View clinical trials related to Aortic Valve Stenosis.
Filter by:Evaluation of the safety and performance of the Navitor TAVI System in a Global Study
Aspirin group: Aspirin 100mg will be started within 24 hours after randomization, and continued aspirin 100mg/day the end of the study period. Non-antithrombotic group: No antithrombotic agents will be administered after randomization until the end of the study period.
Transcatheter aortic valve replacement (TAVR) represents an effective treatment to improve symptoms and prognosis in patients with symptomatic severe aortic stenosis (AS) (1-2). Giving an established uniform approach towards anticoagulation and antithrombotic therapy after TAVR in the post POPULAR-TAVI era, recent data coming from the analysis of different trials, highlight the relevance of the patient's background on the occurrence of ischemic and bleeding events. Despite this a targeted antithrombotic strategy remains unexplored and all patients undergoing TAVR without other indication to DAPT or OAC, were currently treated according with the concept of "less is more" (only SAPT or only OAC) regardless the risk level (5-6). The keys points of the project will be 1) the assessment of ischemic and bleeding risk after TAVR stratified according with antithrombotic therapy and surgical risk; 2) the evaluation of the impact of prostheses type and the complete blood count variables (hemoglobine and platelets) on the daily average ischemic and bleeding risk and 3) the evaluation of the dynamic therapeutic changes after TAVR during the follow up.
The purpose is to evaluate the safety, effectiveness and performance of Venus-Vitae Transcatheter Heart Valve System in patients with severe aortic stenosis.
Study is aimed to demonstrate that the self-expandable Allegra TAVI system provides lower mean gradient assessed by TTE compared to balloon-expandable valve systems in a female patient population with symptomatic severe aortic stenosis
Recent evidence from scientific literature supported the extension of TAVI procedures to lower risk populations. Despite its widespread usage, the expansion of TAVI into lower risk patient populations is still limited by complications and costs, with a large disparity between clinical trials and real-world scenarios suggesting still long hospitalizations after TAVI. This issue has got relevant implications in cost-effectiveness of the procedure, with many studies showing a more favourable cost profile associated with early discharges
This study is an observational study to evaluate the long-term safety and effectiveness of the valve system.
Background Transcatheter aortic valve replacement is a risky procedure, performed in patients that can also be considered at risk of developing complications. The use of HFNO could be justified in this context and could improve the results and safety of these procedures. The use of HFNO during sedation for TAVR could increase oxygen content and minimise hypercapnia, which occurs frequently. This may have 2 potential benefits: one in terms of facilitating the patient's tolerance to anaesthetic sedation; and the other to optimise oxygen delivery to organs such as the brain, kidneys, and myocardium. Primary aim The number of oxygen desaturation episodes. An oxygen desaturation episode is defined as any episode of Sp02 <93% for more than 10 seconds. Method A single-center prospective randomised controlled clinical trial with 132 individuals comparing the use of High Flow Nasal oxygen (intervention group) with the conventional standard of care oxygenation with nasal cannula standard oxygenation (control group) of patients undergoing sedation for transfemoral TAVR. The randomisation process will be carried out with a 1:1 assignment, using the RedCap Clínic tool for this purpose. Both groups will be treated at the same centre and by the same interventional cardiology and anaesthesia team. Sedation regime will be based on Target controlled infusion (TCI) with propofol and remifentanil. Local anaesthesia will be infiltrated by interventional cardiologist prior obtaining femoral vascular access. 50 L/min with 0.6% FiO2 will be administered through a high-flow nasal cannula in the intervention group. In the control group, oxygen therapy will also be administered in all cases, using the usual procedure: oxygen therapy through a conventional nasal cannula and at a flow of 5 L/min.
Hydra-IT is a multicenter observational study aim to collect clinical, procedural and follow-up data and evaluate the short, medium and long term results of Hydra TAVI System in patient with severe aortic stenosis.
The objective of ENVISION is to evaluate the safety and effectiveness of the Navitor Transcatheter Aortic Valve Implantation (TAVI) System for treating patients with symptomatic, severe native aortic stenosis who are considered intermediate or low risk for surgical mortality.