View clinical trials related to Myofascial Pain Syndromes.
Filter by:Clinically Characterized by the presence of chronic widespread pan and tenderness, Fibromyalgia (FM) is one of the most common "functional" syndromes. FM is currently conceived of as representing a prototype of central pain, i.e. a condition in which sensitization of the central nervous system results in a overall increase in the processing of painful stimuli, as well as an impairment of pain inhibition. This condition is responsible for significant a social and economic burden and is estimated to affect up to 5% of all women. The 1990 American College of Rheumatology (ACR) classification criteria for FM are the current standard for studying FM, and require the presence of widespread pain lasting over 3 months, as well as documentation of tenderness in at least 11 of 18 pre-defined "tender points. Multiple additional symptoms, which are not part of the classification criteria, include among others sleep disturbances, mood disturbances, cognitive dysfunction, vulvodynia, dysmenorrhea, sexual dysfunction and weight fluctuations. In addition, FM is well known to overlap both clinically and epidemiologically with an ever increasing number of other "functional" disorders, including irritable bowel syndrome (IBS), Temporomandibular joint disorder (TMJD), functional dyspepsia etc. In addition to the central symptom of pain, FM patients frequently complain of non- specific symptoms which are potentially autonomically - mediated. Thus, palpitations, fatigue and inability to stand for long periods of time are all common complaints. About 80-90 percent of FM patients have one or more symptoms associated with autonomic dysfunction. The most common of them is presyncope (62.5%), followed by syncope (12.5%), palpitations on standing (12.5%) and dizziness (12.5%) (14). Some of these symptoms overlap with those of the postural tachycardia syndrome (POTS). POTS is a common dysautonomia, characterized by remarkable increased heart rate during the assumption of the upright posture (>30 bpm). According to our experience, FM is found, at least, in 15% of POTS patients. But, no data exists about the incidence of POTS in patients with FM.The role of the autonomic nervous system (ANS) in initiating and maintaining the syndrome of FM has been studies (and debated) over the last decade. The ANS is an extremely complex system, regulating involuntary body functions, including heart rate, intestinal motility, urination, and sexual activity, among many other variables. Notably, the vagus has an inhibitory effect on pain. Deterioration in the vagal control is "associated" with increased pain sensation. Previous studies have indicated that FM patients may have an increase in sympathetic control over the cardiovascular system with a reciprocal decrease in parasympathetic control. High sympathetic tone is usually associated with a lower threshold to pain. But, the contribution of the ANS to the pathogenesis of FM syndrome remains unclear. Evidently, the ANS interacts with other components of the CNS in the pathogenesis of FM, including pain processing centers in the thalamus and amygdala, as well as with the hypothalamic-pituitary-adrenal (HPA) axis.
The purpose of this study is to examine the characteristics of the nerves and the small veins in the skin of people with fibromyalgia. The investigators will then use this information to identify possible processes in the skin that may help explain why some people feel pain relief with the study drug (duloxetine) and others do not. Duloxetine affects certain chemicals in the brain called neurotransmitters. An abnormality in these chemicals is thought to be related to fibromyalgia. Duloxetine is a selective serotonin and norepinephrine reuptake inhibitor (SNRI), similar to some drugs used for the treatment of depression. Duloxetine is approved for sale in the United States by the Food and Drug Administration (FDA) for the treatment of fibromyalgia.
The purpose of this study is to examine the characteristics of the nerves and the small veins in the skin of people with fibromyalgia. This information will then be used to identify possible processes in the skin that may help explain why some people feel pain relief with the study drug (milnacipran) and others do not. The investigators expect to learn more about the pathophysiology of fibromyalgia and the way in which milnacipran acts on these patients. The investigators hypotheses are: 1. The pathophysiologic basis of fibromyalgia in some patients may be due to a biochemical and/or morphological pathology among the sensory innervation. 2. Fibromyalgia patients may have different sites of innervation. 3. Milnacipran may have a therapeutic effect on some fibromyalgia patients. 4. Abnormalities in fibromyalgia patients may predict the likelihood of a good response to milnacipran.
Use of the drug Milnacipran will reduce ventricular lactate levels and processing time for completing complex tasks relative to placebo.
The purpose of this research study is to determine if a new mattress relieves the symptoms of fibromyalgia and improves sleep, and if this is the case, whether one type of mattress is better than the other in doing so.
To determine whether adding Ribose 5 grams 3 x day would improve quality of life, energy, sleep and cognitive function and decrease pain in patients with CFS and/or fibromyalgia (CFS/FMS).
This study assesses the benefits of intervention with gabapentin, Osteopathic Manipulative Medicine or both for improvement of the symptoms of Fibromyalgia. This study also seeks to determine whether these treatments will decrease the number and severity of tender points, improve structure, function and the overall pain level of each patient from the baseline of the study to the end. This study is designed to evaluate whether subjects subjectively experience an improved quality of life and increased function as a result of these interventions corresponding to objective improvements.
The purpose of this pilot study is to explore the potential usefulness of a heated lidocaine 70 mg and tetracaine 70 mg topical patch for the treatment of pain associated with myofascial trigger points.
The purpose of this study is to define subgroups of patients with somatoform disorders due to DSM-IV by immunological, psychological and genetic characterization.
The Control Study for the Multidisciplinary Approach to the Study of Chronic Pelvic Pain (MAPP) Research Network has been established to focus on a broader approach to the study of Interstitial Cystitis (IC)/Painful Bladder Syndrome (PBS) in men and women, and Chronic Prostatitis (CP)/Chronic Pelvic Pain Syndrome (CPPS) in men, than previously undertaken. Participants with no Urologic Pelvic Pain Syndromes as well as participants with specific conditions (Fibromyalgia (FM), Irritable Bowel Syndrome (IBS), Chronic Fatigue Syndrome (CFS)) are being recruited for the Trans-MAPP Control Study. These participants will act as a reference/control group for the Trans-MAPP Epidemiology & Phenotyping (EP) Study. As with many chronic pain disorders, IC and CP are poorly understood, and treatment is often not helpful. The goal of this study is to better understand how pain is felt in people with IC or CP. The MAPP Control Study is an observational study that will enroll participants from 6 Discovery Sites and 3 Satellite Sites across the U.S. The investigators will ask questions and gather information about the health and life of the participants for research purposes. The investigators hope that this study will lead to improvement in the treatment of IC and CP.