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Find 574 clinical trials for heart disease near Maryland. Connect with research centers in your area.
Showing 301-320 of 574 trials
NCT03035474
CONNECT-HF is a large-scale, pragmatic, cluster-randomized clinical trial to evaluate the effect of a customized, multifaceted, health system-level quality-improvement (QI) program compared with usual care on heart failure (HF) outcomes and HF quality-of-care metrics.
NCT00232180
In an earlier study, eplerenone was shown to improve survival in patients who had heart failure immediately following a heart attack. However, it is not known how patients with established mild-to-moderate heart failure (NYHA Class II), who have the additional risk of sudden death, will respond if treated with eplerenone. In this trial, eplerenone plus standard heart failure medicines is being compared to placebo plus standard heart failure medicines in terms of an additional ability to prolong life and prevent re-hospitalizations for worsening heart failure in these patients. The Data Safety Monitoring Committee (DSMC) observed during its conduct of the protocol-specified second interim analysis on the 6th of May, 2010 that the efficacy of eplerenone had met the pre-specified stopping rules in the protocol. As a result of the discussion between the DSMC and the Executive Steering Committee (ESC), the ESC recommended that EMPHASIS-HF should be terminated, Based on the convincing efficacy and the consideration that it would be unethical not to offer this treatment to patients, the ESC recommended that all the patients in the trial should be transferred to open-label eplerenone. The Open Label Extension eplerenone arm will last for 12 months. Eplerenone is not currently approved for the indication studied in this patient population. On May 26, 2010, further enrollment into EMPHASIS-HF was stopped. The amendment is considered to be the most appropriate way to ensure that all the subjects who participated in the double-blind phase of the EMPHASIS-HF trial can be offered treatment with eplerenone
NCT03036124
The purpose of this study is to evaluate the effect of dapagliflozin on the incidence of worsening heart failure or cardiovascular death in patients with chronic heart failure with reduced ejection fraction
NCT00027170
This study will explore new ways of using magnetic resonance imaging (MRI) to evaluate the heart and blood vessels of patients with cardiovascular disease, including better detection of myocardial infarction (heart attack) and blockage of heart and leg arteries. Patients 18 years of age and older with cardiovascular disease may be eligible for this study. All participants will have magnetic resonance imaging of the heart. MRI uses a magnetic field and radio waves to show structural and chemical changes in tissues. For the procedure, the patient lies on a table surrounded by a metal cylinder (the scanner). A 'gadolinium contrast' material may be injected into the patient s vein during part of the study to brighten the images. Patients wear earplugs during the scan to muffle loud knocking sounds caused by the electrical switching of the magnetic fields. They will be asked to hold their breath intermittently for 5 to 20 seconds during the scan. They will be monitored with an electrocardiogram (EKG) during the procedure and will be in contact by intercom at all times with the person performing the scan. Patients can request to stop the study and come out of the scanner at any time. The procedure may last from 30 to 90 minutes. An echocardiogram a test that uses sound waves to produce pictures of the heart and blood vessels-may be done to confirm the MRI findings. In addition, patients may undergo one or more of the following optional studies: * Dobutamine stress MRI - This test uses dobutamine-a medicine that simulates exercise by increasing heart rate and heart function-to detect blockages in the coronary arteries (vessels that supply oxygen and nutrients to the heart) and locate areas of the heart that are permanently damaged, perhaps by a previous heart attack. For this test, MRI pictures of the heart are taken before, during and after administration of dobutamine. Gadolinium may be injected during part of the study to brighten the images. An EKG will be used to monitor the heart during the procedure. * Vasodilator MRI - The procedure and objectives of this test are the same as those described for dobutamine stress MRI, except that this study uses dipyridamole or adenosine. These drugs dilate blood vessels, causing increased blood flow to the heart. * Plethysmography MRI - This test determines the presence and severity of narrowing in arteries that supply blood to the leg. Blockage of these vessels often causes pain while walking. This study will compare plethysmography MRI with venous occlusion plethysmography, an older method of measuring blood flow in the legs. For venous occlusion plethysmography, a large blood pressure cuff is placed around the upper leg and a strain gauge (thin elastic band) is placed around the calf. The pressure cuff is inflated very tightly for 5 minutes to block blood flow to the leg, and another pressure cuff over the ankle is also inflated. When the large cuff is deflated, blood rushes to the leg, a smaller cuff is inflated to a low pressure, and the strain gauge measures the maximum blood flow to the leg for 1 or 2 more minutes. This procedure is done once or twice outside the MRI scanner and once or twice inside the scanner. The scans are performed as described above for the dobutamine and vasodilator studies. The strain gauge is not used for plethysmography MRI the MRI pictures are used to measure flow.
NCT03232944
The purpose of this Post-Approval Study (PAS) is to evaluate the effectiveness of MPP to improve CRT response in the non-responder patient population when used in "real-world" clinical practice, following commercial release. This evaluation is based on the Clinical Composite Score which summarizes the proportions and frequencies of CRT non-responder patients who are "improved", "unchanged" or "worsened" after receiving MPP therapy. Patients will be followed for the duration of the PAS. This study is required by FDA as a condition of approval of the MPP feature and is integrated within the Product Surveillance Registry (PSR).
