Articles: chronic.
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In rheumatology, all of the more than 400 specified syndromes are associated with pain. In the conceptual discussion on the multidimensional influences postulated to explain the development of chronic pain, fibromyalgia has gained increasing interest. Fibromyalgia (fibrositis) is an unspecific soft-tissue disorder with chronic wide-spread musculoskeletal pain and palpable hypersensitivity at fibrositic tender points. ⋯ Histochemical investigations on muscle biopsy and biochemical tests have revealed unspecific changes but no characteristic muscle abnormality. It is supposed that the clinical features may result from central neurohumoral dysfunction combining with peripheral mechanisms to result in hyperalgesia. An integrated therapeutic concept with a reassuring and positive doctor-patient relationship can be helpful in achieving satisfactory treatment results.
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The article describes the interdisciplinary treatment of chronic pain at the Center of Pain Studies (CPS). The CPS is an intergral part of the Rehabilitation Institute in Chicago. An essential part of the program is a 1-day outpatient evaluation in which members of all disciplines take part. ⋯ General aims of the treatment are to return to productive life, improve emplopyability, increase activity level, improve mobility, apply pain management techniques, and improve coping. The program is monitored by an evaluation/follow-up system. Success criteria of the 6-month follow-up for the years 1987-91, such as less daily downtime in 58-78% of the patients, more time out on weekends in 40-68%, return to work in 50-67% and reduced depression in 37-70%, give an impression of the effectiveness of the pain management program.
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Despite its importance for chronic pain diseases, pain-related disability is a poorly defined concept with theoretical deficits. The distinction between impairment, disability, and handicap proposed by the WHO is an important contribution to clarification of the disability construct. With reference to four criteria (underlying disability construct, degree of behaviour generalization, assessment mode, scope) different assessment procedures of pain-related disability are presented and the advantages and disadvantages of each are discussed. ⋯ The results from four data sets concerning different aspects of reliability and validity confirm the good psychometric properties of the instrument. The instrument can be used in chronic pain research as well as in clinical contexts. It is recommended that subjective disability data be complemented by behavioral observation and additional data sources (e.g. assessment of disability by the spouse/partner).
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A multidisciplinary approach, acknowledged as being the best treatment strategy for a wide range of chronic pain patients, requires cooperation at least between trained professionals in the medical and the psychological disciplines. Psychological criteria are formulated to bridge persisting gaps in the interdisciplinary implementation of pain treatment strategies.
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Nociceptive stimuli are modulated at the dorsal horn of the spinal cord. This modulation is performed by various systems working independently complementarily, additively or supra-additively. Non-opioid analgesics relieve pain without a motor blockade. ⋯ Lysine acetylsalicylic acid (L-ASA) has been given intrathecally for the therapy of severe cancer pain and chronic back pain. In most patients good analgesia was observed up to 2 months after a single injection. If neurotoxity can be excluded, L-ASA may be an alternative in the therapy of cancer pain before neurodestructive therapy is done.