SEP Flashcards
1
Q
What is sensory evoked potentials?
A
electrical stimulation of peripheral nerves (also hearing and flashing lights) causing CNS evoked responses.
2
Q
What SSEP stimulation has prognostic significance in cervical spondylotic myelopathy?
A
median nerve stimulation.
3
Q
What are neurosurgeons commonly using SSEP for?
A
Intraoperative purposes
4
Q
What is significant differences when using evoked potentials and SSEP monitoring intraop?
A
10% increased latency of a major evoked potential or More than 50% drop in amplitude. ASSESS all variables
5
Q
WHat are we looking for when using SSEP for localizing primary sensory cortex intraop?
A
Phase reversal potentials across the central sulcus.
