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Air Pressure to Speed up Blood Transfusions

William P. Murphy, M.D.
JAMA. 1961;175(8):730. doi:10.1001/jama.1961.03040080086031.
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To the Editor:—  Dr. William S. Howland has commented in The Journal (Nov. 26, p. 1754) concerning an editorial (July 2, p. 1032), entitled "Use of Air Pressure to Speed up Blood Transfusion." I am writing to support his contention that the administration of blood under air pressure is not only a safe method when properly administered, but often a desirable one, particularly as a time saver. During the past 35 years I have given more than 3,000 transfusions of blood, largely in patients with diseases of the blood, using air pressure to administer 500 ml. of blood within 12 to 15 minutes. There have been no adverse reactions or fatalities as a result of the transfusions. In recent years I have also given bank blood from plastic bags using pressure on the bag in order to produce a similar result.It is stated in the editorial that a report


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