J Emerg Med
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Observational Study
Fraction of Expired Oxygen as a Measure of Preoxygenation Prior to Rapid Sequence Intubation in the Pediatric Emergency Department.
Pulse oximetry (SpO2) is a flawed measure of adequacy of preoxygenation prior to intubation. The fraction of expired oxygen (FeO2) is a promising but understudied alternative. ⋯ Measuring FeO2 during rapid sequence intubation is challenging with feasibility limitations, but may be a more discriminatory metric of adequate preoxygenation.
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Diagnostic Value of Galectin-3 for Identifying Acute Pulmonary Embolism in the Emergency Department.
Pulmonary embolism (PE) is a common disease associated with high mortality and morbidity. Diagnosing PE is challenging due to diverse clinical presentations and the lack of specific biomarkers. ⋯ A biomarker that rapidly and accurately diagnoses acute PE in the emergency department can be an extremely useful tool. We concluded that plasma Gal-3 levels can be regarded as a promising marker of acute PE.
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Necrotizing fasciitis is a life-threatening soft-tissue infection, often characterized by soft-tissue destruction, systemic toxicity, and high mortality. No single laboratory value can diagnose necrotizing fasciitis; ultimately, necrotizing fasciitis is a clinical diagnosis and therefore presents a diagnostic dilemma for many physicians. The finger probe test is useful in confirming the diagnosis when imaging studies are unobtainable or nondiagnostic. ⋯ We present the case of a 70-year-old woman presenting nonverbal and obtunded with a soft-tissue infection of the right lower extremity. The only pertinent positive vital sign was tachypnea with a respiratory rate of 22 breaths/min. Physical examination revealed nonpitting edema, cold-to-touch lower extremity, and Nikolsky-positive hemorrhagic bullae. Initial laboratory test results showed white blood cell count of 38 x 109/L and lactic acid of 8.2 mg/dL. Advanced imaging was unobtainable, given the patient's worsening clinical status, and the decision was made to perform the finger probe test, which revealed absence of bleeding and presence of friable tissue and "dishwater" discharge. Consequently, the general surgery team took the patient to the operating room and performed an above-the-knee amputation and surgical debridement. Postoperative report noted nonviable tissue consistent with necrotizing fasciitis. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Necrotizing fasciitis is a life-threatening emergency that can destroy soft-tissue at a rate of 1 inch/h. When imaging is unobtainable or nondiagnostic, the finger probe test can be used in select patients to aid with diagnosis.
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Sight-threatening complications from retained orbital and intraocular foreign bodies are frequently reported in literature. Delays in diagnosis can result in severe complications, including choroidal neovascularization, infection, and irreversible vision loss. Therefore, it is imperative that emergency physicians consider the possibility of orbital and intraocular foreign bodies when evaluating patients with acute facial trauma. ⋯ A 91-year-old woman with a history of laser-treated glaucoma and cataracts presented to an outside emergency department after a ground-level fall. A maxillofacial noncontrast computed tomography scan showed no facial fractures or hemorrhage, but a 41 mm × 4 mm foreign body within the intraconal compartment of the right orbit was identified. The object was presumed to be an implanted glaucoma drainage device, and the patient was discharged without antibiotics. One day after discharge, the patient developed right periorbital swelling and erythema with increasing purulent discharge and skin thickening, ultimately requiring transfer to our facility for management of complex right orbital cellulitis, orbital compartment syndrome, and surgical foreign body removal. Despite globe exploration and surgical intervention, the patient developed a frozen globe with no light perception in the right eye. Why Should an Emergency Physician Be Aware of This? Subtle ophthalmologic emergencies such as sight-threatening foreign bodies can be challenging to diagnose on imaging, particularly with the advent of implantable ocular technology. When an orbital foreign body is discovered in the context of facial trauma, early ophthalmology consultation should be considered.
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Shoulder dislocations are a common presenting injury to the emergency department (ED), with anterior dislocations comprising the majority of these cases. Some patients may tolerate gentle manipulation and reduction, but many require analgesia of some type. Oral or parenteral pain medication is often used alone or in combination with procedural sedation if gentle manipulation fails to achieve reduction. Recently, this treatment algorithm has grown to include regional anesthesia as a mode of analgesia for reduction of shoulder dislocations in the form of brachial plexus blocks. It has been well described that the interscalene and supraclavicular approach to the brachial plexus can be used to assist in reduction of anterior shoulder dislocations; however, there has yet to be any published literature regarding the use of ultrasound-guided retroclavicular approach to the infraclavicular region (RAPTIR) brachial plexus blocks for shoulder reduction. ⋯ We describe three patients who presented to the ED with anterior shoulder dislocations. The RAPTIR block was performed, provided effective analgesia, and facilitated successful shoulder reduction in all three patients.Why Should an Emergency Physician Be Aware of This? The RAPTIR nerve block is a safe and effective option for analgesia in the patient with an anterior shoulder dislocation. It may have advantages over other brachial nerve blocks and avoids the risks and disadvantages of procedural sedation and opioids.