While no clinical trial to date has specifically targeted fatigue , r and omized controlled trials , systematic review s , and meta-analyses indicate that treatment modalities studied in the context of other fibromyalgia symptoms could also improve fatigue .
Fatigue is a disabling , multifaceted symptom that is highly prevalent and stubbornly persistent .
Although fatigue is a frequent complaint among patients with fibromyalgia , it has not received the same attention as pain .
Reasons for this include lack of st and ardized nomenclature to communicate about fatigue , lack of evidence -based guidelines for fatigue assessment , and a deficiency in effective treatment strategies .
Fatigue does not occur in isolation ; rather , it is present concurrently in varying severity with other fibromyalgia symptoms such as chronic widespread pain , unrefreshing sleep , anxiety , depression , cognitive difficulties , and so on .
Survey-based and preliminary mechanistic studies indicate that multiple symptoms feed into fatigue and it may be associated with a variety of physiological mechanisms .
The effects of sodium oxybate on clinical symptoms and sleep patterns in patients with fibromyalgia.
OBJECTIVE Fibromyalgia ( FM ) is associated with the sleep phenomenon of alpha intrusion , and with low growth hormone secretion . Sodium oxybate has been shown to increase both slow-wave sleep and growth hormone levels . This double blind , r and omized , placebo controlled crossover trial was conducted to evaluate the effects of sodium oxybate on the subjective symptoms of pain , fatigue , and sleep quality and the objective polysomnographic ( PSG ) sleep variables of alpha intrusion , slow-wave ( stage 3/4 ) sleep , and sleep efficiency in patients with FM . METHODS Patients received either 6.0 g/day sodium oxybate or placebo for 1 month , with an intervening 2 week washout period . Efficacy measures included PSG evaluations , tender point index ( TPI ) , and subjective measurements from daily diary entries . Safety measures included clinical laboratory values , vital signs , and adverse events . RESULTS Twenty-four female patients were included in the study ; 18 completed the trial .  TPI was decreased from baseline by 8.5 , compared with an increase of 0.4 for placebo ( p = 0.0079 ) . Six of the 7 pain/fatigue scores ( overall pain , pain at rest , pain during movement , end of day fatigue , overall fatigue , and morning fatigue ) were relieved by 29 % to 33 % with sodium oxybate , compared with 6 % to 10 % relief with placebo ( p < 0.005 ) . Alpha intrusion , sleep latency , and rapid-eye-movement sleep were significantly decreased , while slow-wave ( stage 3/4 ) sleep was significantly increased , compared with placebo ( p < 0.005 ) . Two of the 5 subjective sleep related variables were significantly different from placebo :  morning alertness ( improved by 18 % with sodium oxybate , compared with 2 % for placebo ; p = 0.0033 ) and quality of sleep ( improved by 33 % and 10 % , respectively ; p = 0.0003 ) . CONCLUSION Sodium oxybate effectively reduced the symptoms of pain and fatigue in patients with FM , and dramatically reduced the sleep abnormalities ( alpha intrusion and decreased slow-wave sleep ) associated with the nonrestorative sleep characteristic of this disorder
While no clinical trial to date has specifically targeted fatigue , r and omized controlled trials , systematic review s , and meta-analyses indicate that treatment modalities studied in the context of other fibromyalgia symptoms could also improve fatigue .
Fatigue is a disabling , multifaceted symptom that is highly prevalent and stubbornly persistent .
Although fatigue is a frequent complaint among patients with fibromyalgia , it has not received the same attention as pain .
Reasons for this include lack of st and ardized nomenclature to communicate about fatigue , lack of evidence -based guidelines for fatigue assessment , and a deficiency in effective treatment strategies .
Fatigue does not occur in isolation ; rather , it is present concurrently in varying severity with other fibromyalgia symptoms such as chronic widespread pain , unrefreshing sleep , anxiety , depression , cognitive difficulties , and so on .
Survey-based and preliminary mechanistic studies indicate that multiple symptoms feed into fatigue and it may be associated with a variety of physiological mechanisms .