Alerted by the symptoms of spasmophilia, your doctor may carry out clinical examinations to demonstrate possible neuromuscular hyperexcitability.

For this, it has at its disposal a battery of tests of which the two main ones are the sign of Chvostek and that of Trousseau.

The sign of Chvostek is made by striking with a hammer with reflexes a branch of the facial nerve located between the commissure of the eye and the lip. When the sign is positive, a contraction of the upper muscle of the lip takes place, the mouth contracts to form what is known as a "tench muzzle."

The sign of Trousseau is sought by placing a venous tourniquet for several minutes on the patient. If the latter is spasmophilic, a tetanus crisis will occur: the extended fingers stick together to form a gutter, the hand flexes on the forearm and the forearm closes on the thorax. Code>

Other signs may be used but show only relative interest: those of Weiss and Lust.

Additional examinations may be carried out, such as electromyography (electrophysiology exploration) in order to calculate the degree of excitability of the nerves and muscles, as well as biological examinations which will make it possible to measure calcium, phosphorus and magnesium blood . A relatively recent hypothesis tends to attribute spasmophilia to a magnesian deficit, a deficit explaining neuromuscular symptoms.

Sources

Interview with Dr Noguès, general practitioner