. Les maladies de l'enfance : services médicaux et chirurgicaux. clesof le corps aie dans un l'irritabilité, surtout thoseof le visage. Il s'agit d'evidencedby la disponibilité avec whichthey Durée du contrat lorsque l'facialnerve est irrité. Si le fingerbe theangle plus intelligemment transmis de la bouche, un sharpcontraction de la levator fol-bas ; ou le doigt est brushedacross theorbit la face externe des, et une contraction des theorbicularis s'ensuit. Thisfacialphenomenon notpeculiar est, cependant, dans la tétanie.^ La même condition de muscles irritable peuvent sometimesbe démontrée par la compression du nerf grand trunks o

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. The diseases of children : medical and surgical. clesof the body aie in a conditionof irritability, especially thoseof the face. This is evidencedby the readiness with whichthey contract when the facialnerve is irritated. If the fingerbe passed smartly over theangle of the mouth, a sharpcontraction of the levator fol-lows ; or the finger is brushedacross the outer side of theorbit, and a contraction of theorbicularis ensues. Thisfacialphenomenon, however, is notpeculiar in tetany.^ The same irritable condition of muscles can sometimesbe demonstrated by compression of the large nerve trunks of the arm, whichmay give rise to muscular spasm in the hands and fingers. This is sometimesreferred to as Trousseaus phenomenon. Tetany never threatens life per se, as it only affects the muscles of externalrelation, though the child may die from the effects of the gastro-enteritis, of which the muscle cramps are only symptoms. The only case which 1 J. Loos, M.D., Wiener klin. IVochenschr.No. 49, 1891 ; Laryngismus, Dr. W.Gay, Brain, January 1890.. Fig. 114.--Tetany of the hands and feet (from aphotograph by Dr. L. W. Crowe). Tetany—Nystagmus 539 terminated fatally, which we have seen, was the case, referred to above, ofa boy aged six years, who died in a few days from the effects of a gastro-enteritis ; the principal symptoms were constant vomiting, cramps in thestomach, and tetany of both upper and lower extremities. Te. posf-moriefnshowed the brain and cord to be normal to the naked eye ; the mucousmembranes, of the stomach and intestines were injected, and evidently in astate of acute catarrh. In another case, somewhat similar, Hadden couldfind no changes in the cord. Tetany is apt to return from time to time after a considerable interval ;this may be noticed in cases received into hospital : these mostly get wellquickly and go home, but in another week or two are as bad as ever. Diagnosis.—Tetany may be mistaken for cerebro-spinal meningitis, but itcan only thus be mi

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