Pierach C A, Baur H R, Kiser J C
Chest. 1975 Apr;67(4):486-7. doi: 10.1378/chest.67.4.486.
A patient developed severe hemolytic anemia one year after insertion of a cloth-covered aortic valve prosthesis (Starr-Edwards No. 2320). The cloth over the three struts was disrupted but showed coverage with mostly organized collagen. Hemolysis stopped after replacement with a porcine heterograft. Fabric wear seems to augment the hemolysis in patients with cloth-covered artificial valves.