This video demonstrates Chvostek's sign in a 53-year-old who presented two weeks after near total thyroidectomy for obstructive nodular goitre. Chvostek's sign is traditionally elicited by tapping on the face at a point just anterior to the ear and below the zygomatic bone. A positive response is represented by twitching of the ipsilateral facial muscles, suggesting neuromuscular excitability caused by hypocalcaemia
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Title from resource description page (viewed August 20, 2021)
