European journal of anaesthesiology
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Comparative Study
Hyperalgesia and increased sevoflurane minimum alveolar concentration induced by opioids in the rat: A randomised experimental study.
Perioperative opioids reduce inhalational anaesthetic requirements. The initial hypoalgesia may, however, be followed by a rebound hyperalgesia. ⋯ Opioid-induced hyperalgesia was associated with an increase in the MAC in normal rats who had not undergone surgery. Both effects lasted 21 days and were prevented by ketamine.
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The antidepressant amitriptyline, the inhibitor of microglia activation minocycline, and the neurokinin-1 antagonist maropitant have all been used to prevent or treat hyperalgesia and opioid tolerance. ⋯ Amitriptyline, minocycline and maropitant reduced the minimum alveolar concentration and potentiated the remifentanil minimum alveolar concentration reduction but failed to block opioid-induced hyperalgesia and acute opioid tolerance.
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Randomized Controlled Trial Comparative Study
Ultrasound versus fluoroscopic-guided epidural steroid injections in patients with degenerative spinal diseases: A prospective, randomised study.
Epidural steroid injections are routinely performed under fluoroscopic guidance, but could also be performed using preprocedure ultrasound spine examination. ⋯ We have demonstrated the feasibility of ultrasound-assisted epidural steroid injections.
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Retraction Of Publication
Intravenous nonopioid analgesic drugs in chronic low back pain patients on chronic opioid treatment: A crossover, randomised, double-blinded, placebo-controlled study: Retraction.
The authors of the 2014 article "Intravenous nonopioid analgesic drugs in chronic low back pain patients on chronic opioid treatment: A crossover, randomised, double-blinded, placebo-controlled study" wish to retract the article as Dr Kozek-Langenecker did not consent to its submission and publication.