Hypoparathyrosis (tetany) - the disease, described a depression of function of the parathyroid glands, the raised nervous both muscular excitability and a convulsive syndrome.

Etiology. Play a role a congenital underdevelopment or absence of parathyroid glands, excision or their damage during operation, their lesion at infections, intoxications, autoimmune disturbances, depression of sensitivity of tissues to action of a parathormone.

Signs, current. The attack of cramps is preceded usually with feeling of a numbness, crawling of small insects in the field of a upper lip, fingers of arms and legs, a cold snap of extremities, feeling of a restraint. Then morbid tonic and clonic cramps of separate groups of muscles develop: extremities, the face, a trunk. Cramps are observed mainly in muscles, therefore the brush of an arm accepts characteristic position of "obstetrical hand". At a tetany of muscles of the bottom extremities of stop it is incurvated inside, fingers are turned in to a sole. Cramps of a facial musculation are accompanied by a masticatory spasm, formation of " the fish mouth ». Diffusion of cramps on muscles of a neck can cause a laryngospasm, accompanied a dyspnea, a cyanosis, sometimes an asphyxia. Can develop a pylorospasm with a vomiting, a nausea, an acidosis; spastic strictures of a musculation of an intestine, a bladder. Attacks of a tetany are provoked by various stimuluses: painful, mechanical, thermal, a hyperventilation.