Journals / Nöropsikiyatri Arşivi / 2016 / Cilt: 53 - Sayı: 3

Bilateral ve Unilateral Hipokampal Sklerozda Kognitif Parametrelerin Karşılaştırılması

Comparison of Cognitive Parameters between Bilateral and Unilateral Hippocampal Sclerosis

Pages
199–204
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Retrieval failure, rather than a total recall problem, in the memory of the patients resembles a more diffuse involvement not only limited to limbic structures.

📌 3 Key Takeaways

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Objective & Hypothesis:Introduction: Recent studies showed that hippocampal sclerosis (HS) patients with unilateral involvement had more diffuse cognitive impairment than expected.
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Key Findings & Data:Methods: Consecutive patients, diagnosed with epilepsy, who fulfilled two major magnetic resonance imaging (MRI) criteria (T1 atrophy and T2- FLAIR hyperintensity) for HS were included.
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Conclusion & Impact:Retrieval failure, rather than a total recall problem, in the memory of the patients resembles a more diffuse involvement not only limited to limbic structures.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Introduction: Recent studies showed that hippocampal sclerosis (HS) patients with unilateral involvement had more diffuse cognitive impairment than expected. Therefore, we aimed to compare the cognitive profiles of bilateral HS (BHS) patients with unilateral HS (UHS) patients. Methods: Consecutive patients, diagnosed with epilepsy, who fulfilled two major magnetic resonance imaging (MRI) criteria (T1 atrophy and T2- FLAIR hyperintensity) for HS were included. Standard neuro-psychological test (NPT) battery consisted of the Turkish version of 15-word verbal memory processes test, Wechsler memory scale visual reproduction subtest, forward and backward digit span, phonemic and semantic fluency, and Stroop test were applied; and the groups with right HS, left HS, and bilateral HS were compared statistically. Results: Ninety-one patients, completing the NPT (34 males, 57 females)-16 with BHS, 36 with right HS, and 39 with left HS-were included. Six out of 43 operated patients had BHS. There were no significant differences in education and handedness of the groups. Even though NPT performances of the BHS group were found to be poor compared to UHS subgroups, this was beyond statistical significance. Comparison of BHS with the right HS group showed a significant difference in the learning score of the Verbal Memory Processes Test, but recognition scores were found to be similar in all groups. Compared to the BHS group, both right and left HS groups revealed a significant difference in delayed recall score of the Verbal Memory Processes Test. Although there were no significant differences in the postoperative parameters of the BHS group, UHS subgroups had deficits in many postoperative parameters. Conclusion: Our study revealed that bilateral involvement of the hippocampi was correlated with a poor cognitive performance. Retrieval failure, rather than a total recall problem, in the memory of the patients resembles a more diffuse involvement not only limited to limbic structures.

Özet

Amaç: Son yıllardaki çalışmalar unilateral hipokampal sklerozlu (HS) hastalarda kognitif tutulumun bilindiğinden daha yaygın olduğunu göstermektedir. Amacımız bilateral hipokampal sklerozlu hastalarla unilateral hipokampal sklerozlu hastaların kognitif tutulumlarını karşılaştırmaktır. Yöntem: Klinik olarak epilepsi tanısı almış, MRG kriterlerine (T1'de atrofi ve T2-FLAIR'de hiperintensite) uygun şekilde HS saptanmış ardışık hastalar çalışmaya dahil edildi. Sözel bellek süreçleri testi, Weschsler bellek testinin alt testi olan görsel bellek testi, ileri ve geri sayı menzili, fonemik ve semantik akıcılık ve Stroop testlerini içeren standart nöropsikolojik test (NPT) bataryası uygulanmış olan sağ HS, sol HS ve bilateral HS gruplarında sonuçlar istatistiksel olarak karşılaştırıldı. Bulgular: NPT'leri tamamlayabilen 16 bilateral HS, 36 sağ HS ve 39 sol HS olmak üzere toplam 91 hasta (34 erkek, 57 kadın) dahil edildi. Ameliyat olmuş 43 hastanın 6 'sı bilateral HS'ydi. Gruplararası el tercihleri ve eğitim durumlarında istatistiksel farklılık yoktu. Bilateral grubun NPT performansları unilateral gruplara göre daha düşük olması- na rağmen istatistiksel olarak anlamlı değildi. Bilateral HS'li hastaların sağ HS ile kıyaslanmasında sözel bellek süreçleri öğrenme skorunda istatistiksel olarak anlamlı fark olmasına rağmen tanımada fark yoktu. Sağ ve sol HS grubunda bilateral HS ile kıyaslandığında sözel bellek süreçleri testlerinde gecikmeli geri çağırma skorları anlamlı olarak dü- şüktü. Preoperatif ile postoperatif bulgular kıyaslandığında bilateral grupta istatistiksel anlamlı fark yokken, unilateral grupta birçok alanda bozulma dikkati çekti. Sonuç: Çalışmamız bilateral hipokampal etkilenmenin düşük kognitif performansla ilişkili olduğunu göstermiştir. Hatırlama probleminden çok geri getirme eksikliği şeklindeki kognitif tutulum limbik yapılarla sınırlı kalmayan daha yaygın bir etkilenmeyi düşündürmüştür.

