0000000001115000
AUTHOR
Alejandro Bellver
Heart rate response and functional capacity in patients with chronic heart failure with preserved ejection fraction
Aims The mechanisms of exercise intolerance in heart failure with preserved ejection fraction (HFpEF) are not yet elucidated. Chronotropic incompetence has emerged as a potential mechanism. We aimed to evaluate whether heart rate (HR) response to exercise is associated to functional capacity in patients with symptomatic HFpEF. Methods and results We prospectively studied 74 HFpEF patients [35.1% New York Heart Association Class III, 53% female, age (mean ± standard deviation) 72.5 ± 9.1 years, and 59.5% atrial fibrillation]. Functional performance was assessed by peak oxygen consumption (peak VO2 ). The mean (standard deviation) peak VO2 was 10 ± 2.8 mL/min/kg. The following chronotropic pa…
El consumo máximo de oxígeno predice los ingresos recurrentes por insuficiencia cardiaca con fracción de eyección conservada
Resumen Introduccion y objetivos La insuficiencia cardiaca con fraccion de eyeccion conservada (IC-FEc) es un sindrome muy prevalente con alto riesgo de morbilidad y mortalidad. Hasta la fecha, la evidencia acerca del papel del consumo maximo de oxigeno (VO 2max ) para predecir la carga de morbilidad en la IC-FEc es escasa. El objetivo de este estudio es evaluar la relacion entre el VO 2max y el riesgo de ingresos recurrentes de los pacientes con IC-FEc. Metodos A un total de 74 pacientes con IC-FEc sintomaticos y clinicamente estables, se les realizo una prueba de esfuerzo cardiopulmonar entre junio de 2012 y mayo de 2016. Se utilizo el metodo de regresion binomial negativa para determinar…
Peak Exercise Oxygen Uptake Predicts Recurrent Admissions in Heart Failure With Preserved Ejection Fraction
Introduction and objectives: Heart failure with preserved ejection fraction (HFpEF) is a highly prevalent syndrome with an elevated risk of morbidity and mortality. To date, there is scarce evidence on the role of peak exercise oxygen uptake (peak VO2) for predicting the morbidity burden in HFpEF. We sought to evaluate the association between peak VO2 and the risk of recurrent hospitalizations in patients with HFpEF. Methods: A total of 74 stable symptomatic patients with HFpEF underwent a cardiopulmonary exercise test between June 2012 and May 2016. A negative binomial regression method was used to determine the association between the percentage of predicted peak VO2 (pp-peak V02) and rec…
Inspiratory Muscle Function and Exercise Capacity in Patients With Heart Failure With Preserved Ejection Fraction
Background: Heart failure with preserved ejection fraction (HFpEF) is a clinical syndrome characterized by impaired exercise capacity resulting from dyspnea and fatigue. The pathophysiological mechanisms underlying the exercise intolerance in HFpEF are not well established. We sought to evaluate the effects of inspiratory muscle function on exercise tolerance in symptomatic patients with HFpEF. Methods and Results: A total of 74 stable symptomatic patients with HFpEF and New York Heart Association class II-III underwent a cardiopulmonary exercise test between June 2012 and May 2016. Inspiratory muscle weakness was defined as maximum inspiratory pressure (MIP) <70% of normal predicted values…
Heart rate response and functional capacity in patients with chronic heart failure with preserved ejection fraction
Aims: The mechanisms of exercise intolerance in heart failure with preserved ejection fraction (HFpEF) are not yet elucidated. Chronotropic incompetence has emerged as a potential mechanism. We aimed to evaluate whether heart rate (HR) response to exercise is associated to functional capacity in patients with symptomatic HFpEF. Methods and results We prospectively studied 74 HFpEF patients [35.1% New York Heart Association Class III, 53% fe- male, age (mean ± standard deviation) 72.5 ± 9.1 years, and 59.5% atrial fi brillation]. Functional performance was assessed by peak oxygen consumption (peak VO 2 ). The mean (standard deviation) peak VO 2 was 10 ± 2.8 mL/min/kg. The following chronotro…