Current pain and headache reports
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Post-traumatic myofascial pain describes the majority of chronic head and neck pain seen in clinical practice. If conditions such as vascular headaches, neuropathic pain, degenerative cervical joint disease, and dental pain are excluded, myofascial tissues are directly or indirectly involved in all other forms of head and neck pain. The most common of these include temporomandibular disorders, neck pain such as whiplash-associated disorder, cervicogenic headaches, and tension-type headaches. The pathophysiology of these conditions is not widely understood; however, peripheral and central mechanisms appear to play a role.
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The first International Headache Society classification defined tension-type headaches by itemizing characteristics of migraines that tension-type headaches did not possess. As a result, tension-type headaches (episodic and chronic) remain the most nonspecific of all the commonly observed primary headaches. Until recently, there has been little impetus on the part of the pharmaceutical industry to investigate tension-type headaches; many of the potentially useful drugs are now generic and unprofitable. ⋯ The few studies that exist support the use of age-old standard drug classes, the tricyclic antidepressants and the nonsteroidal anti-inflammatory drugs. New research is emerging that points to the potential use of botulinum toxin and nitric synthase inhibitors. More scientifically rigorous clinical studies are needed.
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Curr Pain Headache Rep · Oct 2002
ReviewBehavioral and psychologic aspects of the pathophysiology and management of tension-type headache.
Behavioral and psychologic factors in tension-type headache are reviewed with reference to pathophysiology, comorbid psychiatric disorders, headache triggers, and behavioral treatment, including the efficacy of behavioral treatments, brief minimal contact administration of behavioral treatment, therapeutic mechanisms underlying the effectiveness of behavioral treatments, and the integration of drug and behavioral treatments. Anxiety or depression may contribute to central sensitization that underlies frequent tension-type headaches. ⋯ Available drug and behavioral treatments are effective for episodic tension-type headache, but are only moderately effective for chronic tension-type headaches. The combination of behavioral and preventive drug therapies may improve outcomes for patients with chronic tension-type headache.
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Fibromyalgia is a chronic pain syndrome of unknown etiology characterized by diffuse pain and tender points, which have been present for more than 3 months. Many patients with systemic illnesses can have diffuse pain similar to that found in fibromyalgia, including rheumatic diseases such as polymyalgia rheumatica, rheumatoid arthritis, idiopathic inflammatory myopathy, systemic lupus erythematosus, and joint hypermobility. ⋯ In addition, there has been interest throughout the past 10 years in infectious diseases including hepatitis C, Lyme disease, coxsackie B, HIV, and parvovirus infection, which may cause or trigger fibromyalgia. This paper provides a framework to use when identifying these diseases as part of the evaluation of a patient with chronic widespread musculoskeletal pain.
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Curr Pain Headache Rep · Aug 2002
ReviewHeadache and Chiari I malformation: clinical presentation, diagnosis, and controversies in management.
The Chiari I malformation is a cerebellar anomaly of uncertain origin, defined in part as tonsillar herniation of at least 3 to 5 mm below the foramen magnum; it is associated with crowding of the craniocervical junction. It is the most frequent of the Chiari malformations and is associated with headaches, syringohydromyelia, and hydrocephalus. The clinical manifestations are related to direct compression of neural tissues and abnormal cerebrospinal fluid dynamics. ⋯ Incidental magnetic resonance imaging discovers Chiari I in one third of patients who do not have clinical symptoms. Headaches in the occipital-suboccipital region or those that are of cough-type suggest symptomatic Chiari I malformation. Suboccipital craniectomy is performed for patients with Chiari I malformation who have neural compression syndromes of the brainstem and spinal cord, select headache types, and other uncommon conditions that are not the topic of this review.