NCT02011061
Coronary calcium hampers accurate evaluation of the coronary arteries with coronary computed tomography angiography (CCTA). A novel approach to potentially overcome this limitation is coronary calcium subtraction. The primary hypothesis of the study is: \- Coronary calcium subtraction CCTA will improve diagnostic accuracy as compared to conventional CCTA on a per-patient basis
NCT02290028
The QP ExCELs study is designed to confirm safety and efficacy of the BIOTRONIK Sentus OTW QP left ventricular leads to satisfy FDA requirements for regulatory approval of the leads in the US. The Sentus OTW QP leads received FDA approval on May 4, 2017. Long-term safety of the BIOTRONIK Sentus OTW QP left ventricular leads will be confirmed during the ongoing post approval phase (US sites only). A protocol update was implemented on September 6, 2019 to transition the long-term follow up for the ongoing Sentus QP Study to a new EP PASSION real-world data methodology.
NCT01361685
Lead survivability will be summarized.
NCT03008772
To define the long-term incidence and frequency of ISR follow DES implantation. Compare the clinical presentation, treatment and intervention success among de novo coronary artery stenosis and DES ISR. Compare short- and long-term outcomes of de novo coronary artery stenosis and DES ISR, assessed by incidence of mortality, MACE, MI, and TLR/TVR at index hospitalization, 30 days, 6 months, 1 year, 3 years, and 5 years, if available.
NCT04572425
The purpose of this research project is to evaluate the impact of virtual reality therapy on mitigating heart failure pain in hospitalized patients with heart failure and compare this impact to that of 2-dimensional guided imagery distraction therapy.
NCT02605447
The EVOLVE Short DAPT Study is a prospective, multicenter, single-arm study designed to assess the safety of 3-month DAPT in subjects at high risk for bleeding undergoing PCI with a SYNERGY Stent System.
NCT01757067
Premature ventricular contractions (PVC) are a very common irregular heart beat (arrhythmias) even in patients without heart disease. Frequent PVCs are thought to occur in about 1-4% of the general population. Many patients with PVCs complain about skipping of their heart (palpitations), shortness of breath and feeling tired. In some patients PVCs may also result in weakening of the heart muscle (heart failure), which might be reversible with suppression of the PVCs.
NCT02874794
To determine whether treatment with sacubitril/valsartan provides a superior effect on aortic characteristic impedance compared to enalapril in patients with heart failure and reduced ejection fraction (left ventricular ejection fraction \[LVEF\] ≤ 40%) after 12 weeks of treatment. The primary endpoint is the change in aortic characteristic impedance (Zc = dP/dQ in early systole) between baseline and Week 12.
NCT01951625
Objective of the study is to find the optimal dose of the once daily oral soluble guanylate cyclase stimulator (sGC) BAY1021189 for Phase III that can be given in addition to standard therapy for heart failure with reduced ejection fraction (HFrEF).
NCT02696967
The purpose of this study was to determine the safety and tolerability of CLR325 intravenous (i.v.) infusion in patients with stable heart failure to determine if further clinical development of the drug in this indication was warranted.
NCT00082589
The purpose of this study is to determine if eplerenone is effective in the treatment of mild to moderate heart failure
NCT02178579
The purpose of this study is to better define and understand potential cardiac toxicities of proteasome inhibitors and to understand optimal management strategies to treat and prevent cardiovascular events.
NCT02232659
The SynCardia 70cc temporary Total Artificial Heart (TAH-t) is approved by the U.S. Food and Drug Administration (FDA) for use as a bridge to transplant for patients at risk of imminent (about to happen) death from irreversible biventricular heart failure. The purpose of this research study is to evaluate whether the TAH-t can support patients with life-threatening irreversible biventricular heart failure who are not eligible for transplantation. The TAH-t, when used for patients who are not eligible for transplant, is considered to be an investigational (not approved by FDA) use. This use is called destination therapy (DT). Nineteen (19) patients with life-threatening, biventricular failure who are not eligible for cardiac transplant will be enrolled in the Primary Arm of the study and followed for up to six months post-TAH-t implant. Safety will be evaluated by reviewing the adverse events that are experienced by the enrolled subjects and comparing them to previous experience of TAH-t patients who were waiting for a heart transplant. Since approximately 74% of patients with this condition would not be expected to live beyond six months, the benefit of the TAH-t for DT will be confirmed based on survival to six months without experiencing permanent disabling stroke-related deficits. After the six month follow-up visit, patients will continue to be followed under the study for up to five (5) years postTAH-t implant \[every six months for up to two years while supported with the TAH-t implant and then annually for another three years\]. Up to an additional 19 patients may be enrolled in the Secondary Arm of the study to further characterize the use of the TAH-t for DT in a broader patient population. Follow-up would be the same for patients enrolled in both arms of the study.
NCT03564860
This is a single-arm, non-randomized, non-blinded study designed to collect device data in patients with permanent His bundle (HB) pacing lead and an existing Abbott permanent pacemaker, defibrillator, or cardiac resynchronization device. Prospective data collection includes surface electrocardiograms, intracardiac electrograms, and pacing parameters, recorded during a patient visit. Additional retrospective data collection includes procedural data during the HB pacing lead and device implant. Up to 200 subjects will participate in this clinical investigation. The clinical investigation will be conducted at up to 8 centers worldwide. The total duration of the clinical investigation is expected to be 1 year, including enrollment and data collection from all subjects.
NCT00632372
The purpose of this study is to collect and analyze electrical measurements, timing, and signals from a CRT-D device in heart failure patients who either already have an implanted left atrial pressure sensor or will undergo a simultaneous implantation of a left atrial pressure sensor and a CRT-D device. These devices may be placed at the same time or separately (staged procedure) at the discretion of the investigator. A comparison will be made between the information gathered from the CRT-D system and the information gathered by the left atrial pressure sensor.
