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目的：探讨蝶骨电极加剥夺睡眠脑电图（ＥＥＧ） 对癫癎诊断的价值。方法：对１１０ 例癫癎患者进行常规电极和蝶骨电极描记，如无癎样放电，再作蝶骨电极加过度换气和蝶骨电极加剥夺睡眠，并与常规电极作比较。结果：常规电极癎样放电检出率为３８－１ ％ ，单纯蝶骨电极，蝶骨电极加过度换气和蝶骨电极加剥夺睡眠癎样放电检出率比常规电极分别提高１１ ％ （χ２ ＝ ２ ．６ ，Ｐ＞ ０－０５） ，１９－２ ％ （χ２ ＝８ ．１１ ，Ｐ＜ ０－０１） 和３４－２ ％ （χ２ ＝ １７ ．２２ ，Ｐ＜ ０－０１） 。结论：在上述几种方法中，以蝶骨电极加剥夺睡眠癎样放电检出率最高，故对癫癎诊断的价值最大。
Objective: To investigate the value of sphenoid electrode plus sleep deprivation electroencephalogram (EEG) in the diagnosis of epilepsy. Methods: 110 patients with epilepsy were performed conventional electrode and sphenoid electrode tracing, such as non-sinusoidal discharge, then spared with sphenoid electrode plus hyperventilation and sphenoid electrode plus sleep deprivation, and compared with conventional electrodes. Results: The detection rate of conventional electrodes was 38-1%. The detection rate of pure sphenoid electrode, sphenoid electrode plus hyperventilation and sphenoid electrode plus sleep deprivation increased by 11% (χ2 = 2 .6, P> 0-05), 19-2% (χ2 = 8.111, P <0-01) and 34-2% (χ2 = 17.22, P <0-01). Conclusion: Among the above methods, the highest detection rate of epilepsy is the highest detection rate of spina bifida plus sleep deprivation.