The incidence of pulmonary aspiration in a group of patients who did not respond to cardiopulmonary resuscitation (CPR) was assessed at autopsy and found to be 29%. This figure is undoubtedly an underestimate of the total problem, and some indication of the potential for aspiration during CPR is revealed by the fact that 46% of the patients studied had full stomaches at autopsy. Clearly this fact has implications for CPR methods as suggested by Cummings and Eisenberg. The problem could be reduced by incorporating the use of cricoid pressure into the techniques of Basic CPR but this will require modification of current teaching.
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