (CFR) en pacientes con angina sin enfermedad coronaria obstructiva (ANOCA). Sin embargo, la edad no tiene un impacto significativo en la prevalencia de la disfunción microvascular coronaria (DMC) o medidas relacionadas.
Área de la Ciencia:
- Medicina cardiovascular
- Cardiología Clínica
- Fisiología microvascular
Sus antecedentes:
- La disfunción microvascular coronaria (DMC) es un factor clave en la angina sin enfermedad coronaria obstructiva (ANOCA).
- El impacto del envejecimiento en la función microvascular coronaria no se comprende bien.
- Investigar los cambios relacionados con la edad en la función microvascular es crucial para comprender ANOCA.
Objetivo del estudio:
- Examinar la relación entre la edad del paciente y la función microvascular coronaria en individuos con ANOCA.
- Evaluar cómo los parámetros de la función microvascular afectan a los diferentes grupos de edad.
- Determinar si el aumento de la edad influye en la prevalencia de CMD.
Principales métodos:
- Análisis de 304 pacientes del Registro de Enfermedades Microvasculares Coronarias (CMDR).
- Evaluación microvascular invasiva mediante termodilución en bolo para medir la reserva de flujo coronario (CFR), el índice de resistencia microcirculatoria (IMR) y la reserva de resistencia microvascular (MRR).
- Estratificación de los pacientes en tres grupos de edad: < 50, 50-65 y > 65 años.
Principales resultados:
- La reserva de flujo coronario (CFR) disminuyó significativamente con el avance de la edad (p < 0,05).
- La prevalencia de la disfunción microvascular coronaria (DMC) fue similar en todos los grupos de edad (p = 0,16).
- No se observaron diferencias significativas en el índice de resistencia microcirculatoria (IMR) o en la reserva de resistencia microvascular (MRR) entre los grupos de edad.
Conclusiones:
- Si bien la reserva de flujo coronario disminuye con la edad, el aumento de la edad no altera significativamente la prevalencia de CMD en pacientes con ANOCA.
- Los parámetros microvasculares clave como la IMR y la MRR no están influenciados significativamente por la edad en esta cohorte.
- Estos hallazgos sugieren que otros factores más allá de la edad cronológica pueden ser más críticos en el desarrollo de CMD en ANOCA.
Palabras clave:
EnvejecimientoReserva de flujo coronarioDisfunción microvascular coronariaÍndice de resistencia de la microcirculaciónReserva de resistencia microvascularMás Videos Relacionados
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