J Trauma
-
There has recently been an increased interest in the use of hypertonic solutions for fluid resuscitation of trauma victims. In this study, we examined the acute cerebral effects of a hypertonic lactated Ringer's solution (measured osmolality = 469 mOsm/kg) in an animal model of traumatic brain injury. Following the production of a cerebral cryogenic lesion, eight New Zealand white rabbits were randomized to undergo hemodilution with either lactated Ringer's (measured osmolality = 254 mOsm/kg) or hypertonic lactated Ringer's. ⋯ Brain water content was significantly increased in the region of the lesion as assayed by both the wet/dry weight method and cortical specific gravity determinations, but there was no difference between the two treatment groups. Water content of the nonlesioned hemisphere was significantly less in the hypertonic group. This study suggests that hypertonic saline solutions may be useful for the resuscitation of hypovolemic patients with localized brain injury.
-
Ninety-five patients with stab wounds to the lower chest and abdomen underwent routine abdominal exploration. Eighteen of these patients had diaphragmatic injury and in five patients it was the only injury found. ⋯ The anatomic area of concern can be defined as stab wounds that penetrate the left side of the chest below the fourth intercostal space anteriorly, the sixth intercostal space laterally, and the tip of the scapula posteriorly. Exploratory laparotomy is necessary in these patients until a reliable nonoperative method is established that can exclude injuries to the diaphragm.
-
The technique of intraosseous infusion has attracted increasing interest in recent years, and has proven valuable for drug administration. This study was undertaken to determine whether it was also a potential route for fluid resuscitation. ⋯ A fluid bolus of 20 ml/kg could be given to all animals in less than 10 minutes using pressure infusion. These data suggest that intraosseous infusion is a reasonable initial step in fluid resuscitation of pediatric subjects until more conventional vascular access has been established.
-
Current guidelines concerning trauma suggest that cervical spine immobilization be performed on all patients with penetrating wounds of the neck. This study was undertaken to examine the risks and benefits likely to be found when such care is provided in a hazardous environment, such as the battlefield, or the scene of a terrorist attack or domestic criminal action. Data for casualties from the Vietnam conflict were reviewed to determine the potential benefit of cervical spine immobilization on the battlefield. ⋯ Only 1.4% of all casualties who were candidates for immobilization might have benefitted from the care. However, the risk of performing immobilization in a hazardous environment is substantial since about 10% of casualties are incurred while helping other casualties. Mandatory immobilization of all casualties with penetrating neck wounds sustained in an environment hazardous to first aid providers has an unfavorable risk/benefit ratio.
-
Inhalation injury complicated by bacterial pneumonia is now one of the primary causes of morbidity and mortality in patients with thermal injury. We have investigated the use of high-frequency percussive ventilation (HFPV) as a means of ventilatory support for these patients. We propose that high-frequency ventilation may decrease the incidence of pulmonary infection following inhalation injury and decrease the incidence of iatrogenic barotrauma caused by conventional ventilation. ⋯ Eight patients with a mean age of 29 years and a mean burn size of 38% of the total body surface completed the protocol. All patients survived, two developed pneumonia, and one developed subcutaneous emphysema. These results suggest that HFPV is effective in the treatment of patients with severe inhalation injury.