AI Article Synopsis
- The study investigates the anatomy of the brachial plexus in fetuses to identify morphological differences and potential causes of obstetric paralysis.
- Nine fetuses at different gestational ages were dissected, focusing on the supraclavicular and infraclavicular sections of the brachial plexus.
- Findings revealed a cord-like shape of the brachial plexus in early stages, variability in the origin of the phrenic nerve, and specific nerve fiber distribution that has implications for clinical and surgical approaches to treating neonatal upper limb paralysis.
Article Abstract
Objective: To study the anatomy of the brachial plexus in fetuses and to evaluate differences in morphology during evolution, or to find anatomical situations that can be identified as the cause of obstetric paralysis.
Methods: Nine fetuses (12 to 30 weeks of gestation) stored in formalin were used. The supraclavicular and infraclavicular parts of the brachial plexus were dissected.
Results: In its early course, the brachial plexus had a cord-like shape when it passed through the scalene hiatus. Origin of the phrenic nerve in the brachial plexus was observed in only one fetus. In the deep infraclavicular and retropectoralis minor spaces, the nerve fibers of the brachial plexus were distributed in the axilla and medial bicipital groove, where they formed the nerve endings.
Conclusion: The brachial plexus of human fetuses presents variations and relations with anatomical structures that must be considered during clinical and surgical procedures for neonatal paralysis of the upper limbs.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6980293 | PMC |
| http://dx.doi.org/10.31744/einstein_journal/2020AO5051 | DOI Listing |
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