The Clinical journal of pain
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Randomized Controlled Trial Comparative Study Clinical Trial
Tiagabine and gabapentin for the management of chronic pain.
Agents that modulate gamma-aminobutyric acid transmission, such as gabapentin, are widely used for the management of chronic pain disorders/syndromes; however, the usefulness of the selective gamma-aminobutyric acid reuptake inhibitor tiagabine in this therapeutic area has yet to be investigated. This study evaluated the effectiveness and safety of tiagabine and gabapentin for the treatment of chronic pain. ⋯ These results suggest that tiagabine and gabapentin are effective in the management of chronic pain, with tiagabine having a greater beneficial effect on sleep quality.
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Comparative Study
Are the changes in postural control associated with low back pain caused by pain interference?
Voluntary limb movements are associated with involuntary and automatic postural adjustments of the trunk muscles. These postural adjustments occur prior to movement and prevent unwanted perturbation of the trunk. In low back pain, postural adjustments of the trunk muscles are altered such that the deep trunk muscles are consistently delayed and the superficial trunk muscles are sometimes augmented. This alteration of postural adjustments may reflect disruption of normal postural control imparted by reduced central nervous system resources available during pain, so-called "pain interference," or reflect adoption of an alternate postural adjustment strategy. ⋯ The results suggest that altered postural adjustments of the trunk muscles during pain are not caused by pain interference but are likely to reflect development and adoption of an alternate postural adjustment strategy, which may serve to limit the amplitude and velocity of trunk excursion caused by arm movement.
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Comparative Study Clinical Trial
A prospective cost-effectiveness study of trigeminal neuralgia surgery.
Approximately 8000 patients with trigeminal neuralgia undergo surgery each year in the United States at an estimated cost exceeding $100 million. We compared 3 commonly performed surgeries (microvascular decompression, glycerol rhizotomy, and stereotactic radiosurgery) to evaluate the relative cost-effectiveness of these operations for patients with idiopathic trigeminal neuralgia. ⋯ This analysis supports the practice of percutaneous surgeries for older patients with medically unresponsive trigeminal neuralgia. At longer follow-up intervals, microvascular decompression is predicted to be the most cost-effective surgery and should be considered the preferred operation for patients if their risk for general anesthesia is acceptable. More data are needed to assess the role that radiosurgery should play in the management of patients with trigeminal neuralgia.
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Randomized Controlled Trial Comparative Study Clinical Trial
Sensitivity of pain rating scales in an endoscopy trial.
The purpose of this study was to compare the sensitivity of two commonly used pain-rating scales, the Visual Analog Scale and the 4-point verbal rating scale. Both are considered reliable and valid, but previous studies regarding sensitivity of rating scales have lead to different conclusions, and there is no firm agreement as to the best scale to choose. ⋯ Because each individual provided one Visual Analog Scale and one 4-point verbal rating scale rating for the same pain experience, the ability of the two scales to detect differences between groups of pain ratings could be compared. The use of a simulation model enabled estimation of a power function and reduced the probability of basing the conclusion on a chance finding.
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Comparative Study
Patient satisfaction with treatment for chronic pain: predictors and relationship to compliance.
Patient satisfaction with treatment has been extensively researched in a variety of medical patients. However, satisfaction with treatment of chronic pain has received considerably less attention. The present study sought to identify the predictors of patient satisfaction with treatment of chronic pain. In addition, the relationship between patient satisfaction and compliance with treatment recommendations was explored. ⋯ Results suggest the importance of distinguishing between satisfaction with care and satisfaction with improvement in assessments. Satisfaction with treatment of chronic pain is not merely a matter of pain relief. To increase the probability of treatment success and satisfaction, attention to the interpersonal aspects of the health care provider-patient relationship appear critical. Explanations for satisfaction's stronger relationship to health care provider-rated compliance were discussed.