Pulmonary Autograft -- The Optimal Substitute for the Aortic Valve?

With the development of surgical techniques to replace diseased aortic valves by Bahnson et al. 1 and independently by Hufnagel and Conrad, 2 a quest began for the ideal, permanent substitute for the aortic valve. Various mechanical valves have been developed, but all have characteristics that produ...

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