[Results with the Ionescu-Shiley bioprosthesis].

During the period 1.1.1982-31.12.1987, 61 patients were submitted to operative introduction of the Ionescu-Shiley pericardial xenograft. The indications were anticipated brief survival or conditions which rendered anticoagulation therapy undesirable. Because of this, the operative lethality was high (12/61). No thromboembolic complications were observed during a period of observation of up to five years and no cases of primary destruction of valvular tissue.