View clinical trials related to Coronary Artery Disease.
Filter by:Coronary Computed Tomography Angiography (CCTA) contrast opacification gradients and FFR-CT estimation can aid in the severity estimation of significant atherosclerotic lesions. Currently, FFR-CT algorithms can only be optimized using theoretical models and can only be validated in large multi-center clinical trials. Using patient specific 3D printed coronary phantoms would allow optimization of FFR-CT algorithms with a measured validation technique without the need for large clinical trials. Thus the investigators believe that this study will result in a FFR-CT algorithm/method with a better predictability for arterial lesion severity than those existing on the market today. Flow measurements will be compared with: CT-FFR for both patients and phantoms, angio lab FFR measurements and 30 days follow-up. This pilot clinical study includes ~50 patients over a year and half at GVI.
The OPTIENOX-PCI is a single-center, prospective, randomized, open-label, controlled study, which is designed to assess the anticoagulation profile of: 1) High-dose (0.75 mg/kg) vs. Standard-dose (0.5 mg/kg) enoxaparin; 2) Staged-dose (0.5+0.25 mg/kg) vs. Single-dose (0.75 mg/kg) enoxaparin in about 376 patients who plan to undergo elective trans-radial coronary angiography (CAG) with or without subsequent percutaneous coronary intervention (PCI).
This study will examine whether pre-operative, non-invasive arterial stiffness measurements can be used to predict which patients will develop an aortic-to-radial pressure gradient after coronary artery bypass graft (CABG) surgery. A previous small study by Kanazawa, et al. demonstrated in patients who developed an aortic-to-radial pressure gradient after CABG surgery, the pulse wave velocity (PWV) was higher in the aorta and decreased when moving toward the radial artery. In the patients who did not develop a pressure gradient, the PWV started lower in the aorta and increased when moving towards the periphery. The purpose of this investigation is to examine whether pre-operative PWV measurements can be used to identify patients who will develop an aortic to radial pressure gradient after CABG surgery. Applanation tonometry will be performed on the right carotid and femoral arteries to assess carotid-femoral pulse wave velocity, a surrogate for aortic stiffness. (SphygmoCor system, AtCor Medical, Sydney, Australia). The measurement will be obtained before induction of general anesthesia in the presurgical area. Also in the presurgical area, a non-invasive cardiac output (CO) measurement will be obtained by using the ICON Device (Osypka Medical, La Jolla, California). This CO value will be used to compare to the CO values obtained invasively in the operating room.
The investigators want to assess the use of the residual SYNTAX score and the SYNTAX Revascularization Index as predictors for in-hospital outcomes and mid-term (6 months to 1 year) outcomes in patients with multi-vessel disease (MVD) who undergo PCI in the setting of STEMI or NSTEACS. Both values will be calculated in a number of patients over one year, and the relationship between both values and patient outcomes will be evaluated.
Main aim of the COMBAT-CAD-Study is to clarify, if the combination of stress testing with biomarkers improves the diagnostic accuracy. Hypothesis of our study is that diagnosis of CAD can be improved by adding biomarkers to solely stress testing for the workup of patients with suspected CAD or progress of already known CAD.
The primary objective of the trial is to compare, in patients presenting with ST segment elevation myocardial infarction (STEMI) and multi-vessel disease (MVD), the safety and efficacy of immediate complete revascularization of all significant coronary lesions versus culprit vessel only revascularization and staged percutaneous coronary intervention (PCI) of all significant coronary lesions (within 19 to 45 days), in a non-inferiority trial using a third generation, biodegradable-polymer, everolimus-eluting stent.
The primary aim of this study is to examine if long-term patterns of alcohol consumption are associated with time-to-onset for incident coronary heart disease (fatal and non-fatal), using data from multiple cohorts.
The TUXEDO-India is a prospective, single blind, multi-center randomized clinical trial to assess the TAXUS Element™ in a consecutive population of diabetic patients with coronary artery disease undergoing coronary revascularization. Approximately 1,830 patients with single or multi lesion, multi vessel coronary artery or saphenous vein graft disease ranging in vessels ranging from 2.25 mm to 4.0 mm in diameter by visual estimate will be enrolled in a 1:1 randomization to TAXUS Element™ vs. XIENCE™ Prime in India at up to 50 clinical sites, to demonstrate the safety and effectiveness of TAXUS Element™ in an unrestricted population. Procedural Endpoints: - Device success, defined as attainment of < 30% residual stenosis of the target lesion (visual assessment) using the TAXUS Element™ or XIENCE™ Prime stent. - Lesion success defined as attainment of < 30% residual stenosis (visual assessment) using any percutaneous method. - Procedure success defined as lesion success without the occurrence of in-hospital MACE. - Procedure complication rate including composite and individual angiographic occurrence of dissection ≥B, distal embolization, no reflow, slow flow, abrupt closure, or perforation.
To evaluate the clinical safety and efficacy in Chinese subjects, eligible for percutaneous transluminal coronary angioplasty (PTCA) in lesions amenable to treatment with a 34/38 mm Medtronic Resolute Integrity™ Zotarolimus-Eluting Coronary Stent System.
The purpose of this study is to predict any changes in the side branch after stenting the main branch blood vessel using three dimensional intravascular images. (Frequency domain optical coherence tomography FD OCT). Optical coherence tomography (OCT) is an established medical imaging technique that uses light to capture high-resolution, three-dimensional images of blood vessels. These images will be used before and after implanting the stent in the main blood vessel. Fractional Flow Reserve (FFR) test, which makes it possible for the interventional cardiologist to calculate blood flow across an area of a coronary artery, will be done after stenting and will help to determine if there are any changes in the side branch blood flow.