USG brachial block in a case of brachial plexus hypertrophy
Now open: Certificate Course in Management of Covid-19 by Govt. Of Gujarat and PlexusMDKnow more...Now open: Certificate Course in Management of Covid-19 by Govt. Of Gujarat and PlexusMDKnow more...
Myriad conditions such as Charcot-Marie-Tooth disease formerly called hereditary motor and sensory neuropathy, chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), neoplasms and leprosy, have been reported causes for brachial plexus hypertrophy. Its occurrence is rare and very few cases have been reported.Repeated episodes of demyelination and remyelination produce a proliferation of multiple layers of Schwann cells around the axon, termed an onion bulb. Acquired demyelination but not hereditary myelinopathies produce a conduction block, resulting in loss of the ability of the nerve action potential to reach the muscle, thereby producing weakness. Demyelination is present if motor and sensory NCVs are reduced to <70% of the lower limits of normal. In CIDP, patients typically present with proximal limb weakness for at least 2 months duration, significant hyporeflexia or areflexia, with reduced NCV and nerve biopsy features of demyelination. Although caution is advised in performing nerve block on cases detected to have brachial plexus hypertrophy, we report a case that did not have prolonged conduction block...

http://bit.ly/2txSoLa
Like
Comment
Share