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Yıl:2018; Cilt: 55; Sayı: 1>> Özet
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Nöropsikiyatri Arşivi; 2018;55(1):84-90
Serebral Mikrokanama Yükü ve Yerleşiminin Kognitif Disfonksiyon ile İlişkisi
G Büyükşerbetçi, E Saka, KK Oğuz, R Göçmen, EM Arsava, MA Topçuoğlu
Balıkesir Üniversitesi, Balıkesir
Amaç: Manyetik rezonans (MR) görüntülemede diğer açılardan asemptomatik serebral beyaz cevher lezyonu (SBL) saptanan yaşlılarda bulunan serebral mikrokanamaların (SMK) kognitif fonksiyonlara olan etkisi yeterince ayrılıp dokümante edilmiş değildir. Yöntem: Serebral atrofi, SMK ve SBL’nin MR parametreleri ile kognisyonun global ve ana eksenleri (dikkat, yürütücü, hafıza, görseluzaysal ve lisan) arasındaki bağlantı tesadüfen SMK saptanan yaşı elliden büyük 85 hastada çalışıldı. Tanı almış nörodejeneratif ve nörovasküler hastalığı olmayan bu çalışma popülasyonu, bir yıl süresince T2*-gradient eko sekansı ile beyin MR çekilmiş olan 2562 olgu arasından geriye dönük olarak tespit edilip muayeneye çağrıldı. Bulgular: Global kognisyon, olguların %42’sinde mini-mental durum muayenesine göre (MMSE, ≤24 ise bozuk kabul edilir) anormaldir. SMK yükü değil ama SBL yoğunluğu ve temporal atrofi MMSE≤24 olanlarda daha yüksek orandadır. “Kolinerjik Yolakların Hiperintensiteleri Skalası” (CHIPS) global kognitif disfonksiyon ile korele iken, bunun SMK eşleniği (bu çalışmada tanımlanan “Kolinerjik Yolakların Mikrokanama Skoru”) değildir. Ancak, özellikle talamik ve kortikal SMK yükünün subklinik lisan disfonksiyonu ile bağlantısı dikkati çekmiştir. Sonuç: SMK ile bağlantılı kognitif disfonksiyonun mutlak adet ile değil lokalizasyon ve dağılımla daha çok ilgili olduğunu işaret etmektedir
Cognitive Dysfunction in Relation to Topography and Burden of Cerebral Microbleeds
Introduction: Contribution of cerebral microbleeds (CMBs) on cognitive dysfunctions in elderly patients with otherwise asymptomatic white matter lesions (WMLs) is not well-documented. Methods: MRI parameters of cerebral atrophy, CMBs and WMLs were herein analyzed in relation to global and main domains (attention, executive, memory, visuospatial, language) of cognitive function. Eightyfive patients older than 50, without neurodegenerative/cerebrovascular disease, but had CMBs were recruited from 2562 with T2*-gradient-echo MR imaging during one-year period. Results: Global cognition, evaluated by mini-mental status examination (MMSE), was impaired (score =24) in 42%. In contrast to CMBs load, WML burden and temporal atrophy were significantly higher in cases with MMSE=24. Cholinergic Pathways HyperIntensities Scale (CHIPS) was positively correlated with global cognitive dysfunction but its CMB counterpart, Cholinergic Pathways Bleeding Scale described herein, was not. However, burden of CMBs in thalamic/cortical regions predicted language dysfunction. Conclusion: Cognitive dysfunction associated with CMBs may be dependent on their distribution rather than their absolute number.

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