Active clinical trials for "Chest Pain"

The purpose of this study is to assess the usability and safety of the Opsens OptoWire and Optomonitor in measuring fractional flow reserve (FFR) in patients with coronary artery disease who are undergoing a coronary angiogram.

The use of coronary angiography to investigate patients at risk of coronary artery narrowings has become universal. In most cases, this investigation leads to a successful treatment plan with revascularisation recommended where appropriate. However in a substantial number of patients, the images taken of the coronary arteries can lead to diagnostic uncertainty. Increasingly, doctors are using devices called pressure wires to clarify the significance of coronary artery narrowings in order to tailor patient treatment on an individual basis. The Radi pressure wire is well recognised as a reliable tool in assessing whether a narrowing is significant in functional terms, that is, does it significantly restrict blood flow to the heart muscle.It consists of a fine wire that is fed into individual major coronary arteries to measure pressure within the vessel itself. In conjunction with the images taken of the arteries, it is very useful in deciding how best to treat patients. This study enrolls volunteers who are being investigated for stable cardiac-sounding chest pain and are undergoing a coronary angiogram. It will investigate whether the extra information gained from pressure wire assessment will change patients' treatment plan.

The purpose of this study is to investigate the best way to evaluate patients with chest pain in the emergency department. It compares receiving treatment in an observation unit with admission to the hospital. Patients treated in the observation unit will undergo cardiac Magnetic Resonance Imaging (MRI) testing. Patients treated with hospital admission will undergo the testing their doctor determines is best for them. All patients will undergo follow up to find out if they have had any heart related events.

The purpose of this study is to determine whether a brief counseling intervention initiated in the chest pain observation unit has a significant impact upon the health attitudes (readiness to change) and cardiovascular risk-related behaviors (diet, exercise, and smoking) of emergency department patients.

The aim of this study is to evaluate the Safety and feasibility of atropine added during treadmill stress testing in patients with chronotropic incompetence or poor exercise capacity. Our hypothesis is that we can increase heart rate by using atropin in these patients, so we will achieve more conclusive results.

The investigators' objective is to compare a new strategy combining clinical history and NT-proBNP levels versus the usual care, consisting of early exercise testing, for decision making in patients presenting to the emergency department with acute chest pain, non-diagnostic electrocardiogram and normal troponin. The investigators hypothesised that the new strategy combining clinical risk score and NT-proBNP will reduce the number of hospitalisations without increasing the number of events during the follow-up.

To assess the ability of a novel 3rd generation dual-source CT system to demonstrate myocardial perfusion in a cohort of patients presenting to the Chest Pain Center with acute chest pain.

This is a randomized controlled, multi-center, non-blinded non-inferiority study examining the utility of telemetry monitoring in patients admitted who are low risk for acute coronary syndrome. Each of the six sites will prospectively enroll 250 patients in each arm of the study randomized to either a med-surg bed (no telemetry) or a telemetry bed during their admission. Research study coordinators will enroll patients and then follow them throughout their hospital course and record primary and secondary end point events.

Chest pain is a frequent reason of consultation in emergency department. Emergency physician have to identify patients at high risk of Acute Coronary Syndrome from those presenting a lower risk.

A retrospective, observational study consisting of patients who presents with typical/atypical chest pain and have an ensuing negative ischemic evaluation