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Find 451 clinical trials for heart disease near Massachusetts. Connect with research centers in your area.
Showing 381-400 of 451 trials
NCT00277524
The purpose of the OMNI study is to characterize therapy and diagnostic utilization in study participants implanted with study devices and to describe Implantable Cardioverter Defibrillator(ICD)therapy utilization for life threatening arrhythmias in primary and secondary prevention study participants. This study will assess therapies in Medtronic pacemaker, defibrillator, and cardiac resynchronization therapy devices. The first therapy is for reducing unnecessary pacing in pacemaker patients. The second therapy provides pacing therapy in an attempt to stop fast or life threatening ventricular arrhythmias in lieu of delivering a defibrillation shock. The third therapy is a diagnostic measurement of a patient's fluid status and provides the physician information on the patient's heart failure status. The study will also assess the time to a patient's first defibrillation shock and will verify that the shock was for a fast or life threatening ventricular rhythm.
NCT00206856
To determine the clinical utility of using the Triage® BNP Test to guide therapy in outpatients with heart failure
NCT00307047
The purpose of the SPIRIT IV Clinical Trial is to continue to evaluate the safety and efficacy of the XIENCE V® Everolimus Eluting Coronary Stent System (XIENCE V®). The XIENCE V® arm will be compared to an active control, represented by the FDA-approved TAXUS® EXPRESS2™ Paclitaxel-Eluting Coronary Stent System (TAXUS®), commercially available from Boston Scientific. TAXUS® EXPRESS2™ Paclitaxel Eluting Coronary Stent System is manufactured by Boston Scientific.
NCT01229137
Assessment of sensor parameter in patients with heart failure.
NCT00354159
The purpose of this clinical research study is to evaluate the safety and effectiveness of the investigational implantable hemodynamic monitor (IHM), and of the IHM in combination with an implantable cardioverter defibrillator (ICD). The investigational IHM has the ability to record and report the force with which the heart pumps blood (heart pressures). When combined with the ICD, the device has the additional ability to send a strong electrical impulse, or shock, to the heart when it detects dangerously fast heartbeats to return it to a normal rhythm. The IHM and IHM/ICD are implanted surgically just under the skin in the upper chest area. This study will also determine how doctors use the information related to heart pressures in the management of heart failure.
NCT00795873
Post approval study measuring safety outcomes on the Ovatio CRT-D and SITUS OTW LV lead over 5 years.
NCT00812552
Multicenter, case-control study, to collect data regarding incidences of late and very late drug-eluting stent thrombosis with the aim of identifying trends and possible correlates of stent thrombosis.
NCT01165931
The aim of the study is to assess the effects of intracoronary Riociguat on coronary blood flow in subjects with coronary artery disease and to compare this effect with the intracoronary nitroglycerin, a coronary vasodilator widly used to treat patients with coronary artery disease.
NCT00119691
The researchers hypothesize that the addition of nesiritide to standard therapy will prevent worsening of renal function in patients admitted to the hospital with decompensated heart failure and renal dysfunction relative to standard therapy alone.
NCT00680706
Heart failure remains an increasing cause of morbidity and mortality in the United States even in the face of recent advances in the treatment of cardiovascular disease. There is an urgent need to reevaluate the treatment of heart failure. Shifting substrate utilization used in energy metabolism from fatty acids to glucose is beneficial to the heart presumably by increasing the efficiency of ATP production. Several new drugs for the treatment of cardiac ischemia work by this mechanism. There is increasing evidence that patients with heart failure may also benefit by the same type of intervention. Patients with heart failure are known to have low serum thiamine levels because of poor dietary intake and increased urinary excretion. Inadequate thiamine will deleteriously shift substrate utilization from glucose to fatty acids. We hypothesize that thiamine supplementation will be beneficial for patients with heart failure by increasing glucose and decreasing fatty acid utilization. This will be initially tested in a pilot double-blinded placebo controlled study of thiamine supplementation in diabetic and non-diabetic patients presenting to the emergency department with acute decompensated heart failure.
NCT01630408
This is a pilot feasibility study to determine the effects of an activated vitamin D compound (paricalcitol) on heart structure (size) and function (ability to relax) in patients with normal kidney function and a form of heart failure known as HFPEF (heart failure and preserved ejection fraction). This study will also examine heart failure-related hospitalizations and changes in cardiac-stretch and biological markers that are believed to change along with heart size. Patients in this pilot study will be treated for a period of 48 weeks with paricalcitol at a dose previously approved by FDA (1 mcg per day) and followed-up for 4 weeks after treatment is completed.
NCT01864694
The aim of this study is to compare a Web-based system and a computer telephone system to determine their effectiveness in improving diet behaviors compared to each other and a control group.
NCT01086800
This study examines the role of sleep apnea treatment in improving cardiovascular biomarkers.
NCT00465426
HIV-infected patients treated with combination antiretroviral therapy demonstrate metabolic abnormalities that may predispose them to cardiovascular disease. In HIV-infected patients we will investigate progression rates of cardiovascular disease and assess whether these progression rates are predicted by increased inflammatory indices.
NCT00990964
The purpose of the study is to assess lead implant success and complication rate using the Medtronic Attain Family of left-heart leads and delivery catheters.
NCT00282711
The purpose of this study is to compare two types of exercise stress testing to find the best method for detecting heart disease in women.
NCT01107912
The 5-milligram (mg) maintenance dose (MD) of prasugrel in very elderly patients with coronary artery disease produces a pharmacodynamic response within the same therapeutic range as 10-mg MD in non-elderly patients.
NCT01107925
The 5-milligram (mg) dose of prasugrel in low body weight (LBW) patients with coronary artery disease produces a pharmacodynamic response within the same therapeutic range as 10-mg dose in higher body weight (HBW) patients.
NCT01773512
* The prediction of extent and risk profile of coronary atherosclerosis based on clinical evaluation and non-invasive techniques. * Detailed analysis of plaque volume, plaque composition, risk plaque features and shear stress (WSS) changes during lipid lowering therapy (rosuvastatin 40mg) from 3D vessel reconstruction. * Prediction of changes in coronary arteries based on changes in non-invasive examinations. * Examination of WSS influence on atherosclerosis development and changes of WSS during lipid lowering therapy.
NCT01171404
The aim of this international study is to describe the short- and long-term (i.e. up to 2 years following the index event) antithrombotic management patterns (AMPs) in patients hospitalized for acute coronary syndromes (ST segment elevation myocardial infarction (STEMI), Non-ST-Segment Elevation Acute Coronary Syndrome (NSTE-ACS)), and to document the impact of AMPs in clinical outcomes, economic variables and quality of life in a 'real-life' setting and to compare these between sites, countries and regions.
