聴性脳幹反応による天幕切痕ヘルニアの診断

概要

論文の詳細を見る
Correlations between changes in wave V of the auditory brain-stem response, intracranial pressure, and neurological signs of uncal herniation as graded by Plum and Posner were in-vestigated in 12 patients with supratentorial mass lesion. In three of the five patients who later show-ed signs of uncal herniation, the latency of wave V, which presumably originated in the inferior col-liculus, was already significantly prolonged. In 6 cases which progressed to the early third nerve stage of uncal herniation, the latency of wave V was prolonged in 5 cases. In 7 cases which progress-ed to the late third nerve stage or worse, the latency was prolonged in 6 cases and suppressed in one. In four of six attempts (three cases), lowering of the intracranial pressure by 10% glycerol solution resulted in normalization of the latency of wave V without clinical improvement. These results strongly indicate that measurement of wave V can predict the beginning of uncal herniation and can assess the effectiveness of medical or surgical decompression on brain-stem function.
日本脳神経外科学会の論文
1984-06-15