View clinical trials related to Aortic Valve Stenosis.
Filter by:In this study, the investigators aim to compare cerebral embolic load in patients undergoing surgical aortic valve replacement using either the minimized extracorporeal circulation or the conventional extracorporeal circulation technique. The detection of cerebral emboli is performed not-invasively by transcranial Doppler detection of high-intensity transient signals representing solid or gaseous microembolism in the middle cerebral arteries. The investigators hope to get more insight in the mechanism (incl. quantity) of cerebral embolism during aortic valve surgery using extracorporeal circulation.
The purpose of this study is to evaluate the clinical outcomes of transcatheter aortic valve replacement (TAVR) in the Asian Pacific population
Post-market registry aimed at further evaluating the safety and performance of the ACURATE neo™ Aortic Bioprosthesis and ACURATE TF™ Transfemoral Delivery System in patients with severe aortic stenosis treated with the commercialized device
The purpose of this registry is to document the everyday practice in our centers with minimal invasive treatment of patients with aortic valve disease who were considered suitable for transfemoral aortic valve implantation by heart team.
The primary objective of this study is to determine the efficacy, safety and feasibility of next day discharge home in patients undergoing balloon-expandable transfemoral TAVR utilizing the Vancouver 3M Clinical Pathway in low, medium, and high volume North American centres.
Background: - Some people who need a transcatheter aortic valve replacement (TAVR) have leg arteries that are too small and are too sick for standard techniques. But they may benefit from a new technique called transcaval TAVR. For this technique, doctors make a hole between the largest vein (vena cava) and largest artery (aorta) in the body, inside the abdomen. Then they replace the valve through a tube they put in the groin vein. Then they close the hole between the vein and the artery using a device designed to close holes in the heart. This study tests the device for this new, off-label use. Objective: - To further study the safety and effectiveness of transcaval TAVR. Eligibility: - Adults age 21 and older who would benefit from TAVR but for whom standard techniques are not suitable. Design: - Participants will be selected by a team of heart specialists and others. - Participants will have a computed tomography (CT) scan with or without contrast dye. - Participants will have blood tests. - Participants will have transcaval TAVR. - Participants will receive the same standard care as for all patients with TAVR. - Participants will also have another CT scan, or an MRI or ultrasound, before they leave the hospital, and again after about 30 days and after about 12 months. - Participants will be contacted 1 and 6 months afterwards and will have another visit 1 year later. They will have a CT, MRI, or ultrasound. They will have blood tests and a physical exam.
This is a single-center, open-label, randomized controlled trial. Patients scheduled for aortic valve replacement (AVR) at Karolinska University Hospital in Stockholm, Sweden will be eligible. One-hundred patients will be randomly assigned to either partial upper sternotomy (50 patients) or full sternotomy AVR (50 patients). Inclusion criteria is severe aortic stenosis referred for medically indicated isolated aortic valve replacement. Exclusion criteria are inclusion in other trial, left ventricular ejection fraction less than 0.45, previous cardiac surgery, or urgent/emergent surgery. Mechanical and bioprosthetic (stented or sutureless) aortic valves will be implanted. Clinical characteristics will be registered. Clinical postoperative outcomes including bleeding outcomes will be registered. Routine blood sampling will be performed pre- and postoperatively. All available data will be collected prospectively. Informed consent will be obtained from patients meeting the inclusion criteria before the initiation of any study-specific procedures.
The SENTINEL Post-Market Registry is a prospective, multi-center, registry using the CE-Marked Sentinel System in subjects with severe symptomatic calcified native aortic valve stenosis indicated for TAVR. Subjects enrolled in the registry will undergo TAVR + Sentinel. Basic demographic information and detailed procedural data will be captured and documented in a registry case report form. All Sentinel filters will be sent for histopathology at an independent core-lab.
First-in-Human clinical investigation to evaluate the safety and clinical performance of the BIOVALVE prosthesis in subjects presenting with severe symptomatic aortic valve stenosis, which are as judged by the heart team, indicated for transfemoral transcatheter aortic valve implantation
The purpose of this study is to narrow the gap between patients being diagnosed with severe aortic stenosis and those being appropriately monitored and treated. For this purpose a prospective survey of current practice (3 months) will be conducted followed by a six month period of intervention during which a variety of quality improvements measures will be implemented. There will then be a 3 month follow-up period during which the legacy of this initiative will be monitored during which no intervention will be carried out.