A case of Guyon syndrome with neuroapraxic block resolved after surgical decompression.
Guyon syndrome is the well-known ulnar entrapment at the wrist; usually surgical decompression improves the symptoms. Neurophysiological studies are essential to demonstrate the abnormality of ulnar nerve conduction at the wrist. We report a case of Guyon syndrome onset after 6 h of cycling. Neurophysiological study revealed ulnar neuroapraxic block at the wrist, and axonal impairment. Post-operative clinical and neurophysiological follow-up showed marked clinical improvement and neurophysiological resolution of abnormalities. To our knowledge, no cases of Guyon syndrome with neuroapraxic block are reported in the literature.
Padua
L
L
Instituto di Neurologia, Università Cattolica, Roma, Italy. lpadua@mclink.it
Insola
A
A
LoMonaco
M
M
Denaro
F G
FG
Padua
R
R
Tonali
P
P
D001072:Apraxias / Q000503:physiopathology / Q000601:surgery*; D001369:Axons / Q000502:physiology; D019299:Decompression, Surgical; D006801:Humans; D008297:Male; D008875:Middle Aged; D009431:Neural Conduction / Q000502:physiology; D013577:Syndrome; D014459:Ulnar Nerve / Q000503:physiopathology / Q000601:surgery; D017769:Ulnar Nerve Compression Syndromes / Q000503:physiopathology / Q000601:surgery*; D014953:Wrist / Q000503:physiopathology / Q000601:surgery