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1、AnalysisoftheEEGofepilepticpatientsofwaveforms（分析癫痫病人脑电图的波形表现） 1，Spikes:spikessuddentransientEEGchangestheobviousprominentinthebackground,isepileptiformwaveformisoneofthemostcharacteristicperformance.Negativephase,andalsofornormal-phaseortwo-phase,three-phase.Its
2、volatilityvaryinsize,andmoreinmorethan100microvolts.50microvoltscalledshortspikesorspikes.Cycleinlessthan80milliseconds.Spikespromptedthebrainirritatinglesions.Spikesinslow-wavebackground,oftenrevealfromprimaryepilepticfocusornearthearea,whilethenormalbackgroundsp
3、ikes,oftenlowervolatility,longcycle,frommoredistantlesionsspread.TheEEGthethespikesgraduallyincreasingphenomenonortheformationofspinesrhythm,oftenindicatesimpendingclinicalonset.Spikesseeninvarioustypesofepilepsy. 1、棘波：棘波为突发性的一过性脑电图变化，明显突出于背景，乃痫样波形是最具特征性的表现之一。多为负
4、相，亦可为正相或双相、三相。其波幅大小各不相同，多在100微伏以上。50微伏以下者称为短棘波或小棘波。周期在80毫秒以内。棘波的出现提示脑部有刺激性病灶。若在慢波背景上出现的棘波，常揭示来自原发癫痫灶或其附近区域，而在正常背景上出现棘波，波幅常较低，周期长，多由远处病灶传播而来。若在脑电图描记中出现棘波逐渐增多现象或形成棘节律，常预示即将出现临床发作。棘波可见于各型癫痫。 2,sharpwaves:sharpwavesuddentransientEEGchanges,samemeaningwithspikes,isthe
5、synchronousfiringofneurons,oneofthecommonepileptiformwavescharacteristicwaveform.IncreasingbranchedspikesSimilar,moresteeplydescendingbranchmoderate,itsperiodofbetween80to200milliseconds,andthevolatilityof100to200micro-volts,andoftennegativephase.Dischargeitfromth
6、emajorityofneuronsinthelargeroftheepilepticfocusspikesincompletesynchronization,orforlargerlesionsinthelargenumberofnervecellsynchronizationdischargerecoverydelaycanalsolesionsincorticalordeepspikessubcorticallesionsfardistancepropagation,prolongedspikestime.Canbe
7、foundinvarioustypesofepilepsyinterictalEEG. 2、尖波：尖波为突发性一过性脑电图变化，意义与棘波相同，乃神经元同步放电的结果，为常见的痫样波的特征波形之一。其上升支与棘波相似，较陡直，而下降支较缓，其周期在80～200毫秒之间，波幅100～200微伏，常为负相。它由较大的癫痫灶中多数神经元棘波放电的不完全同步，或为较大的病灶中大量神经元同步性放电恢复的延迟，也可以是病灶在皮质深部或皮质下棘波灶远距离传播，为棘波时间上的延长。可见于各型癫痫发作间期脑电图中。 3,spike-sl
8、owwavecomplex:spike-slowwavecomplexspikesandcycleconsistingof200to500millisecondsslowwave,arenegativewave,positivewavesappearextremelyrare.Volatilityisg
