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Coronary Artery Disease clinical trials

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NCT ID: NCT03373565 Recruiting - Clinical trials for Ischemic Heart Disease

Snuff-box Deep Palmar Arch Artery Versus Radial Angiography

Start date: July 1, 2017
Phase: N/A
Study type: Interventional

Angiography is a common diagnostic and therapeutic procedure in patients with acute coronary syndrome (ACS). The complications are variable between mild self-limited complications to severe life-threatening complications which need early interventions. New angiographic methods are associated with variable complications. Death, myocardial infarction, and stroke are among major angiography complications. In addition, some local complications including bleeding at the site of insertion, infection, arteriovenous fistula, pseudoaneurysm, and thrombosis is reported after angiography. Radial and femoral methods are common angiographic methods. Its shown that radial method is associated with less complications and patients need shorter duration of hospitalization. Radial artery thrombosis is common complication of radial angiography. However, the prevalence is between 5 to 19 percent but often it is not clinically important. Risk of ischemia due to thrombosis is low because of blood flow in radial and ulnar and collaterals. In patients with incomplete palmar arch this is important and may cause ischemia. The aim of this study is to compare the outcomes of coronary angiography using Snuff-box deep palmar arch artery and radial artery in patients attending angiography center of Shahid Mohammadi hospital in Bandar Abbas in 2017.

NCT ID: NCT03373552 Recruiting - Clopidogrel Clinical Trials

Genetic Polymorphism Contributing to the Variability of Clopidogrel Response in Patients With Coronary Artery Disease

Start date: August 12, 2015
Phase: N/A
Study type: Observational [Patient Registry]

Clopidogrel non-responsiveness is probably multifactorial; several genetic and non genetic factors may contribute to impaired platelet inhibition by clopidogrel. In this regard, it is meaningful to determine genetic polymorphisms contributing to the variability of clopidogrel response in patients with Coronary Artery Disease (CAD). In fact, the recognition of these factors might predict the exposure to the risk of thrombosis and cardiovascular death in these patients. Therefore, the goal of this study is to determine the impact of the polymorphisms, affecting CYP2C19, ABCB1, PON1 and P2RY12 genes, on the response to clopidogrel in patients with CAD.

NCT ID: NCT03366649 Recruiting - Clinical trials for Coronary Artery Disease

Improving Mitral Repair for Functional Mitral Regurgitation

Start date: December 31, 2017
Phase: N/A
Study type: Interventional

The investigators are interested in determining the best surgical technique to correct functional mitral regurgitation, as there is currently not one technique that is established to work better than the other. The technique used in current clinical practice is undersizing mitral annuloplasty (UMA), in which a prosthetic ring is implanted onto the mitral valve to correct the leakage. Though widely adopted, durability of the repair is less, as 58% of the patients present with recurrent FMR within 2 years. There are no specific algorithms to predict who might have UMA failure, but research indicates that some geometric indices might be strong predictors. The investigators are interested in testing the hypothesis that, elevated lateral inter-papillary muscle separation (IPMS) is a predictor of post-UMA recurrence of FMR at 12 months. In the first part of this study, the study team will measure lateral IPMS before surgery, and relate to post-surgery FMR severity at discharge/30 days, 6 months and 12 months. A relatively newer technique is papillary muscle approximation (PMA), in which a suture draws together the two muscles that connect the mitral valve to the heart muscle prior to performing UMA. This reduces the lateral inter-papillary muscle separation (IPMS) and is expected to improve the durability of UMA. In the second part of this study, the investigators will perform PMA and UMA together and determine if FMR severity is reduced at discharge/30 days, 6 months and 12 months.

