The Clinical journal of pain
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The development of an acute pain service in a community hospital is described. A plan of operation is proposed, including accurate record maintenance to avoid complications. Results are presented on over 10,000 patients treated by the acute pain service.
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Opioid receptors are described and differentiated by their affinities for specific agonists and antagonists. Their sites of action and receptor activities are discussed. Tachyphylaxis and tolerance are described and methods for overcoming these problems are recommended. Suggestions are made regarding future drugs to act at specific receptors.
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Capsaicin application to human nasal mucosa was found to induce painful sensation, sneezing, and nasal secretion. All of these factors exhibit desensitization upon repeated applications. The acute effects induced by capsaicin (300 micrograms/100 microliters) application to the nasal mucosa were studied in healthy volunteers and cluster headache patients. ⋯ Likewise, the time course of desensitization to the painful sensation and nasal secretion induced by capsaicin applied for five consecutive days in control subjects was almost superimposable to those observed in the nasal mucosa of cluster headache patients. The number of spontaneously occurring attacks was significantly reduced in the 60 days after the end of capsaicin treatment. Whether the beneficial effect induced by capsaicin application to the nasal mucosa could be ascribed to a specific action on sensory neurons remains unknown.
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Optimal care of surgical patients includes effective control of incisional pain. Attention is beginning to be focused on new in-hospital services created to improve the management of postoperative pain. Additional information regarding the organization and operation of this type of service, especially in the framework of a university hospital, is presented. The specific roles of an academic anesthesiologist involved in acute pain management are: to provide leadership by the development of effective services, to clarify through research optimal treatments, to train future practitioners in the management of acute pain, and to serve as a consultant for improving pain control for the whole medical community.