Kleine-Levin syndrome (KLS), also known as sleeping beauty syndrome, is a rare, remittent-relapsing disease mostly affecting male adolescents. The syndrome is characterized by episodes of hypersomnia of 1 to several weeks, plus cognitive, behavioral, and psychiatric disorders. We presented a case of a 17-year-old girl, who suffered from intermittent consciousness disturbance for 2 years and was suspected to have KLS. Most neuroimages, such as magnetic resonance imaging and electroencephalography showed negative findings. Tc-99m-ethyl cysteinate dimer brain perfusion single-photon emission computed tomography study revealed mild hypoperfusion in the bilateral thalami, basal ganglia, and left occipital lobe. The easy Z-score imaging system study showed prominent decreased perfusion in these areas and the diagnosis of KLS was established.
克萊恩-萊文症候群又被稱作睡美人病,是一種罕見又易復發的疾病,主要發生在青少年。其症狀包括1週以上的嗜睡現象,以及認知、行為與精神上的異常。這篇研究中我們報告1位17歲女性伴隨有2年間斷性的意識異常,且最後被診斷為克萊恩-萊文症候群。大部分的神經影像,比如核磁共振與腦波檢查均為陰性。鎝99m-ECD腦部灌流單光子斷層掃瞄檢查發現在雙側視丘與左側枕葉有輕度灌流下降的現象。進一步以easy Z-score imaging system(eZIS)分析可見在上述區域有明確的血流下降,因而建立克萊恩-萊文症候群的診斷。