Journals / Nöropsikiyatri Arşivi / 2011 / Cilt: 48 - Sayı: 4

Volumetry of the thalamus in idiopathic generalized epilepsy

İdyopatik jeneralize epilepsili olgularda talamometri

Pages
243–248
DOI
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C o n c lu si o n : These results support the hypothesis that thalamus plays an important role in the pathophysiology of the absence seizures. (Archives of Neuropsychiatry 2011; 48: 243-8)

📌 3 Key Takeaways

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Objective & Hypothesis:O b jec ti ve: Studies aiming to explain the pathophysiology of idiopathic generalized epilepsy (IGE) indicate that the epileptic activity arises from thalamocortical circuitry.
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Key Findings & Data:Met hods: We investigated thirty-one patients followed up by the Department of Neurology - Epilepsy Center at Istanbul University, Istanbul Faculty of Medicine with the diagnosis of IGE according to the International League Against Epilepsy (ILAE) classification and 15 age- and sex-matched healthy volunteers.
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Conclusion & Impact:C o n c lu si o n : These results support the hypothesis that thalamus plays an important role in the pathophysiology of the absence seizures. (Archives of Neuropsychiatry 2011; 48: 243-8)
🔬Design:Research Article
📍Scope:2011 Verileri
⚙️Variables:Domain Parameters

Abstract

O b jec ti ve: Studies aiming to explain the pathophysiology of idiopathic generalized epilepsy (IGE) indicate that the epileptic activity arises from thalamocortical circuitry. The aims of this study were to explore the pathophysiology of IGE using the thalamic volume measurements and to compare the measurement results between subsyndromes of IGE, between different seizure types and between the presence/absence of absence status epilepticus and, finally, to evaluate the effect of the possible differences on pathogenetic mechanisms of IGE. Met hods: We investigated thirty-one patients followed up by the Department of Neurology - Epilepsy Center at Istanbul University, Istanbul Faculty of Medicine with the diagnosis of IGE according to the International League Against Epilepsy (ILAE) classification and 15 age- and sex-matched healthy volunteers. The borders of the thalamus and total brain were marked manually by using ‘DicomWorks software’ in coronal sections and, volumetric analysis was done. The values in the patients with IGE were compared with those in the normal controls using appropriate statistical tests. Re sults: There were no statistically significant differences between the left, right and total thalamic volumes in relation to the total brain volume in patients and controls. However, thalamic volume was found to be increased in IGE patients with absence seizures in comparison to those without absences. C o n c lu si o n : These results support the hypothesis that thalamus plays an important role in the pathophysiology of the absence seizures. (Archives of Neuropsychiatry 2011; 48: 243-8)

Özet

Amaç: İdyopatik jeneralize epilepsinin (İJE) patofizyolojisini açıklamak amacıyla yapılan çalışmalar epileptik aktivitenin talamokortikal devreden kaynaklandığına işaret etmektedir. Bu çalışmada talamus hacim ölçümleri yapılarak İJE’nin etyopatogenezini aydınlatmaya yönelik bilgiler edinmek, ayrıca İJE altsendromlarında, farklı nöbet tiplerinde ve absans status epileptikus geçirenlerde elde edilen bulguların karşılaştırılması ve saptanan farkların bu patogenetik süreçle ilişkisini değerlendirmek amaçlanmıştır. Yön­tem­ler: İstanbul Üniversitesi, İstanbul Tıp Fakültesi, Nöroloji Anabilim Dalı, Epilepsi polikliniğinden izlenmekte olan olgular içinden uluslararası sınıflamaya (ILAE) göre İJE tanısı almış 31 olgu ve yaş olarak benzer 15 sağlıklı gönüllü çalışmaya alınmıştır. Talamus ve total beyin sınırları ‘DicomWorks software kullanılarak koronal kesitlerde elle işaretlenmiş ve hacim ölçümü yapılmıştır. Sonuçlar uygun istatistiksel testler kullanılarak normallerle kıyaslanmıştır. Bul­gu­lar: Hastaların sağ, sol talamus ve total talamus volüm ölçümlerinin total beyin hacmine oranı normal kontrollerle kıyaslandığında istatistiksel olarak anlamlı fark bulunmamıştır. İJE’lilerde absans nöbeti olan hastalarda olmayanlara oranla talamusun hacminin büyük olduğu saptanmıştır. So­nuç: Bu bulgular özellikle absans nöbetlerinin patofizyolojisinde talamusun önemli rol aldığı hipotezini desteklemektedir.

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Cite This Article

AYDIN, Z. Ö., TERZİBAŞIOĞLU, E., SENCER, S., YAPICI, Z., BAYKAN, B. (2011). Volumetry of the thalamus in idiopathic generalized epilepsy. Nöropsikiyatri Arşivi, Cilt: 48 - Sayı: 4, 243–248. https://ajindex.com/articles/292686

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