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Coronary Artery Disease clinical trials

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NCT ID: NCT06266065 Not yet recruiting - Clinical trials for Coronary Artery Disease

Impact of Coronary Sinus Flow Reducer on Coronary Microcirculation and Myocardial Ischemia

Start date: February 2024
Phase: N/A
Study type: Interventional

The increasing number of coronary revascularization procedures, coupled with improvements in drug therapy, has significantly extended the lifespan of patients with coronary artery disease (CAD). However, there remains a significant number of CAD patients who experience disability due to chronic refractory angina pectoris. These patients typically have severe diffuse CAD and are not candidates for further revascularization involving surgical coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI). The installation of a coronary sinus reducer (CSR) represents a new option for percutaneous treatment of patients with refractory angina pectoris who are not suitable for surgical or percutaneous revascularization. The CSR device is designed as an hourglass-shaped stent that is positioned transcatheterally in the distal part of the coronary sinus. This increases intramyocardial venous pressure, which is believed to lead to a more favorable perfusion ratio between the ischemic subendocardial and non-ischemic subepicardial myocardium. Previous research has demonstrated that the implantation of CSR is a safe and relatively straightforward procedure. However, broader implementation and better patient selection are still limited by the fact that the exact mechanism of action remains controversial. It has not been determined why some patients have better outcomes compared to others with seemingly similar coronary artery disease. It is known that patients with atherosclerotic changes in the epicardial coronary arteries also have a certain degree of coronary microcirculation disease (the coronary vascular bed encompassing vessels with a diameter < 200 μm), which cannot be assessed through standard coronary angiography. This study aims to assess changes in coronary microcirculation after the implantation of CSR by measuring coronary flow reserve (CFR) and index of microcirculatory resistance (IMR) before and 6 months after the procedure. Furthermore, our goal is to associate these changes with clinical symptoms and myocardial ischemia.

NCT ID: NCT06258681 Not yet recruiting - Clinical trials for Coronary Artery Disease

Customizable Respiratory Exercise Device in Individuals Who Have Undergone Cardiac Surgery

Start date: February 28, 2024
Phase: N/A
Study type: Interventional

The cardiorespiratory system integrates systemic and pulmonary circulation while ensuring adequate oxygenation of the body at rest and during exercise. In addition to chronic respiratory problems that mainly affect the lungs, airways and pulmonary vascular system, respiratory capacity and respiratory muscle strength can be negatively affected in a wide spectrum including cardiac diseases, surgeries, neuromuscular diseases, obesity, long-term bed rest, aging and inactivity. Weakness of the respiratory muscles causes important secondary consequences by causing the increased respiratory demands not to be met during physical activity. It has been reported that respiratory muscle training applied within the scope of pre-operative and post-operative cardiac rehabilitation program is beneficial in terms of increasing respiratory functions, reducing the risk of post-operative complications and length of stay. Respiratory muscle training is known to have many potential beneficial effects on patients undergoing cardiac surgery. Different methods and devices are used to improve and develop the functions of the inspiratory and expiratory muscles and each training method and device has differences. Therefore, it is thought that examining the clinical effects of using a personalized breathing exercise device on respiratory functions, respiratory muscle strength and functional capacity in individuals who have undergone cardiac surgery will contribute to the literature.

NCT ID: NCT06257511 Not yet recruiting - Clinical trials for Coronary Artery Disease

Developing an Intervention to Improve the Non-Technical Skills of the Cardiac Surgical Teams

Start date: June 2025
Phase: N/A
Study type: Interventional

Teams of several medical professionals conduct high-risk cardiac surgical procedures. These professionals work in complex, stressful operating room environments requiring effective communication and teamwork skills. Surgeons, anesthesiologists, perfusionists, nurses, and surgical technicians working in this environment are also vulnerable to human errors. Non-technical skills for surgeons (NOTSS), defined as cognitive skills (situation awareness, decision making) and social skills (leadership, communication, and teamwork) underpinning medical knowledge and technical skills, are essential contributors to better cardiac surgery outcomes. Yet most of the surgical education programs focus only on technical skills, and interventions to improve the non-technical skills of cardiac surgical teams are scarce. The proposed research will develop and pilot-test and evaluate the preliminary effectiveness of an intervention to improve the non-technical skills of cardiac surgical teams.

