Search
Trousseau's sign
In latent tetany, the occurrence of carpal spasm or accoucher's hand, elicited when the upper arm is compressed, as by a blood pressure cuff commonly to 20 mmHg over systolic blood pressure for 3 minutes.
Etiology:
- hypocalcemia
- hypomagnesemia
Pathology:
- carpal spasm results from ischemia induced by compression from the inflated cuff
Clinical manifestations:
- carpal spasm manifests as flexion of the wrist, thumb, & MCP joints with hyperextension of the interphalangeal joints
Related
Trousseau's syndrome; Trousseau's sign of malignancy; thrombophlebitis migrans
General
sign/symptom
References
- Stedman's Medical Dictionary 24th ed, Williams &
Wilkins, Baltimore, 1982
- Physiopedia: Trousseau's Sign
https://www.physio-pedia.com/Trousseau%27s_Sign