View clinical trials related to Coronary Disease.
Filter by:The study will include patients with acute coronary syndrome without ST segment elevation and multivessel CA lesion, who are subject to surgical treatment according to KG data (Syntax Score 23 - 32 points with significant damage to the anterior descending artery and/or trunk of the left coronary artery). The patient should be suitable for both CABG and PCI (confirmed by an X-ray surgeon and a cardiac surgeon). An X-ray surgeon and a cardiac surgeon, within the framework of planning the volume of revascularization, strives for the fullest feasible volume. Complete myocardial revascularization (that is, the desire for the absence of hemodynamically significant coronary arteries after revascularization, with a diameter of > 2.5 mm, that is, residual coronary artery stenosis of no more than 60%). Thus, patients will be randomized into groups in a ratio of 1:1. Each group will need to include 230 patients (a total of 460). In the main group, revascularization will be performed by PCI, in the control group by CABG.
The goal of this study is to establish a prospective study to focus on the high-risk stroke population who require coronary artery bypass graft surgery. It will divide the eligible patients into 1:1 group by simple randomization method. The control group adopt the traditional diagnosis and treatment mode, and only head CT plain scan and carotid artery ultrasound shall be performed. If necessary, relevant disciplines would be consulted but no integrated assessment of cervicocerebral vessels be arranged. The final treatment plan would be decided by the surgeon alone. The experimental group adopt the multidisciplinary collaboration and integrated evaluation mode. In addition to routine diagnosis and treatment as above-mentioned, integrated assessment of cervicocerebral vessels shall be performed, including transcranial color-coded doppler, cerebral perfusion with multislice CT, and cognitive function assessment. Based on the above results, surgical plans will be formulated jointly by multiple disciplines including neurologists, vascular surgeons, ICU physicians and cardiac surgeons. Researchers will compare the two groups to investigate whether integrated assessment of cervicocerebral vessels can reduce the incidence of brain injury compared with conventional diagnosis and treatment mode.
Coronary CT angiography (CCTA) has been recognized as the first-line diagnostic test for most patients with suspected coronary syndrome, often acting as a gatekeeper for invasive coronary angiography. It is therefore pivotal to understand instances of discrepancies that are encountered in clinical practice. Moreover, most of the literature on this topic relies on obsolete machines or definitions of coronary artery stenosis that cannot be defined as severe. The investigators aim 1) to report the real word data on the performance of last-generation CCTA in identifying obstructive coronary artery disease (also considering different thresholds of stenosis, i.e., moderate or severe) and 2) to identify predictors of discrepancies.
Significant coronary disease of the left main coronary artery (LMCA) is found in 4%-5% of all coronary angiography procedures. Classically, it has been determined that a significant angiographic stenosis should reach at least 50% of the vessel diameter by visual estimation, which corresponds to 75% of the vessel area. However, angiography has a number of limitations inherent to the technique and location of stenosis, and other techniques are therefore available for evaluation. Intracoronary ultrasound (IVUS) deserves, together with the pressure guidewire, special consideration in determining the severity assessment (anatomical and functional) of lesions in this location. Using IVUS the most commonly used cut-off value is 6 mm2. in ambiguous lesions of the LMCA, a MLA >6 mm2 would indicate no revascularisation, a MLA <4.5-5 mm2 would indicate revascularisation, and MLA values between 4.5-5 and 6 mm2 would make it advisable to use FRF/iFR to decide. Optical coherence tomography (OCT) is another intracoronary imaging modality, with greater resolution and significant differences from IVUS. no MLA cut-off point with OCT has been demonstrated for the management of LMCA lesions. Due to the differences in imaging with both techniques, the thresholds established as cut-off points in IVUS cannot be extrapolated to OCT. The objective is to compare the minimal luminal area by IVUS and OCT of angiographically intermediate LCMA lesions and to assess the prognostic value of TCFA assessed by OCT.
The main goal of this clinical trial is to evaluate the feasibility of conducting a large-scale clinical trial testing a program containing several aspects for reducing the effects of air pollution on cardiovascular health (which is named the hybrid program hereafter) in adult patients (18 years or older) with atherosclerotic cardiovascular disease. Furthermore, we seek to answer how much patients adhere to and are satisfied with implementing the hybrid program, and what problems executing this program will bring for patients.
The aim of this research, proposed and funded by PlaqueTec and co-ordinated by Papworth Trials Unit Collaboration, is to demonstrate the performance of the coronary artery blood sampling device (Liquid Biospy System, LBS) and establish its usefulness to collect a range of disease biomolecules from the coronary artery of interest. Using the data generated from extensive analysis of the blood samples, key biomarker data will be generated that will close a knowledge gap and facilitate the development of tailored treatments for coronary artery disease.
Carotid plaque burden and composition features, particularly lipid necrotic core, are significantly associated with severity of CAD stenosis. This study aims to explore the relationship between various phenotypic patterns of carotid atherosclerosis with the prevalence, phenotype, and severity of coronary atherosclerosis. The patients with chest tightness or chest pain will receive carotid artery ultrasonography before coronary angiography so as to explore the relationship between them.
Participants are being recruited at the inpatient department of the National Medical Research Center of Cardiology on a 'all-comers' basis. The enrolled participants will be divided into the main group (diagnosed with atherosclerotic cardiovascular disease (ASCVD)) and control (not diagnosed with ASCVD). The participants will have whole blood and serum collected at enrollment for further biobanking. A genome-wide association study will be carried out to determine the genetic determinants associated with atherosclerosis, coronary heart disease, acute coronary syndrome, etc., including a search for pathogenic variants.
The PK Papyrus Covered Coronary Stent System is a coronary stent being used at Methodist Dallas Medical Center for patients with coronary perforations.
The COMPLETE study is a single-centre, investigator-initiated study of patients with an indication for invasive coronary angiography with CCTA performed during the diagnostic evaluation. After identifying the presence of a coronary stenosis, defined as an epicardial lesion >50% stenosis on CCTA, patients eligible for the study will be invited to participate. The main aim of this trial is to assess the accuracy of coronary CT angiography to quantify total atheroma volume with intravascular ultrasound as reference. Patients will be divided into 2 sub-groups: Cohort 1: Patients with stable coronary artery disease or stabilized acute coronary syndromes with a clinical indication for invasive coronary angiography. Cohort 2: Patients previously revascularized with a metallic stent with a clinical indication for invasive coronary angiography. In both cohorts, patients should have undergone coronary CT angiography as part of the standard of care. Patients included in the study will be managed according to the standard of care for the assessment of coronary artery disease. Clinical follow-up will be collected until 3 years follow-up.