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To the Editor:—
The article by Ruesch and others in The Journal, April 2, page 1476, entitled "Continuing Hazard of Air Embolism During Pressure Transfusions," is an excellent discussion of this problem and ably presents an evaluation of the acceptable alternatives to the hazardous use of the air pump method. Unfortunately, in the comments concluding the article, the authors give an erroneous impression of the superiority of plastic bags. "Walters and co-workers [Surg. Gynec. & Obst., Sept., 1957, p. 365] and Strumia and colleagues [J. Lab. & Clin. Med., Aug., 1955, p. 225] stated that blood preserved in plastic bags shows less loss of platelets and longer red blood cell life than blood drawn in siliconized tubing and stored in siliconized bottles." Reference to the articles which are quoted in support of this statement reveals at once that both groups were comparing cell survival of blood collected in plastic bags
Alsever JB. PRESERVATION OF BLOOD IN PLASTIC BAGS. JAMA. 1960;173(6):712. doi:10.1001/jama.1960.03020240100029