The Zero Pressure Fixed Medtronic Intact Porcine Valve: Clinical Results Over a 6‐Year Period, Including Serial Echocardiographic Assessment

Between 1983 and 1990, 219 patients had 224 Medtronic Intact porcine valves inserted. There were 94 aortic, 110 mitral, and 20 tricuspid valve replacements. The mean patient age was 52 years. Mean follow‐up was 33.3 months and was 97.7% complete. There was only one example of structural valve degene...

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