A case of developmental and epileptic encephalopathy with spike-and-wave activation in sleep with structural etiology treated with corpus callosotomy

Haruka Nakata , Kiyohiro Kim , Shu Hamada , Kengo Kora , Ichiro Kuki , Noritsugu Kunihiro , Takehiro Uda , Toshiro Maihara
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Abstract

Background

Developmental and epileptic encephalopathy with spike-and-wave activation in sleep (DEE-SWAS) is often refractory to antiseizure medications and steroids, and a longer disease duration is associated with intellectual disabilities. Surgical treatment is sometimes performed; however, there have been few reports of corpus callosotomy.

Case presentation

The patient was a 5-year-old girl; at 16 months of age, she experienced seizures that began in her left upper limb and then spread throughout her body. Since then, she has had recurrent episodes. Electroencephalography (EEG) revealed spike-and-wave discharges in the right occipital region. Brain magnetic resonance imaging showed right ventricular enlargement and hemosiderin deposition in the right thalamus. Around the age of 3, she became hyperactive and unable to speak. At 4 years of age, atypical absence seizures appeared and EEG during sleep showed continuous generalized spike-and-wave complexes, leading to the diagnosis of DEE-SWAS. At the time of diagnosis, her developmental quotient (DQ) was 51. However, despite medical treatment, including adrenocorticotropic hormone therapy, she was resistant to these interventions, and her DQ decreased to 39 within approximately 1 year. A total corpus callosotomy was performed at the age of 5 years and 5 months. Postoperatively, epileptic seizures were controlled and the epileptiform discharges was lateralized to the right hemisphere. Additionally, developmental improvements were observed, including increased speech and the ability to anticipate the need for defecation.

Conclusion

Early corpus callosotomy can improve seizures and intellectual outcomes in patients with drug-resistant DEE-SWAS with focal lesions that can take time to resolve spontaneously.
结构性病因伴睡眠尖波激活的发展性癫痫性脑病行胼胝体切开术治疗1例
发育性和癫痫性脑病伴睡眠峰波激活(DEE-SWAS)通常对抗癫痫药物和类固醇难以治疗,且病程较长与智力残疾有关。有时进行手术治疗;然而,胼胝体切开术的报道很少。患者为一名5岁女童;在16个月大的时候,她经历了癫痫发作,从左上肢开始,然后扩散到全身。从那时起,她就反复发作。脑电图显示右侧枕区有峰波放电。脑磁共振成像显示右心室增大,右丘脑含铁血黄素沉积。大约在3岁时,她变得过度活跃,无法说话。4岁时出现非典型失神性癫痫发作,睡眠时脑电图显示连续广泛性峰波复合,诊断为DEE-SWAS。在诊断时,她的发展商(DQ)为51。然而,尽管进行了药物治疗,包括促肾上腺皮质激素治疗,但她对这些干预措施产生了耐药性,她的DQ在大约1年内降至39。在5岁零5个月时进行了全胼胝体切开术。术后癫痫发作得到控制,癫痫样放电向右半球偏侧。此外,还观察到发育方面的改善,包括言语能力的增强和预测排便需求的能力。结论早期胼胝体切开术可改善局灶性病变需时自行消退的耐药DEE-SWAS患者的癫痫发作和智力结局。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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