J Trauma
-
Comparative Study
Comparison of standard and alternative prehospital resuscitation in uncontrolled hemorrhagic shock and head injury.
Recently acquired data suggest that prehospital fluid resuscitation may worsen outcome of patients with penetrating torso trauma. In patients with head injury, delayed resuscitation (DR) could lead to secondary cerebral ischemia. We hypothesized that standard prehospital resuscitation (SPR) with lactated Ringer's solution or diaspirin cross-linked hemoglobin would reduce secondary cerebral ischemia compared with DR. ⋯ In this model, SPR leads to secondary cerebral ischemia. DR is no worse and may be superior to conventional prehospital resuscitation with lactated Ringer's solution.
-
Near-infrared spectroscopy (NIRS) noninvasively measures tissue O2 saturation (StO2), and has been proposed as a means of monitoring for compartmental syndrome (CS). However, its specificity in hypoxemic, hypotensive patients with severely reduced systemic oxygen delivery has not been tested. We hypothesized that NIRS can differentiate muscle ischemia caused by shock from ischemia caused by CS. ⋯ NIRS detects muscle ischemia caused by CS despite severe hypotension and hypoxemia, making it potentially useful in critically injured, unstable patients.
-
Comparative Study
Railway train versus motor vehicle collisions: a comparative study of injury severity and patterns.
This study compares the demographics, injury severity, resource use, and injury patterns of patients involved in railway train-motor vehicle (RT-MV) to motor vehicle-motor vehicle (MV-MV) collisions. ⋯ RT-MV collisions are a marker for more severe injuries, but not a different pattern of injury, compared with MV-MV collisions.
-
Hypertonic sodium acetate-dextran solution (HAD) causes vasodilatation and buffers metabolic acidosis. In controlled hemorrhage models, HAD in small volumes increases cardiac output without increasing blood pressure, thus creating a "high flow-low pressure" state. The objective of this study was to determine whether limited resuscitation of uncontrolled hemorrhage with HAD solution improves gut perfusion as measured by intestinal mucosal tonometry. ⋯ HAD did not improve gut perfusion despite buffering the systemic acidosis of shock and caused increased mortality. Limited resuscitation with any of these solutions is associated with significant mucosal acidosis.
-
Despite improvements in burn wound care, infections, particularly pneumonia, remain a major hurdle to recovery from thermal injury. After burns, a variety of systemic immune and inflammatory changes contribute to the risk of infection. Clinically, infection coupled with burn injury seems to adversely affect susceptibility to subsequent infection. ⋯ Small thermal injuries coupled with transient infection of the lungs or peritoneum delay the clearance of bacteria from the lungs and contribute to infection of the lungs, liver, burn site, and blood by endogenous organisms. These studies support the synergy of relatively small thermal injuries with infectious exposures in the pathogenesis of pneumonia and systemic infections after burns.