Active clinical trials for "Aortic Valve Stenosis"

Transcatheter aortic valve replacement TAVR is become the reference method for patients with severe aortic stenosis who are contraindicated or at risk for surgical aortic replacement. Initially performed under general anesthesia (GA), recent developpement of minimalist approach of TAVR include the use of local anesthesia (LA) with or without conscious sedation (CS) associated with full percutaneous access and no routine transoesophageal echocardiography (T0E). The aim is to simplify the procedure and to allow fast recovery of patients with early discharge and reduced cost. Evidence guiding the decision of whether to perform TAVR under GA or LA-CS is limited to non-randomized trials and registry data Current evidence is however limited by probable patient selection bias, methodological variability between studies, various methods of anesthesia and a lack of agreement regarding appropriate clinical end-points. The potential benefits of TAVR with LA include reduced procedure time, shorter intensive care unit (ICU) length of stay, reduced need for intraprocedural vasopressor support, and the potential to perform the procedure without the direct presence of an anesthetist for cost-saving reasons. As LA with CS is preferred with good results in main centers, GA may be useful to facilitate intraprocedural TOE which is necessary in case of intraprocedural complications and may facilitate the procedure for the physician particularly when the patient is anxious or disturbed. A resulted better concentration without precipitation may influence the outcomes in term of valve positioning. The patient comfort could also be better during femoral puncture or rapid pacing. The aim of the study is to compare transfemoral TAVR under general anesthesia (experimental group) versus local anaesthesia with sedation (control group) with a safety primary combined end point of adverse events at 72 h follow-up (hemodynamic parameters and VARC 3 criteria). Secondary end points include hospitalization length, satisfaction of the patients and operators and 30 days mortality. The hypothesis is a non inferoirity of the GA staregy regarding the primary end point.

The primary objective of this study (LANDMARK) is to compare the safety and effectiveness of the Myval THV Series with Contemporary Valves (Sapien THV Series and Evolut THV Series) in patients with severe symptomatic native aortic valve stenosis. This study will be done in total 768 subjects (384:384, Myval THV Series vs. Contemporary Valves) The randomisation will be carried out with an allocation ratio of 1:1 between Myval THV Series vs. Contemporary Valves (Sapien THV Series and Evolut THV Series)

The goal of this prospective, multicenter, investigator-initiated, randomized clinical trial is to assess the safety and efficacy of a 'minimally invasive, upper extremity' approach versus the standard 'lower extremity' approach for accessory access sites in patients undergoing a transcatheter aortic valve implantation. The main questions it aims to answer are whether a 'minimally invasive, upper extremity' approach as compared with the standard 'lower extremity' approach: Is associated with less clinically relevant access site-related bleeding complications. Is associated with a shorter time to mobilization after TAVI. Is associated with a shorter duration of hospitalization. Has the same early safety outcomes at 30 days post-TAVI. Participants will be subject to the usual care surrounding a TAVI procedure but will also will be asked to fill out two questionnaires before and after TAVI: Quick Disabilities of the Arm, Shoulder and Hand (Quick DASH) Lower Extremity Functional Scale (LEFS) Researchers will compare the minimally invasive, upper extremity group with the standard lower extremity to see if there are difference regarding the posed questions.

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

The ACCESS-TAVI trial is an investigator-initiated, prospective, randomized, multicenter, open-label clinical trial. The objective of the trial is to compare two different vascular closure device strategies for large bore vascular access following transfemoral transcatheter aortic valve implantation with regard to safety and efficacy.

This study will assess the safety and effectiveness of the SAPIEN 3/SAPIEN 3 Ultra transcatheter heart valve (THV) in patients with a failing aortic bioprosthetic valve.

The objective of the PORTICO pivotal IDE trial is to evaluate the safety and effectiveness of the St Jude Medical (SJM) Portico Transcatheter Heart Valve and Delivery Systems (Portico) in the treatment of severe symptomatic aortic stenosis via transfemoral and alternative delivery methods in high risk and extreme risk patients.

In this study the investigators will assess a variety of novel markers of heart strength (contractility) and assess whether they can give a clearer indication of how well patients with weak hearts respond to the TAVI procedure. The investigators will perform a stress echocardiogram prior to each TAVI procedure and measure the global longitudinal strain (GLS) in the left ventricle (LV) heart muscle, a detailed marker of muscle strength. The investigators will then proceed to the TAVI procedure and measure the contractility of the main pumping chamber in the heart before and after giving a very low dose of an adrenaline -like drug (dobutamine). The patient will already have received this short acting drug (at the same and higher doses) during their routine care planning stress echocardiogram.

Combining routine preoperative CT imaging with patient-specific computer modelling predicts the interaction between different sizes of transcatheter aortic valve replacement devices at different implantation depths and the patient's unique anatomy (including post-implantation deformation) allowing preoperative evaluation of the risk for paravalvular leakage and conduction disorders. The objective of this randomized controlled trial is to evaluate whether pre-operative CT-imaging with advanced computer modelling and simulation (FEops HEARTguide™) adequately predicts procedural outcomes in TAVR procedures, whether it leads to changes of preoperative decisions and whether or not this leads to improved outcome in TAVR procedures.

To compare down sizing strategy versus annular sizing strategy technique (control group) in Type 0 bicuspid aortic stenosis (AS) patients undergoing transcatheter aortic valve replacement (TAVR) with self-expanding valves (SEVs): a randomized superiority trial