Medical Dictionary

Chvostek's sign

noun Chvos·tek's sign \ (ḵə-)ˌvȯs-ˌtek(s)- \
variants: or Chvostek sign play \(ḵə-)ˌvȯs-ˌtek-\

medical Definition of Chvostek's sign

:a twitch of the facial muscles following gentle tapping over the facial nerve in front of the ear that indicates hyperirritability of the facial nerve

Biographical Note for chvostek's sign

  • Chvostek \ˈḵvȯs-ˌtek\, Franz (1835–1884), Austrian surgeon. Chvostek was a military doctor and professor at a military medical school in Vienna. In 1876 he published an article in which he announced his discovery that in a patient with tetany, tapping the facial nerve in front of the ear produces a spasm of the cheek muscles. This sign of tetany now bears his name.

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