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When tetany follows operations for goitre it is due to the removal of these glands.

Lastly, in the tetany of children, or that following operations on the thyreoid gland, the spasms are of a jerking character, affect chiefly the hands and fingers, and yield to medicinal treatment.

Trousseau's sign is the production of tetany by applying firm and prolonged pressure to the brachial nerve in the upper arm.

In man, a condition of nervous over-excitability has been described as tetany.