View clinical trials related to Coronary Artery Calcification.
Filter by:The IVL- ELCA DRAGON Registry is a multicenter study that enrolled consecutive patients with stent underexpansion treated with IVL ora ELCA in high-volume PCI centers. The primary efficacy endpoint was device success (technical success with a final stent expansion ≥ 80%). Thirty days device-oriented composite endpoint (DOCE: cardiac death, target lesion revascularization, or target vessel myocardial infarction) was the secondary endpoint.
Clinical study: - Methods: observational transversal two-arm cohort study including adults living with HIV (PLHIV) and HIV negative subjects (HIV-) at intermediate cardiovascular risk. No study specific interventions were performed. - Participants: consecutively recruited at two large public hospitals in Paris and Annecy, France where participants were referred for routine cardiac risk stratification. - Recruitment: was from June 2013 until April 2016. - Data: anonymous study data were collected during the ambulatory visit. No follow-up was conducted. Study objectives: - Primary: compare coronary artery calcification (CAC) score between PLHIV and HIV- in order to bridge gaps in current knowledge. - Secondary: assess parameters linked to CAC score including predictors and their prevalence, association with carotid/femoral atherosclerosis, and cardiovascular risk scores (ASCVD and HEART score). Study hypotheses: - Primary: CAC scores would not be different between PLHIV and HIV- - Secondary: prevalence of traditional CV risk factors would be lower in PLHIV but that HIV-related nontraditional CV risk factors (including lower grade chronic inflammation, immune dysregulation, and ARV exposure duration) would be associated with higher CAC scores and higher CV risk scores Study Rational: - PLHIV have an increased risk of atherosclerotic cardiovascular events compared to the general population. Primary prevention for PLHIV is important but challenging as traditional cardiovascular risk scores do not account for HIV-related factors. - Computed tomography coronary artery calcium (CAC) score using the Agatston score is useful for detecting and quantifying coronary calcifications. In the general population, CAC score is predictive of future cardiovascular events.
The IVL-Dragon Registry was a multicenter study that enrolled consecutive patients with stent underexpansion treated with IVL in high-volume PCI centers. The primary efficacy endpoint was clinical success, defined as a reduction of stent underexpansion to <30% with no evidence of in-hospital device-oriented composite end point (DOCE) (defined as a composite of cardiac death, target lesion revascularization, and target vessel myocardial infarction).
The investigators planned to research the association between plasma melatonin and coronary artery calcification in a Chinese population.
Diabetes is not a coronary risk equivalent, despite cardiovascular disease is the most common cause of death in diabetes. So, to identify diabetic patients at high cardiovascular risk is necessary. Coronary artery calcification score predicts major coronary events, and improves risk reclassification in asymptomatic diabetic patients. But, cornary artery calcification score is expensive and exposes patients to radiation. So, it cannot be used for large-scale screening. It could be interesting to identify the predictive factors of coronary artery calcification score. Toe-brachial index is relevant in diabetic patients for the screening of peripheral arterial disease, and predicts cardiovascular events. The aim of this study is to evaluate the association between toe-brachial index and coronary artery calcification score in asymptomatic patients with type 1 or 2 diabetes. The hypothesis is that toe-brachial index is associated with high coronary artery calcification score. It could be performed first to identify patients who require a coronary artery calcification score. It measurement is reliable, fully automated, repoducible ans cost-effectiveness. This is a cross-sectional study, with restrospective data collection. All patients addressed to a one-day hospitalization to assess cardiovascular comorbidities are eligible. Data are collected in patients'medical records. Clinical, biological and imaging data were collected previously during their one-day hospitalization
Vascular calcification is a frequent complication in dialysis patients and is strongly associated with mortality. Its pathogenesis is complex and involves a series of markers that act on the vascular microenvironment. There is evidence that aldosterone is one of the biomarkers and may have a role in osteoinductive pathways.The aim of this study was to evaluate the effect of spironolactone, an inhibitor of mineralocorticoid receptor, in the progression of coronary calcification in patients undergoing peritoneal dialysis.
