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- Title
Is a polysomnographic recording prior to MSLT worth the effort?
- Authors
Karimi, M.; Hedner, J.; Grote, L.
- Abstract
Objective: It was recently proposed that polysomnography (PSG) may be replaced by actigraphy in order to obtain long-term sleep time prior to the multiple sleep latency test (MSLT). Polysomnography is used to assess sleep time and to detect and classify underlying sleep pathology. In the following article, the contribution of PSG to the diagnostic outcome of the MSLT is discussed. Methods: MSLT referrals ( n = 81) with in-home polysomnography from the neurology ( n = 39, 23 women, 37 (±13) years) and pulmonary medicine ( n = 42, 20 women, 41 (±14) years) departments were analyzed. The diagnostic outcomes of the PSG and MSLT were examined. Results: Median total sleep time prior to MSLT was 362 (range, 156-530) min. Sleep apnea (respiratory disturbance index > 15/h and > 30/h) was diagnosed in 21 and 19 patients, respectively. Periodic limb movements (PLM) were identified in 5 patients; 3 of these had a PLM arousal index > 5/h. Sleep onset REM (SOREM) was detected during PSG in 5 patients; 4 of these also had SOREM in the MSLT. Conclusion: PSG combined with MSLT was found to improve diagnostic outcome and is highly useful for recognition of sleep-related pathology. Various sleep disorders remain undetected if ACT alone is used prior to MSLT procedures.
- Subjects
SLEEP disorder diagnosis; POLYSOMNOGRAPHY; ACTIGRAPHY; NEUROLOGY; RESPIRATION; PATHOLOGY; HEALTH outcome assessment
- Publication
Somnologie, 2011, Vol 15, Issue 4, p239
- ISSN
1432-9123
- Publication type
Article
- DOI
10.1007/s11818-011-0534-9