View clinical trials related to Myocardial Ischemia.
Filter by:We hypothesized that periodontal disease and edentulism could be a risk for CAD and there might be a relationship between the oral status and the number of main coronary vessels with ≥ 50% stenosis. Therefore, primary goal of this study is to investigate the connection between oral status and the extent of coronary artery disease (CAD), which is diagnosed by angiography.
This is a multicenter, prospective trial to measure the test performance characteristics of the Magnetocardiography (MCG) CardioFlux cardiac diagnostic system in detecting clinically significant coronary artery obstruction in patients with symptoms of suspected acute coronary syndrome or who present with a failed stress test with the intention of treat with cardiac catheterization.
68Ga-DOTATATE is a PET radiotracer with high affinity and selectivity for somatostatin receptor 2 (SSTR 2) and is approved clinically for the evaluation of patients with neuroendocrine tumors. The SSTR2 receptor is also highly expressed at the surface of human macrophages and lymphocytes. In comparison to FDG, 68Ga-DOTATATE presents the advantage of fast clearance from tissues, which are not expressing somatostatin receptors, in particular muscular and myocardial tissues, and the level of blood glucose does not influence its uptake. Accumulation of 68Ga-DOTATATE has already been detected in coronary and carotid plaques and is associated with the number of activated macrophages present in plaques obtained after carotid endarterectomy. In a recent study, Tarkin et al. confirmed the preferential uptake of 68Ga-DOTATATE by macrophages in atherosclerotic plaques. In addition, the intensity of 68Ga-DOTATATE was higher in culprit lesions in the carotid and coronary arteries than in stable lesions. The evaluation of 68Ga-DOTATATE uptake in coronary arteries was also strongly facilitated in comparison to FDG thanks to the absence of spillover signal from the myocardium. AAA has developed a new kit that has markedly simplified the synthesis of 68Ga-DOTATATE and has obtained in the US marketing authorization for the kit (Netspot; kit for the preparation of Gallium-68-DOTATATE injection for intravenous use) on June 1st 2016 (NDA 208547) for evaluation of patients with neuro-endocrine tumors. The Netspot kit will be used in this study for the detection of progressing coronary atherosclerosis.
The objective of this research proposal is to find out whether comparing the two different anaesthetic maintenance techniques (Propofol vs volatile anaesthetics) in adult patients undergoing heart surgery is practical for the anaesthetist treating the patients and whether it is feasible for the research team to recruit patients and follow them up after the operation.
The investigators sought to investigate the prognostic implication of qualitative and quantitative plaque analysis on coronary CT angiography (CCTA) according to fractional flow reserve (FFR). The main objective was to develop a comprehensive risk model by using clinical risk factors, FFR and CCTA parameters.
The primary objective of this study is to build a repository of resting cardiac phase space signals from eligible subjects using the Phase Signal Recorder (PSR) prior to coronary angiography for the purposes of machine-learning and testing algorithms developed by Analytics 4 Life. Male and Female subjects will be uniquely and consecutively enrolled into one group to support populating a repository of phase signals.
A retrospective cohort study was performed in patients with angina pectoris who were treated with oral Chinese patent medicine and Western medicine.The hospital's medical record management system was used to collect symptoms of angina pectoris, dose and frequency of nitroglycerin use, clinical biochemical test and imaging examination.To explore the clinical efficacy of Chinese patent medicine in the treatment of coronary heart disease with angina pectoris, and provide reliable data support for its clinical application.
Obstructive sleep apnea (OSA) is an increasingly common chronic disorder in adults. Compared to the general population, OSA occurs more often in patients with coronary artery disease (CAD), with a reported prevalence of 38% to 65%. Emerging evidence indicates OSA initiates and exacerbates coronary atherosclerosis. Moreover, several observational studies indicate the presence of OSA was associated with higher rate of restenosis and repeat revascularization (mainly attributed non-culprit lesion revascularization) after percutaneous coronary intervention (PCI). OSA might initiate endothelial injury by repetitive bursts of sympathetic activity that occur with apneas and hypopneas. Moreover, untreated OSA reduces endothelial repair capacity. Whether OSA could exacerbate neointimal proliferation and plaque progression in the non-culprit lesion after drug-eluting stent (DES) implantation remains less studied. The investigators aimed to evaluate neointimal proliferation and strut coverage within stent segment as well as changes of plaque volume and morphology in the non-culprit lesion by optical coherence tomography (OCT) in patients with versus without OSA at 12-month follow-up.
stress cMRI with Dobutamine stress agent (stress cMRI), represent the combination of two orders of exams routinely performed (cMRI and stress diagnostic series of exams) without additional risk for the patient, but with the advantage of non-invasiveness and lack of radiation, and less laborious for the participants
A prospective cohort study was performed in patients with angina pectoris who were treated with oral Chinese patent medicine and Western medicine.Collect primary and secondary efficacy indicators such as the incidence of cardiovascular events, using clinical samples to detect genomics, proteomics, metabolomics, intestinal flora and sclerotia.To explore the clinical efficacy of Chinese patent medicine in the treatment of coronary heart disease with angina pectoris, and provide reliable data support for its clinical application.