Active clinical trials for "Coronary Artery Disease"

The primary objective of the study is to describe the cumulative proportion of participants who return to baseline platelet P2Y12 receptor function over time (up to 12 days post last maintenance dose) following discontinuation of prasugrel 10 mg daily x 7 days assessed by Accumetrics VerifyNow P2Y12 reaction units (PRU) and described by Kaplan Meier curves. The primary analysis is descriptive and is intended to provide information relating to the return of baseline platelet function following discontinuation of maintenance therapy with either prasugrel or clopidogrel.

BACKGROUND: Bifurcated lesions are a challenging subset in percutaneous coronary interventions (PCI). The selection of the type of DES and the technique for stent implantation have not been clarified. The side-branch (SB) is emerging as critical point, accounting for more than a third of the significant restenosis in the DES era. A series of data supports the adoption of a conservative strategy: stenting the main vessel (MV) only and reserving a conservative approach on the SB. Yet, the clinical relevance in terms of inducible ischemia of sub-optimal angiographic result has not been clarified. AIMS OF THE STUDY: The aims of the present study are: to compare in a prospective randomized study the acute 3D angiographic results and the late clinical outcome of Sirolimus-eluting (SES) vs Everolimus-eluting stent (EES) obtained using a provisional TAP-stenting technique. to prospectively assess the clinical relevance (inducible ischemia) of suboptimal angiographic result in the SB after stenting. METHODS TO BE APPLIED: 150 consecutive patients with bifurcated lesions undergoing PCI with the provisional TAP-stenting technique will be randomized to SES or EES implantation. Procedural and post-PCI details will be prospectively recorded. The subgroup of patients in which complete revascularization has been achieved will enter a systematic assessment of inducible ischemia by early and late exercise tests. Off line 3D QCA assessment will be performed and used to divide the study population in 2 groups according to the SB residual stenosis: Group O (optimal SB angiographic result): post-PCI SB area stenosis<50% Group S (sub-optimal SB angiographic result): post-PCI SB area stenosis>50%. PRIMARY STUDY END-POINTS. COMPARISON BETWEEN SES AND EES: SB acute angiographic result; SB trouble; target bifurcation failure. SB-RELATED ISCHAEMIA of Group O vs Group S in patients with complete revascularization: inducible ischemia at the early exercise test or occurrence of early spontaneous ischemia related to the SB.

The investigators hypothesize that patients with Acute ST Elevation Myocardial Infarction may benefit from primary angioplasty with use of a drug eluting balloon/bare metal stent combination without impairing the process of normal vascular healing and endothelial function. The goals of this study are: To compare 6-month angiographic outcome after primary angioplasty using drug eluting balloon/bare metal stent combination versus drug eluting stent versus bare metal stent. To compare stent apposition and stent endothelialization after primary angioplasty using drug eluting balloon/bare metal stent versus drug eluting stent versus bare metal stent. To compare coronary endothelial function after primary angioplasty using drug eluting balloon/bare metal stent versus drug eluting stent versus bare metal stent.

People with coronary artery disease (CAD) or people who have had a heart attack may develop a leak in the mitral valve of their heart and may therefore need to undergo surgery to fix the valve. The best way to fix the mitral valve remains undetermined. This study will evaluate whether it is better for people with severe mitral valve leakage to undergo a mitral valve replacement procedure or a mitral valve repair procedure.

Evaluate the proportion of hyperlipaemic persons with known coronary heart disease achieving ldl-c goal as defined by the national cholesterol education program (NCEP) adult treatment panel (ATP) III guidelines

The purpose of this study to determine whether the dual antiplatelet therapy (aspirin and clopidogrel) for 3 months after coronary implantation of zotarolimus-eluting stent is safe in terms of death, myocardial infarction, or stent thrombosis.

The purpose of this study is to investigate whether there is a difference in endothelial function, heart rate variability and carotid intimal media thickness in patients with coronary artery disease who are receiving fish oil therapy. One hundred patients with established coronary artery disease by coronary angiography will undergo randomization for enrollment in the study. Baseline evaluation will include assessment of brachial artery endothelial function, heart rate variability and carotid intimal media thickness. Evaluation of the endothelial function of the brachial artery will be elucidated by inflation of a blood pressure cuff around the arm for five minutes and measuring blood vessel dynamics after release of the cuff. Heart rate variability will be evaluated by 24 hour holter monitoring and analysis by standard protocol. Carotid intimal media thickness will be evaluated by ultrasound measurements guided by predetermined protocol. Patients will then be randomized to a highly purified fish oil, Omacor, 1 gram twice a day or placebo. Brachial artery ultrasound and holter monitoring will be repeated at 2 months. Carotid ultrasound will be repeated at the end of the study at 12 months.

This is a sixteen-week follow-on and 28 week single-blind extension study for patients who participated in study NK-104-304.

The purpose of this study is to compare different types of rehabilitation after coronary bypass surgery. The investigators wish to compare rehabilitation in an institution for four weeks with a home based rehabilitation. They also wish to compare rehabilitation in an institution for four weeks with a rehabilitation program were the patients live at home but visit the hospital twice a week for twelve week. The investigators will measure the patients' physical capacity by measuring their maximal oxygen consumption. The investigators will also analyze their blood and their endothelian function (how well their arteries dilate).

The purpose of this PMS registry, named e-CYPHER Stent Registry, is to collect post marketing surveillance data on the CYPHERTM Sirolimus-eluting Coronary Stent following marketing approval, when used in normal clinical practice within the labeled indications.