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Article
February 24, 1917

BLOOD PRESSURE CHANGES INDUCED BY HOT AND COLD APPLICATIONS ON AND WITHIN THE ABDOMEN

Author Affiliations

LOS ANGELES

JAMA. 1917;LXVIII(8):621-622. doi:10.1001/jama.1917.04270020285012
Abstract

In view of the fact that many surgeons are using hot and cold packs for one reason or another, on and within the abdomen either before, during or after abdominal operations, it seemed advisable to determine the effect of these agents on the organism. As changes in blood pressure are conveniently recorded, and as at the same time these changes are an important index of the condition of the patient, we have determined the changes in blood pressure produced by the application of either heat or cold on or within the abdomen.

We obtained the results herein reported when using cats as the subjects of the experimental study. The animals were anesthetized with ether. Records were made of thees in blood pressure by connecting the carotid artery through a cannula with a mercury manometer so arranged as to trace the pressure variations on a smoked paper attached to a slow

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