Articles: opioid.
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Case Reports
A Successful Case of Switching Treatment from Ketamine to Methadone for Complex Neuropathic Pain.
Background: Methadone is frequently used for the management of complex pain at the end of life by palliative care specialists. It is also used in low doses as an add-on therapy to chronic opioid treatment of cancer-related pain, usually with good effect, and without any reported severe adverse effects. However, there are few reports of switching from ketamine to methadone. ⋯ Switching from ketamine to methadone to maintain analgesia was successfully carried out without impacting activities of daily living. Established measurement tools, such as numerical rating scale, Douleur Neuropathique, Functional Independence Measure, and Barthel Index, were used. Conclusion: Switching from ketamine to methadone may be beneficial in relieving refractory cancer-related neuropathic pain without decreasing functioning.
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Anesthesia and analgesia · Apr 2022
Randomized Controlled TrialWound Infusion of 0.35% Levobupivacaine Reduces Mechanical Secondary Hyperalgesia and Opioid Consumption After Cesarean Delivery. A Prospective, Randomized, Triple-Blind, Placebo-Controlled Trial.
Post-caesarean section local anaesthetic wound infusion reduces acute postoperative pain & hyperalgesia although had no effect on persistent postoperative pain.
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Curr Opin Anaesthesiol · Apr 2022
ReviewA not so sweet scenario: impact of perioperative glucose control on regional anesthetic techniques for orthopedic surgery.
Diabetes and hyperglycemia are well established risk factors for complications associated with common orthopedic surgeries. In some practice settings, these conditions are also viewed as contraindications to regional nerve catheters. In this article, we aim to present our approach to offering the benefits of this modality in a safe manner for patients with diabetes and even some with preexisting, localized infections. ⋯ Based on our experience and reading of the literature, we advocate for a liberalized approach to use of continuous regional anesthesia for diabetic patients having for orthopedic surgery. A set of consensus guidelines tailored to institutions' resources and monitoring capabilities can be a useful tool for standardizing care. It may also increase access to the clinical benefits of this modality in a population particularly vulnerable to opioid related adverse effects.
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Opioids may produce life-threatening respiratory depression and death from their actions at the opioid receptors within the brainstem respiratory neuronal network. Since there is an increasing number of conditions where the administration of the opioid receptor antagonist naloxone is inadequate or undesired, there is an increased interest in the development of novel reversal and prevention strategies aimed at providing efficacy close to that of the opioid receptor antagonist naloxone but with fewer of its drawbacks such as its short duration of action and lesser ability to reverse high-affinity opioids, such as carfentanil, or drug combinations. To give an overview of this highly relevant topic, the authors systematically discuss predominantly experimental pharmacotherapies, published in the last 5 yr, aimed at reversal of opioid-induced respiratory depression as alternatives to naloxone. ⋯ The authors argue that none of these often still experimental therapies are sufficiently tested with respect to efficacy and safety, and many of the agents presented have a lesser efficacy at deeper levels of respiratory depression, i.e., inability to overcome apnea, or have ample side effects. The authors suggest development of reversal strategies that combine respiratory stimulants with naloxone. Furthermore, they encourage collaborations between research groups to expedite development of viable reversal strategies of potent synthetic opioid-induced respiratory depression.