American journal of therapeutics
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Review Case Reports
Effectiveness of full agonist opioids in patients stabilized on buprenorphine undergoing major surgery: a case series.
A review of the medical literature failed to reveal clear, agreed-upon guidelines for practitioners on the postoperative provision of full agonist opioids for patients maintained on buprenorphine. Some controversy appears to exist about whether to maintain patients on their buprenorphine regimen up to the time of surgery. ⋯ Postoperative pain was adequately controlled using full agonist opioids according to self-report and physician assessment. The observations from this case series lend support to the practice of maintaining stable buprenorphine dosing for patients who require major surgery.
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Zolpidem is a nonbenzodiazepine hypnotic with a favorable adverse effect profile. There are single reports of respiratory decompensation associated with zolpidem overdose. ⋯ Supportive management led to a complete recovery of neurologic function. Acute zolpidem overdose should be considered in the differential diagnosis of coma with absent brainstem reflexes.
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Ketamine has been recognized as an anesthetic agent of choice in areas with limited resources, particularly in emergency situations. Unlike other commonly used induction agents, it preserves respiratory drive and maintains predominant sympathetic tone. ⋯ Despite these drawbacks, ketamine has become a favorable drug for the sedation of children undergoing various procedures. Here we propose 3 clinical paradigms where ketamine may be the agent of choice for the pediatric patient requiring sedation or anesthesia, including (1) the child with a difficult airway, (2) the child with a reactive airway disease, and (3) the uncooperative child requiring intravenous access.
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Labor analgesia researchers have pursued better and safer ways to provide pain relief in labor. Although some pharmacologic investigations have focused on alternative mechanisms to target and medications to employ, a large part of the recent obstetric anesthesiology literature has contributed toward the safety and efficacy of techniques dependent on traditional therapeutics, specifically local anesthetics given through a neuraxial anesthetic technique. Investigators have worked to demonstrate and remove doubts that neuraxial anesthesia can be a safe method of labor analgesia. ⋯ To avoid excessive dosages, clinical up-down sequential allocation experiments identified the minimum amounts of local analgesia needed. Modifications to the administration of drug allowed total doses to be further reduced. This historical overview highlights some of these important advances in the present and recent past of neuraxial labor analgesia, and it traces how desired outcomes are being achieved with less and less total drug.
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We have all encountered the following postanesthesia care unit dilemma a myriad of times. As the attending covering the postanesthesia care unit, the anesthesiologist will be confronted not infrequently with the following clinical scenario: "He needed 500 μg fentanyl in the operating room for a toe amputation and has received 20 mg morphine, and he's still complaining of severe pain…. ⋯ When assessing a patient experiencing exaggerated postoperative or chronic pain, several questions should come to mind. First, is this patient experiencing tolerance or hyperalgesia induced by opiate therapy? Second, does the management differ for the two etiologies? Third, what underlying mechanisms, both at the neuroanatomic and molecular/chemical levels, underlie the two processes? Fourth, how does the recent literature on opiate-induced hyperalgesia influence previously accepted views of pre-emptive analgesia? Fifth, what treatment modalities exist for opiate-induced hyperalgesia? Most importantly, sixth, how can opiate-induced hyperalgesia be prevented? In this literature review, we aim to address these questions and to hopefully change the current perception and management of perioperative and chronic pain states with opiates.