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May 29, 1943


JAMA. 1943;122(5):332. doi:10.1001/jama.1943.02840220064027

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To the Editor:—  Caudal analgesia in obstetrics as advocated by Drs. Hingson and Edwards is the second great step for the amelioration and the alleviation of the pain and anguish of childbirth. The first was the introduction of chloroform to the practice of obstetrics.My limited experience with caudal block has been satisfactory thus far to the women and to me.There will, of course, be many improvements in the original technic. The principal purpose of the apparatus used and described by the originators was to maintain a closed aseptic circuit and for the maintenance of a constant analgesic affect during all of the labor after the first insertion of the needle into the caudal canal.I should like to describe a simpler closed circuit technic that can be used and watched over by personnel trained in obstetrics other than the attending obstetrician or anesthetist, the purpose being to make

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