J Trauma
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Randomized Controlled Trial Comparative Study
Proper estimation of blood loss on scene of trauma: tool or tale?
Visually estimated amount of blood loss may influence decision making in the prehospital setting. The purpose of this study was to determine the ability and accuracy of paramedics and emergency physicians to visually estimate a volume of external blood loss and the influence of different vital signs. ⋯ With regard to all given amounts of blood loss, providing vital parameters suggesting instability (i.e., low blood pressure, high heart rate) led to a higher estimation of the lost blood volume in both paramedics and emergency physicians. However, estimations were influenced impressively by the given parameters. For both stable and unstable patients, small actual volumes were overestimated, whereas higher volumes tended to be underestimated. Neither occupational status (emergency physician or paramedic) nor gender or level of experience influenced accuracy of estimated blood loss significantly.
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Randomized Controlled Trial Comparative Study
Airway scope versus macintosh laryngoscope in patients with simulated limitation of neck movements.
Tracheal intubation in patients with suspected neck injuries should achieve two contradicting goals-sufficient laryngeal exposure and the least cervical spine movement. Because the former involves displacements of the cervical vertebrae, intubation under immobilization is widely performed today to prevent exacerbation of spinal code injuries. The unique curving blade of the Airway Scope (AWS) is designed to fit the oropharyngeal anatomy. A camera at the tip of the blade displays the view of the larynx, but unlike the direct laryngoscope, it needs no line-of-sight of the oral, pharyngeal, and tracheal axis. Our purpose is to determine whether AWS could be a suitable airway device for the intubation of patients with potential neck injury. ⋯ In neck-immobilized patients using semi-rigid cervical collars, AWS improves laryngeal exposure and facilitates tracheal intubation. AWS may be a suitable intubation device for trauma patients.
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Randomized Controlled Trial Multicenter Study
Results of the CONTROL trial: efficacy and safety of recombinant activated Factor VII in the management of refractory traumatic hemorrhage.
Traumatic coagulopathy contributes to early death by exsanguination and late death in multiple organ failure. Recombinant Factor VIIa (rFVIIa, NovoSeven) is a procoagulant that might limit bleeding and improve trauma outcomes. ⋯ rFVIIa reduced blood product use but did not affect mortality compared with placebo. Modern evidence-based trauma lowers mortality, paradoxically making outcomes studies increasingly difficult.
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Randomized Controlled Trial
A randomized prospective trial of airway pressure release ventilation and low tidal volume ventilation in adult trauma patients with acute respiratory failure.
Airway pressure release ventilation (APRV) is a mode of mechanical ventilation, which has demonstrated potential benefits in trauma patients. We therefore sought to compare relevant pulmonary data and safety outcomes of this modality to the recommendations of the Adult Respiratory Distress Syndrome Network. ⋯ For patients sustaining significant trauma requiring mechanical ventilation for greater than 72 hours, APRV seems to have a similar safety profile as the LOVT. Trends for APRV patients to have increased ventilator days, ICU LOS, and ventilator-associated pneumonia may be explained by initial worse physiologic derangement demonstrated by higher Acute Physiology and Chronic Health Evaluation II scores.
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Randomized Controlled Trial Multicenter Study Comparative Study
Global differences in causes, management, and survival after severe trauma: the recombinant activated factor VII phase 3 trauma trial.
Little is known about international variation in mortality after severe trauma. This study examines variation in mortality, injury severity, and case management among countries from a recent prospective multinational trauma trial. ⋯ Considering international variation in mortality when designing or interpreting results from multinational trauma studies is important. Significant differences in mortality persisted between patients from different countries after case mix and case management adjustment. Adherence to clinical guidelines was associated with improved survival. Stratification, case mix adjustment, and use of guidelines on damage control surgery, transfusion, and ventilation may mitigate country-driven variation in mortality.