Active clinical trials for "Coronary Disease"

The study aims to: Characterize coronary artery disease (CAD) using CT Angiography (CTA) and scaling power law in 100 patients with obesity Characterize cardiac remodeling using curvedness-based MRI in 100 patients with obesity Compare the differences of cardiac and vascular remodeling in patients with metabolic syndrome and those without

Exercise treadmill test (ETT) is frequently done, inexpensive, relatively safe investigation for diagnosis of ischemic heart disease and prediction of exercise capacity. Ischemic heart disease is increasing by leaps and bounds all over the world even in the developing countries like Bangladesh. The incidence rate of coronary artery disease (CAD) is not limited to male gender as previously seen. As a cause of industrialization and increased life expectancy, incidence of ischemic heart disease in females is escalating now in Bangladesh also. Though ETT is a well accepted investigation to diagnose CAD, it has a high false positive and false negative result if ST segment response alone is calculated for interpretation of the test. Duke Treadmill Test and Simple Treadmill Test are valid and well known scores which can predict coronary artery disease burden more efficiently than ST segment response alone. Computer generated Cleveland clinic score is another valid treadmill score which has a complex algorithm but effective way to predict 3 year and 5 year survivability. These three scores are well tested on western population but to our best knowledge there is little or no information regarding their predictability of CAD in Bangladesh. It's well known that ETT has a high false positive result in female population, so applying the scores may render ETT more efficient and abrogate unwanted risk of undergoing coronary angiography to diagnose CAD in females. In this study the investigator will try to find out the accuracy of commonly applied treadmill scores and ST segment response to diagnose CAD as well as accuracy of computer generated Cleveland Clinic Score will be tested. Total 110 people including male and female will be included according to inclusion and exclusion criteria and informed written consent will be taken. The patients who have undergone ETT and coronary angiogram with in six months for confirmation and identification of coronary artery disease in accordance with the recommendation of ACC guideline for CAG will be selected . All available data will be analyzed using SPSS. The accuracy of different scores will be calculated and compared with each other. According to currently available data from studies in western population the treadmill scores will have good predictability and will be efficient to abolish high false positive result in female population in Bangladesh.

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.

This study is a prospective study of patients referred for coronary angiography at Bellevue Hospital Center and NYU Langone Medical Center. Subjects enrolled in this study will complete two one-page questionnaires, including information about diet, lifestyle, perceptions of health and perceived barriers to healthy lifestyles. Patients will be contacted at one and six months following their procedure to complete follow-up questionnaires to assess changes in diet and perceptions of their health after knowing the results of their coronary angiogram. The primary outcome measure will be change in dietary patterns/perception of lifestyle between baseline and one- month and six-month follow-up. Secondary measures will include association between dietary patterns/perception of lifestyle and degree of CAD and socioeconomic status.

The primary hypothesis is that computed tomography (CT) is superior to invasive coronary angiography (ICA) concerning the primary endpoint MACE (MACE = major adverse cardiovascular event; defined as at least one of the following: cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke) after a maximum follow-up of 4 years, in other words, that CT will result in a significantly lower rate of MACE. Secondary outcomes include MICE (MICE = minor cardiovascular events), procedural complications, cost-effectiveness, radiation exposure, cross-over to CT or ICA, gender differences, and health-related quality of life.

The HIV/HEART study (HIVH) is an ongoing, prospective, multicentre trial that was conducted to assess the incidence, the prevalence and the clinical course of cardiovascular diseases (CVD) in HIV-infected patients. The study population includes outpatients from specialized HIV-care units of the German Ruhr region, who were at least 18 years of age, were known to have a HIV-infection and exhibited a stable disease status within 4 weeks before inclusion into the trial. From March 2004 (Pilot phase) to May 2014 (7,5 year Follow-up) 1481 HIV+ patients were recruited in a consecutive manner. The standardised examinations included a targeted assessment of medical history and physical examination. Blood was drawn for comprehensive laboratory tests including HIV specific parameters (CD4 cell count, HIV-1 RNA levels) and cardiovascular items (lipid concentrations, BNP values and renal parameters). Furthermore, non-invasive tests were performed during the initial visit, including additional heart rate and blood pressure measurements, electrocardiogram (ECGs) and transthoracic echocardiography (TTE). Examinations were completed in accordance with previously defined standard operating procedures. CVD were defined as coronary, cerebrovascular, peripheral arterial disease, heart failure or cardiac vitium.

This article uses the smart medical case management tracking system, combined with various terminal devices to fully record the measured data (pulse, blood pressure) for case home care tracking to prevent the occurrence and deterioration of the disease. Therefore, with the promotion of the eHealth medical staff and members of the family can instantly grasp the health of the body and cultivate the habits of self-health management and enhance the quality of care. Therefore, we hope to use the Smart Health Cloud as an interventional measure to improve the care of patients with coronary artery disease, improve self-management ability and quality of life.

Cardiopulmonary bypass (CPB) induces a systemic inflammatory response and affects the organ vascular bed. Experimentally, the lack of pulsatility alters myogenic tone of resistance arteries and increases the parietal inflammatory response. The purpose of this study was to compare the vascular reactivity and the inflammatory response of the internal thoracic arteries (ITAs) between patients undergoing coronary artery bypass grafting (CABG) under CPB with a roller pump or with a centrifugal pump.

TruePhysioTM Sensor-equipped Ultrathin Pressure Microcatheter (referred to as TruePhysioTM Microcatheter below) is a novel device for evaluating the functional significance of coronary stenosis. This study will compare the differences, if any, between the coronary fractional flow reserve (FFR) measured by the TruePhysioTM Microcatheter and the Pressure Wire.

This single-center clinical trial is designed to evaluate the CardioFlux magnetocardiograph diagnostic imaging system to predict major adverse cardiac events (MACE) in patients referred for evaluation for coronary artery disease.