Active clinical trials for "Aortic Valve Stenosis"

The objective of the REPRISE EDGE 29 mm EU study is to evaluate performance and safety of the 29 mm LOTUS Edge™ Valve System for transcatheter aortic valve replacement (TAVR) in symptomatic subjects with calcific, severe native aortic stenosis who are considered at extreme or high risk for surgical aortic valve replacement (SAVR).

To evaluate the efficacy and safety of embolic protection devices to reduce ischemic brain injury in patients undergoing surgical aortic valve replacement (AVR).

The Sentinel System will be a safe and effective method for capturing and removing embolic material (thrombus/debris) during transcatheter aortic valve replacement in order to reduce the ischemic burden in the cerebral anterior circulation.

The purpose of this study is to evaluate the safety and performance of the HLT System in patients with severe aortic stenosis who present at High Risk for aortic valve replacement surgery.

A multicentre cross-sectional cohort study to assess the difference in bioprosthetic micro-calcification activity, detected with 18F-NaF PET-CT, as early marker of transcatheter valve degeneration, between patients with vs. without subclinical leaflet thrombosis at five years after TAVI; and between patients with intra-annular vs. supra-annular TAVI prostheses.

Coronary artery blockages can reduce blood flow to the heart muscle. Fractional flow reserve (iFR or FFR) assessment is an invasive tool used to determine how much blood flow is reduced. The investigators will perform iFR/FFR on all intermediate coronary stenoses using standard practice, immediately before (at the time of) transcatheter aortic valve replacement (TAVR) and after successful TAVR. The investigators will compare pre- and post-TAVR iFR/FFR values, and assess short-term outcomes. The investigators hypothesize that iFR/FFR values will be consistently and significantly higher pre-TAVR in comparison with post-TAVR for the same lesions.

To collect information about the management of symptomatic severe Aortic Stenosis (AS) and Aortic Regurgitation (AR) using transcatheter aortic valve replacement (TAVI).

In order to overcome the shortcomings of the assessment questionnaires currently available on the assessment of overall quality of life, the "Toronto Aortic Stenosis Quality of Life Questionnaire" (TASQ) was developed as a specific assessment tool for the impact of severe aortic stenosis in elderly patients, through 16 questions covering 5 domains: symptoms and physical limitations, emotional impact and expectations following TAVI, as well as social limitations incurred. A better knowledge and understanding of the clinical outcomes and quality of life of elderly patients with severe symptomatic aortic stenosis at 12 months of follow-up of a TAVI procedure would further optimize the clinical decision-making process and patient selection who will benefit the most from this intervention in the long term.

The specific objectives and methods of this project are: (1) To test the feasibility and accuracy of integrating EEG, MECG and EMG for detecting the severity of diseases such as aortic stenosis, heart failure and ischemic stroke. (2) Improve the accuracy of this multi-channel brain-heart-muscle device by using an artificial intelligence auxiliary system. (3) Provide tailor-made interdisciplinary treatment strategies for patients with different disease states.

ATTR-cardiac amyloidosis (CA) is present in 4% to 16% of elderly patients with severe calcific aortic stenosis (AS). The reasons for this association are not fully known. It is hypothesized that an amyloidotic infiltration of the aortic valve acts as a trigger for the development of endothelial damage and subsequent calcification. Elderly patients undergoing TAVI will be evaluated for the presence of ATTR-CA in Jordan.