J Trauma
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The purpose of this paper is to identify factors associated with improved utilization of health care resources in the treatment of patients with injury. A prospective cohort study was conducted of all trauma patients admitted to a trauma center from April 15, 1987 to February 28, 1988. Altogether, 877 patients were entered into the study: 673 (76.7%) scene patients, and 204 (23.3%) interhospital transfers. ⋯ The elderly utilize more resources than young patients when matched for severity of injury. It is beneficial to the patients and the health care system to have severely injured trauma patients transported directly to a trauma center from the scene of an injury. Helicopter emergency medical services can enhance the ability of a trauma care system to decrease health care costs.
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Evaluation of abdominal trauma in pregnant patients presents a number of dilemmas. Few series compare the various modalities available in this situation. The present review characterizes various techniques and their results. ⋯ Diagnostic peritoneal lavage proved to be safe and accurate in these patients. Diagnostic peritoneal lavage proved to be safe and accurate in these patients. CT scan and ultrasonography are other modalities which merit further assessment as a primary diagnostic technique in abdominal trauma occurring during pregnancy.
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Patients suffering blunt leg trauma resulting in below-knee fracture, tibial artery injury, and soft-tissue damage are at major risk for amputation. In an attempt to identify the factors which may forecast limb loss despite vascular surgical repair, all patients with tibial fractures admitted between 1980-1988 were reviewed. Forty-four of 366 (12%) patients presented with clinical evidence of tibial artery injury. ⋯ Patients who required amputation had a significantly greater incidence (Fisher's exact test) of three or more fascial compartments involved in muscular injury (p = 0.005), two or more injured tibial vessels (p = 0.01), failed vascular reconstruction (p = 0.03), a cadaveric foot at initial exam (p = 0.03), and severe muscle crush injury or muscle tissue loss (p = 0.03). No extremity was salvaged when more than two of these factors was present, and a failed vascular reconstruction led to limb amputation in all cases. These factors will predict an irretrievable extremity following blunt tibial artery trauma, allowing amputation before life-threatening wound sepsis develops.
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Randomized Controlled Trial Clinical Trial
Esophageal tracheal combitube, endotracheal airway, and mask: comparison of ventilatory pressure curves.
The esophageal tracheal Combitube (ETC) is a new airway especially designed for airway maintenance and ventilation in unconscious patients such as those requiring CPR. The ETC may be used as an esophageal obturator or an endotracheal airway. Previous studies yielded a significantly higher mean arterial oxygen tension (PaO2) during ventilation using an ETC in the esophageal position compared to a conventional endotracheal airway (ETA). ⋯ The following differences in intratracheal pressure and flow could be found for ETC when compared to ETA: smaller rising pressure during inspiration, prolonged expiratory flow time, and formation of a small positive end expiratory pressure (PEEP). These factors may be responsible for the improved oxygen tension with ETC. Comparing mask to ETC ventilation, PaO2 did not differ; however, mean arterial carbon dioxide tension was higher during mask ventilation.
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The effect of pentobarbital on nitrogen and energy metabolism was evaluated in seven severely head-injured patients (Glasgow Coma Scale 4.7 +/- 1.7) within the first week postinjury. Measured energy expenditure (% of predicted) was significantly lower in the pentobarbital group (n = 4) versus control (n = 3) (76 +/- 23% versus 132 +/- 28%, respectively, p less than 0.01). Similarly, 24-hour urinary nitrogen excretion was lower for the barbiturate group compared to control (11.2 +/- 4.0 gm versus 19.5 +/- 3.3 gm, respectively, p less than 0.01). ⋯ S.). Barbiturate therapy decreases measured energy expenditure and reduces nitrogen excretion without significantly altering 3-methylhistidine excretion in head-injured patients. The metabolic effects of pentobarbital may enable the ability to achieve energy and nitrogen equilibrium during metabolic support of acutely head-injured patients.