J Emerg Med
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Traumatic coronary artery dissection (CAD) after blunt chest trauma (BCT) is extremely rare, particularly in children. Among coronary dissections, left main coronary artery (LMCA) dissection is the least common, with only two pediatric cases reported previously. Manifestations of coronary dissections can range from ST segment changes to sudden death. However, these manifestations are not specific and can be present with other cardiac injuries. To our knowledge we present the first pediatric case of traumatic LMCA dissection after sport-related BCT that was treated successfully with coronary stenting. ⋯ A 14-year-old child sustained BCT during a baseball game. Early in the clinical course, he had episodes of ventricular dysrhythmias, diffuse ST changes, rising troponin I, and hemodynamic instability. Emergent cardiac catheterization revealed an LMCA dissection with extension into the proximal left anterior descending artery (LADA). A bare metal stent was placed from the LMCA to the LADA, which improved blood flow through the area of dissection. He has had almost full recovery of myocardial function and has been managed as an outpatient with oral heart failure and antiplatelet medications. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Our case highlights that CAD, although rare, can occur after pediatric BCT. Pediatric emergency responders must have a heightened awareness that evidence of ongoing myocardial ischemia, such as evolving and focal myocardial infarction on electrocardiogram, persistent elevation or rising troponin I, and worsening cardiogenic shock, can represent a coronary event and warrant further evaluation. Cardiac catheterization can be both a diagnostic and therapeutic modality in such cases. Early recognition and management is vital for myocardial recovery.
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Case Reports
Left-sided Superior Vena Cava and Venous Hyperoxia Masquerading as Inadvertent Carotid Artery Catheterization.
A persistent left-sided superior vena cava (PLSVC) is a rare, often asymptomatic, venous anomaly that may be first diagnosed during central venous catheterization. During chest radiograph interpretation, a PLSVC can be confused with inadvertent arterial catheterization. ⋯ We describe the presentation of a 45-year-old man with end-stage liver disease who required central venous catheterization for treatment of septic shock. An aberrantly placed catheter noted on chest radiograph and an elevated central venous oxygen saturation gave the appearance of inadvertent carotid artery catheterization. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: A persistent left-sided superior vena cava can masquerade as an inadvertent cannulation of the carotid artery during central line placement. It is important for emergency physicians to be aware of this possibility when evaluating a chest radiograph with an aberrantly placed catheter. Venous hyperoxia may further complicate attempts to differentiate between arterial and venous catheterization in patients with septic shock. After confirmatory tests, the emergency physician should consider removal of the catheter due to potential complications.
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Pelvic injuries in young children are rare, and it has been difficult to establish clinical guidelines to assist providers in managing blunt pelvic trauma, especially in non-Level 1 trauma centers. ⋯ Patterns of injury, based on mechanism of injury, have been reported to assist the assessment and management of children with minor pelvic injuries.
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Femoral venous access is an essential part of patient care in the emergency department (ED). However, current medical literature and texts have not dealt with it much using actual patient anatomy. ⋯ Up to 95% of people have some degree of overlap of the femoral vein by the femoral artery. By positioning the leg in an abducted and externally rotated position, the amount of overlap is reduced and the diameter of the vein is increased, maximizing the percentage of the vein available for cannulation.
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Hand sanitizing, although often a "forgotten" practice, has been demonstrated to be a leading factor in preventing infectious disease transmission in health care environments. Previous studies have looked at hand-sanitization rates in hospital settings, but we are aware of very few describing this in the prehospital setting. Because emergency medical services (EMS) providers are potential vectors of infectious disease spread, it is important to know if their hand-sanitization practices are sufficient. ⋯ Hand-sanitization events were noted in this convenience sample group a majority of times in association with patient contact. However, there appears to be substantial room for improvement. This suggests that EMS services should work to improve hand-sanitization compliance. Increased instruction, education, or access to hygiene equipment should be investigated as avenues to improve future compliance.