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find Keyword "癫痫发作" 64 results
  • 高频脑电振荡:临床研究综述

    现代脑电图(EEG)技术的进步增强了对经典伯杰频段外,包含重要信息的脑电信号的识别。在癫痫领域,近十年的相关研究主要集中在发作间期>80 Hz 的高频振荡(High frequency oscillations, HFOs)。HFOs 大型临床应用始于癫痫手术术前的评估,近来也开始用于评估癫痫严重程度和监测抗癫痫疗效。该综述总结了 HFOs 在癫痫临床应用的证据,重点介绍了最新的进展。近期大量文献强调了 HFOs 与术后癫痫预后关系,一篇近期的 Meta 分析证实术后癫痫未发作患者 HFOs 切除率高于术后发作患者,利用术后 EEG 中的残留 HFOs 比术前 HFOs 率对癫痫手术预后预测更准确。文章深入讨论了区分生理性和癫痫性 HFOs 的尝试,这可能进一步加强 HFOs 的特异度。如睡眠结构分析表明,在痫灶内外对 HFOs 的偶联有差异。同时,越来越多的证据表明,HFOs 可用于对评估疾病活动度和利用非侵入性 EEG 和脑磁图(MEG)等检查中评估治疗效果。鉴于儿童 EEG 中 HFOs 比例高,这一技术在患儿中有良好的前景。在婴儿痉挛症中经促肾上腺皮质激素治疗后 HFOs 比例下降。在Rolandic区棘波时出现 HFOs 与发作频率相关。耗时的人工评估是过去 HFOs 临床应用的障碍,目前这一问题可由可靠的计算机算法解决。过去十年,HFOs 研究有了长足进展,利用非侵入性手段检测 HFOs 已在大量患者中得到应用。期待未来有多中心、大样本量研究获取长程监测资料,为这一领域提供更多信息。

    Release date:2018-11-21 02:23 Export PDF Favorites Scan
  • 从病例看“自身免疫(相关)性癫痫” 在临床诊治中的挑战

    通过回顾性分析3例代表性临床病例的诊断、治疗及后期随访资料,以揭示目前有关“自身免疫(相关)性癫痫”在诊断和治疗方面存在的挑战和问题,并通过文献复习来探讨合理的应对策略。3例患者中,2例因反复癫痫发作就诊,在临床未明显提示免疫病因的情况下,多次送检相关抗体或启动免疫治疗。另1例患者临床除了癫痫发作,还有其他脑病表现,结合病史和影像所见高度提示免疫病因,最终经抗体检测阳性结果证实。3例患者的诊治经过提示,目前对“自身免疫(相关)性癫痫”诊断和治疗存在一定程度“过度化”情况。“自身免疫”和“癫痫”的关系较为复杂。自身免疫性脑炎中的癫痫发作和慢性自身免疫(相关)性癫痫之间的界限仍不清晰,缺乏可用于实际操作的标准(如生物标记物)是造成后者混乱临床诊疗现状的重要原因。现阶段,理清诸如“急性症状性发作”和“癫痫”等基本概念,仔细全面评估患者,尽早识别出自身免疫性脑炎中已经确定的、具有一定表型特征的综合征,以及使用可指导临床送检抗体或启动免疫治疗的相关评测量表,可帮助临床医生更加合理、有效地诊疗。

    Release date:2022-09-06 03:50 Export PDF Favorites Scan
  • An analysis on clinical characteristics of 36 epileptics with pregnancy

