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难治性癫痫术前评估及显微外科治疗研究

Surgical Therapeutic Strategies of Intractable Epilepsy

【作者】 单峤

【导师】 张志强;

【作者基本信息】 郑州大学 , 外科学, 2006, 硕士

【摘要】 目的:分析难治性癫痫的临床特点,讨论如何改进手术方法并进行术前评估,提高手术疗效,控制难治性癫痫患者癫痫发作,改善其生活质量,减少并发症。方法:回顾性分析5年来显微手术治疗的24例难治性癫痫病例,前瞻性研究4例手术治疗的难治性癫痫病例,共计28例。其中13例采用联合手术方法,所有病例手术均在皮层脑电图监测下进行。1、术前评估患者的日常生活能力量表(ADL),评定结果总分<16分为完全正常,>16分提示有不同程度的功能下降,单项分1分为正常,2~4分为功能下降,凡二项或以上≥3分,或总分≥22分提示有明显功能障碍。2、根据术前综合脑电图定位结果大骨瓣开颅,皮层脑电图反复核实后,分别采用多种手术方法联合。(1)单纯前颞叶切除(2)前颞叶切除+软脑膜下横切+蛛网膜粘连松解(3)癫痫灶切除(4)痫灶切除+MST+粘连松解(5)蛛网膜囊肿切除+MST(6)功能区MST皮层(7)额叶痫灶切除+MST+胼胝体前部切开(8)枕叶痫灶切除+胼胝体后部切开。(注:本文将功能区皮层低功率热灼归类到MST)3、术后6个月再次评估患者的日常生活能力量表(ADL)评分,记录癫痫的发作频率(次/月),记录患者的服药种类。术前数据代表药物治疗结果,术后数据代表手术治疗结果,数据以均数±标准差表示,采用SPSS10.0软件进行分析,二者的均数进行t检验,构成比的比较用X~2检验。结果:28例病人无手术死亡及手术后严重并发症,2例有一过性运动性失语,1例命名性失语,经3月治疗后好转。术后服药种类明显减少(P<0.01)医嘱服药1年半以上。所有病例随访6个月到5年,发作频率比术前明显减少(P<0.01),ADL评分比术前降低(P<0.05)。根据谭启富提出的癫痫外科疗效评定标准,本组18例无癫痫发作(10例已停药),5例明显好转(癫痫发作频率减少≥75%),3例显效(癫痫发作频率减少50~75%)2例无变化(癫痫发作频率减少≤25%),有效率92.8%。结论:1.术前就癫痫患者外科手术指征进行评估:①用常规药物治疗2年以上失败的患者;②发作影响患者的日常生活、工作质量;③能承受外科手术的危害性;④有局限性发作的证据。2.外科手术的禁忌症:①慢性精神病状态。②智商低于70的患者;但这种病人不是胼胝体切除术的禁忌。③原发性全面性发作和儿童良性颞中央区癫痫。③代谢或弥漫性脑病以及全身性疾病,如肝脏或肾脏疾病引起的癫痫发作。④年龄55岁以上的病人,除了原发病灶切除术外,不宜做癫痫手术。3.本组病例多数病程较长,以至异常脑电活动范围扩大,临床发作类型多样化,术中遇到的情况也比较复杂,所以我们采用多种术式结合,采用多种术式结合对提高疗效、减少并发症及后遗症很有益。4.功能区处理:热灼大脑皮层浅表横行纤维治疗功能区顽固性癫痫有其独特的技术等优势。5.手术成功的关键详细:精确定位是手术成功的关键,在PET、脑磁图尚未普及情况下,应当以EEG为最基本的检查手段,反复核对,结合临床表现,CT,MRI,SPECT等辅助检查综合考虑。此步骤在开展癫痫手术初期应当看作比手术操作更为重要。总之,癫痫手术治疗不仅能控制发作、减少抗癫痫药的服用和副作用,还可以改善难治性癫痫患者的生活质量,远期疗效还有待更多的病例积累和长期跟踪观察。

【Abstract】 Objective To analyze the clinical features of intractable epilepsy (IE),and discuss the approach how to improve surgical skills and reduce the operative mortality and raise surgery curative effect.Methods 24 patients with IE treated of microsurgery in last 5 years were analyzed retrospectively, and 4 others cases of IE of microsurgery were analyzed prospectively. 13 of them underwent combined operations. All of the operations were performed with the guidance of intraoperative electrocorticography. The evaluation of ADL and registrations of frequency of IE paroxysm and the kinds of administration drug before and 6 months after surgery were analyze .The data before surgery delegate the cure effect of drug therapy and the data after operation delegate the effect of surgery. The data were expressed by mean±standard deviation. All data were analyzed by the software of SPSS 10.0.The various means compared by t test and proportion compared by Chi-square testResults All the patients were followed-up for 6 months to 5 years after operation . The kinds of drug were reduced significantly . The frequency of IE paroxysm reduce significantly (P<0.01) and ADL reduced significantly (P<0.05).In 18 patients were free from seizure (Engel’s class I ),the seizure frequency decreased significantly (Engel’s class II and III) in 8 patients, and unchanged (Engel’s class IV) in 2 patients. No death or disability occur in all patients.Conclusions Epilepsy surgery can not only control seizure, but also decrease the quantity and side-effect of anti-epilepsy drugs and improve quality of life of patients with IE. The outcome effectiveness need further confirmation of larger series and long-term follow-up.

  • 【网络出版投稿人】 郑州大学
  • 【网络出版年期】2007年 05期
  • 【分类号】R651.1
  • 【下载频次】97
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