NCT ID: NCT03360981 Recruiting - Clinical trials for Coronary Artery Disease

Epicardial Fat and Clinical Outcomes After Coronary Artery Bypass Grafting in Diabetics vs. Non Diabetics

Start date: September 20, 2017
Phase: Phase 4
Study type: Interventional

Cardiovascular disease (CVD) is a group of diseases including both the heart and blood vessels, thereby including coronary heart disease (CHD). To date, diabetics have a higher incidence and prevalence of multivessels CHD. Treatments in multivessels CHD in diabetics include full medical anti ischemic therapy, and revascularization therapy (Percutaneous coronary intervention (PCI) and/or Coronary artery bypass grafting (CABG)). Randomized trials comparing multivessel PCI to CABG have consistently demonstrated the superiority of CABG in reducing mortality, myocardial infarctions and need for repeat revascularizations. After the CABG treatment, diabetics vs. non-diabetics evidenced a worse prognosis, and an increased mortality. Numerous molecular, epigenetics (as microRNAs), and other metabolic risk factors may condition the worse prognosis in diabetics vs. non diabetics after CABG. In this context, an increased epicardial fat tissue thickness may be independently associated with the prevalence of diabetes, and diabetics have an higher epicardial fat tissue thickness, volumetry, and enhanced metabolism. Therefore, after CABG, lifestyle and medical improvements may lead to the reduction of epicardial fat thickness, extension, and metabolism in both non-diabetics, and diabetics, ameliorating the prognosis. At moment, epicardial tissue function in diabetics is not well investigated in literature, and no data has been reported about new hypoglycemic drugs, and its pleiotropic effects on diabetics after CABG. Indeed, our study hypothesis was that, epicardial fat tissue dimension, and metabolic activity may be related to a different expression of inflammatory, oxidative, and apoptotics molecules, and epigenetic effectors in diabetics vs. non-diabetics. Secondary, these effectors, and epicardial tissue dimension and activity, may be controlled, after CABG, by incretin treatment in diabetics. Therefore, incretin therapy may be associated to the reduction in epicardial fat tissue thickness, and extension, with down regulation of different inflammatory, oxidative and apoptotics molecules, and epigenetic effectors involved in epicardial fat metabolism. Moreover, in this study authors will evaluate in diabetics vs. non diabetics, and in diabetic incretin-users vs. never.-incretin-users, all cause mortality, cardiac mortality, and Major adverse cardiac events (MACE) after CABG in diabetics vs. non diabetics, and diabetic incretin-users (6 months of incretin therapy) vs. diabetic never-incretin-users. Authors will correlate these clinical endpoints to the study of the epicardial fat anatomy and metabolism before and after CABG, and to circulating inflammatory and pro-apoptotic markers, epigenetic effectors, and stem cells in diabetics vs. non diabetics, and diabetic incretin-users (6 months of incretin therapy) vs. diabetic never-incretin-users.

NCT ID: NCT03360591 Recruiting - Clinical trials for Coronary Artery Disease

Functional Assessment In TAVI: FAITAVI

Start date: November 24, 2017
Phase: N/A
Study type: Interventional

The aim of this study is to compare the clinical outcome of patients with severe aortic valve stenosis and associated significant coronary artery disease treated with TAVI and a percutaneous myocardial revascularization dictated according to two different strategies: 1. the Angiographically-guided strategy; 2. the Physiologically-guided strategy.

NCT ID: NCT03358680 Recruiting - Clinical trials for Coronary Artery Disease

Temperature and Analgesia Monitoring During Cardial Parmonary Bypass

Start date: April 1, 2017
Phase: N/A
Study type: Observational

In this study, 1. Investigator will apply IOC2 to reflect the depth of analgesic during hypothermia in CPB period. 2. Furthermore, investigator evaluated the effectiveness of IOC2 monitoring for anesthetic depth versus commonly used vital sign monitoring based on factors such as blood pressure and heart rate. 3. Evaluate the other sedation co-relation measurement, include BIS , IOC2 to reflected the consciousness during the operation. 4. Evaluate the other hemodynamic index, include CO, SVV, CVP, PPV to reflect the circulation function , and the effect to the IOC2 and IOC1. 5. Describe the trend of all the measurement. detect the variation of the index during the temperature change during the CPB.

NCT ID: NCT03349385 Recruiting - Clinical trials for Coronary Arteriosclerosis

Registry of Secondary Revascularization

Start date: November 22, 2017
Phase: N/A
Study type: Observational [Patient Registry]

The study will evaluate patients with, at least, one previous procedure of coronary revascularization (surgical, percutaneous or both), that are referred for a new, clinically indicated, diagnostic coronary angiography, to describe their clinical characteristics, management, and prognosis, and will propose a prognosis-oriented classification.

