View clinical trials related to Infarction.
Filter by:The purpose of this study is to determine whether treatment of patients suffering from ST-elevation myocardial infarction (STEMI) with 1-2 liters of cold saline and central venous catheter cooling with Philips InnerCool RTx Endovascular System prior to percutaneous coronary intervention (PCI) result in a reduction in infarct size.
The purpose of this study is to examine the benefit of thrombus aspiration in patients with ST-elevation myocardial infarction presenting late after symptom onset.
Some myocardial infarctions (MI) occur as the first manifestation of atherosclerotic disease. Such MIs are important because of the high likelihood of missed opportunities for prevention. A recent analysis using CALIBER data estimated this proportion at 60%. Further to this research, another level of complexity can be added to improve our understanding of these MIs. This is the concept of a completely 'unanticipated' MI, which can be defined as: MI occurring as the first manifestation of atherosclerotic disease and without any traditional cardiovascular risk factors and without any prior chest pain. Such 'unanticipated' MIs cannot be foreseen by the medical profession and their frequency in the population is unknown. Therefore the aim of this study is to describe the distribution of previously diagnosed cardiovascular disease, cardiovascular risk factors and chest pain in patients with first MI. This will provide an estimate of the number of 'unanticipated' MIs and of the levels of risk factors in unheralded, compared to heralded MI.
A clinical trial to study the effects of dosage, infusion methods and complications of unfractionated heparin (UFH) treating acute progressive cerebral infraction was conducted. In this study, we observed the effects of four UFH treatments on 480 acute progressive cerebral infraction patients during from the 6th and the 72nd hour after the attack. It was concluded that the ultra-slow continuous intravenous infusion of UFH can significantly reduce the neurological deficit score of patients with progressive cerebral infarction, increase the cure rate, decrease the recurrence rate, and improve long-term quality of daily life. It is more effective than the treatment of intravenous infusion of low- molecular- weight UFH at once a day, and the risk of bleeding may not necessarily be increased.
Recent studies suggest important gender differences in the pathophysiology and prognosis of ST-segment elevation myocardial infarction (STEMI). This is the first prospective controlled study to assess gender differences in the mechanism of plaque rupture/erosion and thrombus formation in patients presenting with STEMI treated with primary angioplasty. Gender-related mechanisms of plaque rupture or erosion will be investigated using a combination of Quantitative Coronary Angiography, high resolution Optical Coherence Tomography of the culprit vessel and histopathologic analyses of thrombus aspirates of the infarct related lesion, performed by independent core laboratories, blinded to group (male or female) and clinical variables.
Objectives of the phase 2 prospective, multicenter, randomized, double-blind, placebo-controlled study is to assess safety and efficacy of TRO40303 administered just before balloon inflation during percutaneous coronary intervention (PCI) for limitation of infarct size in patients treated for acute myocardial infarction (AMI). The study is being conducted in 9 centres in Sweden, Denmark, Norway and France. One hundred eighty patients will be included. It will last one month per patient and its overall duration will be 11 months. The efficacy will be assessed by infarct size expressed as area under the curve for creatine kinase and troponin I (blood sampling at D1, D2 and D3), and also evaluated by Cardiac Magnetic Resonance. Safety will be assessed by - clinic evaluation, - blood samples (hematology, biochemistry, renal and hepatic function), - Recording and follow-up of major adverse events occurring during the first 48h after reperfusion (death, heart failure, AMI, stroke, recurrent ischemia, the need for repeat revascularization, renal or hepatic, vascular complication and bleeding). - ECG - Recording cardiac events during one month after AMI - Follow-up of global left ventricular function by Echocardiography at D3 and D30. Demographic and medical history at inclusion and non-cardiac events occurring during the first 30 days will be recorded. TRO40303 plasma concentration will be assessed at 15 min, 6h, and 12h post the end of administration. Sample size calculation assuming a reduction of 35% of the AUC for Troponin I release, for a statistical power of 85% and a probability of type I error of 0.05. Main analysis: between-group comparisons of AUCs for serum troponin I and CK release will be performed using O'Brien's method for multiple endpoints testing. Secondary analysis: comparisons of the CMR criteria described above will be performed using mixed model of ANCOVA. All analyses will be performed on the Full Analysis Set and Per protocol populations. Safety analysis: A comparison of the incidence of cumulative adverse clinical events between the groups will be performed by Fisher's exact tests. Subjects will undergo primary PCI and receive concomitant medications according to current standard of care. After coronary angiography is performed but just before balloon inflation is performed, patients who meet the enrollment criteria will be randomly assigned to either the control group or the TRO40303 group. Randomization is ensured by taking the treatment units in ascending and consecutive order in each strata (anterior/posterior as determined on ECG). Just before balloon inflation, ideally less than 5 minutes, and with a maximum of 15 minutes before balloon inflation and stenting, the patients in the TRO40303 group will receive an intravenous slow-bolus (35 mL/min) injection of 6 mg/kg of TRO40303 injected in peripheral IV. The patients in the control group will receive an equivalent volume of the placebo. Patients will be hospitalized for as long as there is a medical indication. CMR and echocardiography will accordingly be conducted as in/out patient between day 3 (ideally) and 5. A follow-up visit will be conducted one month after PCI.
The goal of this clinical research study is to compare the effects of sodium bicarbonate to normal saline when used for clearing mucus blockage in patients with airway stents.
Study Objective: To investigate potential drug-drug interactions (pharmacokinetics and pharmacodynamics) of morphine and antiplatelet drugs (aspirin, clopidogrel, prasugrel, ticagrelor)
The goal of this study is to demonstrate the superiority of the MGuard™ stent over commercially-approved bare-metal (BMS) /drug-eluting stents (DES) in achieving better myocardial reperfusion in primary angioplasty for the treatment of acute ST-elevation myocardial infarction (STEMI).
The purpose of the study is to clarify wether body posture during ingestion of 60mg Efient, a thrombocytic inhibitor, has influence on the time to thrombocytic inhibition. The study aims to mimic the treatment Danish patients receive when admitted to the hospital with a ST-elevation myocardial infarction since these patients are refereed to acute Percutaneous Coronary Intervention (PCI) necessitating fast and efficient thrombocytic inhibition. Current guidelines recommend the administration of Efient right before the PCI procedure, while the patient is lying down, either in the ambulance or in the operating room. We, the investigators, believe that this is suboptimal for the patient, since any sort of prolonged inhibition time will possibly worsen the patients prognosis and make the patient more prone to later clotting issues. Our hypothesis is that by making the patients ingest the tablets in a 90 degrees upright position and making them sit up for 2 minutes after ingestion, the effect of the pills will commence faster than if taken in a supine position. This will possibly lead to faster inhibition of the thrombocytes, which we believe will lead to a lower incidence of clotting issues during and after the procedure.