Artificial heart valve testing in goats

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Abstract
The Björk–Shiley monostrut valve, with a modified surface, was implanted in mitral position in 72 goats. An unhurried technique of isolated sutures through the wafer-thin base of the completely excised mitral valve in the beating heart at normothermia gave consecutive longterm survival in the goats without anticoagulation—up to one year. From the first postoperative day the goats lived freely on a farm, and one gave birth to two kids 6 months after valve replacement. These tests have hitherto been successful, but further hemodynamic testing and studies of explants are necessary for decisions concerning the applicability of the modified Björk–Shiley monostrut valve.

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