What determines the type of aortic valve prosthesis in aortic stenosis (AS)?

Updated: May 07, 2019
  • Author: Xiushui (Mike) Ren, MD; Chief Editor: Terrence X O'Brien, MD, MS, FACC  more...
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The choice of prosthesis is determined by the anticipated longevity of the patient and his/her ability to tolerate anticoagulation. [30]

Stassano et al found that bioprosthetic aortic valves were significantly less durable than were mechanical valves. In a prospective, randomized study of 310 patients aged 55-70 years, follow-up at 13 years showed that valve failures and reoperations were more frequent in the bioprosthesis group than in the mechanical prosthesis group. However, there were no differences between the two types of valves regarding the rates of survival, thromboembolism, bleeding, endocarditis, and major adverse prosthesis-related events. [31]

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