Experimental ischaemia of the vertebral artery and its effect on brain stem auditory evoked responses in guinea pigs.
The aim of the study was to examine the effect of artificial ischaemia of the vertebral artery region on brain stem evoked auditory potentials (BAEP) in guinea pigs. The results indicate that BAEP are influenced mainly by unilateral irritation of the vertebral artery. An increase in the audibility threshold was observed in the experimental guinea pigs in group C (an increase of 10-40 dB on the side of irritation of the vertebral artery and of 10 dB on the opposite side). Lengthening of the latency period of the P2 wave and of the conduction period between waves P1 and P5 was also observed.
Olszewski
J
J
Department of Human Anatomy, Military Medical Academy, Lódź, Poland.
D000818:Animals; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006168:Guinea Pigs; D007511:Ischemia / Q000503:physiopathology*; D008297:Male; D014711:Vertebral Artery / Q000502:physiology*