Transactions, American Society for Artificial Internal Organs: Volume III. Chicago, Illinois, April 14-15, 1957.

Edward E. Mason, M.D.
AMA Arch Intern Med. 1958;101(5):1012-1013. doi:10.1001/archinte.1958.00260170168024.
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Review of these transactions reveals that twelve new members of this society bring its roster to a total of ninety-two. Twenty-two papers are printed in brief. The majority of these are concerned with exchange of gases (CO2 and O2) and solutes, such as urea, uric acid, and electrolytes, between human or experimental animal blood and a dialysate which is either gas (for the pump oxygenator) or liquid (in the case of an artificial kidney). In principle and at least in one instrument described, there is little difference between an artificial heart-lung and an artificial kidney. The greatest current effort in further perfection of instruments seems to be concerned with the exchange between blood and gas. Much faster and complete exchange is required here, and, in addition, the problem of gas embolism still poses a challenge in the opinion of some. Although wetting agents allow defoaming of blood which


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