From the Department of Neurology (Y.S.), The Affiliated Hospital of Qingdao University, Qingdao, China; Department of Neurology (Y.S.), Xuanwu Hospital, Capital Medical University, Beijing, China; Departments of Neurology (Y.S., P.P., M.K.T., T.J.O., P.K.) and Medicine (P.P., Z.C., T.J.O., P.K.), The Royal Melbourne Hospital, The University of Melbourne, Victoria; Department of Medicine (U.S., W.D.), St. Vincent's Hospital Melbourne, The University of Melbourne, Victoria; Department of Medicine, The School of Clinical Sciences at Monash Health (U.S.), and Departments of Neuroscience, The Central Clinical School (P.P., T.J.O., P.K.), Monash University, Victoria; and Department of Neurology (P.P., T.J.O., P.K.), The Alfred Hospital, Victoria, Australia.
Neurology. 2018 Nov 6;91(19):e1822-e1830. doi: 10.1212/WNL.0000000000006472. Epub 2018 Oct 12.
To identify clinical and EEG biomarkers of drug resistance in adults with idiopathic generalized epilepsy.
We conducted a case-control study consisting of a discovery cohort and a replication cohort independently assessed at 2 different centers. In each center, patients with the idiopathic generalized epilepsy phenotype and generalized spike-wave discharges on EEG were classified as drug-resistant or drug-responsive. EEG changes were classified into predefined patterns and compared between the 2 groups in the discovery cohort. Factors associated with drug resistance in multivariable analysis were tested in the replication cohort.
The discovery cohort included 85 patients (29% drug-resistant and 71% drug-responsive). Their median age at assessment was 32 years and 50.6% were female. Multivariable analysis showed that higher number of seizure types ever experienced (3 vs 1: odds ratio [OR] = 31.1, 95% confidence interval [CI]: 4.5-214, < 0.001; 3 vs 2: OR = 14.6, 95% CI: 2.3-93.1, = 0.004) and generalized polyspike train (burst of generalized rhythmic spikes lasting less than 1 second) during sleep were associated with drug resistance (OR = 10.8, 95% CI: 2.4-49.4, = 0.002). When these factors were tested in the replication cohort of 80 patients (27.5% drug-resistant and 72.5% drug-responsive; 71.3% female; median age 27.5 years), the proportion of patients with generalized polyspike train during sleep was also higher in the drug-resistant group (OR = 4.0, 95% CI: 1.35-11.8, = 0.012).
Generalized polyspike train during sleep may be an EEG biomarker for drug resistance in adults with idiopathic generalized epilepsy.
确定特发性全面性癫痫成人患者中耐药的临床和 EEG 生物标志物。
我们进行了一项病例对照研究,包括一个发现队列和一个在 2 个不同中心独立评估的复制队列。在每个中心,具有特发性全面性癫痫表型和 EEG 上广泛棘波放电的患者被分类为耐药或反应性。将 EEG 变化分类为预定义的模式,并在发现队列中比较两组之间的差异。在复制队列中测试多变量分析中与耐药相关的因素。
发现队列包括 85 名患者(29%耐药,71%反应性)。他们评估时的中位年龄为 32 岁,50.6%为女性。多变量分析显示,既往经历的发作类型数量较多(3 种比 1 种:比值比 [OR] = 31.1,95%置信区间 [CI]:4.5-214, < 0.001;3 种比 2 种:OR = 14.6,95% CI:2.3-93.1, = 0.004)和睡眠期间的广泛多棘波串(持续不到 1 秒的广泛节律性棘波爆发)与耐药相关(OR = 10.8,95% CI:2.4-49.4, = 0.002)。当这些因素在 80 名患者的复制队列中进行测试时(27.5%耐药,72.5%反应性;71.3%女性;中位年龄 27.5 岁),睡眠期间存在广泛多棘波串的患者在耐药组中比例也更高(OR = 4.0,95% CI:1.35-11.8, = 0.012)。
睡眠期间的广泛多棘波串可能是特发性全面性癫痫成人患者耐药的 EEG 生物标志物。