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Related Experiment Videos

Brachial plexus palsy: an old problem revisited.

R J Jennett1, T J Tarby, C J Kreinick

  • 1Department of Obstetrics and Gynecology, St. Joseph's Hospital and Medical Center, Phoenix, AZ.

American Journal of Obstetrics and Gynecology
|June 1, 1992
PubMed
Summary

Brachial plexus palsy may originate before birth, not solely from birth injuries like shoulder dystocia. This suggests intrauterine factors are important in brachial plexus impairment, challenging the assumption of birth process injury.

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Area of Science:

  • Obstetrics and Gynecology
  • Neurology
  • Perinatal Medicine

Background:

  • The prevailing obstetric view attributes brachial plexus palsy to excessive fetal head traction during delivery.
  • Neurologic literature suggests a potential intrauterine origin for brachial plexus palsy.
  • This study aimed to investigate the origins of brachial plexus impairment.

Purpose of the Study:

  • To evaluate the hypothesis that brachial plexus palsy can have an intrauterine origin.
  • To compare cases of brachial plexus impairment with and without shoulder dystocia.
  • To identify factors associated with brachial plexus impairment.

Main Methods:

  • A perinatal database was searched for cases of shoulder dystocia.
  • Cases of brachial plexus impairment were independently identified.

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  • Data from both groups were analyzed and compared.

    • Main Results:

    • Seventeen cases of brachial plexus impairment were associated with shoulder dystocia.
    • Twenty-two cases of brachial plexus impairment occurred without shoulder dystocia.
    • Significant differences in birth weight, maternal age, and parity were observed between the groups.

    Conclusions:

    • Findings suggest intrauterine maladaptation may contribute to brachial plexus impairment.
    • Brachial plexus impairment is not definitive proof of birth process injury.
    • Re-evaluation of the etiology of brachial plexus palsy is warranted.