Lucio Huebra1, Fernando Morgadinho Coelho1, Flávio Moura Rezende Filho2, Orlando G Barsottini3, José Luiz Pedroso2. 1. Division of General Neurology and Ataxia Unit, Department of Neurology, Universidade Federal de São Paulo, São Paulo, SP, Brazil. 2. Sleep Disorders Unit, Department of Neurology, Universidade Federal de São Paulo, São Paulo, SP, Brazil. 3. Sleep Disorders Unit, Department of Neurology, Universidade Federal de São Paulo, São Paulo, SP, Brazil. orlandobarsottini@gmail.com.
Abstract
PURPOSE OF REVIEW: In this review, we aim to describe the main sleep disorders observed in patients with different forms of hereditary ataxias and discuss the main pathophysiological mechanisms. RECENT FINDINGS: Several pathological studies have demonstrated that the degenerative process in patients with hereditary ataxias may involve not only the cerebellum, but also other areas of the nervous system, and explain noncerebellar symptoms, such as sleep disorders. Hereditary ataxias are neurodegenerative disorders with heterogeneous genetic and clinical presentation. This group of diseases usually affects other areas of the nervous system, besides the cerebellum, and noncerebellar signs and symptoms may occur, such as sleep disorders. The main sleep disorders related to hereditary ataxias include REM sleep behavior disorder, insomnia, excessive daytime sleepiness, obstructive and central sleep apnea, periodic leg movement in sleep, and restless legs syndrome.
PURPOSE OF REVIEW: In this review, we aim to describe the main sleep disorders observed in patients with different forms of hereditary ataxias and discuss the main pathophysiological mechanisms. RECENT FINDINGS: Several pathological studies have demonstrated that the degenerative process in patients with hereditary ataxias may involve not only the cerebellum, but also other areas of the nervous system, and explain noncerebellar symptoms, such as sleep disorders. Hereditary ataxias are neurodegenerative disorders with heterogeneous genetic and clinical presentation. This group of diseases usually affects other areas of the nervous system, besides the cerebellum, and noncerebellar signs and symptoms may occur, such as sleep disorders. The main sleep disorders related to hereditary ataxias include REM sleep behavior disorder, insomnia, excessive daytime sleepiness, obstructive and central sleep apnea, periodic leg movement in sleep, and restless legs syndrome.
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