Active clinical trials for "Heart Diseases"

The aim of this study is to analyze metabolomic pattern of patients after cardiac stress in order to detect differences based on the type of stress (physical or pharmacological with adenosine agonists) and result of test (positive or negative for ischemia) and to indentify biochemical markers with prognostic value. Clinical data of enrolled patients regarding demographics, cardiovascular risk factors, pretest probability and previous cardiovascular disease will be recorded. Follow up will be at one, three and five years and will be performed by clinical recordings or phone call when necessary. Blood samples of patients undergoing myocardial perfusion SPECT (Single Photon Emission Computed Tomography) are taken before, immediately after stress and 2h after stress. Serum samples will be analyzed by nuclear magnetic resonance in order to know metabolomic profile.

Coronary heart disease is still the major cause of death in China. Chinese medicine plays more and more important role in CHD prevention and treatment. Phlegm and blood stasis are its major pathological basis. Based on that, the investigator aims to evaluate the evolutionary process of CHD phlegm-blood stasis syndrome by large samples, multi-centre, cross-section observation combining with longitudinal tracking on-site survey method so as to guide the clinical treatment of CHD.

The objective of this study is to use of STIC technology to assist the traditional echocardiography to diagnose the fetal congenital heart disease accurately and then to provide a basis for prenatal counseling.

Coronary heart disease (CHD) has a serious health threaten to population. PCI is a well-proved measure in CHD management. However, the knowledge about the real-life PCI use and how evidence-based therapies in routine clinical practice is limited. By consecutively recruiting PCI patients in a large-scale hospital in in Northeast China,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.

The aim of this clinical prospective study is to investigate the value of fetal cardiac magnetic resonance imaging using a new Doppler ultrasound based gating method for the detection of congenital heart desease.

To verify whether GLS and LV mechanical dispersion, measured by two-dimensional speckle-tracking echocardiography (2D-STE) correlate with LV scar burden measured by cardiac MRI in patients with ischemic heart disease.

To date, drug-eluting stents (DES) have become the standard of care in daily practice for the treatment of ischemic heart disease, by overcoming the risk of in-stent restenosis, a major issue raised in the bare-mare stents era. The application of potent anti-proliferative drugs and polymer structures that ensures sustained released of the drugs markedly reduced the neointimal hyperplasia, leading to much improved clinical outcomes compared with bare-metal stents. However, although first-generation sirolimus-eluting stents and paclitaxel-eluting stents significantly reduced the risk of in-stent restenosis and target-vessel revascularization, an augmented risk for very late stent thrombosis and fatal clinical events emerged as a new issue to be solved. Second- and newer- generation DESs adopted innovative stent platforms, novel stent materials, anti-proliferative drugs, and biocompatible polymers (including both durable and bioresorbable). Nowadays, numerous types of DESs (over 20 types) are available in clinical practice as well as bare-metal stents. However, little is known about the clinical outcome according to type of DESs in real-word practice. Given that many of recent randomized clinical trials (RCTs) demonstrate the 'non-inferiority' of brand-new DESs over older DESs in limited period time (usually for 1-year) in a selected patients eligible for RCTs, the real-world clinical outcomes according to type of DES implanted are still unveiled. Although, the question about the differential impact of generation of DES, type of biocompatible polymers (bioresorbable versus durable), thickness of stent struts and type of eluted anti-proliferative drugs are very important in clinical aspect of view, but there is little study conducted on all patients who are actually confronted in daily clinical practice. Korea operates national insurance system that covers most of the Koreans (97.1%) that are strictly monitored by National Health Insurance Service (NHIS). Of note, the claims database of NHIS of Korea contains all information including the demographic characters of patietns, diagnosis codes (ICD-9 and ICD-10), type of procedures or surgeries and the medical devices utilized, death certificates that contains type of death, and the drugs prescribe in outpatient clinic and hospitals in a individual pill level, that enables monitoring for the drug compliance. This unique feature of NHIS database allows the investigators to gain access to the dose and duration of cardio-protective medications including anti-platelet agents, lipid-lowering agents, anti-hypertensive agents, glucose-lowering agents, nitrate donors, vasodilators, and others. Given the benefits of NHIS database of Korea, we would like to establish a whole-population registry, named as COreaN NationwidE Claims daTa on Drug-Eluting Stent Registry (CONNECT DES Registry). A comprehensive analysis of this data is expected to shed new light on the impact of type of DESs and drug use in real-world practice that could be fully revealed through RCTs.

To assess the demographic variables, periodontal parameters and to determine the expression of Trefoil factors 2 and 3 and Adrenomedullin in unstimulated saliva samples of periodontally healthy subjects with coronary heart disease and generalised chronic periodontitis subjects with and without coronary heart disease.

The aim of this research is to know the incidence of arrhythmias in on vs. off pump CABG and to know their relations to the patient's morbidity and mortality, hospital stay and hospital costs.

The objective of this work is to investigate and then to sequence new biomarkers in the plasma of patients presenting with dyspnea secondary or not to heart failure, and study their diagnostic and prognostic value.