J Trauma
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Changes in the management of torso gunshot wounds (TGSWs) have evolved in recent years as a result of differences between military and civilian injuries and increasing interest in avoiding nontherapeutic invasive procedures. The objective of this study was to establish the utility and accuracy of computed tomography (CT) in the evaluation of selected patients with TGSWs. ⋯ CT of selected TGSW patients is safe and may reduce the incidence of invasive diagnostic procedures. A prospective evaluation of CT for TGSW patients is warranted.
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Previous series of traumatic amputations have noted that delay in amputation results in prolonged hospital stay and delayed rehabilitation. A series of major extremity amputations after burn injury was analyzed to identify the frequency of delayed amputation and to identify factors resulting in the delay. ⋯ There is a bimodal distribution of time to amputation determined by mechanism of injury, severity of burn, and infectious complications. Earlier identification of nonsalvageable limbs may decrease infectious complications and improve the chances of patient survival.
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Hypothermia is considered harmful in trauma patients. In surgery, hypothermia is occasionally used to reduce metabolism and protect the brain. Recent studies in animals have also shown protective effects of hypothermia in hemorrhagic shock. The aim of this study was to evaluate the metabolic and endocrine effects of induced hypothermia in hemorrhagic shock. ⋯ In porcine hemorrhagic shock, induced hypothermia increases arterial oxygen tension and stabilizes serum levels of potassium and catecholamines.
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Comparative Study
Treatment of clavicular aseptic nonunion: comparison of plating and intramedullary nailing techniques.
The aim of this retrospective study was to investigate and compare the effects of plating and intramedullary nailing in the treatment of clavicular aseptic nonunion. ⋯ Intramedullary nailing may have a higher union rate with a lower complication rate than plating (p > 0.05). At least in common situations, it is not inferior to plating. Whenever possible, therefore, intramedullary nailing should be used preferentially to treat clavicular aseptic nonunion without previous operative treatment. Nevertheless, both techniques have relatively higher nonunion rates in the treatment of clavicular nonunion than in the treatment of other long-bone nonunions. Gentle handling of surrounding soft tissues to reduce bony fragments should be strictly executed.
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Tachycardia is considered a physiologic response to traumatic hypotension. The inability of the heart to respond to shock with tachycardia has been described as paradoxical bradycardia or relative bradycardia. The incidence and clinical significance of this condition in major trauma is not known. The objective of this study was to examine the incidence and prognostic significance of tachycardia and relative bradycardia in patients with traumatic hypotension. Relative bradycardia is defined as a systolic pressure < or = 90 mm Hg and a pulse rate < or = 90 beats per minute. ⋯ Relative bradycardia in hypotensive trauma patients is a common hemodynamic finding. Mortality among tachycardic patients was more predictable than among bradycardic patients using commonly used demographic and injury indicators. The presence of relative bradycardia in some subgroups of patients with severe injuries seems to be associated with better prognosis than the presence of tachycardia.