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April 1927


Arch Derm Syphilol. 1927;15(4):485-496. doi:10.1001/archderm.1927.02370280101008

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Demonstration of Cryocautery (Lortat-Jacob). By Dr. Howard Fox.  The use of the cryocautery devised by Dr. Lortat-Jacob of the St. Louis Hospital, Paris, was demonstrated. It was explained that the apparatus was not merely a device for collecting carbon dioxide snow. A little snow was first collected by attaching the instrument to any ordinary tank, acetone was added, and the cold was conducted to the removable applicator contained within the apparatus. There were eight of these applicators, of various sizes, one of them ending in a sharp point for use in treating pinhead lesions. The advantages of the apparatus lay in the rapidity with which it was made ready for use and the fact that the freezing could be better confined to a given area, without the undesirable spreading which took place with an ordinary pencil of carbon dioxide snow. The amount of pressure used was also indicated on the

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