Pain physician
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A major component of a systematic review is an assessment of the methodological quality and bias of randomized trials. The most commonly utilized methodological quality assessment and bias assessment for randomized trials is by the Cochrane Review Group. While this is not a "gold standard," it is an indication of the current state-of-the-art review methodology. There is, however, no specific instrument to assess the methodological quality of manuscripts published for interventional techniques. ⋯ We have developed a new comprehensive instrument to assess the methodological quality of randomized trials of interventional techniques. This instrument is superior to Cochrane review methodology criteria in that it provides more extensive and specific information for interventional techniques that will be useful in assessing the methodologic quality and bias of interventional techniques.
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The major component of a systematic review is assessment of the methodologic quality and bias of randomized and nonrandomized trials. While there are multiple instruments available to assess the methodologic quality and bias for randomized controlled trials (RCTs), there is a lack of extensively utilized instruments for observational studies, specifically for interventional pain management (IPM) techniques. Even Cochrane review criteria for randomized trials is considered not to be a "gold standard," but merely an indication of the current state of the art review methodology. Recently a specific instrument to assess the methodologic quality of randomized trials has been developed for interventional techniques. ⋯ We have developed a new comprehensive instrument to assess the methodological quality of nonrandomized studies of interventional techniques. This instrument provides extensive information specific to interventional techniques is useful in assessing the methodological quality and bias of observational studies of interventional techniques.
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Randomized Controlled Trial
Concordant provocation as a prognostic indicator during interlaminar lumbosacral epidural steroid injections.
Interlaminar epidural steroid injection is a well-established intervention for the treatment of radicular pain. Pain is commonly reported during the injection into the epidural space; this provocation is typically either concordant or discordant with the patient's baseline pain. It is not well known how this provocation pain relates to treatment outcomes. ⋯ The concordant group demonstrated significantly higher pain reduction as compared to the discordant group. There were no significant differences between the 2 groups in terms of improved function or reduced analgesic requirements. Concordant provocation during interlaminar epidural injection may be a predictor of outcome.
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Randomized Controlled Trial
Thoracic interlaminar epidural injections in managing chronic thoracic pain: a randomized, double-blind, controlled trial with a 2-year follow-up.
Reports of prevalence of spinal pain indicate the prevalence of thoracic pain in approximately 13% of the general population compared to 32% of the population with neck pain and 43% of the population with low back pain during the past year. Even though, thoracic pain is less common than neck or low back pain, the degree of disability resulting from thoracic pain disorders seems to be similar to other painful conditions. Interventions in managing chronic thoracic pain are also less frequent, leading to the paucity of literature about various interventions in managing chronic thoracic pain. Thoracic intervertebral discs and thoracic facet joints have been shown to be pain generators, even though thoracic radicular pain is very infrequent. Thoracic epidural injections are one of the commonly performed procedures in managing thoracic pain. The efficacy of thoracic epidural injections has not been well studied. ⋯ Based on the results of this trial, it is concluded that chronic thoracic pain of non-facet joint origin may be managed conservatively with thoracic interlaminar epidural injections with or without steroids.
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Randomized Controlled Trial
High dose intrathecal morphine for major abdominal cancer surgery: a prospective double-blind, dose-finding clinical study.
Despite 30 years of clinical research, we still do not know the optimal dose of intrathecal morphine (ITM) when used alone. ⋯ One mg ITM provided superior analgesia for 48 hours postoperative compared with 0.2 mg and 0.5 mg ITM with a nonsignificant difference in the incidence of side effects. Further studies of larger sample size are recommended to confirm these findings.