|Uhthoff symptom||medical dictionary|
A transient temperature-dependent numbness, weakness, or loss of vision. Conduction stops in any nerve if the temperature gets too high. In a damaged nerve, e.g., by demyelinization, this shutdown temperature is lowered, and may approach normal body temperature. Transient neurological dysfunction may then appear with a hot shower, exercise, or fever.
Synonyms: Uhthoff syndrome.
(05 Mar 2000)
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