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Cite This Article

YAVUZ, E. N. V., BİLGİÇ, B., MATUR, Z., BEBEK, N., GÜRSES, C., GÖKYİĞİT, A., ÖKTEM, Ö., BAYKAN, B. (2016). Bilateral ve Unilateral Hipokampal Sklerozda Kognitif Parametrelerin Karşılaştırılması. Nöropsikiyatri Arşivi, Cilt: 53 - Sayı: 3, 199–204. https://ajindex.com/articles/292412

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References (3)

  1. Helmstaedter C, Elger CE. Chronic temporal lobe epilepsy: a neurodevelop- mental or progressively dementing disease? Brain 2009; 132:2822-2830.
  2. Jeyaraj MK, Menon RN, Justus S, Alexander A, Sarma PS, Radhakrishnan K. A critical evaluation of the lateralizing significance of material-specific me- mory deficits in patients with mesial temporal lobe epilepsy with hippocampal sclerosis. Epilepsy Behav 2013; 28:460-466. [CrossRef] Malmgren K, Thom M. Hippocampal sclerosis--origins and imaging. Epilepsia 2012; 53(Suppl 4):19-33.
  3. Li H, Fan W, Yang J, Song S, Liu Y, Lei P, Shrestha L, Mella G, Chen W, Xu H. Asymmetry in cross-hippocampal connectivity in unilateral mesial temporal lobe epilepsy. Epilepsy Res 2015; 118:14-21. [CrossRef] Trenerry MR, Jack CR Jr, Cascino GD, Sharbrough FW, So EL. Bilateral magne- tic resonance imaging-determined hippocampal atrophy and verbal memory before and after temporal lobectomy. Epilepsia 1996; 37:526-533. [CrossRef] Castro LH, Silva LC, Adda CC, Banaskiwitz NH, Xavier AB, Jorge CL, Valerio RM, Nitrini R. Low prevalence but high specificity of material-specific memory impairment in epilepsy associated with hippocampal sclerosis. Epilepsia 2013; 54:1735-1742. [CrossRef] Malter MP, Tschampa HJ, Helmstaedter C, Urbach H, von Lehe M, Becker A, Clusmann H, Elger CE, Bien CG. Outcome after epilepsy surgery in patients with MRI features of bilateral ammon's horn sclerosis. Epilepsy Res 2013; 105:150-157. [CrossRef] Vogt VL, Witt JA, Malter MP, Schoene-Bake JC, von Lehe M, Elger CE, Helm- staedter C.Neuropsychological outcome after epilepsy surgery in patients with bilateral Ammon's horn sclerosis. J Neurosurg 2014; 121:1247-1256. [CrossRef] Coan AC, Kubota B, Bergo FP, Campos BM, Cendes F. 3T MRI quantification of hippocampal volume and signal in mesial temporal lobe epilepsy improves detection of hippocampal sclerosis. AJNR Am J Neuroradiol 2014; 35:77-83. [CrossRef] Cendes F, Andermann F, Gloor P, Evans A, Jones-Gotman M, Watson C, Melanson D, Olivier A, Peters T, Lopes-Cendes I. MRI volumetric measure- ment of amygdala and hippocampus in temporal lobe epilepsy. Neurology 1993; 43:719-725. [CrossRef] Berg AT, Berkovic SF, Brodie MJ, Buchhalter J, Cross JH, van Emde Boas W, Engel J, French J, Glauser TA, Mathern GW, Moshé SL, Nordli D, Plouin P, Scheffer IE. Revised terminology and concepts for organization of seizures and epilepsies: report of the ILAE Commission on Classification and Termi- nology, 2005-2009. Epilepsia 2010; 51:676-