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Results of aortic valve replacement with the Starr-Edwards and Björk-Shiley prostheses.

A study has been made of the last 50 patients subjected to aortic valve replacement with a Starr-Edwards or a Björk-Shiley prosthesis. The surgical mortality was 6%, the late mortality was 4%. Postoperatively the vast majority of the patients were symptom-free. Paravalvular leakage was believed to be present in two patients, both of them free from symptoms.