Perception of sleep: Subjective versus objective sleep parameters in patients with Parkinson’s disease in comparison with healthy elderly controls
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Subjective sleep perception, as measured against objective parameters such as those obtained by polysomnography, have not been examined thoroughly to date. Little is known about subjective sleep perception in patients with chronic somatic diseases.
Patients and methods
Patients with Parkinson’s disease (PD) and healthy elderly controls filled in a sleep log over 14 days, which included a self–rating questionnaire concerning sleep and quality of time awake, sleep times and somatic complaints. All participants underwent polysomnography in the sleep lab on nights 7 and 8, and slept all other nights at home.
Seventeen patients with PD (64 ± 6 years, 6 female, Hoehn and Yahr median = 2), and 62 healthy controls of the same age without sleep disturbances (64 ± 8 years, 36 female) were included. Patients with PD showed reduced subjective sleep (p = 0.001) and quality of time awake (p = 0.02), decreased sleep duration (p = 0.01) and reduced sleep efficiency (p = 0.004) compared with the controls. Subjective sleep efficiency at home was no different from that in the sleep lab for both groups. Patients with PD reported more somatic complaints (p = 0.001) than controls but did not show a firstnight effect.
In summary, patients with PD have subjectively and objectively disturbed sleep as compared to healthy controls of the same age. However, they may not rate this poor sleep as much changed from their baseline sleep at home, and they have more somatic complaints. Increasing sleep efficiency might be of importance in PD patients, as it shows an association with subjective quality of time awake in the morning.
Key wordssubjective sleep perception polysomnography Parkinson’s disease elderly healthy controls
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- 8.Becker-Carus C (1997) Wahrnehmung des Schlafes. In: DGSM Schulz H (Hrsg.) Kompendium Schlafmedizin, ecomed-Verlagsgesellschaft, Landsberg/ Lech, II – 1Google Scholar
- 12.Chervin RD (2000) Use of clinical tools and tests in sleep medicine. In: Kryger MH, Roth T, Dement WC (eds) Principles and practice of sleep medicine, pp 535–546Google Scholar
- 13.Chokroverty S (1996) Sleep and degenerative neurologic disorders. Neurol Clin 4:807–826Google Scholar
- 17.Happe S, Trenkwalder C (2003) Movement disorders in sleep. Parkinson’s disease and restless legs syndrome. Biomed Eng 48:62–67Google Scholar
- 28.Rechtschaffen A, Kales A (1968) A manual of standardized terminology, techniques and scoring system for sleep stages of human subjects. Public Health service, US, Government Printing Office, Washington,DCGoogle Scholar
- 30.Saletu B, Wessely P, Grünberger J, Schultes M (1987) Erste klinische Erfahrungen mit einem neuen schlafanstoßenden Benzodiazepin, Clonazepam, mittels eines Selbstbeurteilungsbogens für Schlaf- und Aufwachqualität (SSA). Neuropsychiatrie 1:169–176Google Scholar
- 32.Swift CG, Shapiro CM (1993) Sleep and sleep problems in elderly people. BMJ 36:1468–1471Google Scholar
- 35.Wetter TC, Collado-Seidel V, Trenkwalder C (1999) Polysomnographische Untersuchungen von Patienten mit Parkinson-Syndromen im Vergleich zu gesunden Kontrollen. Somnologie 3:300–306Google Scholar