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ARTICLE |

Experiences with Ivalon (Polyvinyl Formalinized) Sponge Prostheses for Vascular Replacements

WILLIAM B. AYERS, M.D.; JOHN J. CINCOTTI, M.D.; MARVIN L. GLIEDMAN, M.D.
AMA Arch Surg. 1957;74(2):173-182. doi:10.1001/archsurg.1957.01280080023002.
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Until approximately one year ago, we had been fairly well satisfied with lyophilized homografts for use in vascular replacements for central artery defects. However, because of involved difficulties in procurement of homografts in our area (particularly regarding distal arteries) plus the failure on occasion of venous autografts,1 the late suture line disruption in some homografts in our own and others' experience * and occasional aneurysm formation in homografts reported by others,2 we undertook a search for other and more ideal prostheses where the problem of supply would not be ever-present.

Our present solution to the problem is Ivalon (polyvinyl formalinized) sponge, as described by Shumway and his associates.9 This sponge is strong, resilient, elastic when wet, and, when washed free of chemical contaminants, inert in tissue.4,9 Ingrowth of fibrous tissues and capillaries into implanted sponge occurs in a regular "noninflammatory" fashion so that there is no true

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