View clinical trials related to Myocardial Ischemia.
Filter by:Coronary heart disease and myocardial infarction have become a major threat to the health of our people. Their incidence rate and mortality rate are still rising. Dyslipidemia is one of the important risk factors. However, little is known about the genetic information of myocardial infarction and dyslipidemia, especially in Chinese population. This project aims to identify new loci related to myocardial infarction and blood lipid level in Chinese population, compare these gene variations with 94 gene variations related to myocardial infarction and blood lipid level in European population, and extract gene variations related to myocardial infarction and blood lipid level in Chinese population. In this case-control study, 3998 blood samples and 702 new blood samples were collected from the sample bank of Peking University Third Hospital and first hospital, respectively. The blood samples were collected from Asian heart disease hospital, Taiyuan cardiovascular disease hospital, Beijing Third Hospital and Shijingshan community follow-up population According to the results of carotid ultrasound or treadmill exercise test, the samples were divided into myocardial infarction group and control group, and the corresponding blood lipid levels were collected. The samples were genotyped by the metabochip gene chip of Illumina company. The data were processed by the calling algorithm of BeadStudio Gentrain 1.0 and the GenoSNP software. The related genes of myocardial infarction were analyzed by logistic regression, and the related genes of blood lipid level were analyzed by linear regression.
In a prospective cohort study (n = 1.000), the investigators aim to investigate the correlation between cardiac biomarkers and advanced echocardiography and determine whether these are prognostic markers of heart disease in patients suffering from psoriasis.
BACKGROUND: Advanced treatment regimens have reduced cardiovascular mortality resulting in an increasingly older Ischemic Heart Disease (IHD) population in need of cardiac rehabilitation (CR) , the majority (74%) is above 60 years. The positive effect of CR is well established; CR reduces cardiovascular mortality, lowers hospital admissions, and improves quality of life among patients with IHD. These positive effects of CR has also been established among older patients. The inherent problem lies in the low attendance rate, often below 50%. Several studies, including studies from Denmark, have shown that low participation in CR is most prevalent among older, vulnerable and female patients. The notion vulnerable covers patients with low socioeconomic position (SEP), patients with non-western background and patients living alone, as these groups have particularly low CR attendance. Effective interventions aiming at increasing CR attendance among these low attending groups are thus warranted and the current study will seek to address this. AIM: To test the effect of a peer-mentor intervention among older vulnerable IHD patients. DESIGN AND METHODS: The study is designed as a two arm RCT-study applying mixed methods. Power calculations were based upon primary outcome 'Cardiac rehabilitation (CR) attendance'. Proportion attending CR in control group was set at 25% and intervention group at 50% based upon previous research. With a 5% significance level and 80% power. 110 patients were required (55 in each group) to have a 80% chance of detecting, as significant at the 5% level, an increase in the primary outcome measure from 25% in the control group to 50% in the experimental group. Expected dropout was 6%. I.e., in total 117 patients are enrolled. Patients (n=117) are recruited by a dedicated research nurse before discharge from the cardiology department at Nordsjællands Hospital and randomized (with 1:1 individual randomisation) to peer-mentor intervention or usual care. Data is collected through both qualitative and quantitative data (mixed methods). Data is collected at three timepoints, baseline, 12 weeks and 24 weeks. The patients (mentees) are matched with peer-mentors. Peer-mentoring (i.e. mentoring by a person with a similar life situation or health problem as one self) is a low-cost intervention that holds the potential to improve CR attendance and improve physical and psychological outcomes among older patients. Peer-mentors are role models who can guide and support patients overcoming barriers of CR attendance. Peer-mentoring is unexplored in a CR setting among older, female and vulnerable IHD patients; establishing the novelty of the current study.
The purpose of this clinical study is to evaluate the safety and efficacy of HS-001 CS transplanted into severe heart failure patients with underlying ischemic heart disease for 26 weeks after transplantation.
The purposes of this study are 1) to explore the association between multi-dimension facial characteristics and the increased risk of coronary artery diseases (CAD); 2) to evaluate the diagnostic efficacy of multi-dimension appearance factors for coronary artery diseases.
