SciELO - Scientific Electronic Library Online

 
vol.18Magnetic hyperthermia therapy in glioblastoma tumor on-a-Chip modelComparison between enzyme-linked immunosorbent assay and indirect immunofluorescence for detection of antineutrophil cytoplasmic antibodies author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Einstein (São Paulo)

Print version ISSN 1679-4508On-line version ISSN 2317-6385

Abstract

CUNHA, Marcelo Rodrigues da et al. Anatomical study of the brachial plexus in human fetuses and its relation with neonatal upper limb paralysis. Einstein (São Paulo) [online]. 2020, vol.18, eAO5051.  Epub Jan 27, 2020. ISSN 1679-4508.  https://doi.org/10.31744/einstein_journal/2020ao5051.

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.

Keywords : Brachial plexus/anatomy & histology; Fetus/abnormalities; Paralysis.

        · abstract in Portuguese     · text in English | Portuguese     · English ( pdf ) | Portuguese ( pdf )