Liguori G, Buono S, Bellotti A, Daniele B, Ambrosio A
Riv Neurol. 1985 Jul-Aug;55(4):227-46.
The authors reviewed the electroencephalographic findings relevant to a casuistry of 136 cerebral tumours in paediatric age and correlated them with the anatomic site of the neoplasias, as checked on the operating table, and with clinical symptomatology. The casuistry, as concerns the site of the tumours, consists of 32 cases with a hemispheric localisation, 35 localized on the median line (suprasellar tumours, tumours of the 3rd ventricle, tumours of the basal nuclei and tumours of the pineal region) and 68 cases of tumours of the cerebellar fossa. E.E.G. proved normal in 9.3% of the patients with a hemispheric tumour, 17.1% of those with median tumours and in 23.1% of the tumours of the cerebellar fossa. 12.5% of the cases with a hemispheric tumour showed a general widespread alteration of the electroencephalogram, which was also traceable in 20% of the deep seated tumours and 13% of the subtentorial tumours. A focal E.E.G. finding with polymorphic delta waves was detected in 62.5% of the tumours with a hemispheric localisation, as compared to 14.2% of the deep seated and 28% of the subtentorial ones. Finally, in the three groups, intermittent slow waves were detected respectively in 46.8%, 51.4% and 72.4% of the cases. Related with clinical conditions, in the presence of endocranial hypertension, a clear prevalence of general widespread alteration and of intermittent activities were detected. The authors discuss the diagnostic value of each E.E.G. finding in cerebral tumours with particular attention to localizing value of focal polymorphic delta waves and to the meaning of intermittent slow waves which, in paediatric age, show a clear prevalence in the posterior cerebral areas.
作者回顾了与136例小儿脑肿瘤病例相关的脑电图检查结果，并将其与手术台上检查的肿瘤解剖部位以及临床症状相关联。就肿瘤部位而言，该病例组包括32例半球定位肿瘤、35例中线部位肿瘤（鞍上肿瘤、第三脑室肿瘤、基底核肿瘤和松果体区肿瘤）以及68例小脑窝肿瘤。脑电图检查显示，半球肿瘤患者中9.3%结果正常，中线肿瘤患者中17.1%正常，小脑窝肿瘤患者中23.1%正常。半球肿瘤患者中有12.5%脑电图出现普遍广泛改变，深部肿瘤患者中有20%、幕下肿瘤患者中有13%也有此表现。半球定位肿瘤患者中有62.5%检测到具有多形性δ波的局灶性脑电图表现，而深部肿瘤患者中这一比例为14.2%，幕下肿瘤患者中为28%。最后，在三组病例中，分别有46.8%、51.4%和72.4%检测到间歇性慢波。与临床情况相关，在存在颅内高压时，普遍广泛改变和间歇性活动明显占优势。作者讨论了脑电图各项检查结果在脑肿瘤诊断中的价值，特别关注局灶性多形性δ波的定位价值以及间歇性慢波的意义，在小儿患者中，间歇性慢波在大脑后部区域明显占优势。
