Left Ventricular Function and Exercise Capacity
نویسندگان
چکیده
منابع مشابه
Effects of catheter ablation of idiopathic ventricular ectopic beats on left ventricular function and exercise capacity.
BACKGROUND Frequent ventricular ectopic beats (VEB) in patients without significant cardiac disease are usually classified as benign arrhythmia. However, they may alter cardiac performance. RF ablation can effectively eliminate VEB. AIM To evaluate the effects of RF ablation on selected haemodynamic parameters of left ventricular (LV) systolic and diastolic function and exercise capacity in p...
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Introduction: The aim of the present study was to evaluate the effect of exercise training and L-arginine supplementation on oxidative stress and systolic ventricular function in rats with myocardial infarction (MI). Methods: Four weeks after the surgically-induced MI, 40 male Wistar rats were randomly assigned to the following 4 groups (n=10): MI-sedentary control (Sed) MI-exercise (Ex) MI-...
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Strenuous exercise without warm-up has been shown to produce ischemia-like electrocardiographic (ECG) abnormalities in 60-70% of healthy subjects. These abnormalities appeared to be related to the development of an unfavorable myocardial supply/demand balance and, in chronically instrumented dogs, to transient decreases in coronary blood flow. A mechanism involving subendocardial ischemia has b...
متن کاملCapacity 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 کاملLeft ventricular regional function and maximal exercise capacity in aortic stenosis.
AIMS The objective assessment of maximal exercise capacity (MEC) using peak oxygen consumption (VO2) measurement may be helpful in the management of asymptomatic aortic stenosis (AS) patients. However, the relationship between left ventricular (LV) function and MEC has been relatively unexplored. We aimed to identify which echocardiographic parameters of LV systolic function can predict MEC in ...
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ژورنال
عنوان ژورنال: JAMA
سال: 2009
ISSN: 0098-7484
DOI: 10.1001/jama.2008.1022