小児“もやもや”病における体性感覚誘発電位の変動

概要

論文の詳細を見る
Somatosensory evoked potentials to median nerve stimulation were examined on 16 children of“Moyamoya”disease and 9 normal children. In 16 children of“Moyamoya”disease, 6 children were examined before ST·MC anastomosis, and other 10 children were done more than 3 months after bilateral anastomosis.<BR>In normal children, SEP waves consisted of 3 negative waves (N17: 17.1±1.3msec. N32: 31.9±3.9msec. N55: 55.4±7.0msec.) and 3 positive waves (PH: 11.4±1.5msec. P24: 24.2±2.1msec. P42: 41.8±3.6msec.). In children with“Moyamoya”disease, latency of early component (P11-N17) were slightly shorter than in normal children. In 10 children with bilateral ST·MC anastomosis, latencies of P11-N32 and P11-N55 were significantly shorter than in 6 preoperative children.<BR>Negative peak amplitudes were compared without operation to with bilateral anastomosis, only N17 peak amplitudes in bilateral operated group were significantly higher than in pre-operated group.<BR>Then SEP were examined following hyperventilation in“Moyamoya”disease. In several minutes after hyperventilation, amplitude of N55 peak were decreased abruptly in the cases of“Moyamoya”disease with TIA, who has not been done with ST·MC anastomosis. However, when operation has been done, amplitude of N55 peak has not been decreased yet after hyperventilation.<BR>These results indicated that ST·MC anastomosis were effective in cases of“Moyamoya” disease with TIA.