    ObjectiveTo investigate the clinical characteristics of epileptics with pregnancy and then provide reference for standardized management of epileptics with pregnancy. MethodsFrom June 2012 to June 2021, epileptics with pregnancy who delivered in Jinan Central Hospital were selected as the research subjects. The clinical data such as the application of Antiseizure medications (ASMs) during pregnancy, seizure frequency, pregnancy outcomes, delivery ways, offspring feeding ways and the incidence of complications were investigated and analyzed. ResultsAmong 36 epileptics with pregnancy, 20 cases (55.56%) were treated with ASMs alone, 5 cases (13.88%) were treated with combined medication, and 11 cases (30.56%) were treated without ASMs during pregnancy. 15 cases (41.67%) adhered to systematic application of ASMs, 17 cases (47.22%) did not adhere to systematic application of ASMs, and 4 cases (11.11%) had unknown medication history. The frequency of seizures increased in 5 cases, decreased in 7 cases and unchanged in 24 cases during pregnancy. Pregnancy outcomes: full-term delivery in 33 cases (91.67%), preterm delivery in 1 case (2.78%) and abortion in 2 cases (5.56%). Delivery mode: cesarean section in 31 cases (91.18%), vaginal delivery in 3 cases (8.82%). After delivery, 4 cases (11.76%) were fed with milk powder and 30 cases (88.24%) were breast-fed. Complications: There were 6 cases complicated with anemia (16.67%), 5 cases complicated with gestational hypertension (13.89%), 3 cases complicated with gestational diabetes (8.33%), 4 cases complicated with premature rupture of membranes (11.11%), 2 cases complicated with fetal growth restriction (5.56%), 2 cases complicated with oligohydramnios (5.56%), 3 cases complicated with fetal distress (8.33%) and 3 cases complicated with neonatal asphyxia (8.33%). ConclusionsThe proportion of epileptics with pregnancy who were systematically treated with ASMs was low and the seizures were poorly controlled. There is a lack of standardized management for such patients in clinical practice.

    Release date:2022-06-27 04:41 Export PDF Favorites Scan
  • Clinical analysis of phase Ⅰ total corpus callosotomy in adults with intractable epilepsy

    ObjectiveTo investigate the efficacy and safety of the phase Ⅰ corpus callosotomy in the treatment of adult refractory epilepsy. MethodsWe conducted a retrospective analysis of 56 adults with intractable epilepsy in Tangdu Hospital from January 2011 to July 2016.All patients were treated for the phase Ⅰ total corpus callosotomy, followed up 1~5 years after surgery. Results14 cases (25.0%) patients achieved complete seizure free after surgery, 19 cases (33.9%) whose seizures reduced more than 90%, 10 cases (17.9%) reduced between 50%~90%, 7 cases (12.5%) between 30%~50%, 6 cases (10.7%) decreased below 30%; Drop attacks of 47 cases (83.9%) patients disappeared. Postoperative complications occurred in 13 cases(23.2%), and most of them recovered well. 5 cases(8.9%) had long-term sensory disassociation, no serious complications and death. The percentage of patients reporting improvement in quality of life was 67.9%. ConclusionsFor patients with intractable epilepsy who can not undergo focal resection, Ⅰ phase total corpus callosotomy has a certain effect on reducing seizure frequency, eliminating drop attacks, and improving the quality of life.

    Release date:2017-11-27 02:36 Export PDF Favorites Scan
  • Risk factors for seizures in autoimmune encephalitis and assessment of predictive value

    ObjectiveTo analyze the risk factors for seizures in patients with autoimmune encephalitis (AE) and to assess their predictive value for seizures. MethodsSeventy-four patients with AE from the First Affiliated Hospital of Xinjiang Medical University from January 2016 to March 2023 were collected and divided into seizure group (56 cases) and non-seizure group (18 cases), comparing the general clinical information, laboratory tests and imaging examinations and other related data of the two groups. The risk factors for seizures in AE patients were analyzed by multifactorial logistic regression, and their predictive value was assessed by receiver operating characteristic (ROC) curves. ResultsThe seizure group had a higher proportion of acute onset conditions in the underlying demographics compared with the non-seizure group (P<0.05). Laboratory data showed statistically significant differences in neutrophil count, calcitoninogen, lactate dehydrogenase, C-reactive protein, homocysteine, and interleukin-6 compared between the two groups (all P<0.05). Multi-factor logistic regression analysis of the above differential indicators showed that increased C-reactive protein [Odds ratio (OR)=4.621, 95% CI (1.123, 19.011), P=0.034], high homocysteine [OR=12.309, 95CI (2.217, 68.340), P=0.004] and onset of disease [OR=4.918, 95% CI (1.254, 19.228), P=0.022] were risk factors for seizures in AE patients, and the area under the ROC curve for the combination of the three indicators to predict seizures in AE patients was 0.856 [95% CI (0.746, 0.966)], with a sensitivity of 73.2% and a specificity of 83.3%. ConclusionHigh C-reactive protein, high homocysteine and acute onset are independent risk factors for seizures in patients with AE, and the combination of the three indices can better predict seizure status in patients.

