Suture-less aortic valve replacement

Aortic valve replacement remains challenging in patients with small and calcified aortic root, left ventricular dysfunction, advanced age and multiple co-morbidities. conventional stented bio-prostheses avoid need for prolonged anticoagulation but leave unacceptably high residual aortic root gradients because of their structure and profile. development of stent-less bio-prostheses was successful in reducing residual gradients across the aortic root but their use is limited because of complicated implantation techniques and need for prolonged cardiopulmonary bypass.