Articles: pain-clinics.
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Review Meta Analysis
Systematic review of patient history and physical examination to diagnose chronic low back pain originating from the facet joints.
Patient history and physical examination are frequently used procedures to diagnose chronic low back pain (CLBP) originating from the facet joints, although the diagnostic accuracy is controversial. The aim of this systematic review is to determine the diagnostic accuracy of patient history and/or physical examination to identify CLBP originating from the facet joints using diagnostic blocks as reference standard. We searched MEDLINE, EMBASE, CINAHL, Web of Science and the Cochrane Collaboration database from inception until June 2016. ⋯ Due to clinical heterogeneity, the evidence for the diagnostic accuracy of patient history and/or physical examination to identify facet joint pain is inconclusive. Patient history and physical examination cannot be used to limit the need of a diagnostic block. The validity of the diagnostic facet joint block should be studied, and high quality studies are required to confirm the results of single studies.
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Observational Study
Physician and Patient Survey of Taper Schedule and Family Physician Letters Following Discharged from the Acute Pain Service.
Following discharge, patients requiring high opioid doses may be at risk for both under- and overdosing, posing a major challenge to community physicians. The aim of this study was to examine the effectiveness and degree of satisfaction with a personalized taper schedule and physician letter through interviews of patients and physicians. ⋯ Both physicians and patients generally found the taper schedule and letter helpful in assisting them to taper off their opioid use. This is one way of bridging the gap in continuity of care between the acute and primary care providers while reducing the risk to patients during the transition period.
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Even though validation studies of the WHO analgesic ladder have indicated that the simple approach of the analgesic ladder can provide adequate pain control in most patients, prevalence studies have documented a high prevalence of pain in cancer patients. Little is known about how analgesics are actually prescribed for cancer pain. The aim of the study was to study prescriptions of analgesics during the entire disease trajectory in patients dying from cancer within five years of diagnosis. ⋯ Complete national data covering the complete disease trajectory in cancer patients dying within five years of diagnosis. The majority of patients do not receive treatment in concordance with the stepwise approach suggested by the WHO analgesic ladder.
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Complex regional pain syndrome (CRPS) is a poorly understood pain disorder of the limbs. Maladaptive cortical plasticity has been shown to play a major role in its pathophysiological presentation. Recently, there is increasing interest in the role of the basal ganglia (BG), since clinical findings and neuroimaging studies point to possible BG involvement in CRPS. ⋯ Moreover, several neuroimaging studies documented abnormalities in the BG and in the frontal, parietal and limbic cortical areas. These regions are functionally and anatomically connected in motor, pain and working memory networks. Put together, these findings call for further characterization of the dynamic cortical and subcortical interactions in CRPS.
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Comparative Study
Pulsed Radiofrequency to the Dorsal Root Ganglion in Acute Herpes Zoster and Postherpetic Neuralgia.
Latent varicella zoster virus reactivates mainly in sensory ganglia such as the dorsal root ganglion (DRG) or trigeminal ganglion. The DRG contains many receptor channels and is an important region for pain signal transduction. Sustained abnormal electrical activity to the spinal cord via the DRG in acute herpes zoster can result in neuropathic conditions such as postherpetic neuralgia (PHN). Although the efficacy of pulsed radiofrequency (PRF) application to the DRG in various pain conditions has been previously reported, the application of PRF to the DRG in patients with herpes zoster has not yet been studied. ⋯ PRF to the DRG is a useful treatment for treatment-resistant cases of herpes zoster and PHN. Particularly in herpes zoster patients with intractable pain, application of PRF to the DRG should be considered for pain control and prevention of PHN.Key words: Pulsed radiofrequency, dorsal root ganglion, herpes zoster, postherpetic neuralgia.