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DictionarySeesignFriedreich sign
Fried·reich sign (frēd'rīk), in adherent pericardium, sudden collapse of the previously distended veins of the neck at each diastole of the heart.Fried·reich sign (frēd'rīk sīn) In adherent pericardium, sudden collapse of the previously distended veins of the neck at each diastole of the heart. Friedreich sign1. Sudden collapse of the cervical veins that were previously distended at each diastole. The cause is an adherent pericardium. 2. Lowering of the pitch of the percussion note that occurs over an area of cavitation during inspiration.See also: Friedreich, NikolausFriedreich, Nikolaus, German neurologist, 1825-1882. Friedreich ataxia - sclerosis of the posterior and lateral columns of the spinal cord, occurring in children and marked by ataxia in the lower extremities, extending to the upper, followed by paralysis and contractures. Synonym(s): Biemond ataxia; hereditary spinal ataxiaFriedreich disease - an ill-defined disorder marked by rapid and widespread muscle contractions Synonym(s): Friedreich spasms; myoclonus multiplex; paramyoclonus multiplexFriedreich phenomenon - the tympanitic percussion sound over a pulmonary cavity is slightly raised in pitch on deep inspiration.Friedreich sign - in adherent pericardium, sudden collapse of the previously distended veins of the neck at each diastole of the heart.Friedreich spasms - Synonym(s): Friedreich diseaseLegalSeeSign |