Articles: chronic-pain.
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Systematic review. ⋯ Clinical recommendations were made where appropriate using the GRADE/Agency for Healthcare Research and Quality approach, which imparts a deliberate separation between the quality of the evidence (i.e., high, moderate, low, or inconclusive) from the strength of the recommendation. The quality of evidence plays only a part as the strength of the recommendation reflects the extent to which we can, across the range of patients for whom the recommendations are intended, be confident that desirable effects of a management strategy outweigh undesirable effects.
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Studies have shown that spinal cord stimulation (SCS) can reduce chronic pain by at least 50% over prolonged periods, improve function and quality-of-life, reduce requirements for healthcare resources and enable return to work in appropriately selected patients. However, SCS does not provide pain relief in all patients and is an expensive, labor intensive and invasive procedure with complications and ongoing management that requires specialists with specific skills and judgment. ⋯ The aim of the article is to provide a clinical practice guide to the likely effectiveness of SCS in treating various types of chronic pain, as supported by the literature. The article will summarize indications and contraindications for SCS, provide guidance on the selection and timing for referral, and highlight the benefits and complications associated with the procedure.
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The Visual Analogue Scale (VAS), Numerical Rating Scale (NRS), Verbal Rating Scale (VRS), and the Faces Pain Scale-Revised (FPS-R) are among the most commonly used measures of pain intensity in clinical and research settings. Although evidence supports their validity as measures of pain intensity, few studies have compared them with respect to the critical validity criteria of responsivity, and no experiment has directly compared all 4 measures in the same study. The current study compared the relative validity of VAS, NRS, VRS, and FPS-R for detecting differences in painful stimulus intensity and differences between men and women in response to experimentally induced pain. ⋯ The findings are consistent with previous studies supporting the validity of each scale. The most support emerged for the NRS as being both (1) most responsive and (2) able to detect sex differences in pain intensity. The results also provide support for the validity of the scales for use in Portuguese samples.
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Although most cases of temporomandibular muscle and joint disorders (TMJD) are mild and self-limiting, about 10% of TMJD patients develop severe disorders associated with chronic pain and disability. It has been suggested that depression and catastrophizing contributes to TMJD chronicity. This article assesses the effects of catastrophizing and depression on clinically significant TMJD pain (Graded Chronic Pain Scale [GCPS] II-IV). ⋯ In addition, in the multivariable analysis adjusted by the same covariates previously described, the onset of clinically significant pain (GCPS II-IV) at the 18-month follow-up was associated with catastrophizing (odds ratio [OR] 1.72, P=0.02). Progression of clinically significant pain was related to catastrophizing (OR 2.16, P<0.0001) and widespread pain at baseline (OR 1.78, P=0.048). Results indicate that catastrophizing and depression contribute to the progression of chronic TMJD pain and disability, and therefore should be considered as important factors when evaluating and developing treatment plans for patients with TMJD.
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The aim of this study was to describe the clinical course of patients with chronic, non-specific neck pain undergoing a public health covered, exercise-based rehabilitation program and to identify predictors of poor outcome. A prospective cohort study was carried out on patients with non-specific neck pain (6 months or longer), referred by their general practitioner to a 6-session program, including education and individually tailored exercise. The primary outcome measure for the course of neck pain was the Northwick neck pain questionnaire (NPQ) administered on baseline, discharge, and 1 year from discharge. ⋯ Pain-related medication intake independently predicted poor short- (OR 4.24; 95% CI 1.83-9.84; p = 0.001) and long-term (OR 2.69; 95% CI 1.19-6.06; p = 0.017) outcome, and catastrophizing (OR 2.91; 95% CI 1.31-6.48; p = 0.009) predicted poor outcome at 1 year. Our cohort of patients with chronic neck pain undergoing an exercise-based rehabilitation program reported improvement by or beyond MICD-NPQ in 55% cases on discharge and in 44% cases at 1 year. Poor outcome was predicted by pain-related medication intake in the short and long term, and by catastrophizing in the long term.