Gerhardt sign

Gerhardt sign

A near-extinct term of uncertain clinical utility described by CJ Gerhardt (1833–1902) for complete bilateral paralysis of the laryngeal adductor muscles, which may accompany respiratory dyspnea.

Gerhardt,

Carl Adolf Christian Jacob, German physician, 1833-1902.
Gerhardt disease - Synonym(s): Gerhardt-Mitchell disease
Gerhardt-Mitchell disease - paroxysmal throbbing and burning pain in the skin affecting the hands and feet, accompanied by a dusky mottled redness of the parts with increased skin temperature. Synonym(s): erythromelalgia; Gerhardt disease; Mitchell disease; Weir Mitchell disease
Gerhardt reaction - Synonym(s): Gerhardt test for acetoacetic acid
Gerhardt-Semon law - obsolete law formerly used to account for the position of affected vocal cords after injury to the recurrent laryngeal nerve(s).
Gerhardt sign - complete bilateral paralysis of the adductor muscles of the larynx with severe inspiratory dyspnea. Synonym(s): Biermer sign
Gerhardt syndrome - bilateral laryngeal abductor paralysis.
Gerhardt test for acetoacetic acid - Synonym(s): Gerhardt reaction