[What prevents the diagnosis of spasmphilia].

The frequency of spasmophilia in subjects who had had anaphylactic reactions during anaesthesia (80 p. 100 in our statistics, as opposed to 10 p. 100 in a normal population) must make one consider this condition as a risk factor. It must be looked for in the history, on clinical examination, on the electromyogram, and by laboratory assays. Therapeutic orientations are indicated.