Der Schmerz
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There have been major advances in knowledge and efficient techniques for pain relief have been developed during recent years. Nevertheless, many patients on surgical wards still suffer from severe pain following surgery or trauma. Therefore, in the University hospital of Kiel (Germany) an anaesthesiology-based acute pain service (APS) was established in 1985 to improve this situation.
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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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For diagnosis of the pain origin in reflex sympathetic dystrophy (RSD), sympathetic blocks, including the intravenous regional guanethidine (IVRG) block after Hannington-Kiff, are recommended. Since the results obtained with this kind of block are sometimes unsatisfactory, modifications were made to increase its technical efficacy. ⋯ The modified IVRG block seems to have a high diagnostic value with respect to the presence of a sympathetic contribution to the pain in RSD. As a reduced GA dose/block is used, this form of the block appears to be safer than other kinds of sympathetic blocks.
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The number of AIDS patients is steadily increasing. According to the literature these patients are often in severe pain. ⋯ The high incidence of complicated neuropathic pain syndromes in AIDS patients requires a sophisticated therapeutic approach. Closer cooperation between AIDS specialists and pain specialists, comparable to that already existing for other patient groups, is therefore desirable.
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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.