The effects of pneumatic antishock garments in the treatment of critical abdominal injuries in rats
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Thirty rats were subjected to a standardized critical aortic injury and divided into six groups. In addition to controls, the animals were treated with a pneumatic antishock garment (PASG), massive intravenous or intra-aortic saline infusion, or PASG in combination with either massive intravenous or intra-aortic saline infusion. Twenty-six rats were subjected to a standardized hepatic injury and divided into four groups. In addition to controls, the animals were treated with PASG, massive intravenous saline infusion, or PASG in combination with massive intravenous saline infusion. These animals were allowed to bleed for 5 minutes before the treatment was started. The treatment with PASG alone prolonged the median survival time significantly from 7 min in the control group to greater than 120 min in the PASG group in rats with an aortic injury and from 33 to greater than 120 min in rats with a hepatic injury. Intravenous infusion of saline did not prolong the median survival time. Intravenous infusion in combination with PASG did not have any positive effects on median survival time or median mean aortic pressure and failed to prolong the median survival time significantly in rats with a liver injury, as six out of eight animals developed a lethal pulmonary edema.