The trial will include 75 patients with evident or suspected ischemic heart disease refered to Department of Nuclear Medicine & PET Centre, Aarhus University Hospital, for perfusion imaging by 15O-H2O PET/CT scan of the heart during rest and stress. Instead of the clinical scan participants will undergo perfusion imaging by 15O-H2O PET/MR. The clinician will receive diagnostic information based on the 15O-H2O PET scan as if the patient had not participated in the study. As such, the study has no influence on the diagnostics or treatments of the patient. Data from the scans will be used to compare 15O-H2O PET with cardiac MR for evaluation of myocardial perfusion. Follow up will be done for up to 10 years in regards to major cardiovascular events in order to determine the prognostic value of the scan.
Yearly, 180 000 patients in the Netherlands are referred to a cardiologist with symptoms suspected of coronary artery disease (CAD). To assess this, multiple diagnostic tests are available. Non-invasive imaging tests, such as coronary CT-scan, are safe, relatively cheap and can effectively rule-out CAD. However, when CAD is present, coronary CT-scan cannot assess the restriction in blood flow caused by the stenosis. Cardiac angiography with invasive blood flow measurements is required to assess this restriction in blood flow. This is an invasive test, more expensive than CT and it is accompanied by certain risks. Most patients in whom CAD is present do not need treatment, and would therefore benefit from non-invasive diagnostic tests. To reduce the number of unnecessary cardiac angiography with flow measurements, new imaging techniques have been developed. These techniques use CT- or angiographic images to calculate the restriction in coronary blood flow and determine the need for treatment. This study is designed to assess the safety and efficacy of these techniques when used as an addition to coronary CT-scan. Subjects are eligible if their CT-scan indicates possibly significant CAD. To determine need for treatment of a subject's CAD, the investigators will randomize subjects in three arms. One arm consists of additional CT-derived calculation of coronary blood flow, one arm consists of angiography-derived calculation of coronary blood flow and one arm consists of standard care, coronary angiography and invasive coronary blood flow measurements. After these tests, subjects are treated and followed according to routine care guidelines. Additionally, subjects are requested to complete 5 questionnaires in a 12 month follow-up period. The investigators expect that the total number of invasive cardiac angiographies with additional blood flow measurements can be reduced by half with the use of new imaging techniques. The investigators expect that this will lead to a reduction in healthcare costs, complications and a lower burden of diagnostic tests for patients. The investigators do not expect a difference in primary endpoints between the study groups.
This study is an exploratory clinical study to observe the improvement of heart function before and after the treatment by human umbilical cord mesenchymal stem cells, and the purpose is to evaluate the safety and effectiveness of human umbilical cord mesenchymal stem cells in the treatment of heart failure. The study is a randomized parallel controlled study. Patients receive a review of which main content includes symptom improvement, cardiac function improvement, and adverse events.
The DCB-ACS trial is a prospective, multi-center, non-inferiority, randomized controlled trail. The purpose of this trial is to evaluate the safety and efficacy of drug-coated balloon(DCB) in de novo lesions for acute coronary syndromes (ACS) .
The novolimus-eluting DynamX bioadaptor system is composed of 71 µm cobalt-chromium sinusoidal rings connected to each other axially by three S-links Each ring contains three uncaging elements that are positioned at equal distance in low stress regions of struts oriented in a helical configuration along the length of the bioadaptor which remain intact after uncaging. The uncaging elements consist of three separable junctions per ring held together by a 6 µm polymer coating that is resorbed over six months, allowing uncaging of the vessel and adaptive remodeling. Previous study showed the DynamX biodaptor is safe and effective treating in de novo coronary lesion. It also increased of vessel and device area while maintain in the mean lumen area after one year follow-up. However, the unchanging effect of Dynamx bioadaptor on coronary geometry change remained unknown. The present randomized control study is designed to investigate the differences of dynamic coronary artery geometry changes evaluated by coronary computed tomography angiography after DynamX Bioadaptor and permanent metallic DES implantation.