Optimum Troponin Cutoffs for ACS in the ED
Acute Coronary Syndrome (ACS)Blood tests may be able to quickly identify and exclude patients that are having a heart attack. Using these tests in the Emergency Department (ED) may lead to faster treatment, a reduced wait time, and quicker discharge for patients presenting with symptoms suggestive of a heart attack.
Prognostic Value of Biomarkers Associated With Endothelial Progenitor Cells Mobilization in Acute...
Acute Coronary SyndromesThis prospective study aimed to validate a new prognostic approach of endothelial progenitor cells associated biomarkers in patients with acute coronary syndromes . Recruitment is made prospectively by two centers of Inter -region South Mediterranean,
Medical Telephone Triage of Emergency Calls for Thoracic Pain
Acute Coronary SyndromeThoracic pain is the main symptom of acute coronary syndrome (ACS), urgent and serious illness. Whereas hospital mortality decreased until reaching 10%, out-of-hospital mortality remains high: half of the deaths occur during the first two hours. The benefit of an early diagnosis of ACS in term of morbidity and mortality is well established. Identification of the coronary origin of a thoracic pain by the telephone triage physician of the pre-hospital emergency service (SAMU) leads to the sending of a physician staffed ambulance (UMH) and is thus a key element of the prognosis. The aim of the study is to build a telephone predictive score of ACS at the triage of calls for non traumatic thoracic pain. The separate analysis of the questionnaires by sex will authorize the validation of a unique score or two distinct scores for men and women.
Cardiac Rehabilitation Peer Mentorship
Percutaneous Coronary InterventionCoronary Artery Bypass Graft Surgery4 moreThe current study is a randomized controlled trial, being conducted at two hospitals in Toronto, Ontario, Canada, involving the randomization of cardiac inpatients into an intervention group, in which they will receive mentorship from a volunteer cardiac rehabilitation peer mentor, and a control group, in which they will receive usual care. Patients in both groups will be tracked to determine if they are referred to cardiac rehabilitation and if they enroll in cardiac rehabilitation. We hypothesize that compared to cardiac inpatients who receive usual care, those cardiac inpatients who receive cardiac rehabilitation peer mentorship will be more likely to be referred to and enroll in cardiac rehabilitation.
Secondary Prevention of coRonary Events After Discharge From Hospital (SPREAD)
Acute Coronary SyndromeThis is a randomized, open trial comparing post discharge interventions by community health workers (CHW) to standard care in acute coronary syndrome (ACS) patients. This trial will be conducted in 10 hospitals in India/different parts(both secondary and tertiary care). A total of 800 patients will be recruited, with equal allocation to SPREAD interventions and control groups (usual care)
Vascular Inflammation Imaging Using Somatostatin Receptor Positron Emission Tomography
AtherosclerosisStroke3 moreThis VISION study aims to investigate the role of inflammation in atherosclerosis using 68Ga- DOTATATE PET, and to validate 68Ga-DOTATATE PET imaging for the detection and quantification of vascular inflammation in the aorta, coronary and carotid arteries. This study will test the hypothesis that in subjects undergoing carotid endarterectomy for symptomatic plaques, there will be a positive correlation between carotid artery 68Ga-DOTATATE PET signal and the underlying degree of carotid inflammation measured by immunohistochemical analysis.
Multi-dimensional Prevention Program After Acute Coronary Syndrome (ELIPS) (SPUM-ACS- SP1)
Acute Coronary SyndromeTo demonstrate the effectiveness of the ELIPS programme (Multi-dimEnsionaL preventIon Program after Acute coronary Syndrome), which aims at improving quality of care of patients admitted to hospital with Acute Coronary Syndrome (ACS) in the Swiss setting. The program targets an increase in prescription rates by physicians and long term medication adherence and adoption of healthy lifestyle attitudes by patients. The program is dedicated to caregivers to increase their application of guidelines into practice, to increase their confidence in therapeutic education of patients, and to patients to improve their understanding of ACS and its treatment and to increase their motivation for long term treatment,.
T-Wave Alternans in Patients With Suspected Acute Coronary Syndrome
Chest PainAcute Coronary Syndrome1 moreThe purpose of this study is to measure T-Wave Alternans (TWA) in patients with acute coronary syndrome. Researchers are blinded to clinical TWA measurements. The investigators will then try to determine if T-Wave alternans correlates with clinical outcome of patients with Acute Coronary Syndrome. During routine care of the patient, the T Wave Alternans is measured.
Thrombin Regulated Platelet Activation
Coronary Artery DiseaseAcute Coronary SyndromeThrombin is the most potent activator of platelets, and platelet activation is a hallmark of thrombosis. Coronary artery disease (CAD) is the major cause of mortality and morbidity in the United States and other industrialized countries, and thrombotic sequelae are the key cause of death in diabetes. The accumulation of thrombin at sites of vascular injury provides one of the major mechanisms of recruiting platelets into a hemostatic plug. Thrombin works by activation of the G protein-coupled protease activated receptors PAR1 and PAR4 on human platelets to initiate signaling cascades leading to increases in [Ca]i, secretion of autocrine activators, trafficking of adhesion molecules to the plasma membrane, and shape change, which all promote platelet aggregation. The thrombin receptors work in a progressive manner, with PAR1 activated at low thrombin concentrations, and PAR4 recruited at higher thrombin concentrations. As direct thrombin inhibitors become widely used in clinical practice, it is important to assess their effects on vascular function. Our hypothesis is that PAR1 and PAR4 do not signal through the same G protein pathways, and that PAR4 is not a strong platelet agonist. To investigate this hypothesis, the investigators will study the G protein pathways downstream of PAR4, and assess ex-vivo platelet responsiveness to thrombin, PAR1, and PAR4 agonist peptides, both in normal human subjects, and along the stages of pathology, from patients with stable angina as well as unstable angina who are undergoing angioplasty. Similarly, the investigators will examine platelet function in patients with metabolic syndrome as well as diabetes, along the continuum from insulin resistance to full-blown disease. These studies will provide deeper insight into the G protein pathways used by PARs. They will elucidate the contribution of PAR receptors to normal platelet function as well as the abnormal platelet activation in thrombotic states. The long term goal is to understand the implications for PAR receptors as therapeutic targets for anti-platelet therapies that may carry less bleeding risk.
The Israeli MGuard Registry
Ischemic Heart DiseaseAcute Coronary Syndrome1 morethe objective of the Israeli MGurad Registry is to evaluate the 'Real World' Clinical Performance of the InspireMD MGuard Coronary Stent System