View clinical trials related to Coronary Artery Disease.
Filter by:A prospective, multi-center, single-blinded, randomized trial to assess the safety and efficacy of the Sirolimus-Eluting Iron Bioresorbable Coronary Scaffold System (IBS) in treating patients with coronary artery disease compared to the Abbott Vascular XIENCE Everolimus Eluting Coronary Stent System (XIENCE).
A prospective, multi-center, single-arm trial to assess the safety and efficacy of the Sirolimus-Eluting Iron Bioresorbable Coronary Scaffold System (IBS) in treating patients with coronary artery disease.
It is an observational study which objective is to analyze, through a series of invasive parameters, the state of the coronary microvasculature immediately after the successful percutaneous coronary intervention of a chronic total occlusion and at 6 months after the index procedure. The aim of the study is to check the variation in the values of the index of microcirculatory resistance (IMR) and invasive absolute coronary flow (AF). The working hypothesis is that, in the follow-up of these patients, AF will increase significantly with respect to its baseline and, conversely, IMR will be reduced during the follow-up.
It has become apparent that patients with co-morbidities have an increased risk of mortality from coronarvirus disease 2019 (COVID-19). However, the impact of subclinical respiratory and cardiovascular disease on the outcome of patients with COVID-19 is currently unknown. This observational study will assess the impact of incidental cardiovascular calcification on radiological imaging on the outcomes of patients with COVD-19.
Oat fibre has been shown to lower cholesterol and may have cardioprotective effects. However, whether this translates to actual cardiovascular risk reduction is unclear, as there is a lack of controlled human trials. To address this uncertainty, the investigator proposes to use established cardiovascular disease risk scores, such as those recommended by the Canadian Cardiovascular Society and other clinical practice groups, to create composite risk scores in assessing future risk. The data on oat fibre will be collected through a systematic review of controlled trials, composite cardiovascular risk scores will be calculated for each eligible study, and meta-analyses will be conducted to assess the overall effect. The findings generated by this proposed knowledge synthesis will help improve the health of consumers through informing evidence-based guidelines and improving health outcomes by educating healthcare providers and patients, stimulating industry innovation, and guiding future research design.
This multicenter study involved 5 hospitals (Changhai Hospital; Yueyang Hospital of Shanghai University of Traditional Chinese Medicine; Gongli Hospital; Putuo Hospital of Shanghai University of Traditional Chinese Medicine; No. 904 Hospital of the PLA Joint Logistics Support Force Wuxi). The study enrolled 3637 patients with coronary atherosclerosis who were confirmed by coronary angiography from January 2017 through December 2018.
The DIAST-CMD registry (Prognostic Impact of Cardiac Diastolic Function and Coronary Microvascular Function) is prospective registry which enrolled patients who underwent echocardiography, cnically-indicated invasive coronary angiography and comprehensive physiologic assessments including fractional flow reserve (FFR), CFR, and IMR measurements for at least 1 vessel from Samsung Medical Center. Patients with hemodynamic instability, severe LV dysfunction (left ventricular ejection fraction<40%), a culprit vessel of acute coronary syndrome, severe valvular stenosis or regurgitation were excluded.
Selection of the appropriate administered activity for each patient's body habitus is very important to obtain diagnostic image quality. Current SPECT imaging guidelines suggest "…an effort to tailor the administered activity to the patient's habitus and imaging equipment should be made… [however] strong evidence supporting one particular weight-based dosing scheme does not exist." An increase in body weight leads to higher fractions of attenuated and scattered photons, resulting in lower quality PET images for a given injected activity. Weight-based tracer dosing is commonly recommended as a solution in whole-body PET imaging with F-18-FDG. In contrast, Rb-82 PET imaging has traditionally been performed using a single dose (e.g. 40 mCi) administered for all patients but this is known to result in lower count-density and image quality in larger patients. This effect can be mitigated to some degree by administration of Rb-82 activity as a proportion of body weight while maintaining accuracy for the detection of disease. The objective of this project is to determine whether Rb-82 activity administered as a squared function of patient weight (quadratic dosing) can standardize PET myocardial perfusion image quality over a wide range of body weights. Sequential patients referred for dipyridamole stress Rb-82 PET perfusion imaging at the University of Ottawa Heart Institute. Patients will be divided into 4 weight groups to determine if there are significance differences in image quality or accuracy of injected Rb-82 activity between patients. Twelve (12) patients will be recruited in each of the 4 weight groups (3 in each 10 kg interval) to uniformly sample the full range of patient weights from 30 to 190 kg. Based on the previous oncology PET literature image quality is not expected to change as a function of weight, i.e. SNR and CNR will be proportional to weight0 (no weight-dependence) with quadratic dosing of Rb-82. Two operators will perform the PET image analysis as described above.
The objective of this clinical trial is to confirm the safety, effectiveness and performance of the DESyne BDS Plus Drug Eluting Coronary Stent System (DESyne BDS Plus DECSS) (Test) as compared to the CE Mark approved DESyne X2 Novolimus Eluting Coronary Stent System (DESyne X2 NECSS; DESyne X2) (Control) in the treatment of de novo native coronary artery lesions.
PROTEUS is a multicentre, two arm, randomised controlled trial of a medical device to assess the impact of the introduction of EchoGo into the standard care pathway for stress echocardiology.