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RSI originated in the anesthesia literature to prevent aspiration in unprepped patients undergoing general anesthesia. From the first anecdotal reports of p-RSI in 1972, prehospital intubation has matured into widespread use. The often conflicting outcome data underscored the need to standardize the approach to p-RSI.
The first British psychosurgical operation was performed in Bristol in December 1940, and by the end of 1944 about 1,000 operations had been carried out in the United Kingdom. By 1954 that figure had risen to about 12,000 with use peaking in 1949.