MOTOR VERSUS SOMATOSENSORY EVOKED-POTENTIAL CHANGES AFTER ACUTE EXPERIMENTAL SPINAL-CORD INJURY IN RATS
Makaleler > Tam Makale · 1991
Yazarlar: Mehmet ZİLELİ, J SCHRAMM
ACTA NEUROCHIRURGICA, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 1991, cilt 108, ss 140-147
DOI: 10.1007/bf01418522
Özet
In this study, averaged cortical somatosensory evoked potentials (SEP) after sciatic nerve stimulation, and lower extremity muscle responses after motor cortex stimulation (MEP) were compared in rats. 10 animals served as light (25 g-cm) and 10 animals as severe (80 g-cm) acute spinal cord injury group after weight dropping trauma. After the initial loss of components, both SEP and MEP recovered in most cases in the light injury group. In the severe injury group, however, no recovery was observed in cortical SEPs, while the muscle MEP recovered in some animals. Light spinal cord injury had little effect on muscle MEPs and caused a paradoxical amplitude increase in some MEP recordings. Latency values of muscle MEPs did not show great changes after either kind of injury, while cortical SEP latency was considerably delayed.