Intraoperative monitoring of a patient with craniovertebral junction meningioma.
Intraoperative monitoring is considered as a useful tool to prevent neurological damage during different neurosurgical procedures. Somatosensory evoked potentials (SEP) allow simultaneous assessment of several cortical and sub cortical centers. In this case presentation, we report intraoperative monitoring of an elderly patient with craniovertebral junction meningioma. Tibial SEP responses were elicited by stimulation of the tibial nerve; the recordings were visually analyzed for the presence of the main peaks P40-N50, peak to peak amplitudes, peak latencies and compared to baseline recordings throughout the procedure. During decompression from the medial aspect of the medulla SEP responses were lost for a brief period of time. Surgeons achieved total tumor removal and the patient left the operating room without any neurological deficit.
Atalay
Ayçe
A
Başkent University, Faculty of Medicine, Department of Physical Medicine and Rehabilitation, Ankara, Turkey. aycea@baskent-ank.edu.tr
Atalay
Başar
B
Yemişçi
Oya Umit
OU
Karataş
Metin
M
Altinörs
Nur
N
D000368:Aged; D000758:Anesthesia; D001268:Atlanto-Axial Joint / Q000473:pathology / Q000601:surgery*; D001269:Atlanto-Occipital Joint / Q000473:pathology / Q000601:surgery*; D004569:Electroencephalography; D005073:Evoked Potentials, Somatosensory / Q000502:physiology; D006801:Humans; D007796:Laminectomy; D008279:Magnetic Resonance Imaging; D008297:Male; D008579:Meningioma / Q000150:complications / Q000473:pathology / Q000601:surgery*; D016343:Monitoring, Intraoperative; D019635:Neurosurgical Procedures; D011782:Quadriplegia / Q000209:etiology; D013979:Tibial Nerve / Q000502:physiology