Articles: pain-management.
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Coronary artery disease · Oct 1994
Safety aspects of spinal cord stimulation in severe angina pectoris.
Spinal cord stimulation has been used over the past decade for the treatment of patients suffering from intractable angina pectoris, despite having received optimal medical therapy, and who are unsuitable for further surgical intervention. The clinical results are promising and several studies have shown that the antianginal effect of the treatment is associated with a reduction in myocardial ischemia. It has been suggested, however, that spinal cord stimulation may only attenuate the transmission of pain from the heart, without influencing myocardial ischemia. This is a major safety concern when applying this treatment strategy. ⋯ The results of this study do not indicate any unfavourable effects of spinal cord stimulation in severe angina pectoris in terms of an increase in the frequency or severity of myocardial ischemia during treatment with spinal cord stimulation.
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The placebo induces a significant analgesia on average in 35% patients with some variations according to the studied pathology and the modalities of the therapy. This placebo effect is especially influenced by the expectations and beliefs of the patient, the doctor, the environment and the quality of the doctor-patient relationship. As with a real psychogenic analgesia, this effect could partly result in a release of endogenous opioid substances. By a good relationship with his patient and a treatment corresponding to his expectations and his beliefs, the doctor induces a powerful placebo effect which increases the specific effects of his analgesic treatment.
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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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Clinical Trial
Epidural spinal cord stimulation in the treatment of severe peripheral arterial occlusive disease.
Epidural spinal cord stimulation (ESCS) has been suggested to improve microcirculatory blood flow and reduce amputation rates in patients with severe peripheral arterial occlusive disease (PAOD). Pain relief, limb salvage, and skin circulation were studied in 177 patients with ischemic pain caused by nonreconstructible PAOD who were receiving ESCS. Medical or surgical therapy had failed and vascular reconstruction was impossible in all cases. ⋯ Clinical improvement was associated with increased TcPO2, with limb salvage improving from 24.2 to 48.1 mm Hg in stage III (p < 0.02) and from 16.4 to 37.2 mm Hg in stage IV (p < 0.03) disease. A TcPO2 increase of more than 50% within the first 3 months after implantation was predictive of success. TcPO2 changes are correlated with the presence of adequate paresthesias in the painful area during the trial period.(ABSTRACT TRUNCATED AT 250 WORDS)