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Albert Starr, MD; Gary L. Grunkemeier, PhD

JAMA. 1984;251(13):1739-1742.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

USEFUL knowledge results from information collected in the past and synthesized, condensed, and organized to provide the best possible clue to future performance. Our purpose here is to arrive at that point by a review of the experience with heartvalve replacement during the last 30 years. Examination of data from current prostheses must be viewed from the perspective of experience, not expectations.

ORIGINS OF VALVE REPLACEMENT: THE 1950s

The earliest valvular substitute was Hufnagel's ball valve inserted into the descending aorta in 1952. With the introduction of cardiopulmonary bypass in 1953 came the possibility of complete replacement of cardiac valves in their anatomic position, and many laboratories and investigators devised replacement prostheses. Among the devices tried were artificial trileaflet valves made of pericardium, Teflon, Dacron, polyurethane, and Silastic; monocusp flap valves made of steel, polyester film (Mylar), or Silastic; and other configurations, including butterfly, sleeve, bicuspid, and quadricuspid made from . . . [Full Text PDF of this Article]

Author Affiliations
From the Division of Cardiopulmonary Surgery, Oregon Health Sciences University, and the St Vincent Hospital and Medical Center, Portland, Ore.

Footnotes
This article is one of a series sponsored by the American Heart Association.

Reprint requests to Division of Cardiopulmonary Surgery, Oregon Health Sciences University, 3181 SW Sam Jackson Park Rd, Portland, OR 97201 (Dr Starr).

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