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Related Experiment Videos

Infection: a stimulus for tic disorders.

H S Singer1, J D Giuliano, A M Zimmerman

  • 1Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287-8811, USA.

Pediatric Neurology
|July 29, 2000
PubMed
Summary
This summary is machine-generated.

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Group A streptococcal infections may be linked to the sudden onset or worsening of tics in children. About 11% of children with tic disorders experienced abrupt tic changes following a streptococcal infection.

Area of Science:

  • Pediatric Neurology
  • Infectious Diseases
  • Psychiatry

Background:

  • Tics and obsessive-compulsive behaviors can significantly impact a child's quality of life.
  • The potential role of infections in the onset or exacerbation of these conditions is an area of ongoing research.

Purpose of the Study:

  • To investigate the association between infections, particularly group A hemolytic streptococcal infections, and the abrupt onset or exacerbation of tics in children.
  • To evaluate the frequency of infection-associated tic exacerbations in pediatric patients.

Main Methods:

  • A structured clinical interview was employed to assess 80 children aged 5-17 diagnosed with tic disorder.
  • Data collected included the onset and exacerbation patterns of tic symptoms and their historical association with infections.

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Main Results:

  • Over half of the children (53%) reported a sudden onset or worsening of tic symptoms.
  • Among those with abrupt tic changes, 15% had a historically associated infection, with nine specifically linked to streptococcal infections.
  • Approximately 11% of children with tic disorders experienced abrupt tic behavior changes within six weeks post-streptococcal infection.

Conclusions:

  • Abrupt tic onset or exacerbation is a notable phenomenon in children with tic disorders.
  • A significant subset of these abrupt changes may be associated with streptococcal infections, suggesting a potential etiological link that warrants further investigation.