不眠が長く続いてしまうと、不眠に対する不安や、睡眠薬で眠れていても薬に対する不安が強まります。そして、自己判断で服薬を止めてしまうことによる不眠症状の悪化・再燃が、一層、不眠への不安を強めてしまい、さらに不眠が悪化してしまいます。この場合、不眠に対する不安・こだわりや布団・ベッドに入ると無意識に緊張してしまう状態(「身体化された緊張」と「学習された睡眠妨害的連想」と言います)を解消するため、安定して眠れるようになるまで、不眠の原因・背景に合わせた適切な必要最小限の睡眠薬を継続して服用し、症状の改善を見ながら減薬をおこないます。なお、漠然と睡眠薬を飲み続けたり、自己判断で早急に服薬を中断してしまうことで反動で不眠が再発してしまうことがあり、逆に治療期間が長引く恐れがあります。どうしても、不眠に対する不安やこだわりが改善しない場合、不眠に特化した認知行動療法(Cognitive-Behavioral Therapy for Insomnia:CBT-I)の適応になります。CBT-Iの適応、希望の場合、CBT-Iが可能な医療機関への紹介を検討いたします。
Okajima I, Nakamura M, Nishida S, Usui A, Hayashida Km Kanno M, Nakajima S, Inoue Y. Cognitive behavioural therapy with behabioural analysis for pharmacological treatment-resistant chronic insomnia. Psychiatry Res 2013;210(5):515-21
Isa OKAJIMA, Kenichi HAYASHIDA,Masaki NAKAMURA,Meri WATANABE,Akira USUI,Kayo SHIBUI,and Yuichi INOUE:Effectiveness of cognitive behavioral therapy on patients with hypnotics-dependent chronic insomnia.
Nakamura M, Inoue Y, Matsuoka H: Tractographic imaging of posttraumatic hypersomnia. Sleep Medicine 9:98-100,2007
※頭部外傷で脳に微細な構造異常が生じた結果、「過眠」症状を呈した症例を報告。Sleep Medicineの表紙に、現在でもカバーイメージとして載っています。
Nakamura M, Kanbayashi T, Sugiura T, Inoue Y : Relationship between clinical characteristics of narcolepsy and CSF orexin-A levels, J Sleep Res 20(1): 45-49, 2011
Nakamura M, Nishida S, Hayashida K, Ueki Y, Dauvilliers Y, Inoue Y: Differences in brain morphological findings between narcolepsy with and without cataplexy. PLos One 2013;8(11):e81059 ※情動脱力発作を伴うナルコレプシーで、扁桃体といわれる情動に関わる脳の部位にわずかな構造異常がある可能性を報告した論文。この論文により、Narcolepsy Network 29th Annual Conference, Researcher of the year award 2014 (USA)(全米ナルコレプシーネットワーク2014年ベスト研究者賞)を受賞し、Who's Who in the World 33rd Edition, 2016に選出されました。
Takei Y, Komada Y, Namba K, Sasai T, Nakamura M, Sugiura T, Hayashida K, Inoue Y. Differences in findings of nocturnal polysomnography and multiple sleep latency test between narcolepsy and idiopathic hypersomnia. Clin Neurophysiol. 2012, 123(1):137-41
Sakuta K, Nakamura M, Komada Y, Yamada S, Kawana F, Kanbayashi T, Inoue Y. Possible mechanism of secondary narcolepsy with a long sleep time following surgery for craniopharingioma. Inten Med 2012; 51(4):413-7
Ueki Y, Hayashida K, Komada Y, Nakamura M, Kobayashi M, Iimori M, Inoue Y. Factors associated with duration before receiving definitive diagnosis of narcolepsy among Japanese patients affected with the disorder. Int J Behav Med 2013 Dec 3, Published online
Futenma K, Takaesu Y, Nakamura M, Hayashida K, Takeuchi N, Inoue Y. Metabolic-Syndrome-Related Comorbidities in Narcolepsy Spectrum Disorders: A Preliminary Cross-Sectional Study in Japan. Int J Environ Res Public Health 2022 19(10):6285
Nakamura M, Nishida S, Ueki Y, Hayashida K, Inoue Y. The brain microstractural abnormalities in narcolepsy those cause daytime sleepiness and cataplexy. World Sleep 2011, Kyoto (2011.10.17)
Nakamura M, Inoue Y. The neuroimaging study on narcolepsy -The brain morphological difference between narcolepsy with cataplexy and narcolepsy without cataplexy-. Sleep Research Academy in Kyoto 2011, Kyoto (2011.10.17)
Takei Y, Nakamura M, Inoue Y et al. : Differences in findings of nocturnal polysomnography and multiple sleep latency test between narcolepsy and idiopathic hypersomnia. World Sleep 2011, Kyoto (2011.10.17)
Nakamura M, Inoue Y: Differences in Brain Morphological Findings between Narcolepsy with and without Cataplexy -The neuroimaging study on Narcolepsy-, Narcolepsy Network’s 19th Annual Conference, Denver (2014.10.18)
中村真樹、井上雄一、むずむず脚(下肢静止不能)症候群(restless legs syndrome)、臨床雑誌「内科」109(6):968-971, 2012
