View clinical trials related to Angina, Unstable.
Filter by:The triage of patients with suspected acute coronary syndrome in the emergency room is a time-consuming diagnostic challenge. Therefore high sensitive early markers for myocardial damage are needed for more rapidly rule out of acute myocardial infarction (AMI) - especially for the first 3 to 4 hours after onset of chest pain in AMI ("troponin-blind" period). Therefore we test the hypothesis that the use meticulous patient history and novel cardiac markers can provide a faster detection or exclusion of AMI in patients presenting with acute chest pain to the emergency department. The prospective cohort study is designed to enrol patients presenting with acute chest pain at rest within the last 12 hours to the emergency department. Several blood samples for detection of the new markers will be drawn and compared with the gold standard for the diagnosis of AMI (high-sensitivity cardiac troponin T). All patients will be contacted by telephone at 3, 12, 24 and 60 months to determine functional status, major adverse cardiac events (death, myocardial infarction, coronary artery bypass grafting, percutaneous coronary intervention), and the results of cardiac examination (stress test, coronary angiography) if performed.
The purpose of this project is to examine the effectiveness of computed tomographic angiography (CTA) in patients with non-ST elevation acute coronary syndrome (NSTE-ACS). People who are hospitalized with this situation often require an angiogram to assess the heart and its arteries. Recent advancements in technology have enabled CTA to clearly define coronary artery anatomy with great accuracy and to guide treatment strategies in select patient populations. We are investigating that CTA may be used, as an alternative to conventional angiograms, for the risk stratification of patients with high risk NSTE-ACS. Patients eligible for the study will be high risk NSTE-ACS and awaiting an angiogram. Enrolled patients will undergo CTA prior to the angiogram. With each CTA the patient will be injected with a small dose of an X-ray dye and will be asked to lie still on the "scanning bed" for a period of 5-10 minutes.
To compare efficacy and safety of dalteparin compared to unfractionated heparin in patients of non ST elevation acute coronary syndromes who are planned to undergo coronary interventions (angioplasty or bypass surgery)
The aim of the study is to examine the efficacy of Paclitaxel injection after a stent implantation in patients with stenosis in native coronary arteries to prevent restenosis in comparision with two admitted therapies.
Options for coronary revascularization include stent implantation and coronary bypass surgery. Both modalities have their unique advantages and disadvantages in terms of clinical outcomes as well as financial impact on the medical system. We wish to investigate the late results of patients undergoing coronary revascularization, the need for re-hospitalization, re-intervention, patient satisfaction as well as the financial burden on the medical system. The study will be conducted by historical prospective review of hospital records in conjunction with records of the medical insurance companies ("HMO's").
The purpose of this study is to determine whether a pre-discharge videotape introducing the concept and benefit of a Cardiac Rehabiliation & Secondary Prevention (CRSP) program will increase intent to participate in a CRSP program in post myocardial infarction, unstable angina, coronary artery bypass surgery, or coronary angioplasty patients.
The purpose of the study is to evaluate the utility of Ischemia Modified Albumin (IMA) for risk stratification in patients presenting with chest discomfort and possible ischemic heart disease, and to evaluate the diagnostic and prognostic implication for IMA for major adverse cardiac events.
This study will examine the relationship between certain measures of heart function and exercise capacity in patients with hypertrophic cardiomyopathy (HCM). Patients who participated in NHLBI studies 01-H-0006 ("Double Blind Placebo-Controlled Study of Pirfenidone - A Novel Anti-Fibrotic Drug - in Symptomatic Patients with Hypertrophic Cardiomyopathy Associated with Left Ventricular Diastolic Dysfunction") and 96-H-0144 ("Double Blind Placebo-Controlled Study of Long-Term Effects of Angiotensin-Converting Enzyme Inhibition (Enalapril) and Angiotensin II Receptor Blockade (Losartan) on Genetically-Induced Left Ventricular Diastolic Dysfunction") are eligible for this study. Data from echocardiograms and measures of left ventricular pressure obtained from patients in those studies will be analyzed in the current study to assess their influence on exercise capacity. No additional tests, treatments or other procedures are required. Information from this study may help in the development of improved drug treatments for HCM.
This is a randomized, double blind, placebo-controlled study, clinical trail designed to evaluate the efficacy safety and superiority of intravenous boluses of isosorbide dinitrate for the relief of acute anginal pain episodes in acute coronary syndrome patients in comparison with the usual manner of S/L isosorbide dinitrate .
The purpose of this study is to determine the effect of a pre-discharge written personal endorsement to the patient by the patient's attending cardiologist or cardiac surgeon (MD endorsement) to take part in the Cardiac Rehabilitation and Secondary Prevention (CR) program, in addition to the standard CR referral, compared to the standard CR referral alone, on CR program enrollment within 2 months of index hospital discharge following admission for myocardial infarction, unstable angina, coronary angioplasty, or coronary artery bypass.