J Trauma
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The initial hemoglobin (Hb) levels and vital signs of 1,000 patients treated with intravenous infusion in the admission area of Groote Schuur Hospital Trauma Unit were recorded. The mean Hb level of 860 patients with mild or no signs of shock was 12.7 g/dL. Lower mean Hb levels were noted in 91 moderately shocked patients (11.8 g/dL, p less than 0.0001) and 49 severely shocked patients (9.9 g/dL, p less than 0.00001). ⋯ Hypovolemia was judged to be the major factor in causing death in 13 (86.7%) of the 15 patients with a Hb level under 8 g/dL who died. A low Hb level observed soon after injury is usually an indicator of serious ongoing hemorrhage and has important implications for management and prognosis. Measurement of the Hb level may prove useful in prehospital assessment of the level of trauma care required and also in injury severity scoring as a predictor of mortality.
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During a 3-year period (1986-1989), 8 patients were seen at St. Louis University Medical Center exhibiting the stigmata of traumatic asphyxia. Fewer than 200 cases of traumatic asphyxia have been reported and there is only a single report of a cardiac injury. ⋯ There was one death in the series, a patient with rupture of the right ventricle and severe splenic and liver injuries. The cardiac status of the patients was evaluated by serial serum cardiac enzyme determinations, electrocardiograms, and echocardiography. This report illustrates the importance of complete cardiac evaluation in patients with traumatic asphyxia.
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Tension pneumopericardium is uncommon in blunt trauma, and only rare survivors have been reported. We report two patients who survived tension pneumopericardium following blunt trauma. Both patients experienced signs and symptoms of cardiac tamponade that were corrected by insertion of a subxyphoid pericardial tube. Both survived all injuries and returned to normal activities with normal neurologic function.
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A migratory intravascular bullet fragment located within the hypogastric vein was removed successfully with the aid of interventional radiologic techniques. The authors describe the use of the technique of balloon trapping as part of this procedure. A balloon should be inflated between the foreign body and the heart before retrieval is attempted in order to prevent migration back to the heart during the manipulation.
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Comparative Study
Comparison of three methods of rewarming from hypothermia: advantages of extracorporeal blood warming.
We developed a new technique, extracorporeal venovenous rewarming (EVR), to rewarm hypothermic patients in the intensive care unit or operating room. We compared this method with the active external (standard) techniques of warming blankets; heated ventilator circuits, intravenous fluids, and gastric and peritoneal lavage; and cardiopulmonary bypass. ⋯ Cardiopulmonary bypass is required in severely hypothermic patients with cardiac arrest. Standard techniques can be used when these immediately life-threatening conditions are not present.