ECOG_EP for CLTM

ECOG/EP for CLTM
nearfield, post-synaptic activity in cervical spinal cord - CORRECT
ANSWER-N13

far-field, caudal medial/leminsicous (AEP) - CORRECT ANSWER-P14

far-field, post-synaptic activity from several sites in the brain stem and thalamus -
CORRECT ANSWER-N18

near-field, somatosensory cortex potential - CORRECT ANSWER-N20

median generator sites - CORRECT ANSWER-N13
P14
N18
N20

electrode impedance with ECOG - CORRECT ANSWER-higher- placement is
unstable

reference electrode in ecog - CORRECT ANSWER-placed away from active
electrodes in the subgleal space

LFF in ecog - CORRECT ANSWER-can be raised to 5-10 Hz
primary interest is spikes- not slow waves

responses required in cortical SSEP ecog - CORRECT ANSWER-response is
much larger than scalp-recorded
less than 100 average responses are needed

OR troubleshooting - CORRECT ANSWER--ask surgeon to stop electrocautery
temporarily to document the artiface
-60 Hz notch is prohibited
-primary non-electrical issue is effect of anesthesia
-other issues include vital signs and positioning

positioning during ecog - CORRECT ANSWER-avoid hyperextension of joints