TAVR in Adults With Pure Severe Aortic Regurgitation

Inclusion Criteria

• •Age ≥ 60 years;
• •Patients with severe aortic regurgitation (\> grade 3) diagnosed by transthoracic echocardiography should meet any of the following conditions for semi-quantitative assessment of the degree of aortic regurgitation and any condition for quantitative assessment of the degree of aortic regurgitation: (1) semi-quantitative assessment of the degree of aortic regurgitation: aortic regurgitation bundle width/left ventricular outflow tract diameter ≥ 65%; or aortic regurgitation neck width \> 6 mm; or full-diastolic blood flow reflux in the proximal abdominal aorta; (2) quantitative assessment of the degree of aortic regurgitation: aortic regurgitation volume ≥ 60 ml/beat; or aortic regurgitation fraction ≥ 50%; or effective regurgitation orifice area ≥ 0.3 cm2
• •TAVR has been performed;
• •Patients can understand and voluntarily participate in this clinical study, sign informed consent, and adhere to clinical follow-up.