Active clinical trials for "Heart Diseases"

This study will compare 3 dimensional intracardiac echo (ICE) with 2 dimensional ICE or transesophageal echo in patients with structural and valvular heart disease who are already scheduled to undergo a percutaneous intervention. Specifically those patients would be those scheduled for a PFO or ASD repair, mitral balloon valvuloplasty, diagnostic cardiac catheterization assessment of aortic stenosis and those undergoing transcatheter aortic valve replacement.

The investigators intend to prospectively enroll consecutive patients, without known ischemic heart disease, referred by their physician for routine exercise MPI at a tertiary care center. Prior to the MPI (nuclear stress test), eligible and consenting patients will undergo a one-hour period of Holter ECG digital recording. Application of ECG electrodes will be performed by medical technicians following standard recommendations, utilizing approved Holter device & stickers. The Holter ECG data will be used for the offline heart rate variability (HRV) analysis by the HeartTrends device. Immediately following data acquisition, all patients will undergo an exercise MPI according to accepted clinical practice guidelines. Following the MPI, there will be no interference with patient management, which will be conducted by the patients' treating physicians according to current guidelines, unaware of HRV results. Analysis of recorded ECG data for HRV will be performed blinded to the EST and MPI results, by HeartTrends device. The results of the HRV tests will not be available to treating physicians and will not be used to guide patient management. Patients will be followed for 6 months for the occurrence of coronary interventions and MACE, defined as: death, myocardial infarction, unstable angina, or any coronary revascularization.

Multi-center, observational, U.S.-based longitudinal program. Data will be collected prospectively for 3 years. Individual physician feedback will be provided on data collected with the purpose of improving the management of patients - quality enhancement research initiative (QuERI) process from adult patients enrolled with a history of repaired Congenital Heart Disease (CHD).

Coronary heart disease (CHD) is one of the leading causes of mortality and morbidity. PCI, as a well-proved and booming measure in CHD management, is invasive and of high cost, however the knowledge about the real-life PCI use in China is limited. Within a nation-wide and regional representative probability sample of hospitals in China, 14,000 CAG/PCI inpatient cases will be sampled randomly from 2001 to 2011. The sampled medical records will be reviewed and abstracted in the national coordinating centre, in order to evaluate the treatment pattern, outcomes, and cost for PCI, during the past decade. Basic data and innovative evidence will accelerate evidence-based clinical practice and policy making, and improve patients outcomes in future finally.

Coronary heart disease (CHD) pose a serious health threaten to population. PCI, as a well-proved and booming measure in CHD management, is invasive and of high cost, however the knowledge about the real-life PCI use in China is limited. By consecutively recruiting PCI patients in 30 geographically representative highest-rank hospitals, this study will examine various real-life factors, that may affect patients recovery after the procedure. Practical guidelines, appropriateness criteria and quality evaluative system for PCI will be established based on the findings, to improve patients outcomes in future finally.

Coronary heart disease (CHD) pose a serious health threaten to population. Optimal revascularization strategy in multiple vessel coronary artery disease patients remains a subject of debate between interventional cardiologists and surgeons. Knowledge about the real-life revascularization pattern and outcomes in China is limited. By consecutively recruiting three vessel coronary heart disease patients in 25 geographically representative highest-rank hospitals, this study will examine revascularization strategy, and various real-life factors, that may affect patients lone-term recovery. Practical guidelines, appropriateness criteria and quality evaluative system for revascularization strategy will be established based on the findings, to improve patients outcomes in future finally.

Coronary heart disease is a very common condition caused by narrowings in the blood vessel supplying the heart. the investigators are studying new tests to diagnose heart disease. In this study the investigators plan to investigate a special scan called a PET/CT (Positron emission tomography/computed tomography) and a new type of CT (Computed tomography) scan to tell us about the flow of blood to the heart muscle.

Enrollment: Patients with stable coronary artery disease (SCAD) and moderate coronary artery stenoses (30-70 %) Patients with acute myocardial infarction and moderate stenosis of non-culprit arteries (NCL; BYSTANDER LESION) Aims: To assess the diagnostic accuracy of dobutamine stress echocardiography (DSE) and invasive fractional flow reserve (FFR) measurement To assess the prognostic impact of reclassification by a mismatching negative test Hypothesis: DSE and FFR have similar prognostic value in both clinical settings (SCAD and NCL) Considering the strong negative predictive value of both DSE and FFR, one negative test is sufficiently enough to defer revascularisation, even in the case of mismatch

Background: Researchers do not know much about the causes of congenital heart disease (CHD). They do know that many factors play a role. Some factors are environmental. Some are genetic. But few specific factors have been identified. And researchers do not know how many involve genes. They want to study data that has already been collected from people with CHD and their families. Objectives: To identify genetic variations related to CHD. To study molecules related to vascular disease in order to learn new ways to treat it. Eligibility: People who already participated in the Pediatric Cardiac Genomics Consortium (PCGC) study Design: Researchers will study data that was already collected in the PCGC. There will be no active participants. Researchers will get access to the data through the coordinating center. They will not download data to local storage devices. The data will have no personally identifying information....

This study is designed to collect high-quality shoulder and intracardiac bi-plane fluoroscopic images during two standard arm motions on patients implanted with a market released SelectSecure 3830 lead for the purposes of developing a fracture reliability model.