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February 3, 1969, Vol 207, No. 5 >
ARTICLE | February 3, 1969

Japanese Language Barrier to Communication

Lester C. Mark, MD
JAMA. 1969;207(5):954. doi:10.1001/jama.1969.03150180084033.
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ABSTRACT

To the Editor: —  An item titled "Promising Results Obtained With New Cardiac Valve," in the MEDICAL NEWS section (205: Sept 16, 1968, adv p 34) describes an artificial heart valve developed by Drs. W. S. Pierce, D. M. Behrendt, and Andrew G. Morrow at the National Heart Institute, Bethesda, Md. The valve is described and pictured as a stainless steel disk pivoting to an opening of up to 75 degrees on an eccentric hinge set in an annular valve body, the whole resembling a "butterfly valve" in an automobile carburetor.This design, while ingenious, is not unique: Priority of invention must be assigned to Juro Wada, MD, professor of surgery and chairman of the Department of Thoracic and Cardiovascular Surgery at Sapporo Medical College and Hospital ("Idai") in Japan. I was privileged to see the Wada "hingeless hinge" valve at first hand last year at Idai in the Department

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