Chvostek's sign

(redirected from Chvostek-Weiss sign)

Chvostek's sign

 [khvos´teks)] (Chvostek-Weiss sign [khvos´tek-vīs´)]) a spasm of the facial muscles elicited by tapping the facial nerve in the region of the parotid gland; seen in tetany.

Chvostek's sign, Chvostek-Weiss sign

[khvôsh′teks]
Etymology: Franz Chvostek, Austrian surgeon, 1835-1884
an abnormal spasm of the facial muscles elicited by light taps on the cheek to stimulate the facial nerve in patients who are hypocalcemic. It is a sign of tetany. Checking for this sign is especially important after thyroid or parathyroid surgery.
enlarge picture
Chvostek's sign

Chvostek's sign

An indication of the hypersensitivity of muscles occurring in conditions of lowered blood calcium. Tapping the branches of the facial nerve in front of the ear with the finger tip causes twitching of the muscles of the face. This is an indication of latent TETANY. (Franz Chvostek, 1835–84, Austrian surgeon).