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Related Experiment Videos

[Babinski and Chaddock signs without apparent pyramidal disfunction].

Péricles Maranhão-Filho1, Eduardo Dib, Rodrigo Gaspar Ribeiro

  • 1Serviço de Neurologia, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.

Arquivos De Neuro-Psiquiatria
|August 2, 2005
PubMed
Summary
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The Chaddock sign, a neurological reflex, was more prevalent than the Babinski sign in patients without pyramidal dysfunction symptoms. This study found no significant influence of head position on these reflex responses.

Area of Science:

  • Neurology
  • Clinical Neuroscience

Context:

  • Assessing neurological signs in patients without prior pyramidal dysfunction symptoms.
  • Investigating the prevalence of specific reflex responses in a clinical setting.

Purpose:

  • To determine the presence of Babinski and Chaddock signs in 100 inpatients.
  • To compare the prevalence of Babinski versus Chaddock signs.
  • To evaluate the influence of head position on reflex responses.

Summary:

  • 10% of patients exhibited hallux extension.
  • The Chaddock sign was positive in 60% of cases, while the Babinski sign was positive in 40%.
  • Abnormal reflexes were observed twice as frequently on the left foot compared to the right.

Impact:

Related Experiment Videos

  • Highlights the higher frequency of the Chaddock sign over the Babinski sign in this patient cohort.
  • Suggests potential lateralization of abnormal reflexes.
  • Indicates no significant impact of head position on the elicitation of these signs.