New heart valve study aims to improve survival in severe aortic stenosis

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Patients deemed eligible for TAVR by the treating physician, including those at high, intermediate, or low surgical risk, with a calculated Society of Thoracic Surgeons (STS) risk score; 2. Symptomatic patients with severe aortic stenosis, defined by echocardiography as having at least one of the following: * Mean transvalvular pressure gradient ≥40 mmHg (1 mmHg = 0.133 kPa), * Peak aortic jet velocity ≥4.0 m/s, * Aortic valve area \<1.0 cm², or Indexed effective orifice area \<0.6 cm²/m²; 3. Patients who understand the purpose of the trial, voluntarily agree to participate, provide written informed consent, and are willing to undergo required examinations and clinical follow-up. Exclusion Criteria: 1. Patients with a life expectancy of ≤1 year following prosthetic valve implantation; 2. Patients who have experienced an acute myocardial infarction or undergone any therapeutic cardiac surgery within the past month; 3. Patients with minimal or no calcification of the aortic annulus; 4. Patients with aortic root anatomy or pathology deemed unsuitable for prosthetic valve implantation; 5. Patients with multivalvular disease (severe stenosis and/or regurgitation); 6. Patients with hematologic cachexia, including leukopenia (WBC \<3×10⁹/L), acute anemia (Hb \<90 g/L), thrombocytopenia (PLT \<50×10⁹/L), bleeding diathesis, or coagulopathy; 7. Patients with untreated coronary artery disease requiring revascularization; 8. Patients with obstructive hypertrophic cardiomyopathy; 9. Patients with severe left ventricular dysfunction (LVEF \<20%); 10. Patients with severe right ventricular dysfunction; 11. Patients with intracardiac masses, fresh thrombi, or vegetations detected by echocardiography; 12. Patients unable to tolerate anticoagulant or antiplatelet therapy; 13. Patients who have experienced a cerebrovascular accident (CVA)-including ischemic or hemorrhagic stroke-within the past 3 months; 14. Patients with decompensated renal insufficiency; 15. Patients with active infective endocarditis or other active infections; 16. Patients with untreated conduction system disease requiring pacemaker implantation; 17. Patients who have participated in another drug or medical device clinical trial and have not yet reached the primary endpoint assessment timepoint; 18. Any other condition, as determined by the investigator, that renders the patient unsuitable for transcatheter aortic valve intervention.