Electrophysiologic Measurements: Intraoperative Evoked Potential Monitoring

In the neurosurgical approach to intracranial aneurysms which are often accompanied by arterial spasm and cortical ischaemia, monitoring procedures aim to obtain useful information on cerebral function. SEPs evoked by stimulation of the median nerve at the wrist and of the tibial nerve at the medial malleolus were registered in 45 patients with intracranial aneurysms during neurosurgical procedures. Our results show SEP abnormalities during different stages of neurosurgical procedures in 36 patients out of the monitored 45. Significant abnormalities of SEPs with respect to the control group were decrease of the amplitude of N 20-P 25 complex, lengthening of the absolute latency of the waves N 20- and P 25 and lengthening of the central conduction time (CCT) (N 13-N 20). The greatest SEP abnormalities were registered during the neurosurgical approach to aneurysm and during the clipping procedure. However, the changes were reversible in the majority of the patients. The aim of this paper was to focus on early detection of some cerebral function disturbances during the neurosurgical procedure as well as the prevention of possible brain damage.

show abstract

Somatosensory evoked potentials during spinal surgery

Cowan

1998

Can J Anaesth

View full text Add to dashboard Cite

Electrophysiologic Measurements: Intraoperative Evoked Potential Monitoring

Cited by 4 publications

References 32 publications

Operations of Skull Base Processes: Value of Intraoperative Monitoring

Operations of Skull Base Processes: Value of Intraoperative Monitoring

Somatosensory evoked potential monitoring during intracranial surgery

Somatosensory evoked potentials during spinal surgery

Contact Info

Product

Resources

About