European journal of pain : EJP
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Randomized Controlled Trial
Validation of the PAC-SYM questionnaire for opioid-induced constipation in patients with chronic low back pain.
The Patient Assessment of Constipation Symptoms (PAC-SYM) questionnaire is a 12-item self-report instrument divided into abdominal, rectal and stool domains. ⋯ PAC-SYM is a reliable, valid and responsive measure of the presence and severity of opioid-induced constipation symptoms.
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Randomized Controlled Trial Comparative Study
Return to work after comparing outpatient multidisciplinary treatment programs versus treatment in general practice for patients with chronic widespread pain.
Former studies have questioned the quality and effectiveness of multidisciplinary rehabilitation for working-age adults with fibromyalgia and chronic widespread pain (CWP). High-quality trials are needed, and return to work should also be included as an outcome variable. This randomized study evaluated the return-to-work outcome of an extensive and a light multidisciplinary treatment program combining cognitive strategies and exercise versus treatment-as-usual initiated by a general practitioner, for CWP patients. ⋯ Both among men and women, independent of type of treatment, patients with poorer health (poor prognosis) were absent from work more days than patients with good prognosis. In our sample, higher age significantly increased the number of days absent from work, but only for women. The extensive outpatient multidisciplinary treatment program was effective in returning women to work.
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Randomized Controlled Trial
Effect of long-term neck muscle training on pressure pain threshold: a randomized controlled trial.
Muscle tenderness has been measured in several studies to evaluate effectiveness of treatment methods, but only short-term results have been reported so far. The aim of the present study was to evaluate the long-term effects of two different muscle training methods on the pressure pain threshold of neck muscles in women with neck pain. Altogether 180 woman with chronic, non-specific neck pain were randomized into three groups: neck muscle endurance training, neck muscle strength training and control groups. ⋯ Significantly higher changes in pressure pain threshold were detected at all six sites in the strength training group and at four out of six sites in the endurance training group compared to the control group. This is the first study to show an increase in pressure pain thresholds as a result of long-term muscle training. A decrease in neck pain was associated with reduced pressure pain sensitivity in neck muscles, showing that the pressure pain threshold may be a useful outcome measure of the effectiveness of neck muscle rehabilitation.
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Randomized Controlled Trial Multicenter Study Clinical Trial
Oxcarbazepine in painful diabetic neuropathy: a randomized, placebo-controlled study.
In this multicentre, placebo-controlled, 16-week trial, the efficacy and safety of oxcarbazepine monotherapy in patients with neuropathic pain of diabetic origin was evaluated. Eligible patients had a 6-month to 5-year history of neuropathic pain symptoms of diabetic origin and a pain rating of > or =50 units on the visual analogue scale (VAS). Oxcarbazepine was initiated at a dose of 300 mg/day and titrated to a maximum dose of 1800 mg/day. ⋯ Patients on oxcarbazepine were awakened less frequently due to pain than patients on placebo. Most adverse events were mild to moderate in severity, transient, and in line with the known tolerability profile of oxcarbazepine. These observations suggest that oxcarbazepine monotherapy, pending additional trials, may be efficacious and may provide clinically meaningful pain relief in patients with neuropathic pain of diabetic origin.
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Randomized Controlled Trial Clinical Trial
The effect of venlafaxine on ongoing and experimentally induced pain in neuropathic pain patients: a double blind, placebo controlled study.
The aim of this randomized double blind placebo controlled study was to investigate the effectiveness and the safety of venlafaxine XR 75 and 150 mg on ongoing pain and on quantitative sensory tests in 60 patients with neuropathic pain for 8 weeks. ⋯ The study showed significant effect of venlafaxine in the manifestations of hyperalgesia and temporal summation, but not on the ongoing pain intensity. Furthermore, the quantitative sensory tests provided complementing information to the clinical measures.