Intra-operative monitoring during syringo-endoscopy: results of median nerve stimulated somatosensory evoked potentials in nine patients.
Intra-operative SEP monitoring was performed in nine patients with cervical syringomyelia undergoing myelotomy and syringo-endoscopy. Several cortical and subcortical SEP components were evaluated. Pathological latency shifts of brain stem P14 were seen in two patients; other SEP components did not worsen nor recover intra-operatively. The clinical and pathophysiological significance of the data is briefly discussed.
Wagner
W
W
Neurochirurgische Universitätsklinik, Mainz, Federal Republic of Germany.
Halbig
L
L
Hüwel
N
N
Urban
V
V
Perneczky
A
A
D000328:Adult; D000344:Afferent Pathways / Q000503:physiopathology; D000368:Aged; D004558:Electric Stimulation; D019723:Endoscopes; D005073:Evoked Potentials, Somatosensory / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008475:Median Nerve / Q000503:physiopathology*; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000295:instrumentation*; D011930:Reaction Time / Q000502:physiology; D013003:Somatosensory Cortex / Q000503:physiopathology; D013116:Spinal Cord / Q000503:physiopathology / Q000601:surgery; D013595:Syringomyelia / Q000503:physiopathology / Q000601:surgery*