Degeneration of the pulmonary autograft: an explant study.


OBJECTIVE We sought to determine the histologic features of pulmonary autografts explanted after the Ross operation. METHODS Histologic sections of 30 explanted autografts and 8 normal heart valves were compared and semiquantitatively scored by a blinded cardiovascular pathologist. RESULTS Pulmonary autografts (n = 30) were explanted on average 6.1… (More)


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