Clinical results of pericardial xenograft valves: the Ionescu-Shiley and Hancock valves.


Between 1979 and 1985, 552 Ionescu-Shiley valves were implanted in 511 patients. The Hancock valve was implanted in 122 patients (129 valves) between 1982 and 1983. Sixty percent of procedures were isolated aortic valve replacements. In the Ionescu series, 59% of these were 19 or 21 mm valves while only 15% of the Hancock valves were of this size. For… (More)


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