It has now been twelve years since Lucas and Henderson1 of Toronto introduced cyclopropane to the medical profession and seven years since the first clinical report by Stiles, Neff, Rovenstine and Waters.2 In 1939 the Council on Pharmacy and Chemistry of the American Medical Association reviewed the work that had been done up to that time with cyclopropane in anesthesia and concluded that this agent was of value in the hands of competent anesthetists. The Council suggested, however, that more reports of anesthesias carried out with cyclopropane would be necessary before the proper place which cyclopropane might have in anesthesia could be accurately determined. Our purpose in this paper is to present a review of 7,120 cases in which cyclopropane has been used at the Rochester Hospital during the years 1935-1940 inclusive.
Table 1 shows the rate of increase in the use of cyclopropane at our hospital, by
SAHLER SL, KELLOGG JF, PHILLIPS RB. CYCLOPROPANE ANESTHESIA AT THE ROCHESTER GENERAL HOSPITALREVIEW OF 7,120 CASES. JAMA. 1942;118(13):1042–1045. doi:10.1001/jama.1942.02830130016006