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The purpose of this study is to determine if sildenafil (Viagra) improves exercise tolerance.
Patients will undergo an exercise stress test. One dose of Sildenafil will then be given, followed by a one hour rest period. A repeat exercise stress test will then be repeated.
Allocation: Non-Randomized, Control: Uncontrolled, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Congestive Heart Failure
Massachusetts General Hospital
Massachusetts General Hospital
Published on BioPortfolio: 2014-07-23T21:45:24-0400
The purpose of the study is to evaluate whether sildenafil helps treat heart failure. Some patients with heart failure have high blood pressure in the lungs (referred to as "pulmonary hyp...
The purpose of the study is to show that low dose recombinant BNP coupled with phosphodiesterase V inhibition will improve renal dysfunction and promote relief of volume overload in patine...
A pilot study to examine the effects of LDL-Apheresis on patients with Stage III Congestive Heart Failure. Study hypothesis: Decreased blood viscosity from receiving LDL-apheresis will de...
The purpose of the study is to recognize main causes of acute decompensation of chronic congestive heart failure.
The purpose of this study is to compare the effects on heart rate and ventricular arrhythmias (irregular heart beats) of two doses of NatrecorÂ® (a recombinant form of the natural human ...
Persons with congestive heart failure may be at higher risk of the acute effects related to daily fluctuations in ambient air pollution. To meet some of the limitations of previous studies using group...
Despite evidence that effective family support improves health behaviour and outcomes, the nature of the correlation between congestive heart failure (CHF) outcome and caregiver contribution has not b...
Pulmonary embolism (PE) is associated with a higher mortality rate in patients with congestive heart failure (CHF) than in those without heart failure. The purpose of this study was to evaluate if inf...
The goal of this study was to illustrate the potential benefit of effective congestive heart failure (CHF) treatment in terms of improved health, greater social value, and reduced health disparities b...
A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)
Agents that have a strengthening effect on the heart or that can increase cardiac output. They may be CARDIAC GLYCOSIDES; SYMPATHOMIMETICS; or other drugs. They are used after MYOCARDIAL INFARCT; CARDIAC SURGICAL PROCEDURES; in SHOCK; or in congestive heart failure (HEART FAILURE).
A semisynthetic digitalis glycoside with the general properties of DIGOXIN but more rapid onset of action. Its cardiotonic action is prolonged by its demethylation to DIGOXIN in the liver. It has been used in the treatment of congestive heart failure (HEART FAILURE).
A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION.
Disease of CARDIAC MUSCLE resulting from chronic excessive alcohol consumption. Myocardial damage can be caused by: (1) a toxic effect of alcohol; (2) malnutrition in alcoholics such as THIAMINE DEFICIENCY; or (3) toxic effect of additives in alcoholic beverages such as COBALT. This disease is usually manifested by DYSPNEA and palpitations with CARDIOMEGALY and congestive heart failure (HEART FAILURE).
Erectile dysfunction (ED or impotence) is the inability to get and maintain an erection that is sufficient for satisfactory sexual intercourse, and affects half of all men between the ages of 40 to 70. The causes of ED can be both physical and psycholo...
Stress is caused by your perception of situations around you and then the reaction of your body to them. The automatic stress response to unexpected events is known as 'fight or flight'. Discovered by Walter Cannon in 1932, it is the release of h...