NCT ID: NCT03344653 Recruiting - Clinical trials for Coronary Artery Disease

A Randomized Controlled Trial With Resolute Onyx in One Month Dual Antiplatelet Therapy (DAPT) for High-Bleeding Risk Patients

Onyx ONE
Start date: November 2, 2017
Phase: N/A
Study type: Interventional

The purpose of this study is to evaluate the clinical safety and effectiveness of the Resolute Onyx stent in subjects deemed at high risk for bleeding and/or medically unsuitable for more than 1 month DAPT treatment receiving reduced duration (1 month) of DAPT following stent implantation.

NCT ID: NCT03338504 Recruiting - Myocardial Ischemia Clinical Trials

Evaluating the Role of Coronary Artery Disease to Resolve the Diagnosis of Type 2 Myocardial Infarction

Start date: October 23, 2017
Phase: N/A
Study type: Observational

Myocardial injury is common in patients without acute coronary syndrome, and therefore international guidelines propose a classification of patients with myocardial infarction by aetiology. This differentiates between myocardial infarction due to plaque rupture (type 1) and myocardial oxygen supply-demand imbalance (type 2) in other acute illnesses. However, these guidelines have not been widely adopted as the diagnostic criteria for type 2 myocardial infarction are not clearly defined. Patients with type 2 myocardial infarction have poor long term outcomes, with at least twice the mortality at five years compared to those with an index type 1 myocardial infarction. Despite the majority of deaths being attributable to non-cardiovascular events, the rate of future type 1 myocardial infarction or cardiovascular death is similar regardless of index classification. If this future risk is related to the presence of underlying coronary artery disease, then there may be the potential to improve outcomes through targeted investigation and secondary prevention. We will undertake a systematic evaluation of the mechanism of myocardial injury and the role of coronary artery disease in 100 patients with elevated cardiac troponin concentrations where the diagnosis is likely to be type 2 myocardial infarction. These studies will help improve the assessment of patients with myocardial injury, refine the diagnostic criteria for type 2 myocardial infarction, and aid the design of future therapeutic trials.

NCT ID: NCT03335319 Recruiting - Clinical trials for Coronary Artery Disease

The Effect Of An Expanded Long Term Periodization Exercise Training In Patients With Cardiovascular Disease

Start date: October 1, 2017
Phase: N/A
Study type: Interventional

Benefits from cardiac rehabilitation (CR) programs are evidence based and widely recognized. Less than 50% of people who participate in hospital-based CR programs maintain an exercise regimen for as long as six months after completion. Despite the benefits associated with regular exercise training (ET), adherence with supervised exercise-based CR remains low. Current exercise guidelines for CR focus on moderate intensity steady state exercises, with walking and cycling being the most recommended types of ET. The repetitive nature of this type of activity can become monotonous for the patient, affecting exercise adherence, compliance and training outcomes. Exercise periodization is a method typically used in sports training, but the impact of periodized exercise to yield optimal beneficial effects in cardiac patients is still unclear. In healthy or trained populations, periodization aims to optimize ET adaptations as compared with non periodized training, to prevent overtraining and to avoid plateauing of training adaptations. Periodized methods are considered to be superior to non periodized methods in trained populations and appears to be superior in inactive adults. In most of the CR programs there are no periodization or exercise progression during medium to long term interventions. Further randomized controlled trials (RCT) are necessary to evaluate long-term periodization outcomes. The purpose of this research project is twofold: 1. To conduct a 12-month randomized control trial to evaluate the effects of a periodized ET regime versus a non periodized ET regime (guidelines) on VO2 peak, maximal strength, body composition, functionality and quality of life in cardiovascular disease patients. 2. to differentiate the effects of a 12-month periodized ET regime versus a non periodized ET regime on the different components of the oxygen kinetics response and oxidative adaptations in cardiovascular disease patients. These patients will be randomized in 2 ET groups: 1) periodization; 2) non periodization. This experimental design will occur during 48 weeks 3 times per week with 4 assessment time points: M0) before starting the ET program (baseline); M1) 3 months after starting the ET; M2) 6 months after starting the ET program and M3) 12 months at the end of the community-based ET program.