Objective measures of disordered sleep in fibromyalgia.
Objective measures of disordered sleep in fibromyalgia.
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DOI:
10.3899/jrheum.090051
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发表时间:
2009-09
期刊:
影响因子:
--
通讯作者:
Crofford LJ
中科院分区:
文献类型:
--
作者:
Chervin RD;Teodorescu M;Kushwaha R;Deline AM;Brucksch CB;Ribbens-Grimm C;Ruzicka DL;Stein PK;Clauw DJ;Crofford LJ
Patients with fibromyalgia syndrome (FMS) complain of inadequate sleep, which could contribute to common symptoms including sleepiness, fatigue, or pain. However, measures that consistently and objectively distinguish FMS patients remain elusive. Fifteen women with FMS and 15 age- and gender-matched controls underwent 3 nights of polysomnography; Multiple Sleep Latency Tests to assess sleepiness; testing of auditory arousal thresholds during non-REM stage 2 and stage 4 sleep; overnight assessment of urinary free-cortisol; and analysis of 24-hour heart rate variability. On the second night of polysomnography, women with FMS in comparison to controls showed more stage shifts (p=0.04) but did not differ significantly on any other standard polysomnographic measure or on the Multiple Sleep Latency Tests. Alpha EEG power during deep non-REM sleep, alone or as a proportion of alpha power during remaining sleep stages, also failed to distinguish the groups, as did auditory arousal thresholds. Urinary free cortisol did not differ between FMS and control subjects in a consistent manner. However, decreased short-term heart rate variability and especially ratio-based HRV among FMS subjects suggested diminished parasympathetic and increased sympathetic activity, respectively. Other HRV measures suggested decreased complexity of HRV among the FMS subjects. Standard measures of sleep, a gold-standard measure of sleepiness, quantified alpha-delta EEG power, auditory arousal thresholds, and urinary free cortisol largely failed to distinguish FMS and control subjects. However, HRV analyses showed more promise, as they suggested both increased sympathetic activity and decreased complexity of autonomic nervous system function in FMS.
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作者:
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通讯作者:
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