中村真樹、井上雄一、レストレスレッグス症候群、カレントテラピー 33(4):43-50, 2015
論文(共著含む)
Kobayashi M, Namba K, Ito E, Nishida S, Nakamura M, Ueki Y, Furudate N, Kagimura T, Usui A, Inoue Y. The validity of the PAM-RL device for evaluating periodic limb movements in sleep and an investigation on night-to-night variability of periodic limb movements during sleep in patients with restless legs syndrome or periodic limb movement disorder using this system. Sleep Med 2014 15(1):138-43
Suzuki K, Miyamoto M, Miyamoto T, Suzuki S, Inoue Y, Murata M, Matsui K, Nishida S, Hayashida K, Usui A, Ueki Y, Nakamura M, Hirata K. The effect of comorbidity of restless legs syndrome and migraine on sleep and mood: an integration of multicenter data. Sleep Biol Rhythms 2016 14:187-191
Takahashi M, Nishida S, Nakamura M, Kobayashi M, Matsui K, Ito E, Usui A, Inoue Y. Restless legs syndrome augmentation among Japanese patients receiving pramipexole therapy: Rate and risk factors in a retrospective study. PLos One 2017 12(3):e0173535
Abe T, Inoue Y, Komada Y, Nakamura M, Asaoka S, Kanno M, Shibui K, Hayashida K, Usui A, Takahashi K. Relation between morningness-eveningness score and depressive symptoms among patients with delayed sleep phase syndrome. Sleep Med. 2011, 12(7):680-4
Yanagihara M, Nakamura M, Usui A, Nishida S, Ito E, Okawa M, Inoue Y. The melatonin receptor agonist is effective for free-running type circadian rhythm sleep disorder: case report on two sighted patients. Tohoku J Exp Med 2014 234(2):123-8
Miyamoto T, Miyamoto M, Iwanami M, Kobayashi M, Nakamura M, Inoue Y, Ando C, Hirata K. The REM sleep behavior disorder screening questionnaire: Validation study of a Japanese version, Sleep Med. 10: 1151-1154, 2009
Miyamoto T, Miyamoto M, Iwanami M, Hirata K, Kobayashi M, Nakamura M, Inoue Y. Olfactory dysfunction in idiopathic REM sleep behavior disorder, Sleep Med. 11: 458-461, 2010
Hanyu H, Inoue Y, Sakurai H, Kanetaka H, Nakamura M, Miyamoto T, Sasai T, Iwamoto T. Regional cerebral blood flow changes in patients with idiopathic REM sleep behavior disorder. Eur J Neurol 18(5):784-788, 2010
Hanyu H, Inoue Y, Sakurai H, Kanetaka H, Nakamura M, Miyamoto T, Sasai T, Iwamoto T. Voxel-based magnetic resonance imaging study of structural brain changes in patients with idiopathic REM sleep behavior disorder. Parkinsonism Relat Disord 2012 18(2):136-9
Sakurai H, Hanyu H, Inoue Y, Kanetaka H, Nakamura M, Miyamoto T, Sasai T, Iwamoto T. Longitudinal study of regional cerebral blood flow in elderly patients with idiopathic rapid eye movement sleep behavior disorder. Geriatr Gerontol Int 2014; 14(1):115-20
Kawaguchi H, Shimada H, Kodaka F, Suzuki M, Shinotoh H, Hirano S, Kershaw J, Inoue Y, Nakamura M, Sasai T, Kobayashi M, Suhara T, Ito H. Principal Component Analysis of Multimodal Neuromelanin MRI and Dopamine Transporter PET Data Provides a Specific Metric for the Nigral Dopaminergic Neuronal Density. PLOS ONE 2016: e0151191
Komada Y, Takaesu Y, Matsui K, Nakamura M, Nishida S, Kanno M, Usui A, Inoue Y. Comparison of clinical features between primary and drug-induced sleep-related eating disorder. Neuropsychiatr Dis Treat. 2016 12:1275-80
Furukawa S, Shimada H, Shinotoh H, Hirano S, Tamada M, Kawaguchi H, Ito H, Nishida S, Kobayashi M, Sasai T, Nakamura M, Kuwabara S, Inoue Y, Suhara T: Quantification of putaminal dopamine transporter in patients with REM sleep behavior disorder and Parkinson’s disease, 18thInternational Congress of Parkinson’s Disease and Movement Disorders, Stockholm (2014.6.8)