الفهرس 
Anatomy of aortic valveOnly 14 pages are availabe for public view
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Abstract
Aortic stenosis is becoming common entity; we face nowadays, for more oriented and physically active patients seeking for medical service to provide treatment with safest procedure and best long-term outcome. Surgical aortic valve replacement provides proved long-term outcome for aortic stenosis relieve; but it still has morbidities and mortalities especially in subgroup of patients with high-surgical risk that make physicians and patients took time to revise decision making in best option for that patients to relieve their left ventricular outflow obstruction. Since the introduction of transcatheter aortic valve implantation as a treatment option for patients with severe aortic stenosis, deciding on the optimal treatment strategy for high risk aortic valve replacement is challenging We designed our study to demonstrate whether transcatheter aortic valve implantation improves mortality and major cardiovascular and cerebrovascular adverse events compared with surgical aortic valve replacement in high-risk patients require intervention for aortic valve stenosis.