Current pain and headache reports
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Cluster headache is rare, occurring in less than 1% of the population. Studies suggest that, in addition to the pain and associated autonomic disturbances recognized to be characteristic of the syndrome, patients also may experience nausea, photophobia, behavioral agitation, or restlessness. A decreasing male:female ratio also has been noted, perhaps attributable to lifestyle trends adopted by more women that were previously associated with men, such as tobacco use, alcohol consumption, and working outside of the home. ⋯ The emerging understanding of the genetics of cluster headache increasingly suggests a genetic component, with familial transmission now recognized to be more common than previously appreciated. Head trauma, coronary artery disease, and migraine appear to be present in more patients with cluster headache than can be explained by chance alone. Ethnic and racial differences in prevalence are less well understood.
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Curr Pain Headache Rep · Apr 2003
ReviewThe psychiatric management of end-of-life pain and associated psychiatric comorbidity.
Involvement by psychiatrists in the care of patients who are terminally ill has been limited historically; however, psychiatrists increasingly are participating in the care of these people who are facing the most challenging times of their lives. Pain management is considered to be an area of subspecialization for psychiatrists beyond their traditional role of being psychopharmacologists and psychotherapists. Biologically focused psychiatrists are able to address neuropsychiatric disorders, including pain and depression in the medically ill, and actively improve the quality of life for dying patients and their family members. ⋯ Beginning with an example of the scientific aspects of cancer-related treatment from a patient's perspective, and into the major treatment considerations, this article addresses pain, its recognition, and management challenges when the end of life approaches. The prompt recognition of frequently overlooked and underestimated concomitant depressions, delirium, dementia, and other mental disorders is important for mental health specialists. The importance of psychiatric care for patients who are terminally ill and the role of psychiatrists in the phase of care also are discussed.
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Curr Pain Headache Rep · Apr 2003
ReviewCognitive impairment in patients with chronic pain: the significance of stress.
This review article examines the role of emotional distress and other aspects of suffering in the cognitive impairment that often is apparent in patients with chronic pain. Research suggests that pain-related negative emotions and stress potentially impact cognitive functioning independent of the effects of pain intensity. The anterior cingulate cortex is likely an integral component of the neural system that mediates the impact of pain-related distress on cognitive functions, such as the allocation of attentional resources. A maladaptive physiologic stress response is another plausible cause of cognitive impairment in patients with chronic pain, but a direct role for dysregulation of the hypothalamic-pituitary-adrenocortical axis has not been systematically investigated.
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Cluster headaches are characterized by unilateral paroxysmal attacks of severe pain with associated symptoms. The headaches occur during particular sleep stages and are associated with other chronobiologic factors. Several sleep disorders have been associated with the occurrence of cluster headache; multiple hormonal influences affect the relationship between sleep and headache. ⋯ This article examines the relationship between the various sleep disorders and cluster headache, and reviews current research. Normal and abnormal sleep and details of treatments for specific sleep disorders that may decrease the frequency and severity of cluster headaches also are discussed. The relationship between obstructive sleep apnea, which is the most common sleep disorder, and cluster headache is discussed in detail.