[Acute fulminant brachial plexopathy with good recovery: electrophysiological features].
We report a case of fulminant brachial plexopathy with radicular involvement. A 25-year-old man developed acute total monoplegia in the left upper limb. Needle electromyography showed extensive acute denervation in the C5-T1 spinal segments, and peripheral sensory nerve conduction was normal, mimicking a pre-ganglionic lesion. However, left median somatosensory evoked potentials revealed abnormal Erb's point potential, suggesting a brachial plexus lesion. Corticosteroid treatment resulted in good recovery. These findings suggest that the primary pathophysiology was conduction block and this can explain the good clinical recovery in this patient.
Department of Neurology, Kawasaki Medical School, Kurashiki, Okayama, Japan.
Shoji
S
Hemmi
Katsumi
K
Kurokawa
Taiji
T
Nagai
Nana
N
Izawa
Tatsufumi
T
Murakami
Yoshihide
Y
Sunada
D000208:Acute Disease; D000328:Adult; D001917:Brachial Plexus; D020516:Brachial Plexus Neuropathies / Q000175:diagnosis* / Q000188:drug therapy / Q000503:physiopathology; D004576:Electromyography; D005073:Evoked Potentials, Somatosensory; D006429:Hemiplegia / Q000209:etiology; D006801:Humans; D008297:Male; D011241:Prednisone / Q000008:administration & dosage*; D016896:Treatment Outcome; D034941:Upper Extremity
D011241:Prednisone