Annals of emergency medicine
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Recent-onset atrial fibrillation, defined as a first detected or recurrent episode of atrial fibrillation lasting less than 48 hours, is a commonly encountered dysrhythmia in the emergency department (ED). Cardioversion of stable patients in the ED with recent-onset atrial fibrillation without antecedent anticoagulation would allow for these patients to be discharged directly to home. ⋯ According to the available evidence, we conclude that it would be within the standard of care to discharge home stable patients with recent-onset atrial fibrillation after cardioversion in the ED with adequate follow-up. It should be noted that although this strategy is safe and effective, the return visit rate for relapsed atrial fibrillation is 3% to 17%, and patients should be made aware of this possibility.
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Comparative Study
Evaluation of the Test-mate ChE (cholinesterase) field kit in acute organophosphorus poisoning.
Measurement of acetylcholinesterase (AChE) is recommended in the management of organophosphorus poisoning, which results in 200,000 deaths worldwide annually. The Test-mate ChE 400 is a portable field kit designed for detecting occupational organophosphorus exposure that measures RBC AChE and plasma cholinesterase (PChE) within 4 minutes. We evaluate Test-mate against a reference laboratory test in patients with acute organophosphorus self-poisoning. ⋯ The Test-mate ChE field kit reliably provides rapid measurement of RBC AChE in acute organophosphorus poisoning.
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Amlodipine is a potent vasodilator with a long half-life and delayed onset of action that is particularly concerning after an overdose. Vasodilation occurs through stimulation of nitric oxide release with increased cyclic guanosine monophosphate (cGMP) production. ⋯ Methylene blue also has the ability to scavenge nitric oxide, as well as inhibit nitric oxide synthase. We report the use of methylene blue for refractory shock in a patient with amlodipine toxicity.