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Cognitive and behavioral effects of lamotrigine and carbamazepine monotherapy in patients with newly diagnosed or untreated partial epilepsy

Authors
 Sang-Ahm Lee ; Hyang-Woon Lee ; Byung-In Lee ; Seon-Ok Kim ; Sun-Mi Lee ; Ok-Joon Kim ; Hong-Ki Song ; Dong-Jin Shin ; Kyoung Heo 
Citation
 Seizure - European Journal of Epilepsy, Vol.20(1) : 49~54, 2011 
Journal Title
 Seizure - European Journal of Epilepsy 
ISSN
 1059-1311 
Issue Date
2011
Abstract
PURPOSE: In this prospective study, we compared the long-term cognitive and behavioral effects of lamotrigine (LTG) and carbamazepine (CBZ) in patients with newly diagnosed or untreated partial epilepsy. METHODS: This was a multicenter, open-label, randomized study that compared monotherapy with LTG and CBZ in newly diagnosed or untreated patients with partial epilepsy. We employed an 8-week titration period and a 40-week maintenance period. Neuropsychological tests, Symptom Check List-90, and QOLIE-31 were assessed at baseline, 16 weeks, and 48 weeks after drug treatment. A group-by-time interaction was the primary outcome measure and was analyzed by use of the linear mixed model. RESULTS: A total of 110 patients were eligible and 73 completed the 48-week study (LTG, n=39; CBZ, n=34). Among the cognitive tests, significant group-by-time interaction was identified only in phonemic fluency of Controlled Oral Word Association Task (p=0.0032) and Stroop Color-Word Interference (p=0.0283), with a significant better performance for LTG group. All other neuropsychological tests included did not show significant group-by-time interactions. Among the subscales of Symptom Check List-90, significant group-by-time interactions were identified in Obsessive-Compulsive (p=0.0005), Paranoid Ideation (p=0.0454), Global Severity Index (p=0.0194), and Positive Symptom Total (p=0.0197), with a significant improvement for CBZ group. QOLIE-31 did not show significant group-by-time interactions. CONCLUSION: Our data suggest that epilepsy patients on LTG have better performance on phonemic fluency and the task of Stroop Color-Word Interference than do patients on CBZ, whereas patients on CBZ had more favorable behavioral effects on two subscales and two global scores of Symptom Check List-90 than did patients on LTG.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/94717
DOI
10.1016/j.seizure.2010.10.006
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Neurology
Yonsei Authors
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Link
 http://www.sciencedirect.com/science/article/pii/S1059131110002372
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