effects of common carotid artery occlusion on the somato-sensory evoked potentials [SSEP's] in Newzealand white rabbits

ABSTRACT

Somatosensory evoked potentials [SSEP's] study was made by placing surface electrode directly on the exposed cortical surfaces [post- central gyrus] of both the cerebral hemispheres in anesthetized New Zealand White Rabbits. The positive component P1 of NPN complex potential showed a significant delay [P < 0.01] in the affected side [right] 48 hours after the occlusion of the right common carotid artery. The amplitude of P1 is also reduced. The absolute peak latenceis of the other two negative components [N1 and N2] showed similar changes as P1 after the occlusion. The P1 of the un-affected hemisphere] showed a non-significant prolongaion