Articles: analgesics.
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The use of opioids in the long-term management of chronic low-back pain (LBP) appears to be increasing. Despite this trend, the benefits and risks of these medications remain unclear. ⋯ Despite concerns surrounding the use of opioids for long-term management of chronic LBP, there remain few high-quality trials assessing their efficacy. The trials in this review, although achieving high internal validity scores, were characterized by a lack of generalizability, inadequate description of study populations, poor intention-to treat analysis, and limited interpretation of functional improvement. Based on our results, the benefits of opioids in clinical practice for the long-term management of chronic LBP remains questionable. Therefore, further high-quality studies that more closely simulate clinical practice are needed to assess the usefulness, and potential risks, of opioids for individuals with chronic LBP.
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Randomized Controlled Trial Meta Analysis Clinical Trial
Use of gabapentin for perioperative pain control -- a meta-analysis.
Gabapentin, an anticonvulsant, has recently been suggested as an effective postoperative 'analgesic' agent. The objective of the present study was to examine the analgesic effectiveness, opioid-sparing effects and side effects associated with the use of gabapentin in a perioperative setting. ⋯ Gabapentin improves the analgesic efficacy of opioids both at rest and with movement, reduces analgesic consumption and opioid-related adverse effects, but is associated with an increased incidence of sedation and dizziness.
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Meta Analysis
Targeted pharmacotherapy of evoked phenomena in neuropathic pain: a review of the current evidence.
Evoked phenomena in clinical neuropathic pain are viewed as a window into the underlying pathophysiology. They are also potential therapeutic targets. This study sought evidence for the effect on such evoked phenomena of currently used agents. ⋯ There is minimal evidence to guide clinicians in treating evoked pain phenomena in clinical neuropathic pain states. There is little clinical evidence to either support or refute theoretical arguments for efficacy of specific agents in evoked neuropathic pain phenomena. More and larger trials are needed to examine these phenomena. Consensus is required with respect to methods used to elicit these evoked phenomena.
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Cochrane Db Syst Rev · Jan 2007
Review Meta AnalysisAnalgesia in patients with acute abdominal pain.
For decades, analgesia for patients with acute abdominal pain was withheld until a definitive diagnosis was established for fear of masking the symptoms, changing physical findings or ultimately delaying diagnosis and treatment of a surgical condition. This non-evidence-based approach has been challenged by recent studies demonstrating that the use of analgesia in the initial evaluation of patients with acute abdominal pain leads to significant pain reduction without affecting diagnostic accuracy. However, early administration of analgesia to such patients can greatly reduce their pain and does not interfere with a diagnosis, which may even be facilitated due to the severity of physical symptoms being reduced. ⋯ The review provide some evidence to support the notion that the use of opioid analgesics in patients with acute abdominal pain is helpful in terms of patient comfort and does not retard decisions to treat.
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Dipyrone is used to treat headaches in many countries, but is not available in others (particularly the USA and UK) because of its association with potentially life-threatening blood dyscrasias such as agranulocytosis. ⋯ Evidence from a small number of trials suggests that dipyrone is effective for ETTH and migraine. No serious adverse events were observed in the included trials, but agranulocytosis is rare and would probably not be observed in such a relatively small sample. A study now ongoing in Latin America may clarify the true risk of agranulocytosis associated with dipyrone use.