Journals / Türk Psikiyatri Dergisi / 2009 / Cilt: 20 - Sayı: 4

Differences in cerebral blood flow following risperidone treatment in children with autistic disorder

Otistik bozukluğu olan çocuklarda risperidon tedavisinin beyin kan akımı ile değerlendirilmesi

Pages
346–356
DOI
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⚡ TL;DR(Too Long; Didn't Read)

We think that these findings may contribute to the understanding of the neurofunctional mechanisms and hypothetical models of autism.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Functional changes in the brains of autistic children due to risperidone treatment and theirs relationship to the symptom clusters are yet unknown.
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Key Findings & Data:In this autistic disorder case series we aimed to comparatively evaluate the clinical findings before and after risperidone treatment, and regional cerebral blood flow (rCBF) findings with 99mTc- hexamethylpropyleneamine oxime (HMPAO) brain SPECT.
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Conclusion & Impact:We think that these findings may contribute to the understanding of the neurofunctional mechanisms and hypothetical models of autism.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Functional changes in the brains of autistic children due to risperidone treatment and theirs relationship to the symptom clusters are yet unknown. In this autistic disorder case series we aimed to comparatively evaluate the clinical findings before and after risperidone treatment, and regional cerebral blood flow (rCBF) findings with 99mTc- hexamethylpropyleneamine oxime (HMPAO) brain SPECT. Method: Eleven autistic patients (age range: 6-7 years; 4 girls, 7 boys) received risperidone therapy (1.5-2.5 mg d?1) and were followed-up for 3 months. All the patients underwent neurologic examinations, psychometric examinations, and SPECT imaging, both at the start of risperidone treatment and 3 months after the treatment started. Clinical observations, and the observations of parents and teachers were recorded. These results were compared with cerebral perfusion indices obtained from SPECT data. Results: After 3 months of treatment changes in rCBF were observed in various regions and to varying degrees. We observed relationships between clinical symptoms and pre-therapy rCBF findings, and between clinical improvement and rCBF changes. Conclusion: Findings in the present case series are the first to demonstrate a relationship between clinical improvement and regional perfusion patterns after risperidone treatment. We think that these findings may contribute to the understanding of the neurofunctional mechanisms and hypothetical models of autism.

Özet

Amaç: Otizmde risperidon tedavisinin beyin işlevini nasıl etkilediği ve işlevsel değişiklikler ile belirti dağılımı arasındaki ilişkinin ne olduğu bilinmemektedir. Bu olgu serisinde otistik bozukluğu olan çocukların risperidon tedavisi öncesi ve sonrası klinik görünümdeki değişimlerin tek foton bilgisayarlı emisyon tomografisi (SPECT) beyin kan akımı bulguları ile karşılaştırılması amaçlanmıştır. Yöntem: Otistik bozukluk tanısı alan 11 hasta, (yaş 6-17, 4 kız, 7 erkek) risperidon tedavisi başlanarak (1.5-2.5 mg/gün, 3 ay) takibe alınmıştır. Olgular başlangıçta ve 3 ay sonra nörolojik muayene, psikometrik incelemeler ve beyin SPECT görüntüleme yöntemiyle değerlendirilmiştir. Klinik gözlem bulguları, anne baba ve öğretmenin gözlemleri kaydedilmiştir. Bu sonuçlar SPECT verilerindeki beyin kan akımı değerleriyle karşılaştırılmıştır. Bulgular: Üç aylık tedavi sonunda beynin farklı bölgelerinde farklı düzeylerde kan akımı değişiklikleri gözlenmiştir. Tedavi öncesi beyin kan akımı bulguları ile klinik belirtiler arasında ve klinik düzelmeyle beyin kan akımı değişiklikleri arasında ilişki olduğu gözlenmiştir. Sonuç: Bu olgu serisinin sonuçları risperidon tedavisi sonrası bölgesel beyin kan akımı ve klinik değişimler arasındaki ilişkiyi gösteren ilk bulgulardır. Bu bulguların otizmde nörofonksiyonel mekanizmaları anlamaya ve kuramsal modellerin oluşturulmasına yönelik katkıda bulunacağını düşünüyoruz.

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Cite This Article

ÖZDEMİR, D. F., KARABACAK, N. I., AKKAŞ, B., AKDEMİR, Ö., ÜNAL, F., ŞENOL, S. (2009). Differences in cerebral blood flow following risperidone treatment in children with autistic disorder. Türk Psikiyatri Dergisi, Cilt: 20 - Sayı: 4, 346–356. https://ajindex.com/articles/80814

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