Nau H E, Bock W J, Clar H E
Acta Neurochir (Wien). 1978;44(3-4):207-14. doi: 10.1007/BF01402062.
Sixty-six patients with tumours in the sellar region were examined. All were operated on either by the transfrontal or the transsphenoidal route. Pre- and postoperative longitudinal electroencephalographic investigations were performed. Preoperative electroencephalograms showed a normal frequency content in cases of intrasellar tumours or those reaching the chiasma. Nearly all cases had irregularities in the temporal regions. Tumours compressing the third ventricle had slower average frequencies and a general slowing in all cases. Besides these alterations unilateral delta waves or bitemporal dysrhythmic groups were sometimes found. A connection between extension of the tumour and its histological nature could not be found, but the operative approach influenced the electroencephalographic disturbances enormously. After a transfrontal approach and removal of the tumour the electroencephalogram was unchanged. Sometimes a mild transient bitemporal slowing was present. But after a transfrontal operative approach a general slowing was common, usually with focal marked slow activity in the right fronto-temporal area.
对66例蝶鞍区肿瘤患者进行了检查。所有患者均通过经额或经蝶窦途径进行手术。进行了术前和术后的纵向脑电图检查。术前脑电图显示，鞍内肿瘤或侵犯视交叉的肿瘤，其频率成分正常。几乎所有病例在颞区均有异常。压迫第三脑室的肿瘤平均频率较慢，所有病例均有普遍减慢。除了这些改变外，有时还会发现单侧δ波或双颞区节律紊乱组。未发现肿瘤的扩展与其组织学性质之间存在关联，但手术入路对脑电图干扰影响极大。经额入路切除肿瘤后，脑电图无变化。有时会出现轻度短暂的双颞区减慢。但经额手术入路后，普遍减慢很常见，通常在右侧额颞区有局灶性明显慢活动。
