Articles: pain-measurement.
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Pain ratings and pain-related cerebral potentials in response to noxious stimuli were investigated under hypnotic hypo- or hyperalgesia. Out of a sample of 50 subjects the 10 most highly hypnotizable were selected using the Stanford Hypnotic Susceptibility Scale. Phasic pain was induced by brief electrical stimuli intracutaneously applied to the subject's left middle finger. ⋯ In contrast, the amplitudes of the late somatosensory potentials evoked by the pain-inducing stimuli were not modified in either of the suggestive states. Furthermore, no effects of hypnosis were found on AEPs and on the power spectra of the spontaneous EEG. The results are discussed on the basis of a dissociation of sensory and affective components of pain under hypnosis.
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Previous reports suggest that the outcome (synergism, antagonism, summation) of opioid-barbiturate interactions may depend on the depth of anesthesia. One aim of the present study was to determine whether pentobarbital, alone and in combination with morphine, blocks awakening caused by noxious stimulation in a dose-related manner: the more intense the noxious stimulation, the more pentobarbital is required to suppress the response. A second aim of the study was to determine whether the pentobarbital-morphine anesthetic interaction depends on the depth of anesthesia measured in terms of intensity of noxious stimulation required for behavioral arousal (recovery of the righting reflex). ⋯ The results suggest that the depth of anesthesia can be measured in terms of intensity of noxious stimulation required for arousal and that the outcome of barbiturate-opioid anesthetic interaction depends on the depth of anesthesia.
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Schweiz. Rundsch. Med. Prax. · Mar 1993
Review[Pain assessment and documentation in patients with tumors: theory and reality].
Each tumor patient with pain is not only entitled to a careful diagnostic workup and to effective treatment of his pain syndrome, but also to a clear and useful documentation of the course of his pain(s). This documentation ('pain evolution chart') should at least include the main location(s) of the treated pain and the varying pain intensity during the course of the day as well as at night. A respective pain documentation instrument, the St. ⋯ The 'pain evolution chart' should be a regular part of the patient's hospital chart, as it forces the patient and his care-givers to cope more constructively with the present pain syndrome. The (well instructed) patient himself is responsible for an accurate and realistic pain documentation. Such longitudinal 'pain evolution charts' are not only useful for clinical oncology practice but also for clinical pain and analgesic research.
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An increasing number of papers deal with immunological factors in headache syndromes such as migraine and cluster headache. The aim of this review is to give an overview of the factors that have been measured and to assess their reliability and relevance for the pathogenesis of these headaches. Most of the studies are handicapped by methodological problems, especially the different classifications of headaches, the lack of adequate controls and methodological problems with the measurement of certain immune parameters. ⋯ Although the immunological changes have been shown to be valid, their pathogenesis in these headaches is unclear. With the increasing recognition of the existence of a neuroimmunologic network, alterations in each system should always be considered to be associated with changes in an other. Acute or chronic pain seems to trigger immunological abnormalities.
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Social science & medicine · Mar 1993
Comparative StudyComparing nurses' and patients' pain evaluations: a study of hospitalized patients in Kuwait.
All eligible patients hospitalized on the general medical, surgical and pediatric wards of a district hospital in Kuwait during the first 2 weeks of April 1990 (N = 199) were interviewed about their pain and the medical care provided. Patients rated their current pain using a 0-10 visual analogue scale (VAS) on which 0 was labelled 'no pain' and 10 'unbearable pain', and also the least and worst levels of pain which they had experienced during the previous 24 hr. Pediatric patients rated their mood at these times using a cartoon faces scale ([1]: McGrath P. ⋯ Also, when specifically questioned, a substantial proportion of patients stated that pain had had a negative impact on their mood and activity. Various explanations for these findings are discussed, and their implications for effective pain management. Some of the special problems facing nurses in Kuwait are considered.