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Prognostic value of thumb pain sensation in birth brachial plexopathy

Carlos O Heise1, Roberto S Martins, Luciano H Foroni

  • 1Department of Neurology and Neurosurgery, Medical School, University of São Paulo, São Paulo, SP, Brazil. coheise@ig.com.br

Arquivos De Neuro-Psiquiatria
|August 18, 2012
PubMed

Insights

Assessing thumb pain sensation in infants with birth brachial plexopathy can predict outcomes. Absent sensation in newborns with brachial plexus injuries indicates a high likelihood of poor functional recovery.

Area of Science:

  • Pediatric Neurology
  • Neonatal Care
  • Orthopedic Surgery

Background:

  • Birth brachial plexopathy (BBP) is a significant cause of upper limb dysfunction in newborns.
  • Accurate prognostic indicators are crucial for timely intervention and management.

Purpose of the Study:

  • To determine the prognostic value of absent thumb pain sensation in infants diagnosed with BBP.
  • To assess the utility of this sensory test in predicting functional outcomes.

Main Methods:

  • A cohort of 131 infants under two months with BBP was evaluated.
  • Thumb nail bed compression was used to test pain sensation, assessing C6 sensory fibers.
  • Patients were followed monthly, with poor outcome defined as less than antigravity elbow flexion by six months.

Main Results:

  • Thirty infants presented with absent thumb pain sensation.
  • Of those with absent sensation, 26 experienced a poor outcome.
  • The test demonstrated a sensitivity of 65% and a specificity of 96% for predicting poor outcomes.

Conclusions:

  • Absent thumb pain sensation is a strong predictor of poor functional outcomes in infants with BBP.
  • Incorporating this simple sensory test into clinical assessments can aid in early prognostication and management planning.
Abstract

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