Sleep staging and respiratory events in refractory epilepsy patients: Is there a first night effect?

被引:27
|
作者
Selwa, Linda M. [1 ]
Marzec, Mary L. [1 ]
Chervin, Ronald D. [1 ]
Weatherwax, Kevin J. [1 ]
Vaughn, Bradley V. [2 ]
Foldvary-Schaefer, Nancy [3 ]
Wang, Lily [4 ]
Song, Yanna [4 ]
Malow, Beth A. [4 ]
机构
[1] Univ Michigan Med Ctr, Dept Neurol, Ann Arbor, MI USA
[2] Univ N Carolina, Dept Neurol, Chapel Hill, NC USA
[3] Cleveland Clin Fdn, Dept Neurol, Cleveland, OH 44195 USA
[4] Vanderbilt Univ, Med Ctr, Dept Neurol, Nashville, TN USA
关键词
First night effect; Polysomnogram; Epilepsy; Obstructive sleep apnea; Rapid eye movement (REM) sleep; Slow-wave sleep (SWS);
D O I
10.1111/j.1528-1167.2008.01681.x
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
We performed this analysis of possible first night effects (FNEs) on sleep and respiratory parameters in order to evaluate the need for two serial night polysomnograms (PSGs) to diagnose obstructive sleep apnea (OSA) in epilepsy patients. As part of a pilot multicenter clinical trial investigating the effects of treating sleep apnea in epilepsy, two nights of PSG recording were performed for 40 patients with refractory epilepsy and OSA symptoms. Sleep architecture was examined in detail, along with respiratory parameters including apnea/hypopnea index (AHI) and minimum oxygen saturation. Analysis included two-tailed t-tests, Wilcox sign rank analysis, and Bland Altman measures of agreement. Total sleep time differed between the two nights (night 1,363.8 min + 59.4 vs. 386.3 min + 68.6, p = 0.05). Rapid eye movement (REM) sleep and percentage of REM sleep were increased during night two (night 1: 12.3% + 5.9 vs. night 2: 15.5% + 6.2, p = 0.007), and the total minutes of slow-wave sleep (SWS) were increased (night 1: 35.6 + 60.7 vs. night 2: 46.4 + 68.1, p = 0.01). No other sleep or respiratory variables differed between the two nights. Given an AHI inclusion criterion of five apneas per hour, the first PSG identified all but one patient with OSA. Respiratory parameters showed little variability between the first and second nights. Sleep architecture was mildly different between the first and second PSG night. Performing two consecutive baseline PSGs to diagnose OSA may not be routinely necessary in this population.
引用
收藏
页码:2063 / 2068
页数:6
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