A&A practice
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The fundamental perioperative concern for patients with implantable cardioverter-defibrillators (ICDs) is the potential for electromagnetic interference (EMI) from monopolar electrosurgery. The ICD may interpret electromagnetic signals as a tachyarrhythmia and deliver an inappropriate shock to the patient. ⋯ We report a case in which magnet placement over an ICD failed to suspend tachyarrhythmia therapy because of imprecise magnet positioning. This case demonstrates the possibility for error when relying on a magnet to suspend tachyarrhythmia therapies.
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Burning mouth syndrome is a chronic pain condition characterized by a burning sensation of the oropharynx. The pathophysiology of burning mouth syndrome includes peripheral and central sensitization. ⋯ Low-dose naltrexone has been reported to provide analgesia in central sensitization states and was successful in reducing pain severity in our patient. We conclude that low-dose naltrexone may be a therapeutic option for patients with burning mouth syndrome who are refractory to conventional therapies.
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A 60-year-old woman with a 5-year history of anxiolytic use, a diazepam-equivalent daily dose of 15 mg, was scheduled for esophageal stent removal. She was given remimazolam (0.5 mg/kg) but remained fully alert. She only lost consciousness with propofol (40 mg). ⋯ He was given remimazolam (0.3 mg/kg) but remained fully alert. He only lost consciousness after desflurane inhalation. In a patient with a history of long-term benzodiazepine use, anesthetic or sedative agents aside from remimazolam should be considered.
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Recent studies have demonstrated that vasopressors can be delivered safely through peripheral intravenous lines. While norepinephrine is usually delivered at a concentration of 16 to 32 μg/mL, out of concern for extravasation and interstitial necrosis, some patients receive more dilute norepinephrine solutions through peripheral intravenous catheters. ⋯ After the incident, the institutional policy changed to recommend normal saline as the default diluent for peripheral norepinephrine, with a more concentrated option available. The incident also informed similar guidelines at other hospitals.
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Multiple disease processes can contribute to coagulopathy in the setting of intrauterine fetal demise. A 34-year-old woman with multiple prior uterine surgeries presented for dilation and evacuation of a fetal demise at 17 weeks. Her case was complicated by significant hemorrhage and coagulopathy requiring massive transfusion and hysterectomy. ⋯ Pathology identified a focal placenta accreta. While not known to present together, fetal demise, placenta accreta, and atypical hemolytic-uremic syndrome can occur in the same patient with an overlapping presentation. Early hematology consultation is recommended in the setting of ongoing hemolysis and renal dysfunction.