View clinical trials related to Coronary Artery Disease.
Filter by:The purpose of this research study is to compare the effectiveness of intravenous isotonic sodium bicarbonate with intravenous isotonic sodium chloride and oral N-acetylcysteine (NAC) with oral placebo for the prevention of serious adverse outcomes following angiographic procedures in high-risk patients.
This study is a randomized open label study that implies the administration of asprin according to three different regimens. The aims of the study are: - to establish whether coronary artery bypass surgery and / or aortic valve replacement surgery with bioprostheses is associated with changes in the rate of platelet regeneration that can reduce the effectiveness of aspirin administered at a dose of 100mg/die in terms of inhibition of platelet biosynthesis of thromboxane A2. - to determine whether these patients need a different (shorter) interval of administration in order to completely and permanently inhibit the platelet COX-1. The endpoints of this study are: - To evaluate the changes in the levels of TXB2 and 12-HETE in serum at 12 and 24 hours after administration of aspirin and the changes in the levels of 11-dehydro TXB2 urinary 8-iso-PGF2 alpha urinary, 2-3 dinor-6-chetoPGF1 alpha, Verify-NOW Aspirin, platelets crosslinked at 12 and 24 hours after administration of aspirin
The objective of the study is to assess the safety and efficacy of Angiomax® (bivalirudin) versus unfractionated heparin (UFH) in patients presenting with stable angina or silent ischemia (positive stress test without chest pain) that undergo percutaneous coronary intervention (PCI). The primary endpoint of the study will be major and minor bleeding events, defined by the REPLACE-2 trial definition, during the index hospitalization and up to 30 days post discharge.
Heart disease remains the most common cause of death in the UK. Chest pain is often the first presenting symptom in patients with heart disease, and may be a warning signal prior to a heart attack or death. The diagnosis based on symptoms alone however is unreliable and further testing is almost always necessary. Rapid access chest pain clinics (RACPCs) are able to expedite the assessment of such patients. The principal investigation used is an exercise stress electrocardiogram (s-ECG). Although simple, cheap, and convenient, the s-ECG is often inaccurate; missing the diagnosis or falsely suggesting the diagnosis. This can happen in as many as 25% of patients, resulting in a delay in treatment or unnecessary further investigation. CT Angiography (CTA) is a novel non-invasive technique where the coronary arteries can be visualised by Computerised Tomography. In previous studies it shows a high degree of correlation with invasive angiography, with a high accuracy for the diagnosis of obstructive coronary artery disease. However, the technique is relatively new, and its full role is yet to be defined in the clinical setting of a chest pain clinic. The investigators do not at present have any information as to whether it is able to speed up the diagnosis, reduce the need for other tests, and therefore also costs. In this trial, the investigators aim to examine the accuracy and cost effectiveness of CTA in patients with suspected cardiac chest pain presenting to a chest pain clinic, when compared to the more established techniques like s-ECG, myocardial perfusion scanning and coronary angiography. The study will enable us to establish the optimal and most cost effective strategy for investigation of patients presenting to chest pain clinics.
This is a comparison between Hypertonic versus isotonic solution in a double blind randomized trial for off pump Coronary Artery Bypass Graft (CABG) surgery targeting the left marginal branch. Hypertonic solution should provide better tolerance for heart mobilization with less volume expansion and less drugs.
The hypothesis is that problem based learning (PBL) in patient education positively affects self-care agency of lifestyle changes after an event of coronary heart disease (CHD). The investigators therefore aim to determine whether long-term follow-up in primary health care in patient education involving PBL affects self-care behaviour in terms of patients' beliefs, self-efficacy and empowerment to make lifestyle changes. The general aim is to evaluate if PBL in patient education after CHD affects long-term self-care in relation to present lifestyle goals. Another aim of the study is to perform an economic assessment of long term effects of life style changes reached by using PBL after en event of CHD.
The purpose of this study is to evaluate patency rates of the external Saphenous Vein Support (eSVS) Mesh Saphenous Vein Grafts (SVG) and Control SVG at 3-6 months and 24 months.
Attenuated plaque ≥ 5mm by intravascular ultrasound(IVUS) was reported to be high risk for distal embolism in Acute coronary syndrome(ACS). The purpose of this study is to assess the effect of thrombus aspiration catheter and distal protection device (filter wire; Filtrap™) in the aforementioned subgroup of patients at high risk for distal embolism.
Clopidogrel low response is associated with a significantly higher risk for ischemic complications after percutaneous coronary intervention. Ticagrelor and prasugrel are more potent platelet inhibitory drugs and both have been shown to significantly reduce ischemic events as compared to clopidogrel. No direct comparison between ticagrelor and prasugrel in terms of their antiplatelet efficacy exists. The aim of this study is to assess the antiplatelet treatment efficacy of ticagrelor versus prasugrel over time in confirmed clopidogrel low responders undergoing percutaneous coronary intervention.
Coagulopathy with transfusion requirements is frequent during cardiac surgery with cardiopulmonary Bypass. Rotational thromboelastrometry (ROTEM®) is a viscoelastic whole blood point of care test used to assess the patient's coagulation status. The purpose of this study is to evaluate the feasibility of ROTEM® analysis in the presence of very high heparin concentrations as seen during cardiopulmonary bypass.