NCT ID: NCT06255769 Not yet recruiting - Myocardial Ischemia Clinical Trials

Diagnosis of Myocardial Ischemia With MCG Using SPECT as a Reference Standard

Start date: February 12, 2024
Phase:
Study type: Observational

This is a prospective clinical study aiming to investigate the efficacy of Magnetocardiography (MCG) in detecting myocardial ischemia in patients of a suspected non-ST-elevation-acute coronary syndrome (NSTE-ACS) by using Single photon emission computed tomography (SPECT) as the gold standard for determining the presence and severity of myocardial ischemia.

NCT ID: NCT06253884 Not yet recruiting - Clinical trials for Coronary Artery Disease

Utilizing Carbon Dioxide for Assessing Coronary Blood Flow in Subjects With Coronary Artery Disease

NIMO-CAD
Start date: July 1, 2024
Phase: N/A
Study type: Interventional

This is a prospective pilot study to evaluate the safety, tolerability and technical feasibility of utilizing carbon dioxide for assessing coronary blood flow in subjects with coronary artery disease.

NCT ID: NCT06252350 Not yet recruiting - Clinical trials for Coronary Artery Disease

Clinical Evaluation of Radiation Reduction for Optimized Safety - Pilot Study

CERROS - Pilot
Start date: February 12, 2024
Phase:
Study type: Observational

The primary objective of this study is to determine whether a reduced radiation protocol (RRP) in which angiograms are acquired at ultralow radiation doses and then processed using spatiotemporal enhancement software can produce similar quality angiographic images as compared with standard techniques.

NCT ID: NCT06246188 Not yet recruiting - Clinical trials for Coronary Artery Disease

Use of Stress-CMR Using Regadenoson and GE-267 in Adult Patients With Known or Suspected Coronary Artery Disease

Start date: May 1, 2024
Phase:
Study type: Observational

Stress cardiac MRI is crucial for diagnosing coronary artery disease in adults. Currently, it is mainly performed with vasodilators in specialized centers. Introducing mobile CMR units could increase accessibility, especially in rural areas, potentially reducing unnecessary invasive procedures. The objectives include demonstrating the feasibility of mobile stress perfusion CMR, detecting CAD using Regadenoson, and evaluating the image quality of GE-267 in real-world scenarios.

NCT ID: NCT06241534 Not yet recruiting - Clinical trials for Coronary Artery Disease

Supporting Methods in Cardiovascular Diseases Rehabilitation

Start date: February 1, 2024
Phase: N/A
Study type: Interventional

The study evaluates how various therapeutic approaches perform in addressing depression, anxiety symptoms, and stress levels among patients in the second stage of cardiac rehabilitation. This study aims to evaluate the influence of the used therapeutic approaches on psychological outcomes and to compare the effectiveness of these therapies.

NCT ID: NCT06240702 Not yet recruiting - Clinical trials for Coronary Artery Disease

Effects of Early Telerehabilitation in Coronary Artery Bypass Surgery Patients

Start date: April 20, 2024
Phase: N/A
Study type: Interventional

The aim of this study was to investigate the effects of phase I and early phase II rehabilitation with telerehabilitation method and sleep hygiene training on physical capacity, cardiac functions, anxiety level, quality of life and sleep quality in patients undergoing coronary artery bypass graft surgery.

NCT ID: NCT06235112 Not yet recruiting - Clinical trials for Coronary Artery Disease

AI Detection of Incidental Coronary Artery Calcium to Enhance Cardiovascular Disease Prevention

AI INFORM
Start date: March 1, 2024
Phase: N/A
Study type: Interventional

AI INFORM is a multicenter randomized trial that will test the hypothesis that providing clinicians information on the presence and amount of coronary artery calcifications (CAC), will result in initiation or intensification of preventive therapies. The study will use a cloud-based artificial intelligence (AI) platform (Nanox.AI) that can analyze non contrast chest CT and estimate the amount of CAC.