Pain research & management : the journal of the Canadian Pain Society = journal de la société canadienne pour le traitement de la douleur
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Randomized Controlled Trial Comparative Study Clinical Trial
A randomized treatment study to compare the efficacy of repeated nerve blocks with cognitive therapy for control of chronic head and neck pain.
This prospective study compared the efficacy of two antinociceptive modalities: nerve blocks and cognitive therapy. A consecutive series of patients receiving nerve block therapy was invited to take part in a six-week randomized comparison of nerve blocks and cognitive therapy. Sixty-eight of 102 patients approached by telephone agreed to participate. ⋯ Mean VAS scores in the cognitive therapy group rose during the trial. However, the mean VAS score of the remaining four in the last week was below the initial group mean. Patients who had been receiving nerve blocks proved willing to remain in the study if allocated to the nerve block group and unwilling to remain in the cognitive therapy group while foregoing their accustomed treatment.
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To investigate the role of disturbed sleep in the daily functioning of persons with chronic pain. subjects and ⋯ Sleep disruption is usually considered to be a consequence of the pain experience. However, the results of the present study reinforce the view that sleep disturbance may have a bidirectional relation with other features of chronic pain. Future studies should confirm that repairing disrupted sleep leads to an improvement in patients' daily activity and a reduction in their suffering.
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The effects of specific emotional states on a laboratory pain task were tested by examining the behavioural, verbal and psychophysiological responses of 80 student volunteers (50% female). Participants were assigned to one of four Velten-style emotion-induction conditions (ie, anxiety, depression, elation or neutral). The sexes of experimenters were counterbalanced. ⋯ Emotion induction did not have a discernable effect on pain tolerance or severity ratings in the elation condition. A pattern of participant and experimenter sex effects, as well as trials effects, was seen in the physiological data. The influence of negative affective states (ie, anxiety and depression) on acute pain are discussed along with the unique contributions of behavioural, verbal and physiological response systems in understanding the interactions of pain and emotions.
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Ongoing research continues to expand the knowledge of neuropathic pain. It is vital that established treatments and valuable discoveries ultimately improve patient care. ⋯ New, and even conventional, therapies are often not pursued, despite inadequate pain control. Several issues are discussed, including patient barriers to seeking pain management, patient and physician barriers to analgesic drug therapy, and appropriate use of and access to multidisciplinary pain centres. Failure to implement therapeutic advances in pain management not only hinders improvement in patient care, but also may render futile decades of research. Widespread professional, patient and public education, as well as continued interdisciplinary research on treatment barriers, is essential.
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Comparative Study Clinical Trial
Perceived cognitive deficits, emotional distress and disability following whiplash injury.
To describe the pattern of perceived cognitive deficits in patients with whiplash injury, to examine the relation between perceived cognitive deficits and disability, and to examine the determinants of perceived cognitive deficits in patients with whiplash injury. ⋯ The potential benefits of focusing interventions on the management of anxiety and depression in the rehabilitation of patients with whiplash injuries are discussed.