Active clinical trials for "Infarction"

Transcranial direct current stimulation has shown promising results in stroke patients. This study is a double blind, sham-controlled clinical trial aiming to compare the long-term effects of stimulation in two different cognitive regions after a stroke. Sixty patients who suffer from chronic strokes will be randomized into 1 of 3 groups: dorsolateral prefrontal cortex, cingulo-opercular network and motor primary cortex (control). Each group will receive transcranial direct current stimulation for 20 minutes for 10 consecutive working days (2 weeks). Patients will be assessed with a Dysexecutive Questionnaire, Semantic Fluency test, categorical verbal fluency and Go-no go tests, Wechsler Adult Intelligence Scale, Rey Auditory-Verbal Learning Test, Letter Comparison and Pattern Comparison Tasks at baseline, after their tenth stimulation session (week 2) and endpoint (week 4). Those who achieve clinical improvement with neurostimulation will be invited to receive treatment for 12 months as part of a follow-up study.

Recruited patients should receive the endoscopic surgery for picking the olfactory mucosa 1 to 2 months before transplantation. The Olfactory Ensheathing Cells (OECs) will be cultured and expanded under the rule of GTP. Then, quality control of OECs should be done by immunohistochemical staining positive for GFAP, S100, and P75. Finally, the investigators will transplant the OECs (about 2 to 8 X 10´6 cells in saline) into the peri-infarcted area of the brain.

This study focused on the effect of Danhong injection on microcirculation in the treatment of patients with STEMI(ST-elevation myocardical infarction) after the PTCA surgery.

To evaluate the efficacy and performance in an all-comers contemporary population of the ABSORB bioresorbable vascular scaffolds (BVS) strategy versus the XIENCE family (XIENCE PRIME or XIENCE Xpedition) everolimus eluting coronary stent system in the treatment of coronary lesions.

The occurrence of no-reflow phenomenon after recanalization of the infarct related artery in acute myocardial infarction is described in up to 40% of cases. This event is associated with a worse prognosis at follow up and an unfavourable left ventricular remodelling. Two main pathogenetic mechanisms cause no-reflow: distal embolization, ischemia-reperfusion injury and individual susceptibility. In such a context, Excimer Laser (EL) may play an important role in order to reduce the rate of microvascular obstruction. Thus, in this randomized study we will assess the effect of EL versus Manual Thrombus Aspiration for ST elevation MI using ST segment resolution on standard 12 leads ECG as primary endpoint of myocardial reperfusion.

Primary percutaneous coronary intervention (PCI) represents the preferred reperfusion strategy for patients with ST-segment elevation myocardial infarction (STEMI), since it is more effective than thrombolytic regimens in reducing adverse events, including death. Drug-eluting stents (DES) are currently being widely used in patients with STEMI. The effectiveness of DES to reduce restenosis and the need for revascularization compared with bare-metal stents (BMS) has been documented in randomized controlled trials. The first-generation DESs implanted in STEMI have been associated with delayed healing and incomplete strut coverage. Therefore, in patients with implanted DES, longer duration of dual antiplatelet therapy is needed. The second-generation DESs (ZES and EES) have been improved the drug and polymer, which have been proved to improve neointima healing compared with the first generation DESs. However, the difference of strut coverage between EES and BMS implanted in STEMI patients is unknown. In this study, we assess the neointimal coverage at 3-month and 12-month follow-up in EES and BMS implanted in patients with STEMI by optical coherence tomography.

Objectives: The primary objective of this study is to evaluate the safety of an early discharge strategy in patients with low risk ST-elevation myocardial infarction (STEMI), treated with primary percutaneous coronary intervention (PPCI), compared to a conventional strategy. Methodology: Unicentric, randomized, controlled, non-inferiority and open label clinical trial. The investigators will compare an early discharge strategy (≤72 hours) with a conventional strategy (discharge according to treating physician's criterion). Inclusion criteria will be: low risk (Zwolle risk score ≤3) STEMI treated with PPCI within 24 hours from symptoms onset. Exclusion criteria will be: arrhythmias (ventricular tachycardia or fibrillation, asystole, pulseless electrical activity, advanced atrio-ventricular block), mechanical complications (cardiac tamponade, free-wall or septal rupture, acute mitral regurgitation, pericarditis), severe or moderate bleeding (according to the GUSTO criteria), complications related to vascular access of the procedure, acute kidney failure, infection, heart failure. Sample size will be 1558 subjects (n=779 per group). The investigators will study demographic, clinical, biochemical, echocardiographic and angiographic variables. The primary endpoint will be a composite of death, reinfarction, new angina, heart failure, ventricular arrhythmias, stroke and severe bleeding. The secondary endpoint will include each of the items of the primary endpoint and quality of life and functional capacity questionnaire SF-36. Finally, the investigators will analyze the degree of compliance with the European Society of Cardiology guidelines on STEMI and the rate of hospitalization-related complications. Follow up will be at 30 days.

The aim of the study is to determine if single-bolus recombinant nonimmunogenic staphylokinase is effective and save thrombolytic agent in patients presenting ST-segment elevation myocardial infarction in comparison to tenecteplase.

The purpose of this study, is to determine the differences of clinical outcomes between hypoxic pre-treatment group and control group in bone marrow stem cell transplantation (BM-SCT) to treat acute myocardial infarction (AMI); and to evaluate the safety of both treatments. Heart failure patients underwent PCI treatment after AMI and with informed consent, are randomized allocation into hypoxic pre-treated BM-SCT group, normoxic pre-treated BM-SCT group, and control group. Cell resuspension is intracoronary injected into patients receiving coronary angiography, IL-6, CRP, TNF and BNP are detected; echocardiography, cardiac MRI and ECT are analyzed to evaluate heart function and alive myocardial cells. Holter's ECG monitor is employed to observe arrhythmia and embolism. We hypothesize that, by receiving hypoxic pre-treated BM-SCT, impaired heart function will be reversed in heart failure patients.

This study aims to determine the efficacy of intravenous transplantation of autologous bone marrow-derived mesenchymal stem cells in patients with acute middle cerebral artery infarct.