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Yıl:2006; Cilt: 16; Sayı: 2>> Özet
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Klinik Psikofarmakoloji Bülteni; 2006;16(2):93-97
Alzheimer Hastalığı ve hafif kognitif bozuklukta pirasetamın EEG spektral analizi üzerine uzun dönem etkileri
E Değirmenci, T Şahiner, Ç Erdoğan, F Özdemir, S Gür, M Şahiner
Pamukkale University Medical Faculty, Dept Neurology, Denizli
Amaç: Piracetamın inme sonrası afazi ve miyoklonik epilepside etkileri EEG'de spektral güç analizleri ile gösterilmiştir. Bu hastalarda pirasetamın kısmen alfa topografisinde düzenlenmesinde rolü olduğu bildirilmesine rağmen Alzheimer hastalarında veya hafif kognitif bo­zukluğu olan hastalarda pirecetamın uzun süreli etkileri tam olarak tanımlanmamıştır.
Yöntem: Bu çalışmada 13 hafif kognitif bozukluğu olan hasta, 18 hafif veya orta derecede Alzheimer hastası ve bu hastalara yaş ve cinsiyet olarak benzer özelliklere sahip 16 sağlıklı bireyden oluşan kontrol gru­bunda başlangıç, 4 hafta süre ile 2400mg piracetam kullanımı ve bu­nu takip eden 4 hafta süre ile 4800 piracetam kullanımı sonrası spek­tral EEG kayıtları incelenerek güç spektrumu analizleri yapılmıştır. Sonuçlar: Alzheimer grubunda delta bant gücünün 2400mg dozun­da ortaya çıktığı ve bu durumun 4800mg dozunda da devam ettiği görülmüştür. Teta bant gücünde anlamlı olarak azalmanın ortaya çık­tığı, alfa ve beta bant güçlerinde ise değişikliğin ortaya çıkmadığı sap­tanmıştır. Hafif kognitif bozukluğu olan hastalarda da benzer sonuç­lar elde edilmiştir.
Sonuç: Uzun süreli piracetam kullanımın Alzheimer hastaları ve hafif kognitif bozukluğu olan hastalarda EEG'de yavaş dalga bant güçleri­ni arttırmaktadır.
Long term effects of piracetam on spectral analysis of EEG in Alzheimer and minimal cognitive impairment
Objective: Influence of piracetam in post-stroke aphasia and myoclonic epilepsy has been shown with EEG spectral power analysis. Particularly piracetam is involved in restoration of alpha topography in these patients. On the other hand long term effects of piracetam in Alzheimer or minimal cognitive impairment (MCI] patients have not been determined so far.
Methods: We have evaluated spectral EEG analysis of 13 minimal cognitive impairment and 18 mild or less severe Alzheimer dementia patients after receiving piracetam 2400 mg and 4800 mg respectively for 4 weeks. Control group was consisted of 16 healthy subjects with similar age and sex characteristics. We analyzed EEG power spectrum before and after delivering 2400 or 4800 mg piracetam. Results: In Alzheimer group enhancement of delta band power began with 2400 mg piracetam and lasted on 4800 mg. Theta band power spectrum values significantly decreased. Alpha and beta band power spectrums were not changed. MCI patients have shown very similar results with AD patients
Conclusions: We have found that long term delivering of piracetam enhances slow-wave band powers of EEG both in Alzheimer and MCI patients.

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