Articles: chronic-pain.
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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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The analgesic effect of acupuncture in chronic gonarthrosis pain was studied in a placebocontrolled trial completed by 97 patients. Each patient was treated twice a week, receiving 10 acupuncture treatments in all. Before and after tee course of treatment all patients were examined by an unbiased independent examiner and the overall pain score was measured over 10 days using VAS scales; functional parameters (resilience) were measured with a modified Lysholm questionnaire. ⋯ After ten treatments the overall reduction in pain score was 47.5% in the verum group (follow-up 48.2%), and 26.1% in the placebo group (follow-up 26.1%). The results are statistically significant (P<0.05); they show that in gonarthrosis pain the analgesic effect of verum acupuncture exceeds that of placebo acupuncture. Measurement of the functional parameters according to the Lysholm score showed no significant change.
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Quality assurance with regard to pain treatment is a major concern of the German section of the International Association for the Study of Pain (IASP). For this reason, efforts to reach a consensus on guidelines for diagnostic and therapeutic procedures have been intensified and include educational endeavours as a basis for state-of-the-art practice. The German IASP section has implemented a postgraduate educational programme on pain treatment for psychologists. ⋯ After completion of the training in psychotherapy, a certificate will be issued if the student fulfils the following requirements: (1) attendance at 150 classes on pain syndromes, their anatomical and physiological basis, and their medical treatment, psychological methods of pain assessment and treatment, and effective ingredients of psychological treatment for pain; (2) experience in the treatment of patients with chronic pain; and (3) submission of 10 reports on assessments and treatments of chronic pain patients under supervision. To ensure training on a regular basis, the educational programme is offered to members of the IASP jointly by the German IASP and the Academy of the German Psychological Association. A sequence of eight modules covering the curriculum is repeated at least every 2 years, thus permitting entry to the programme at any time.
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Interpleural analgesia is a method of postoperative analgesia that was developed by Kvalheim and Reiestad in 1984. The main indication is postoperative pain after unilateral thoracic and upper abdominal surgery. Many authors report good analgesic effects and better postoperative lung function following cholecystectomy. ⋯ The local anaesthetic of choice is bupivacaine (in concentrations of 0.25-0.75%, injection volumes of 10-40 ml, with or without epinephrine, applied as bolus or infusion), but others, such as lidocaine or morphine, are also being tested. Risks involved in this method are pneumothorax when the catheter is placed blind and the systemic toxicity of the local anaesthetic. This review provides information on the mechanism of action, the technique, the clinical use to date and possible risks.
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Modern concepts of pain therapy involve neuronal mechanisms of endogenous analgesia. Recent animal experiments have provided new insights into the anatomy, physiology and neurobiology of endogenous antinociception. We have shown that antinociception can be maximally activated by disinhibition-and not by direct electrical or chemical excitation-in the midbrain periaqueductal grey matter. ⋯ The high order in the discharges of these neurons is maintained, at least in part, by tonically active descending systems. Thus, the spinal shock syndrome seen in some species after acute spinalisation may result from the loss of order in spinal neuronal discharges normally provided by the brain. The use of modern methods in studies of the functional neuroanatomy, neurophysiology and neurobiology of endogenous antinociception may help in the achievement of better application of results from basic sciences to clinically relevant pain problems.