    Release date:2023-09-07 11:00 Export PDF Favorites Scan
  • Timing of long term antiepileptic drug therapy for stroke related seizures

    ObjectiveThis study aimed to explore the timing of the long-term antiepileptic drugs (AEDs) therapy in patients with stroke related seizures. MethodsWe enrolled 90 Patients with post-stroke seizures who diagnosed in neurology and epilepsy specialist clinic of Tianjin Medical University General Hospital and followed up for at least 12 months from September 2014 to August 2016. The patients were divided into early-onset seizure group (occurring within 2 weeks of stroke) and late-onset seizure group (occurring after 2 weeks of stroke).The two groups were subdivided into treated and untreated group after the first seizure. ResultsThe patients were followed up for 12~96m (median 20m). 31 patients in ES group, 19 of which in treated group and 12 of which in untreated group. 59 patients in LS group, 36 of which in treated group and 23 of cases in untreated group. The recurrence rate of second seizures occurred in each group and the comparison between the subgroups in the 3rd, 6th, 9th and 12th mouth of follow-up as follows. 1 LS group compared with the group of ES, the recurrence rate of second seizures was high (25.81%~38.71% vs. 49.15%~69.49%), and there was statistical difference (P < 0.05). 2 The recurrence rate of ES in untreated group was lower than that in untreated LS group (16.77% 33.33% vs. 56.52% 73.91%), but only in 3m and 12m the difference was statistically significant (P < 0.05). 3 There was on statistically significant different in ES treated group compared to untreated group, LS treated group compared to untreated group, ES treated group compared to LS treated group (P > 0.05). Both in group of ES and LS, The ratio of seizure recurred patients at different time points during follow-up period was highest at the time of 3m, 3 6m followed, within six months respectively as high as 91.67% and 76.59%. ConclusionOnly one early-onset seizure after stroke can be suspended long-term AEDs treatment, once it recurred that indicates the need for treatment. However, the recurrence rate of late-onset seizure was higher than that of early-onset seizure and it should be given long term AEDs treatment after the first seizure.

    Release date:2017-01-22 09:09 Export PDF Favorites Scan
  • Clinical analysis of diabetes related seizures

    ObjectiveTo investigate the clinical symptom and risk factors of diabetic seizures. MethodsThe clinical data of 44 patients with diabetes related seizures were analyzed with the clinical classification, blood glucose, Na+, Plasma Osmotic Pressure, HbA1c, EEG, brain MR, and the antiepileptic drugs. Results① Diabetic hyperglycemia (DH) related seizures: among the 28 patients, 17 cases were male patients, 11 cases were female patients. The mean age was 51.3 years old. Simple partial seizure without secondary generalized seizures (12/28, 42.8%) was the most common, 8 patients (8/28, 28.6%) showed complex partial seizure, 8 patients (8/28, 28.6%) showed no obvious focal origin generalized tonic-closure seizures. Patients with poor glycemic control (HbA1c > 9%) had significantly higher risk of generalized seizures (46.7% vs. 7.7 %, P < 0.05) (P < 0.05). ② Diabetic ketoa-cidosis or hypertonic state associated seizures: among the 7 patients, 6 cases were male patients, 1case was female patients. The mean age was 45.7 years old, 2 patients (2/7, 28.6%) had generalized tonic-clonic seizure, 2 patients (2/7, 28.6%) showed status epilepticus, 2 patients (2/7, 28.6%) showed local motor seizure, 1 patient (1/7, 14.2%) showed Jackson seizure. ③ Diabetic hypoglycemia related seizures: among the 9 patients, 7 cases were male patients, 2 cases were female patients. The mean age was 45.3 years old.5 patients showed generalized tonic-clonic seizure (5/9, 55.6%), 3 patients had complex partial seizure (3/9, 33.3%), 1 patients had generalized tonic-closure seizures (1/9, 11.1%). ConclusionSimple partial seizure is the most common in patients with diabetic hyperglycemia related seizures; so as to diabetic hypoglycemia and keto-acidosis, generalized seizures are relatively common. HbA1c can be an important risk factor of seizures for patients with hyperglycemia.

