View clinical trials related to Coronary Disease.
Filter by:Impact of intraventricular electrical activation in resynchronization therapy. We seek to evaluate the impact of Cardiac Resynchronization Therapy (CRT) on electrical activation of the Left Ventricle (LV). The first goal of the study is to evaluate if CRT is able to decrease the heterogeneity of LV activation in heart failure patients. A second goal is to evaluate the electrical determinant of clinical response to CRT using invasive and non-invasive mapping technology.
BBK- 2 - study: STUDY-SUMMARY Background: The need for stenting of the main and side branch (double stenting) in the treatment of coronary bifurcation lesion primarily depends on the complexity of the bifurcation lesion. If the bifurcation lesion is very complex (Medina classification 111, severe stenosis of both branches, severe calcified lesion, long lesions etc.) double stenting may be the treatment of choice. When double stenting is required, the most frequently used stenting techniques are T-stenting and Culotte-stenting. It is still unclear, however, which double stent technique yields the best long-term outcome. Aim: This randomized study will compare the long-term safety and efficacy of T-stenting versus Culotte-stenting in the treatment of de-novo coronary bifurcation lesions with drug-eluting stents. Methods: Three-hundred patients in whom a double-stenting technique is intended for the treatment of a de-novo coronary bifurcation lesion will be randomly assigned to T-stenting or Culotte-stenting with an approved drug-eluting stent. Patients will undergo 9-month angiographic follow-up with quantitative coronary angiography. Clinical follow-up is planed at 30 days, 6 months, 1 year, 2 years, 3 years and 5 years. The primary study endpoint is the maximal percent diameter stenosis in the bifurcation lesion at 9 months. Secondary endpoints include binary restenosis (estimated by Quantitative Coronary Angiography (QCA) analysis), Target Lesion Revascularisation (TLR), Freedom from Major Adverse Cardiac Events (MACE) and the rate of stent thrombosis according to the definition of the Academic Research Consortium (ARC definition). The study will have 90% power to detect a 25% reduction in the primary endpoint at p < 0.05.
To evaluate the safety of a new bioresorbable (non-permanent) stent platform in native coronary arteries.
This study is being conducted to determine if smoking will influence the platelet aggregation inhibition ability of clopidogrel and prasugrel. It will also determine if smoking has any effect on the plasma concentrations of the active metabolite of prasugrel and the active and inactive metabolites of clopidogrel. The primary hypothesis is that smoking status will influence the antiplatelet effects and active metabolite concentrations of clopidogrel but will have no impact on prasugrel's antiplatelet effects or active metabolite concentrations.
Each year in the United States, 300,000 people suffer from a Cardiac Arrest (CA), and of them, there is a 90% mortality rate. Out-of-Hospital arrests, in particular, have a 1-5% survival to hospital discharge. High quality CPR is crucial to lowering the mortality rate and increasing survival, yet only 15-30% of out-of-hospital CA victims receive bystander CPR. Studies have shown that prompt administration of CPR dramatically improves outcomes. In a recent study from Switzerland, lay bystander CPR doubled the survival rate at one month. Our study will look to train family members of at-risk cardiac patients in the skills of CPR through the American Heart Association's (AHA) CPR Anytime Friends and Family Personal Learning Program (CPR Anytime) to see if these family members are able to learn and perform quality CPR in the event that their family member should suffer a cardiac arrest.
Biventricular pacing is a validated treatment for patients suffering from heart failure resistant to medical treatment. However, up to 30% of the patients are non responsive to this strategy using the coronary sinus approach to pace the Left Ventricle (LV). It has been demonstrated that the magnitude of the improvement was highly dependant on the LV pacing site. The coronary sinus approach rarely offers more than 1 or 2 potential pacing sites. Resynchronisation using a transeptal approach to pace the left ventricle on the cardiology has been shown feasible on small series. We therefore would like to compare these two approached in a randomised prospective study to confirm the hypotheses that endocardial LV pacing by offering multiple choices for the pacing sites reduces the number of non responders and is associated with greater hemodynamic benefit when compared to the conventional coronary sinus approach.
The purpose of this study is to demonstrate the (statistical) non-inferiority of iobitridol (Xenetix® 350) when compared to contrast agents with higher iodine concentrations, iopromide (Ultravist® 370) and iomeprol (Iomeron® 400) in terms of coronary CT scan evaluability (quality and interpretability of images).
To perform a randomized comparison between the Cypher Select+ stent and the Nobori stent in the treatment of unselected patients with ischaemic heart disease.
The purpose of the e-BioMatrix PMS registry is to capture clinical data of the BioMatrix (Biolimus A9-Eluting) stent system in relation to safety and effectiveness.
Each year in the United States, 300,000 people suffer from Cardiac Arrest (CA), and of them there is a 90% mortality rate. Out-of-Hospital arrests in particular have a 1-5% survival to hospital discharge. High quality CPR is crucial to lowering the mortality rate and increasing survival, yet only 15-30% of out-of-hospital CA victims receive bystander CPR. Studies have shown that prompt administration of CPR dramatically improves outcomes. In a recent study from Switzerland, lay bystander CPR doubled the survival rate at one month. Our study will look to train family members of at-risk cardiac patients in the skills of CPR through the American Heart Associations (AHA) CPR Anytime Friends and Family Personal Learning Program (CPR Anytime) to see if these family members are able to learn and perform quality CPR in the event that their family member should suffer a cardiac arrest. The unique feature of the CPR Anytime training is that it is a low-cost, self-learning, video-based program that can be completed in under 30 minutes, saving the time and expense of traditional CPR training courses. While initial work has proven that teaching CPR in hospital using the VSI kit is feasible, little research has been conducted to make the program sustainable.