The Effects of Anæsthetics Modified by Altitudes.

M. H. Sears, M.D.
JAMA. 1891;XVI(9):322. doi:10.1001/jama.1891.02410610034017.
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To the Editor:  —The case which I desire to report caused much unfavorable comment in the community where it occurred, namely, one of the high mountain cities of Colorado—elevation 10,000 feet. Surgeons use chloroform at these extreme elevations almost exclusively. For some occult reason ether, or any of the anæsthetic mixtures do not act well, and are considered by common professional consent dangerous; not because they have frequently produced death, but because of the enormous quantity necessary to produce anæsthesia. For this reason chloroform, which causes complete insensibility very speedily, and in small quantity, is mostly used.On January 18 of the present year a man of 37 years of age was placed under the influence of chloroform for operation for organic urethral stricture in the spongy urethra. The stricture was of small calibre and the individual had had several attacks of retention following debauches. In the course of the


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