Nikolaus Friedreich

Nikolaus Friedreich (1825-1882) enhanced

Nikolaus Friedreich (1825-1882) was a German neurologist and pathologist.

Friedreich described his eponymous ataxia in a series of papers between 1863 and 1877. He recorded nine members of three families who developed ataxia, dysarthria, sensory loss, muscle weakness, scoliosis, foot deformity, and cardiac symptoms at puberty.

His father was Johann Baptist Friedreich (1796–1862) an eminent psychiatrist and member of the ‘somatic school’ of psychiatry in Germany. His grandfather was Nicolaus Anton Friedreich (1761-1836) whose description of idiopathic facial paralysis ‘De paralysi musculorum faciei rheumatici 1797‘ preceded Charles Bell


Biography
  • Born July 1, 1825, Würzburg.
  • His father was Johann Baptist Friedreich (1796–1862) an eminent psychiatrist and member of the ‘somatic school’ of psychiatry in Germany. His grandfather was Nicolaus Anton Friedreich (1761-1836) whose description of idiopathic facial paralysis ‘De paralysi musculorum faciei rheumatici 1797‘ preceded Charles Bell
  • Died July 6, 1882, Heidelberg

Medical Eponyms

Friedreich-Auerbach disease (1863) facial hemi-hypertrophy

Friedreich’s ataxia (1877)

Friedreich’s disease (1881) sudden brief clonic jerks may be aggravated by excitement and disappear during sleep. Usually affecting single proximal muscle group of the extremities.

Friedreich’s sound change (1880) lower pitch of percussion note over cavitating lung lesion during inspiration

Friedreich sign – in the presence of a pericardial effusion the sudden collapse of distended neck veins with diastole suggests pericardial tamponade

Friedrich-Erb-Arnold syndrome [aka Uehlinger syndrome; Pachydermoperiostosis or primary hypertropic osteoarthropathy] Characterized by pachydermia (thickening of the facial skin and/or scalp); digital clubbing; and periostosis (swelling of periarticular tissue)


Major Publications

References

Biography

Eponymous terms


Eponym

the person behind the name

BA MA (Oxon) MBChB (Edin) FACEM FFSEM. Emergency physician, Sir Charles Gairdner Hospital.  Passion for rugby; medical history; medical education; and asynchronous learning #FOAMed evangelist. Co-founder and CTO of Life in the Fast lane | Eponyms | Books | Twitter |

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