J Trauma
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Both high tidal volume (V(T)) ventilation and hemorrhage induce acute lung injury in adult rodents. It is not known whether injurious ventilation augments lung injury in infant rats exposed to severe hemorrhage. ⋯ High V(T) ventilation with low PEEP improves respiratory system mechanics without causing additional damage to healthy and hemorrhage-exposed infant rats after 4 hours of ventilation. This study highlights the tolerance to high V(T) ventilation in infant rats and underscores the need for age-specific animal models.
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The challenge of closing extremity fasciotomy wounds is well known to every trauma and orthopedic surgeon. We developed a new, easy, and inexpensive dermatotraction technique based on the simple use of Ty-Raps and report on the first pilot study using this novel technique for the closure of 23 extremity fasciotomy wounds. The Ty-Rap system consists of several combinations of two Ty-Raps and four surgical staples. ⋯ We regard the use of Ty-Raps a good alternative for the current closing techniques of extremity fasciotomy wounds. We value its low cost, general availability, effectiveness, and the fact that, in this pilot study, both the application and the tightening of the Ty-Raps were well tolerated by our patients with a minimal need for secondary procedures. Knowledge of this technique is a useful adjunct to the existing surgical array for every trauma and orthopedic surgeon for the closure of extremity fasciotomy wounds, especially in austere or military environments.
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Ampicillin-sulbactam is guideline-recommended treatment for early-onset ventilator-associated pneumonia (VAP). However, intensive care unit clinicians are encountering increasing resistance to ampicillin-sulbactam. We sought to analyze the time period for early-onset VAP in our trauma population by using daily evaluation of resistance to ampicillin-sulbactam. ⋯ Ampicillin-sulbactam is not an effective empiric therapy for early-onset VAP in our rural trauma population. The utility of ampicillin-sulbactam should be reviewed at other institutions to assess for appropriate empiricism.
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Intramedullary reaming and nailing increases intramedullary pressure. This may cause intravasation of bone marrow contents, leading to bone marrow embolization and altered cardiopulmonary function. Possible beneficial effects of attenuation of the intramedullary pressure increase by the use of a reamer-irrigator-aspirator (RIA) system were studied with the hypothesis that the RIA technique would cause lower numbers of pulmonary embolisms (PEs) and lesser cardiopulmonary affection than traditional reaming (TR). ⋯ The pattern of the procedure-related hemodynamic and pulmonary effects did not differ significantly between the RIA and the TR groups. The RIA group had lower numbers (ns) of embolisms per square centimeter lung area than the TR group. After reaming with the TR device, two animals died of PEs, the first postoperative day. The patients with femoral shaft fracture and additional cardiopulmonary injury or preexisting reduced cardiopulmonary function, however, need special attention, and the use of RIA may, in these cases, represent a better operative alternative with a lesser operative burden.