JNNP :缺氧后昏迷和难治性癫痫持续状态后成人慢性癫痫的长期风险:一项回顾性队列研究

2020-12-26 MedSci原创 MedSci原创

心脏骤停后昏迷的患者中有20%-30%出现难治性癫痫持续状态(RSE),但在多模式预后指标良好的患者中,对RSE进行积极和长期的治疗可能会导致40%-50%的存活率和良好的神经系统结果。然而,关于心脏

心脏骤停后昏迷的患者中有20%-30%出现难治性癫痫持续状态(RSE),但在多模式预后指标良好的患者中,对RSE进行积极和长期的治疗可能会导致40%-50%的存活率和良好的神经系统结果。然而,关于心脏骤停后的慢性癫痫的数据很少,这可能严重损害幸存者的生活质量。目前尚不清楚这些患者是否有癫痫的风险,以及在急性期出现RSE是否会增加这种风险。本文调查了一组心脏骤停幸存者的癫痫风险。

这是一项回顾性队列研究,由意大利蒙扎圣杰拉尔多医院伦理委员会批准,基于先前的前瞻性研究。 2011年1月至2016年5月,连续有心脏骤停的成人患者接受低温(34°C)治疗,昏迷时间>24小时,在事件发生后24小时内开始接受简化的4通道连续脑电图监测(cEEG)。根据研究方案,如果检测到癫痫持续状态,不管临床表现如何,患者都会接受积极的标准化治疗。所有病例均采用多模式预后分析方法。值得注意的是,没有患者因主动减少呼吸支持或血管活性药物而退出治疗。在事件发生后的前5天,癫痫专家通过cEEG监测确定预后脑电图模式。脑电图特征根据ACNS的反应性、连续性和一般性周期性放电(GPD)分类和非惊厥性癫痫持续状态的萨尔茨堡标准进行编码。尽管服用了苯二氮卓类药物和首次静脉注射抗液化药物(ASD),对所有病例的癫痫持续状态(RSE)难以见效。

根据四种相互排斥的脑电图模式之一对患者进行分组:良性模式:连续和/或反应性脑电图背景,无癫痫持续状态或GPDs发作。RSE模式:任何时候RSE,无GPD,独立于EEG背景。GPDs模式:GPDs在任何时候,独立于脑电图背景或RSE。恶性非癫癎样改变:EEG背景持续不连续、不活跃,无SE或GPD。对于所有存活至少6个月的患者,在2019年11月通过电话联系和医疗记录回顾来评估结果:(1)重症监护病房(ICU)出院后出现新的癫痫发作;(2)癫痫的新诊断;(3)心脏骤停前的癫痫病史,(4) 使用ASD和(5)大脑功能分类(CPC)评分时的电话。数据用SPSS统计软件(V.23)处理,并以分类变量的频率和百分比,或非正态分布连续变量的中位数和IQRs来报告。

在随访期间,只有1名患者(1.5%)在急性期出现RSE,发展为慢性局灶性癫痫和兰斯-亚当斯肌阵挛。没有良性脑电图的病人出现新的癫痫发作。对于那些有GPDs和恶性非癫痫样EEG模式的患者,由于95%的患者在6个月内死亡,其余5%失去随访,因此无法获得长期的癫痫结果。两名患者(3%)接受长期ASD治疗,均属于RSE模式组:一名患者患有癫痫,另一名患者在没有任何新的癫痫发作的情况下继续进行ASD单药治疗。一名患者在心脏骤停前接受ASD单一疗法治疗癫痫;值得注意的是,这名患者在使用相同的ASD剂量时,出院后没有出现进一步的癫痫发作。

癫痫持续状态经常出现在心脏骤停后的最初几天,尤其是在昏迷期间。然而,关于慢性癫痫的长期风险的数据有限。系统研究描述了对32名缺氧后患者的随访:57%的既往RSE患者和17%的无RSE患者发生癫痫。 然而,它提到了1965年至1984年,当时还没有使用温度管理、神经监测和积极的神经治疗方案。相反,我们的队列由cEEG严格监控,并采用标准化的攻击性方案进行治疗。

值得注意的是,我们队列中的大多数患者(97%)在出院后停止了ASD,这表明对于大多数长期存活的患者来说,延长ASD治疗可能是不必要的,即使他们在急性期表现出癫痫持续状态。这项研究有局限性。由于在我们的队列中发现了一个新的癫痫发作的病例,神经影像学上的弥漫性或局灶性病变或其他可能影响心脏骤停患者癫痫风险的变量无法评估;同样,在这种情况下,生存率分析不被视为有用的信息。此外,我们不能排除随访时间较短(至少40个月)的患者在长期内会出现癫痫发作。然而,与其他病因急性损伤的复发率类似,在事件发生后的头几年内最高,平均70个月的随访时间可能是可以接受的。最后,值得考虑的是,几乎所有具有最严重EEG模式(GPDs和“恶性”非癫痫样)的患者都在6个月内死亡;确定癫痫发病率和长期ASDs治疗在这些高早期死亡率组中的作用似乎实际意义有限。即使在急性期出现难治性癫痫持续状态的情况下,心脏骤停后长期存活的患者癫痫的发生率也很低。

Tinti LBeretta SCoppo A, et al Long-term risk of chronic epilepsy in adults after post-anoxic coma and refractory status epilepticus: a retrospective cohort study

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    2020-12-29 Jessie Zhang

    即使在急性期出现难治性癫痫持续状态的情况下,心脏骤停后长期存活的患者癫痫的发生率也很低。

    0

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    2020-12-28 wgx307
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    2020-12-28 freve
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    2020-12-27 医路顺丰

    很好的文章,学习了

    0

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