The Clinical journal of pain
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Randomized Controlled Trial Multicenter Study Comparative Study
Hydrocodone/acetaminophen and tramadol chlorhydrate combination tablets for the management of chronic cancer pain: a double-blind comparative trial.
The purpose of this study was to compare the analgesic efficacy and tolerability of opioids hydrocodone and tramadol in the relief of cancer pain. ⋯ There was no superior analgesic efficacy with the administration of hydrocodone/acetaminophen when compared to patients receiving tramadol in the relief of cancer pain. Tramadol produced more mild side effects than hydrocodone.
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Whether individuals with chronic low back pain (CLBP) are willing to accept their pain, is of interest to pain management, but how far is the acceptance of pain related to a good quality of life (QoL)? Recently available measures now enable this question to be investigated; these are (1) the Chronic Pain Acceptance Questionnaire (CPAQ) and a revised version, here described as a short-form (SF-CPAQ), and (2) the World Health Organization Quality of Life Assessment (WHOQOL)-Pain, which is composed of the generic WHOQOL-100 profile (25 facets in 6 domains), and 4 additional facets within a specific pain and discomfort module (PDM). ⋯ The results indicate that present pain level and whether or not pain is accepted play an important role in the QoL of patients with chronic pain. Additionally, the results provide construct validity for the WHOQOL-Pain and SF-CPAQ measures, especially dimensions of pain willingness and activities engagement. The findings have implications for the way health care is delivered, particularly for the role of acceptance-based treatments for individuals with CLBP.
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Clinical Trial
Vaginal pressure-pain thresholds: initial validation and reliability assessment in healthy women.
Pelvic muscle pain syndromes are poorly understood and lack reliable diagnostic criteria. Furthermore, animal models suggest that somatic pain can influence the development of pelvic visceral pain dysfunction. To develop psychophysical measures to facilitate diagnosis of pelvic floor myofascial pain syndromes, this pilot was designed to preliminarily test the feasibility, reliability, and validity of pressure-pain thresholds (PPTs) to identify and quantify pelvic floor pain sensitivity. ⋯ These data suggest that PPTs may prove to be valid and reliable measures of pelvic floor somatic pain sensitivity in healthy women. Broader studies including a pelvic pain cohort should be conducted to corroborate these results and determine the technique's external validity and clinical relevance.
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Randomized Controlled Trial Comparative Study
Topical amitriptyline versus lidocaine in the treatment of neuropathic pain.
Oral amitriptyline, a tricyclic antidepressant, is effective for treating neuropathic pain. We conducted a double-blind, randomized, placebo-controlled crossover study to evaluate the efficacy of topical 5% amitriptyline and 5% lidocaine in treating patients with neuropathic pain. ⋯ This randomized, placebo-controlled crossover study examining topical 5% amitriptyline and 5% lidocaine in the treatment of neuropathic pain showed that topical lidocaine reduced pain intensity but the clinical improvement is minimal and that topical 5% amitriptyline was not effective.
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Randomized Controlled Trial
The analgesic effect of botulinum-toxin A on postwhiplash neck pain.
The effectiveness of botulinum neurotoxin type A (BTXA) injections in relieving the neck pain and reduced motion that evolve after whiplash injury (WI) has been controversial. ⋯ Study results suggest that BTXA treatment has some efficacy when administered within 1 year of the WI. However, a large, well-designed clinical trial is needed to draw final conclusions.