de Falco F A, Roberti R, Florio C, Franzese G
Section of Neurology, S. Maria di Loreto Nuovo Hospital, USL N. 44 of Naples, Italy.
Acta Neurol (Napoli). 1992 Aug-Dec;14(4-6):290-6.
The Authors studied the presence of photoparoxysmal response (PPR) during intermittent photic stimulation (IPS) in 2,888 consecutive EEG recordings. PPR was present in 2.3% of EEGs and 10% of all patients referred to EEG laboratory for epilepsy (45 patients, 18 males, 27 females (M:F ratio 1:1.5), mean age 12 yrs). In 24 (53.3%) of these patients PPR was evident only (24.4%) or strikingly (28.9%) on eye closure during IPS. In 7 patients no other epileptic abnormalities were found on basal EEG and during hyperventilation, nor during IPS with eyes closed and with eyes open. The Authors consider the eye closure during IPS the most useful method to reveal a PPR in photosensitive patients and believe that a good IPS technique must include this procedure in the routine EEG examination.
作者们在2888份连续的脑电图记录中，研究了间歇性光刺激（IPS）期间光阵发性反应（PPR）的存在情况。PPR出现在2.3%的脑电图中，在所有因癫痫转诊至脑电图实验室的患者中占10%（45例患者，18例男性，27例女性（男女比例1:1.5），平均年龄12岁）。在这些患者中，24例（53.3%）的PPR仅在IPS期间闭眼时明显（24.4%）或显著（28.9%）。7例患者在基础脑电图、过度换气期间、闭眼和睁眼的IPS期间均未发现其他癫痫异常。作者们认为IPS期间闭眼是揭示光敏患者PPR的最有用方法，并认为良好的IPS技术必须在常规脑电图检查中包括这一程序。
