View clinical trials related to Myocardial Ischemia.
Filter by:The overall goal of this project is to evaluate the clinical potential of fast quantitative myocardial tissue characterization using recently emerged Cardiac Magnetic Resonance Imaging (CMR) techniques to aid the diagnosis, treatment, and follow up of patients with myocardial diseases, such as ischemic heart disease, cardiomyopathies, and myocarditis.
The purpose of this study is to test the expression of microRNAs related to the syndromes after the intervention of Tongguan capsule,preliminarily to investigate the mechanism of the effects of Tongguan capsule, and provide the biological foundation of curative effect of Tongguan capsule.
The objectives of this study are 1. To establish a prospective registry of the whole patients who received percutaneous coronary intervention with Xience Xpedition™/Alpine™ stent 2. To evaulate the long-term efficacy and safety of coronary stenting with the Xience Xpedition™/Alpine™ stent 3. To compare the long-term efficacy and safety of coronary stenting between the Xience Xpedition™/Alpine ™ stent and other contemporary drug-eluting stents which had established their own registry
To evaluate safety of reduction of dual antiplatelet therapy period to three months after implantation of Ultimaster sirolimus-eluting stent (U-SES). Additionally to investigate appropriateness of thienopyridine monotherapy with discontinuation of aspirin.
This study evaluates the effects of emotional status on coronary flow in patients undergoing elective coronary angiography. Patients whom undergoing elective coronary angiography will fulfill the Beck Anxiety Inventory, Beck Depression Inventory, State-Trait Anxiety Inventory, Hospital Anxiety and Depression Scale. State Anxiety Inventory will be fulfilled both before the intervention and after 1 hour the patients learned the results of the coronary angiography. The other scales will be performed after 1 hour the patients learned their results. Coronary flow will be assessed by TIMI (Thrombolysis In Myocardial Infarction) frame count method.
Laugh is more than visual and vocal behave, is always followed by a series of physiological changes, including contractions of musculoskeletal system, increase of cardiac frequency by catecholamine release and hyperventilation that promoves the increase of maximum breathing and oxygen saturation. Laugh therapy may be an alternative therapy, simple, and improve the quality of life of individuals can influence physiological and biochemical parameters of the human body.
The aim of this study is to evaluate and describe the total coronary circulation time (TCCT) by using TIMI frame count method in patients performed coronary angiography. TCCT is described as an angiographic index which is the sum of the frame count of coronary artery and venous system. This study also evaluates the relationship between the diseases in arterial system such as coronary artery ectasia, coronary slow flow, coronary artery disease and coronary venous pathologies.
The RATIO Study is a multicenter, nationwide, randomized, controlled, single blinded, unfunded trial of n. 900 patients undergoing multivessel OPCAB (≥2 grafts). This study is designed to test in patients undergoing off-pump coronary artery bypass surgery the hypothesis that full (high dose, 300 U/kg) and half (low dose,150 U/kg) heparinization are not different in terms of thrombotic complications and major perioperative bleeding events (null hypothesis).
Biobank is a program which collects biological samples, health information and imaging data from consented patients and stored them at the core facility. These information would be used to study the molecular, imaging and outcome studies of cardiovascular health and disease.
The National Heart Centre Singapore has recently created a biorepository that is IRB approved for the use in genetic studies: "molecular and imaging studies of cardiovascular health and disease (CIRB Ref: 2013/605/C)". This repository enables IRB approved projects within the National Heart Centre Singapore to access the samples for use in biomarker or genetic studies with consent from patients for these studies. The IRB approved biorepository process also allows for patients, when they have consented to this, to be approached for inclusion in additional studies at National Heart Centre Singapore. In this study, the investigators will examine the genetic variation in genes known to cause inherited cardiac conditions and also look for circulating biomarkers (ICC) in 600 patients with ICC and in 500 patients with ischemic heart disease (e.g.IHD) who will be used as controls. Healthy controls will also be used (800) as they become available in the biorepository. All samples have already been collected in the NHCS biorepository. These patients would have been recruited and consented to the biorepository. This will enable all to better understand heart disease in Singaporean patients. In addition, the investigators will invite a subset of 10 patients with ICCs to provide a second blood sample (20mls - 2 tablespoons) on top of the samples that will be collected for the biorepository. The second blood sample will be used for antibody biomarkers that will be developed in the basic science laboratories. These antibodies will be used to develop new biomarkers of human heart disease to improve human health.