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Showing 1 to 20 of 59 for “"ventricular function"”.
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Association of Fitness and Obesity with Right Ventricular Function
The general metadata -- e.g., title, author, abstract, subject headings, etc. -- is publicly available, but access to the submitted files is restricted to UT Southwestern campus access and/or authorized UT Southwestern users.
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Surface reconstruction and display of left ventricular function for pet images
… shown to be an effective way of presenting the functional behavior of the myocardium.
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Reproducibility and sensitivity of Doppler echocardiographic indices of left ventricular function during exercise
… common methods used for the assessment of left ventricular function (LVF) are two-dimensional echocardiography and nuclear ventriculography. Recent technological advances have led to the development of an inexpensive, noninvasive alternative: the stand-alone continuous wave Doppler …
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Studies in right ventricular function: Employing the conductance catheter method for ventricular volume determination
The importance of quantifying right ventricular (RV) function has become clear in recent years. Following adult cardiac surgery right ventricular dysfunction has emerged as a significant cause of morbidity and mortality, particularly after transplantation and during left ventricular (L V) assist …
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Left ventricular function after ultra-distance triathlon : response is dependent on the cardiac loading conditions
… evidence to support the hypothesis that altered ventricular loading conditions after the cessation of exercise may cause "cardiac fatigue". The studies that have shown post-exercise "cardiac fatigue" have not controlled for either preload or afterload or both, before and after exercise. These …
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The effect of prolonged exercise and environmental temperature upon left ventricular function and cardiac biomarker release
… an environmental temperature challenge upon left ventricular (LV) function and cardiac biomarker release. The primary aims were; (1) does repeated exercise bouts mediate a cumulative decrease in LV function and/or increase in cardiac biomarker concentrations; and (2) to examine the impact of …
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Mitochondrial protein acetylation and left ventricular function in a model of hypertrophic cardiomyopathy and heart failure
… fat metabolism, and diastolic and systolic dysfunction. Acetylation correlated strongly with worse heart function, and loss of SIRT3 in the FXN KO mouse resulted in significant decrease in ejection fraction and fractional shortening. Treatment of the FXN/SIRT3 DKO with FXN protein therapy …
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A sequential evaluation of left ventricular function in asymptomatic and symptomatic patients with chronic severe aortic regurgitation
… development of pre-symptomatic left ventricular (LV) dysfunction as a result of prolonged volume overload has resulted in numerous reports attempting to formulate a risk profile for these patients. Although aortic root and LV cineangiography have been the "gold standard" for defining …
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The effects of magnesium treatment on short-term changes in heart rate variability, ventricular function and lipid profile in streptozotocin-induced diabetic rats
… including cardiac autonomic neuropathy, ventricular dysfunction and dyslipidaemia, which are dependent on the duration and severity of the diabetes. Most complications are identified at a late, irreversible stage following long-standing diabetes; therefore, early detection and treatment …
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Evaluation of right ventricular function using conventional and real-time 3-dimensional echocardiography in normal dogs and dogs with myxomatous mitral valve disease
… (3D) echocardiographic analysis of right ventricular (RV) function in healthy dogs and to compare conventional and 3D echocardiographic (3DE) indices of RV function in dogs with various stages of myxomatous mitral valve disease (MMVD), classified per the guidelines of the American College …
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Effects of exercise training on left ventricular function and exercise capacity in patients with coronary artery disease and varying degrees of left ventricular dysfunction
… may have developed chronic asymptomatic left ventricular dysfunction and/or residual myocardial ischaemia, and could become potential candidates for cardiac rehabilitation if exercise training could induce physiological benefits without further deteriorating their condition. Over the last 10 …
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The effects of magnesium administration on cardiac ventricular function, heart rate variability, and myocardial morphological changes in a chronic diabetes disease model in rats
… heart disease, cardiac autonomic neuropathy and ventricular dysfunction. Furthermore, DM is associated with electrolyte disturbances such as those involving potassium, calcium and magnesium (Mg2+). Among these electrolyte disturbances hypomagnesemia is common in diabetes and is associated with …
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Impact of Glycemic Therapy on Myocardial Sympathetic Neuronal Integrity and Left Ventricular Function in Insulin Resistant Diabetic Rats: Serial Evaluation by 11C-meta-Hydroxyephedrine Positron Emission Tomography
… risk, particularly for diastolic dysfunction. Diabetes is associated with elevated myocardial norepinephrine (NE) content, enhanced sympathetic nervous system (SNS) activity, altered resting heart rate, and depressed heart rate variability. Positron emission tomography (PET) using the …
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Biomechanics of Cardiac Remodelling in Heart Failure
… remodelling that alters myocardial structure and ventricular function. Current HF treatments were developed targeting patients with systolic dysfunction, but these treatments are ineffective in treating HF patients with diastolic dysfunction. In order to improve treatment of HF, new insights must …
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Repeated full dose thrombolysis in patients hospitalised with myocardial infarction : safety and efficacy
… salvage ischaemic myocardium, preserve left ventricular function and save lives. However, thrombolytic drugs are not uniformly effective in securing or maintaining patency of the infarct-related artery.
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The role of myocardial fibrosis and ventricular mechanical dyssynchrony in the pathogenesis and treatment of contractile myocardial dysfunction.
Structural and functional abnormalities of the left ventricle and atrium are important prognostic factors in patients with cardiovascular disease. Dysfunction of the left ventricle in heart failure exposes the left atrium to elevated pressures during diastole, which result in adverse left atrial …
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Analysis of desmoplakin in arrythmogenic right ventricular cardiomyopathy
… dilated, hypertrophic, restrictive, and right ventricular arrhythmogenic forms, are found in African populations. Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a rare muscle disease characterised by fibrofatty replacement of the right ventricular myocardium, leading to electrical …
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Parameters and algorithms to evaluate cardiac mechanics by conductance catheter
… particular, we present the phenomenon known as ventricular mechanical dyssynchrony: its impact on cardiac function, the therapy for its treatment and the methods for its quantification. Specifically, we describe the conductance catheter and its use for the measurement of dyssynchrony. At the end …
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Elucidation of Emergent Regional Mechanisms of Heart Muscle Dysfunction in the Mouse Model of Duchenne Muscular Dystrophy
<p>Cardiac dysfunction is a primary cause of mortality in Duchenne Muscular Dystrophy (DMD), potentially related to elevated cytosolic calcium. However, the regional versus global functional consequences of cellular calcium mishandling have not been defined in the whole heart. Here, we elucidate, …
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