Cardiac computed tomography (CCT) is one of the standard non-invasive imaging techniques allowing imaging of the heart and coronary arteries with a high temporal and spatial resolution. The high sensitivity and negative predictive value (NPV) of coronary CT angiography (CCTA) make it a valuable tool in the assessment of coronary artery disease (CAD) in patients with low to intermediate risk for CAD, especially to rule out CAD. This risk stratification can be done with help of multiple different risk-calculators (e.g. the updated Diamond-Forrester model by Genders et al. 2012). These calculators take different variables into account, e.g. advanced age, gender, blood pressure, diabetes mellitus (DM), lipid profile and smoking. The aim of CCTA is a high diagnostic accuracy, which depends on both optimal intravascular enhancement (in Hounsfield Units; minimal 325 HU) and contrast-to-noise ratio (CNR). Optimal intravascular enhancement and CNR depend on different factors such as scan technique (e.g. tube voltage, tube potential), parameters of the administered contrast material (CM) and patient related factors (e.g. cardiac output (CO), body weight (BW)). Patients with cardiac diseases often have multiple risk factors for developing contrast induced nephropathy (CIN), e.g. diabetes mellitus, advanced age, hypertension and chronic kidney disease. Although the relationship between CTA and CIN has recently come to discussion (AMACING trial; Nijssen et al. 2017), it is still desirable to minimise the CM volume used in these patients. One method to reduce the CM volume is to personalise the injection protocols. The personalisation of injection protocols to the individual patient is gaining more attention in the field of CT imaging. The goal is to individualise the injection protocols to a level, where the patient only receives the minimal amount of CM needed to acquire a diagnostic scan, while maintaining a diagnostic image quality. Many techniques are available and have been studied, e.g. adjustment of CM volume to scan protocol, CO, lean body weight (LBW) and BW. However, no data is available on which of these is the most beneficial method for the personalisation of CM injection protocols. Therefore, the aim of this study is to assess the performance of three different personalized injection protocols (based on CO, LBW and BW) in CCTA with regard to image quality in comparison to previously used protocols in our department. We hypothesize that the personalized injection protocols will be non-inferior, provide a homogenous coronary enhancement (less non-diagnostic scans) in patients, and will account for a reduction of CM volume in our department in comparison to the previously used protocols.
The primary objective is to assess the effect of 2 dose levels of SNF472 (300 mg and 600 mg) compared to placebo on the progression of coronary artery calcium volume score over a 12-month (52 weeks) period in ESRD patients on HD
OBJECTIVES: To investigate the incidence of cardiovascular events as well as progression of coronary artery calcium (CAC) in healthy middle-aged subjects over a period of 7 years, and the relation to traditional as well as new cardiovascular risk factors. METHODS: The Danrisk cohort was established in 2009-2010 based on random retrieval from the Danish national civil registry (N=1825). Initially, distribution of gender, area of residence and year of birth (1949 or 1959) were equal among the 4 involved centres (OUH, Svendborg, Vejle and Esbjerg). A total of 1257 subjects (69%) accepted the invitation to undergo cardiovascular risk evaluation including non-contrast enhanced cardiac CT-scan for CAC estimation, and a total of 1227 subjects were found free of cardiovascular disease (CVD) and diabetes (DM), and was included in the study back then. In 2014-2015 the DanRisk cohort was invited to a 5 year follow-up examination. The investigators examined a total of 1031 subjects (82%) in the investigators 4 regional centres. The follow-up examination included general health evaluation and estimation of CAC by non-contrast enhanced cardiac CT-scan. Information of death, cardiovascular events and medication usage was obtained from the Danish national patient register, the Danish register of causes of death and the Danish national database of reimbursed prescriptions in 2016.
Coronary artery disease (CAD) remains the leading cause of mortality in the UK with an estimated 80,000 fatalities in 2010. Coronary artery calcification (CAC) is associated with atherosclerotic plaque burden and cardiovascular mortality. Mechanisms underlying isolated CAC have not been as yet been fully explained. MicroRNAs (miRNAs), known to act as regulators of gene expression, have also emerged as powerful biomarkers in the diagnosis and prognosis of cardiovascular disorders and may be used in the detection of CAC. We aim to investigate the potential for a "microRNA-signature" in patients with CAC by performing a prospective, case-controlled study to identify pathways associated with CAC in humans. Previous research has demonstrated an inverse relationship between CAC and bone mineral density (BMD), suggesting that these processes may be linked. In a further substudy we plan to define the relationship between CAC and BMD as well as a number of markers of bone metabolism.