The American journal of emergency medicine
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An arterioenteric fistula is a life-threatening condition. Whereas most arterioenteric fistulae involve the duodenum, they can occur at any point along the gastrointestinal tract, and those to the lower tract may present with less classic symptoms than arterioduodenal fistulae. It is likely that more patients with arterioenteric fistulae will present to the emergency department (ED) in the future because of an increasing number of elective aortic aneurysm repairs in an aging population. We present a patient with a secondary fistula involving the sigmoid colon who presented to the ED with abdominal pain and a tender abdominal mass.
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The objective of this study was to determine if hemoconcentration occurs during cardiac arrest and cardiopulmonary resuscitation (CPR). The design was an animal model of cardiac arrest and CPR performed at a research institute using six mongrel dogs. After the induction of cardiac arrest, animals were subjected to 4 minutes of ventricular fibrillation followed by 20 minutes of CPR. ⋯ Hemoglobin concentrations were obtained before arrest and every 5 minutes during CPR. An average peak increase in hemoglobin concentration of 21% was observed during CPR. Hemoconcentration occurs during cardiac arrest and CPR, and this may be a result of a shift in volume from the intravascular to the extravascular space.
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Letter Case Reports
Solitary papilloma of the larynx as the precipitant of sudden death.