    Release date:2017-04-01 08:51 Export PDF Favorites Scan
  • 癫痫发作诱因的研究现状

    通常认为癫痫发作是自发的,但许多研究发现癫痫发作与患者所处环境、自身生理和心理因素存在一定关联。与反射性癫痫的诱发因素不同,这些诱因多是非特异、不明显、多因素共同作用的。虽然癫痫发作的诱因广泛存在,但对其研究较少,国内无相关研究;同时也是临床研究难点,因为临床上很难确定癫痫发作和诱发因素之间的确切关系,不同患者,特别是不同种族的患者,其诱发因素也不尽相同,同一患者可伴有多种诱发因素,很难确定哪种诱因起主要作用,这些均是临床研究的瓶颈。另一方面,癫痫患者及其家属极为关注癫痫的诱发因素,这成为困扰患者及临床医生的难题。然而,了解癫痫发作的诱因不仅有助于预防、减少癫痫发作,也有助于阐明癫痫的病理生理机制,从而更加有效地控制癫痫发作。文章对癫痫发作诱因的研究现状进行综述,以供临床医生参考及进一步研究。

    Release date:2017-07-26 04:06 Export PDF Favorites Scan
  • 化学遗传和光遗传癫痫发作模型研究进展

    动物模型是癫痫机制研究的重要载体,目前广泛应用的是化学性惊厥剂和电刺激模型,这些癫痫模型虽能模拟部分癫痫发作的症状和病理过程,但与人类的癫痫发作仍有很大差异。随着化学遗传和光遗传技术在神经科学中的广泛应用,使得特异性操控不同种类的神经元活动得以实现,已有研究利用光遗传或化学遗传的方法去构建癫痫发作模型,克服化学性惊厥剂和电刺激模型的局限性,便于更好地研究癫痫的神经环路机制。

    Release date:2021-06-24 01:24 Export PDF Favorites Scan
  • 癫痫持续状态的定义与分类——ILAE工作组关于癫痫持续状态分类的报告

    国际抗癫痫联盟(ILAE)分类与术语委员会和流行病学委员会组织了一个工作组来修订癫痫持续状态(Status epilepticus, SE)的概念、定义和分类。提出SE的新定义如下:癫痫持续状态是一种由于癫痫发作终止机制的失败或者导致异常的、延长的(在时间点t1之后)癫痫发作机制的启动而导致的情况。这是一种产生长期后果(在时间点t2之后), 包括神经元死亡、神经元损伤及神经元网络改变的情况, 具体取决于癫痫发作的类型和持续时间。该定义是概念性的, 包括两个操作维度:第一是癫痫发作的时长以及时间点(t1), 超过该时间点的发作应当被认为是"持续的发作活动"; 第二时间点(t2)正在进行的发作活动的时间, 在该时间点之后存在造成长期后果的风险。在抽搐性(强直-阵挛)SE的病例中, 2个时间点(t1为5 min, t2为30 min)是基于动物试验和临床研究的。此证据不完整, 并且有待进一步证实, 所以这些时间点应被认为是目前可用的最佳时间点。其它形式的SE数据尚不可用, 但对它们的了解正在增加, 可以基于科学证据为特定形式的SE定义时间点并整合到定义当中而不改变基本的概念。一个新的SE诊断性分类系统被提出, 将为每个患者的临床诊断、研究、治疗方法提供框架。共有4个轴:①症状学; ②病因学; ③脑电图(EEG)相关; ④年龄。轴1(症状学)列出了SE的不同形式, 分为具有显著运动系统症状、无显著运动系统症状和目前尚不确定的情况(如急性意识障碍伴癫痫样EEG图形)。轴2(病因学)分为已知病因和未知病因。轴3(EEG相关)采用了最新的专家共识推荐, 应用以下EEG指标:图形的名称、形态、部位、时间相关特点、调节和干预的影响。轴4将年龄组分为新生儿、婴幼儿、儿童、青少年、成年和老年。

    Release date:2016-10-02 06:51 Export PDF Favorites Scan
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