J Trauma
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The role of prehospital basic life support as opposed to prehospital advanced life support and the best qualifications for emergency personnel are controversial. Our objective was to establish whether the prehospital deployment of emergency physicians (EPs) rather than emergency medical technicians (EMTs) decreased mortality in blunt polytrauma patients. ⋯ In contrast with the deployment of EPs, care of blunt polytrauma patients by EMTs showed a statistical trend to a higher mortality than predicted and also a significantly higher risk of mortality. It is likely that the consistent deployment of EPs for moderate to severe blunt polytrauma in our catchment area might prevent between 0% and 23% of all deaths from blunt polytrauma or, in absolute terms, up to 1 death per year or 0 to 9.9 per 100 patients treated by an EP instead of an EMT.
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Radiographic clearance of blunt cervical spine injury: plain radiograph or computed tomography scan?
The purpose of this study was to evaluate the roles of cervical spine radiographs (CSR) and computed tomography of the cervical spine (CTC) in the exclusion of cervical spine injury for adult blunt trauma patients. ⋯ No identifiable factors predicted false-negative CSR. There does not appear to be any role for CSR screening in this setting. The data from this study add to the growing body of evidence that CTC should replace CSR for the evaluation of the cervical spine in blunt trauma.
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A biomechanical cadaver study was performed to test the stability and strength of screw osteosynthesis of surgical neck fractures of the humerus. ⋯ Two of the smaller 4.5-mm cannulated screws should be applied parallel from the lateral direction. Only range-of-motion exercises that produce a bending stress should be considered early after surgery, avoiding axial stress.
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Hemostasis can be difficult to achieve after blunt abdominal trauma, especially if the patient is coagulopathic. The U.S. Food and Drug Administration has recently approved a hemostatic dressing for treating bleeding after extremity trauma (RDH bandage; Marine Polymer Technologies, Cambridge, MA). It has not been evaluated for internal bleeding after trauma. We redesigned this dressing for internal use, and then tested whether this modified bandage (Miami-modified Rapid Deployment Hemostat) could achieve hemostasis when used as an adjunct to standard laparotomy pad packing in a pig model of severe liver injury with coagulopathy. ⋯ The Miami-modified Rapid Deployment Hemostat bandage significantly reduced mortality, blood loss, and fluid requirements when used as an adjunct to standard abdominal packing following severe liver injury in coagulopathic pigs [corrected].
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BACKGROUND Identification of ventilator-associated pneumonia (VAP) with invasive methods such as bronchoalveolar lavage (BAL) paired with treatment is associated with improved mortality. Inappropriate antibiotic use, however, is known to increase bacterial resistance, making future treatment problematic. Thus, the diagnostic threshold for VAP in BAL must yield adequate sensitivity while limiting exposure of patients to unnecessary antibiotics. Our institution uses a cutoff of > or = 10(5) colony-forming units (CFUs)/mL, but the optimal cutoff remains an area of debate. In this project, the effects of lower diagnostic cutoffs on VAP diagnosis and unnecessary antibiotic use are examined. ⋯ A threshold of > or = 10(5) CFUs/mL for VAP diagnosis carries a low false-negative rate. Over 80% of additional patients who would have been treated had a threshold of > or = 10(4) CFUs/mL been used recovered without treatment and thus would have undergone unnecessary antibiotic exposure. A similar pattern is seen at all lower thresholds. Lower diagnostic thresholds would lead to marginal increase in sensitivity, and many would receive unnecessary VAP treatment with potential for increasing bacterial resistance.