Trousseau sign of latent tetany

The Trousseau sign is a clinical evidence of tetany present, for example in the context of hypoparathyroidism.

Occurs after inflating a blood pressure cuff above the systolic blood pressure, a obstetrician of a hand, ( hypocalcemia ) is a latent tetany due to a calcium deficiency can be assumed. The obstetrician is in a contraction of the finger flexors spastikartigen and hand muscles.

The Trousseau sign has low sensitivity and specificity, however, is very easy to check and can therefore as well as the Chvostek sign, for example, after resection of the thyroid serve the medical monitoring of the patient.

It is named after the French internist Armand Trousseau ( 1801-1867 ).