652 Relationship of exercise capacity with left ventricular and atrial performance in heart failure
نویسندگان
چکیده
منابع مشابه
Capacity and Exercise Hemodynamics in Patients with Left Ventricular Failure
Resting hemodynamics improve during vasodilator administration in patients with congestive heart failure (CHF), but the effects of these agents on exercise is unknown. Twenty-two patients with class II or III CHF performed bicycle exercise to symptomatic maximum before and 90 minutes after random doubleblind administration of oral hydralazine (100 mg) and isosorbide dinitrate (40 mg) (11 patien...
متن کاملIncreased Left Ventricular Stiffness Impairs Exercise Capacity in Patients with Heart Failure Symptoms Despite Normal Left Ventricular Ejection Fraction
Aims. Several mechanisms can be involved in the development of exercise intolerance in patients with heart failure despite normal left ventricular ejection fraction (HFNEF) and may include impairment of left ventricular (LV) stiffness. We therefore investigated the influence of LV stiffness, determined by pressure-volume loop analysis obtained by conductance catheterization, on exercise capacit...
متن کاملComparison of exercise performance in patients with chronic severe heart failure versus left ventricular assist devices.
BACKGROUND Left ventricular assist devices (LVADs) are frequently used as a bridge to cardiac transplantation and may be useful as long-term therapy. The purpose of this study was to compare the exercise performance of LVAD patients with that of ambulatory heart failure patients. METHODS AND RESULTS Exercise testing with hemodynamic and respiratory gas measurements was performed in 65 congest...
متن کاملChanges in mitral regurgitation and left ventricular geometry during exercise affect exercise capacity in patients with systolic heart failure.
AIMS exercise may dramatically change the extent of functional mitral regurgitation (MR) and left ventricular (LV) geometry in patients with chronic heart failure (CHF). We hypothesized that dynamic changes in MR and LV geometry would affect exercise capacity. METHODS AND RESULTS this study included 30 CHF patients with functional MR who underwent symptom-limited bicycle exercise stress echoc...
متن کاملInfluence of Left Atrial Function on Exercise Capacity and Left Ventricular Function in Patients With Heart Failure and Preserved Ejection Fraction.
BACKGROUND Although left atrial (LA) dysfunction is common in heart failure with preserved ejection fraction (HFpEF), its functional implications beyond the reflection of left ventricular (LV) pathology are not well understood. The aim of this study was to further characterize LA function in HFpEF patients. METHODS AND RESULTS We performed cardiac magnetic resonance myocardial feature trackin...
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ژورنال
عنوان ژورنال: European Journal of Echocardiography
سال: 2006
ISSN: 1525-2167
DOI: 10.1016/s1525-2167(06)60375-2