Trousseau sign of latent tetany
Trousseau Sign of Latent Tetany
Trousseau Sign of Latent Tetany (pronounced tru-soz sign of lay-tent tet-uh-nee) is a medical term used to describe a clinical sign that is indicative of tetany, a condition characterized by muscle spasms, cramps, and hyperexcitability. The sign is named after the French physician Armand Trousseau who first described it in the 19th century.
Etymology
The term "Trousseau Sign" is derived from the name of the French physician Armand Trousseau, who first described the sign. The term "latent tetany" refers to the condition of tetany that is not yet fully manifest or apparent. The word "tetany" is derived from the Greek word "tetanos", which means "stretched", referring to the state of the muscles during a spasm.
Description
The Trousseau Sign of Latent Tetany is a medical sign observed in patients with latent tetany. It is elicited by inflating a blood pressure cuff on the patient's arm to above their systolic blood pressure for about 3 minutes. This causes occlusion of the brachial artery, leading to ischemia of the distal nerves and muscles, and resulting in carpopedal spasm. The spasm is characterized by flexion of the wrist and metacarpophalangeal joints, extension of the fingers, and flexion of the thumb on the palm.
Related Terms
- Tetany: A condition characterized by muscle spasms, cramps, and hyperexcitability.
- Armand Trousseau: A French physician who first described the Trousseau Sign.
- Carpopedal spasm: A spasm affecting the hands and feet, often seen in conditions like tetany.
- Ischemia: A condition in which there is insufficient blood supply to a part of the body, often due to a blockage in the blood vessels.
- Brachial artery: The major blood vessel of the upper arm.
See Also
External links
- Medical encyclopedia article on Trousseau sign of latent tetany
- Wikipedia's article - Trousseau sign of latent tetany
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