Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 1 de 1
Filtrar
Más filtros











Base de datos
Intervalo de año de publicación
1.
Physiol Rep ; 12(13): e16131, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38942728

RESUMEN

The hemodynamic response during the transition from the supine to standing position in idiopathic atrial fibrillation (AF) patients is not completely understood. This study aimed to analyze the hemodynamic changes that occur during the head-up tilt test in idiopathic AF patients. We investigated the hemodynamic changes during the head-up tilt test with impedance cardiography in 40 AF patients (12 with AF rhythm-AFr and 28 with sinus rhythm-AFsr) and 38 non-AF controls. Patients with AFr had attenuated SVI decrease after standing when compared to AFsr and non-AF [ΔSVI in mL/m2: -1.3 (-3.4 to 1.7) vs. -6.4 (-17.3 to -0.1) vs. -11.8 (-18.7 to -8.0), respectively; p < 0.001]. PVRI decreased in AFr but increased in AFsr and non-AF [ΔPVRI in dyne.seg.m2/cm5: -477 (-1148 to 82.5) vs. 131 (-525 to 887) vs. 357 (-29 to 681), respectively; p < 0.01]. Similarly, compared with non-AF patients, AFr patients also had a greater HR and greater CI increase after standing. The haemodynamic response to orthostatic challenge suggests differential adaptations between patients with AF rhythm and those reverted to sinus rhythm or healthy controls. Characterizing the hemodynamic phenotype may be relevant for the individualized treatment of AF patients.


Asunto(s)
Adaptación Fisiológica , Fibrilación Atrial , Hemodinámica , Pruebas de Mesa Inclinada , Humanos , Fibrilación Atrial/fisiopatología , Fibrilación Atrial/diagnóstico , Masculino , Femenino , Pruebas de Mesa Inclinada/métodos , Persona de Mediana Edad , Anciano , Cardiografía de Impedancia/métodos , Frecuencia Cardíaca
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA