The laryngospasm - meets at early children's age, at a rachitis, a spasmophilia is more often, hydrocephaluses or owing to artificial feeding, etc. speaks rising of reflex excitability of the nervously-muscular apparatus of a larynx. At adults can be result of a reflex boring of a larynx an alien body, inhalations of irritating gases.

Signs, current. At children - periodic attacks of convulsive short circuit of a voice cleft with a long noisy inspiration, a cyanosis, twitchings of extremities, narrowing of pupils, sometimes with respiratory standstill, seldom loss of consciousness. The attack usually lasts some seconds and respiration is restored. At adults the attack of a laryngospasm also is short and is accompanied by strong tussis, a hyperemia of the face, and then a cyanosis.