Active clinical trials for "Coronary Artery Disease"

The SYNTAX-score has been proposed as a tool for risk stratification and guiding revascularization therapy in patients with complex coronary artery disease. There are limited data on the prognostic value of the SYNTAX-score among elderly patients. Aim of this study was to investigate whether age modifies the impact of the SYNTAX-score on all-cause mortality at 2 years after percutaneous coronary intervention (PCI).

Currently, contrast-induced kidney injury cannot be diagnosed on the day of cardiac catheterization. Recently, proenkephalin (penKid) was introduced as a new glomerular filtration marker. The aim of this study is to investigate whether the change in penKid level allows for early detection of affected patients.

The PTRG-DES consortium is a coalition composed of multi-center, real-world registries including CAD patients treated with DES in South Korea. From 9 academic registries in Korea, a total of 13,160 patients were enrolled for this database between July 2003 and August 2018. The aim of the study was to investigate long-term prognostic implications of platelet function and genotypes after DES implantation for significant CAD in South Korea.

To determine factors associated with repeat revascularization among adults aged 25 years and above within 5 years of first Percutaneous Coronary Intervention (PCI) at a tertiary care hospital.

This comparative diagnostic accuracy study will determine the accuracy of a noninvasive wearable infrasonic sensor to detect the mechanical, electrical, and hemodynamic function of the cardiovascular system.

Coronary angiography is a relatively safe and reliable invasive diagnostic technique, clinically considered the "gold standard" for diagnosing coronary heart disease. In 1989, Canadian doctor Campeau performed trans-radial angiography (TRA) for the first time percutaneous puncture of the radial artery. In 1993, Dutch doctor Keimeneij and others completed the first trans-radial coronary intervention (trans-radial intervention, TRI) . After nearly 30 years of clinical practice, the radial artery approach has become the first choice for coronary intervention and treatment. Compared with the femoral artery approach, the radial artery approach has the advantages of fewer traumas, less risk of bleeding, shorter hospital stay, and patients' early mobility. However, there are also few disadvantages of the radial access, such as small inner diameter, repeated puncture prone to spasm, limiting the implantation of larger sheaths to treat complex coronary artery diseases and postoperative complications such as thickening and stenosis and occlusion of the radial artery. The incidence is higher, and so on.Previous studies have found that the mismatch between the radial artery's inner diameter and the sheath's diameter is an essential factor that causes complications such as thickening, stenosis, and occlusion of the radial artery after intervention. Patients with coronary heart disease often need to repeat coronary interventional examinations and treatments. To ensure the radial artery route and avoid complications such as radial artery occlusion (RAO) after intervention for repeated use. It is worthy of attention. At present, in clinical ascending coronary angiography (CAG) or coronary interventional therapy (PCI), most of the radial artery sheath sizes are not selected according to the diameter of the patient's radial artery. The surgeon is only subjectively based on the patient's radial artery pulsation strength and coronary artery pulsation. It depends on the complexity of the pulse pathology. The incidence of radial artery occlusion reported in previous studies is 5%-38%. Most of these studies only rely on clinical forearm examination and pulse palpation without vascular ultrasound, radial angiography, and other imaging examinations to assess catheter placement. The degree of patency of the posterior radial artery has caused considerable differences in the reported incidence of radial artery occlusion. However, PCI treatment of complex lesions such as bifurcation, high calcification, severe distortion, chronic total occlusion, etc., usually requires a 7F sheath to provide better support and convenient equipment delivery. Still, the latter has the following problems: on the one hand, patients' pain, vasospasm, and other reasons can easily lead to failure of the radial artery sheath grafting; on the other hand, although the 7F sheath is used to complete PCI for complex lesions, the postoperative Radial artery occlusion is prone to occur, resulting in long-term failure to undergo re-radial artery angiography or PCI treatment.The innovation of this study lies in the use of ultrasound and radial angiography for the measurement of the inner diameter of the patient's radial artery, to examine the distribution of the inner diameter of the radial artery, and to predict the cut-off value of the radial artery inner diameter for successful sheath implantation and the inner diameter resection of the radial artery occlusion after the operation. The point value provides an evidence-based basis for selecting the sheath size of the radial artery in the future to achieve the clinical purpose of protecting the radial artery for repeated use.

Cardiovascular disease (CVD) is one of the leading causes of death in the Western Society. Patients with type 2 diabetes mellitus (T2DM) or dysglycemia have an increased risk of developing CVD. Furthermore, T2DM have an increased risk of developing heart failure, especially non-systolic, whether or not this is correlated to stepwise abnormal glycemic status is not fully investigated. The aims of this study are to investigate association between 1) Coronary plaque burden and morphology to glycemic status (normal glucose tolerance (NGT), dysglycemia (impaired fasting glucose (IFG) or impaired glucose tolerance (IGT)) and diabetic oral glucose tolerance test (OGTT) in participants without known T2DM), 2) Coronary plaque burden and morphology to diastolic and systolic function of the left ventricle including 2D speckle-tracking assessments, 3) Glycemic status to diastolic and systolic function of the left ventricle including 2D speckle-tracking assessments In this descriptive study, 500-800 asymptomatic men aged 65-75 without known diabetes will be included and divided into three subpopulations according to glycemic status. Blood sample, oral glucose tolerance test (OGTT), echocardiography and Coronary CT Angiography (CCTA) will be performed at inclusion

The investigators assessed the hypothesis that whether RH-PAT index (RHI) as a marker of endothelial dysfunction could predict occurrence of ISR after percutaneous coronary intervention (PCI).

Coronary calcium hampers accurate evaluation of the coronary arteries with coronary computed tomography angiography (CCTA). A novel approach to potentially overcome this limitation is coronary calcium subtraction. The primary hypothesis of the study is: - Coronary calcium subtraction CCTA will improve diagnostic accuracy as compared to conventional CCTA on a per-patient basis

Use of vasopressor to maintain Mean Arterial Pressure on Cardio Pulmonary Bypass can lead to decreased cerebral flow and oxygenation in individual patients and this can be detected by means of cerebral oxymetry.