Also found in: Acronyms.
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
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.