Bianchin Marino Muxfeldt, Velasco Tonicarlo Rodrigues, Wichert-Ana Lauro, Dos Santos Antonio Carlos, Sakamoto Américo Ceiki
CIREP, Centro de Cirurgia de Epilepsia, Faculdade de Medicina, Universidade de São Paulo, Ribeirão Preto, Brazil; CETER, Centro de Tratamento de Epilepsia Refratária, BRAIN, Basic Research and Advanced Investigations in Neurology, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Brazil.
CIREP, Centro de Cirurgia de Epilepsia, Faculdade de Medicina, Universidade de São Paulo, Ribeirão Preto, Brazil.
Epilepsy Behav. 2017 Nov;76:168-177. doi: 10.1016/j.yebeh.2017.02.030. Epub 2017 Apr 24.
Mesial temporal lobe epilepsy associated with hippocampal sclerosis (MTLE-HS) is one of the most common types of focal epilepsies. This is an epileptic syndrome commonly associated with treatment-resistant seizures, being also the most prevalent form of drug-resistant epilepsy which is treated surgically in most epilepsy surgery centers. Neurocysticercosis (NCC) is one of the most common parasitic infections of the central nervous system, and one of the most common etiological agents of focal epilepsy, affecting millions of patients worldwide. Recently, researchers reported a curious association between MTLE-HS with NCC, but this association remains poorly understood. Some argue that calcified NCC lesions in MTLE-HS patients is only a coincidental finding, since both disorders are prevalent worldwide. However, others suppose there might exist a pathogenic relationship between both disorders and some even suspect that NCC, by acting as an initial precipitating injury (IPI), might cause hippocampal damage and, eventually, MTLE-HS. In this review, we discuss the various reports that examine this association, and suggest possible explanations for why calcified NCC lesions are also observed in patients with MTLE-HS. We also propose mechanisms by which NCC could lead to MTLE-HS. Finally, we discuss the implications of NCC for the treatment of pharmacologically-resistant focal epilepsies in patients with calcified NCC or in patients with MTLE-HS and calcified NCC lesions. We believe that investigations in the relationship between NCC and MTLE-HS might offer further insights into how NCC may trigger epilepsy, and into how MTLE-HS originates. Moreover, observations in patients with drug-resistant epilepsy with both NCC and hippocampal sclerosis may not only aid in the understanding and treatment of patients with MTLE-HS, but also of patients with other forms of dual pathologies aside from NCC. This article is part of a Special Issue titled Neurocysticercosis and Epilepsy.
内侧颞叶癫痫伴海马硬化(MTLE-HS)是最常见的局灶性癫痫类型之一。这是一种通常与难治性癫痫发作相关的癫痫综合征,也是药物难治性癫痫最普遍的形式,在大多数癫痫手术中心都采用手术治疗。神经囊尾蚴病(NCC)是中枢神经系统最常见的寄生虫感染之一,也是局灶性癫痫最常见的病因之一,影响着全球数百万患者。最近,研究人员报告了MTLE-HS与NCC之间一种奇特的关联,但这种关联仍知之甚少。一些人认为MTLE-HS患者的钙化NCC病变只是一个偶然发现,因为这两种疾病在全球都很普遍。然而,其他人则认为这两种疾病之间可能存在致病关系,甚至有人怀疑NCC作为初始促发损伤(IPI),可能会导致海马损伤,并最终导致MTLE-HS。在这篇综述中,我们讨论了研究这种关联的各种报告,并对为什么在MTLE-HS患者中也观察到钙化NCC病变提出了可能的解释。我们还提出了NCC可能导致MTLE-HS的机制。最后,我们讨论了NCC对钙化NCC患者或MTLE-HS及钙化NCC病变患者药物难治性局灶性癫痫治疗的影响。我们相信,对NCC与MTLE-HS之间关系的研究可能会进一步深入了解NCC如何引发癫痫以及MTLE-HS如何起源。此外,对同时患有NCC和海马硬化的药物难治性癫痫患者的观察不仅有助于理解和治疗MTLE-HS患者,也有助于理解和治疗除NCC之外的其他形式双重病变的患者。本文是名为“神经囊尾蚴病与癫痫”的特刊的一部分。