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ELECTROPHYSIOLOGICAL FINDINGS IN GASTRECTOMIZED PATIENTS WITH LOW SERUM B 12
Author(s) -
Roos Dorthe
Publication year - 1977
Publication title -
acta neurologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.967
H-Index - 95
eISSN - 1600-0404
pISSN - 0001-6314
DOI - 10.1111/j.1600-0404.1977.tb01430.x
Subject(s) - medicine , electrophysiology , vitamin b12 , polyneuropathy , myopathy , electromyography , peripheral neuropathy , motor nerve , subacute combined degeneration , nerve conduction velocity , median nerve , sensory system , anesthesia , surgery , anatomy , psychology , endocrinology , neuroscience , physical medicine and rehabilitation , diabetes mellitus
Thirty‐eight patients with vitamin B 12 deficiency after gastric surgery for a benign peptic ulcer were examined electrophysiologically. Thirteen (34 per cent) had electromyographical signs of peripheral nerve involvement and the amplitude of the sensory potentials of the median nerve at wrist (16 patients) was diminished, whereas sensory and motor conduction velocities were normal. Six patients had clinical signs of polyneuropathy. The electrophysiological findings are compatible with slight loss of myelinated nerve fibres. None of the patients had clinical or electromyographical signs of myopathy.