View clinical trials related to Coronary Artery Disease.
Filter by:The "Prospective Multicenter Registry On RadiaTion Dose Estimates Of Cardiac CT AngIOgraphy IN Daily Practice in 2017" (PROTECTION-VI) study is a prospective registry and investigator-initiated initiative without third-party funding, which will collect and analyze the radiation dose exposure of Cardiac Computed Tomography Angiographic (CCTA) studies in current daily practice worldwide. Particularly, the study will assess the use of strategies for dose reduction during CCTA. A decade ago, the multicentre observational PROTECTION-I study has revealed that the dose-length-product of CCTA ranges between 568 - 1259 mGy x cm with a median of 885 mGy x cm. This corresponds to an estimated effective dose of approximately 12 mSv. Since then a variety of techniques have been developed and enhanced in order to reduce radiation exposure during CCTA. Recent studies demonstrated feasibility of dramatically reduced effective radiation doses during CCTA (0,1 - 0,3 mSv). This has been executed in small cohorts of patients at scientific expert centers. However, it remains unclear, if such low-level radiation dose exposure may be achieved in clinical routine and if diagnostic image quality is maintained. In order to analyze the magnitude of radiation dose exposure of CCTA in today's clinical practice and the current use of dose-saving techniques, we designed the PROTECTION-VI study. Eventually, this study may contribute to further improving radiation dose exposure for patients undergoing CCTA.
The OPTIMUM registry is a minimal risk observational study that uses a prospective cohort design to follow patients who have multivessel or left main coronary artery disease ("surgical anatomy" according to ACC/AHA Appropriateness Criteria for PCI12) and are deemed ineligible for coronary artery bypass surgery. It is anticipated that 20 sites will be selected to participate in the registry from a national network of leading centers across the United States with recognized expertise in both complex PCI and coronary artery bypass surgery. We will invite leading cardiac centers, as defined by US News and World reports rankings for heart care. Additional sites may be added to meet the target enrollment goal.
The Copenhagen City Heart Study is an ongoing cardiovascular population study initiated in 1976 which has examined approximately 25,000 individuals from the general population. The initial sample has been re-invited up to four times and supplemented by younger individuals. The study includes questionnaires, clinical assessment and biomarkers. The population have been followed in a number of outcome registries and more than 900 scientific papers have been published.
In the aging population, the prevalence of chronic diseases and multimorbidity has become common. Therefore, the planning and coordination of care have become more important. However, it is not known what kind of treatment plan should be and what kind of patients would benefit most of it. This research focuses on the participatory patient care planning in primary health care. In general, the participatory patient care planning (PPCP) aims to engage patients in self-care, to improve the collaboration between patients and professionals and to improve the use of resources. The present study investigates the feasibility and effectiveness of the PPCP. The specific research questions of the present study are: Does the PPCP have an impact on the patient's quality of life? Does the PPCP improve the quality of care in management of chronic diseases? Does the PPCP improve patient's commitment with self-care? Does the PPCP impact on the use of health care services? The data consists of people aged at least 18 years living in the municipality of Siilinjärvi with diabetes, coronary heart disease or hypertension and who are recorded in in Siilinjärvi Health Care Center electronic patient record. The participating patients are recruited from those who contacts SiiIinjärvi Health Care Center in order to have a follow-up visit because of the treatment of their disease. This study aims to recruit 700 patients. The participants are allocated into the intervention group and into the control group receiving usual care. Intervention consists of the PPCP. This includes the patient activation questionnaire form, a visit to the nurse who conducts the measurements (blood pressure, waist measurement, weight and length) and a visit to the general practitioner who discusses and agrees with the patient about the treatment goals and follow-up resulting in the written PPCP. The main out-come measures are the quality of health related life measured with the 15D; the level of patient's activity in self-care with the Patient Activation Measurement (PAM); life satisfaction, self-rated health, a reduction in productivity with the Work Productivity and Activity Impairment Questionnaire (WPAI: GH), and the disease specific measures (blood pressure, HbA1C, LDL-cholesterol, body mass index and waist measurement). In addition, pain intensity and interference (NRS 0-10), mood (BDI-21), the number of visits and phone calls and referrals are measured.
Title: Combined Optical Coherence Tomography Morphologic and Fractional Flow Reserve Hemodynamic Assessment of Non-Culprit Lesions to Better Predict Adverse Event Outcomes in Diabetes Mellitus Patients COMBINE (OCT-FFR) Prospective Register To study the natural evolution of patients with at least one intermediate angiographic but non-hemodynamic significant stenotic lesion, in two subgroups of patients, with TCFA vs. no TCFA as detected by OCT imaging and to compare these two groups of patients with each other as well as to a subset of patients with FFR-positive and PCI-treated intermediate lesions on future MACE.
To determine whether PET-MRI can obtain comparable images to PET-CT in those with coronary artery disease.
Medical scientists have found that people with diabetes who take the drug Metformin have less age-related disease than those taking other treatments and researchers believe it may prevent numerous diseases and conditions that effect older people. In addition, metformin extends lifespan in some animal models of human disease. The purpose of this study is to see if taking Metformin causes changes in blood cells consistent with improved health and longevity in people who do not have diabetes. In this study Metformin will be compared to placebo. A placebo is a substance, like a sugar pill, that is not thought to have any effect on a participants disease or condition. In this study participants will either receive the active study medication, Metformin or placebo which is not active. Placebos are used in research studies to see if the drug being studied really does have an effect.
Comparison of safety and long-term effects of BioMimeTM stent and Ultimaster® stent with Xience® stent
Primary Objective: To compare the efficacy of alirocumab (Praluent®) with standard of care (SoC) on coronary atheroma progression (percent change in normalized total atheroma volume [TAV]) after 9 months of treatment in participants who had acute coronary syndrome (ACS) within 4 weeks prior to randomization, with hypercholesterolemia treated with statin. Secondary Objectives: - To compare the efficacy of alirocumab (Praluent®) with SoC on secondary endpoints including absolute change in percent atheroma volume and normalized TAV after 9 months of treatment. - To evaluate the efficacy of alirocumab (Praluent®) on low-density lipoprotein cholesterol (LDL-C), apolipoprotein B, triglycerides, non-high-density lipoprotein cholesterol and lipoprotein (a) after 9 months treatment. - To evaluate the safety of alirocumab (Praluent®) including the occurrence of cardiovascular events (coronary heart disease death, non-fatal myocardial infarction, fatal and non-fatal ischemic stroke, unstable angina requiring hospitalization) throughout the study.
Both intravascular ultrasound (IVUS) and optical coherence tomography (OCT) are standardly used and have been extensively studied separately to guide percutaneous coronary intervention and improve long-term outcomes. In this study, the investigators aim to directly compare high-definition IVUS images to OCT in the same patients to determine the differences between each modality as they relate to imaging coronary pathology, with the goal of determining which modality is most appropriate in particular clinical scenarios.