View clinical trials related to Aortic Stenosis.
Filter by:The objective of this study is to confirm the safety and effectiveness of the Lotus™ Valve System in the Japanese medical environment for transcatheter aortic valve replacement (TAVR) in symptomatic subjects with calcific, severe native aortic stenosis who are considered at high or extreme risk for surgical valve replacement.
The central hypothesis of this study is that TAVR leads to platelet deposition and inflammatory cell activation that can be attenuated by the potent anti-platelet and/or pleiotropic effects of ticagrelor. This single center, prospective randomized trial addresses the following specific aims: 1. To determine whether high-potency ADP receptor blockade reduces measures of platelet activation in patients after TAVR. 2. To determine whether high-potency ADP receptor blockade mitigates the pro-thrombotic inflammatory response observed after TAVR.
Whether to intervene in asymptomatic patients with severe aortic stenosis and normal left ventricular ejection fraction remains controversial. The investigators therefore try to compare clinical outcomes of elective aortic valve replacement to conventional treatment and watchful waiting strategy in a prospective randomized trial.
The hypothesis behind this study is that there is a proportion of patients considered high or intermediate risk for surgery, but relatively low risk for TAVI, which can be discharged early after the procedure (within the first 2-3 days) without additional risks. Therefore, when performed in safety, an early discharge may cut periprocedural TAVI costs significantly.
The objective of the study is to evaluate the efficacy of Erythropoietin (EPO) (+ iron) in reducing the rate of red blood cell transfusion requirements in patients with aortic stenosis undergoing transcatheter aortic valve replacement.
To evaluate the efficacy and safety of embolic protection devices to reduce ischemic brain injury in patients undergoing surgical aortic valve replacement (AVR).
The purpose of this active post-market surveillance study is to confirm the safety and effectiveness of the EDWARDS INTUITY Valve System in the study population. The objective is to evaluate cardiac performance characteristics and adverse events rates associated with the EDWARDS INTUITY Valve in patients undergoing AVR. The AVR surgical approach is either full or partial sternotomy or a right anterior thoracotomy.
To confirm the acute performance and safety of the Lotus™ Valve with the Next Generation Delivery System for transcatheter aortic valve replacement (TAVR) in symptomatic patients with severe calcific aortic stenosis who are considered high risk for surgical valve replacement.
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 study objectives are to assess the safety and efficacy of the CoreValve Evolut R transcatheter aortic valve replacement (TAVR) system in patients with severe symptomatic aortic stenosis are considered at high or extreme risk for surgical aortic valve replacement.