title: Chin tremor in full-term neonate after hypoxia.
abstract: BACKGROUND
  Newborns may present a range of motor phenomena that are not epileptic in nature. Chin tremor is an unusual movement disorder that typically starts in early childhood and may be precipitated by stress and emotion. Its pathophysiology has not been fully elucidated.
  
  
  METHODS
  We describe a full-term newborn that, immediately after neonatal anoxia, presented body and chin tremors that were unresponsive to anti-epileptic drugs. Subsequent neurological evaluation revealed signs of pyramidal tract damage and chin tremor triggered by percussion and crying. We discuss the hypothesis that the anatomopathological abnormality may lie at the level of the higher cortical centers or midbrain.
  
  
  CONCLUSIONS
  Further studies are needed in order to gain greater comprehension of neonatal tremors. Recognition of the various etiological possibilities and consequent management of treatable causes is essential for care optimization.
authors: Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, Brazil. monica_scattolin@yahoo.com.br
authors: Mônica Ayres de Araújo
authors: MA
authors: Scattolin
authors: Catherine
authors: C
authors: Marx
authors: Ruth
authors: R
authors: Guinsburg
authors: Marcelo Rodrigues
authors: MR
authors: Masruha
authors: Luiz Celso Pereira
authors: LC
authors: Vilanova
mesh_terms: D001921:Brain / Q000473:pathology; D002680:Chin; D006801:Humans; D002534:Hypoxia, Brain / Q000150:complications*; D007223:Infant; D008279:Magnetic Resonance Imaging; D008297:Male; D014202:Tremor / Q000209:etiology*