When first seen, all the patients had tetany manifested by either spontaneous carpopedal spasm or positive Chvostek and Trousseau signs. In addition, 3 had generalized convulsions, and in 2 these ...

Physical examination revealed a clear Trousseau's sign (video 1), which is a carpopedal spasm induced by ischaemia through inflation of a sphygmomanometer cuff to a suprasystolic blood pressure.