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To the Editor:
—In The Journal, March 22, an article by G. Brown (M. J. Australia1:53 [Jan. 19] 1924) on blood pressure during anesthesia is thus abstracted:If during an operation the systolic blood pressure falls to 80 mm. or less, and the pulse pressure to 20 mm. or less, with a pulse rate of 100, Brown terminates the operation as quickly as possible and restorative measures are employed. If this circulatory depression continues for more than twenty minutes, the patient will probably die within three days. Whenever possible the anesthetist should examine the patient fully a day or two before the operation.This is simply the rule formulated and propounded by E. I. McKesson of Toledo several years ago, slightly modified. McKesson first worked out the relation of blood pressure to operative procedure and to shock, over a period of years and in a large series of
Long WH. BLOOD PRESSURE IN ANESTHESIA. JAMA. 1924;82(15):1217. doi:10.1001/jama.1924.02650410059035
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