Articles: chronic.
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A review of studies on migraine therapy shows a large heterogeneity in the clinical evaluation of different drugs and behavioral approaches. The percentages of efficacy of beta-blockers or behavior therapy (relaxation, biofeedback) range from 30% to 80%. Methodological differences from one author to another in the design and conduct of the studies might be causes of this variation. ⋯ Double-blind and placebo-controlled studies are often required, but this demand often cannot be niet in empirical reality because of the individuality of the patient or the heterogeneity of the symptoms. We discuss some alternative approaches that could be used in empirical research on headache therapy. The application of single-case experiments as well as methods of time-series analysis are described as a more appropriate approach to the evaluation of studies on chronic headaches.
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Subcutaneous self-administration of morphine with a "pain pen", a semiautomatic mechanical injection system about the size of a penholder, was tested in nine patients with severe chronic pain of malignant origin. During a period of treatment of 12-100 days (on an outpatient basis in three patients) side-effects of subcutaneous morphine could only be observed during a short-lasting initial period of adaptation. ⋯ There were no hygienic problems, and the patients learned the technique of self-injection within a few days. This system may be especially suitable for patients with gastrointestinal incompatibility of oral opiate preparations, e.g. patients with multiple drug intake.
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Tick-borne borreliosis (Borrelia burgdorferi) is a common and complex disorder affecting the skin, the joints and the nervous system. It progresses through different clinical stages. The clinical spectrum of neuroborreliosis has expanded since the introduction and widespread application of specific serological tests. ⋯ Therefore, borreliosis can be assumed to produce a painful skin dystrophy like SRD or ACA by direct injury to the sympathetic nerves even in the early clinical stage of the infection. The main conditions to be considered in the differential diagnosis are polymyalgia rheumatica; lumbar disk herniation; inflammatory radiculopathies of other origin (e.g. herpes zoster); painful neuropathies, including the diabetic thoraco-abdominal form; internal disorders of chest and abdomen with referred pain; lymphocytic meningitis of other origin, encephalomyelitis; and sympathetic reflex dystrophy. High-dose penicillin G i.v. is a potent analgesic in all patients with tick-borne neuroborreliosis.
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This article reviews the methods currently in use for the measurement of chronic pain. The most important items for inclusion in questionnaires about the history and in pain diaries to elicit data on the time-course of pain are presented, and both the aims and the advantages and disadvantages of various strategies are discussed. The documentation of chronic pain in outpatients would allow answers to some questions concerned with medical epidemiology if practiced in a large number of therapeutic institutions, especially if the data were processed and evaluated by microcomputer.