J Trauma
-
ASCOT (A Severity Characterization of Trauma) is a physiologic and anatomic characterization of injury severity which combines emergency department admission values of Glasgow Coma Scale, systolic blood pressure, respiratory rate, patient age, and AIS-85 anatomic injury scores in a way that obviates ISS shortcomings. ASCOT values are related to survival probability using the logistic function and regression weights reaffirm the importance of head injury and coma to the prediction of patient outcome. The ability of TRISS and ASCOT to discriminate survivors from non-survivors and the reliability of their predictions, as measured by the Hosmer-Lemeshow statistic, were compared using Major Trauma Outcome Study (MTOS) patient data. ⋯ Statistically reliable predictions were not achieved by TRISS for either set. ASCOT provides a more precise description of patient physiologic status and injury number, location, and severity than TRISS. The ASCOT patient description may be useful in relating to other important outcomes not highly correlated with TRISS or the Injury Severity Score (ISS) such as disability, length of stay, and resources required for treatment.
-
MESS (Mangled Extremity Severity Score) is a simple rating scale for lower extremity trauma, based on skeletal/soft-tissue damage, limb ischemia, shock, and age. Retrospective analysis of severe lower extremity injuries in 25 trauma victims demonstrated a significant difference between MESS values for 17 limbs ultimately salvaged (mean, 4.88 +/- 0.27) and nine requiring amputation (mean, 9.11 +/- 0.51) (p less than 0.01). ⋯ In both the retrospective survey and the prospective trial, a MESS value greater than or equal to 7 predicted amputation with 100% accuracy. MESS may be useful in selecting trauma victims whose irretrievably injured lower extremities warrant primary amputation.
-
Of 29 blunt trauma victims with a diagnostic peritoneal lavage white blood cell count (DPL:WBC) greater than or equal to 500/mm3 as the sole positive lavage criterion, only four underwent laparotomy at admission, and only one of these had sustained intestinal perforation. Two of the remaining 25 succumbed to extra-abdominal injuries within 24 hours, leaving 23 patients, who were followed clinically for an average of 34.7 days. None was ever discovered to have sustained intestinal perforation. ⋯ The remaining 18 underwent DPL: 17 demonstrated gross blood, and only one patient was diagnosed solely by an elevated DPL:WBC. We conclude that DPL:WBC is a nonspecific indicator of intestinal perforation from blunt abdominal trauma, and prospective studies are needed to properly define its role. Sequential determinations of DPL:WBC may be useful in the diagnosis of intestinal perforation.
-
Small-volume resuscitation (4 ml/kg) with hypertonic saline-dextran (HSD) has been shown effective in hemorrhagic shock. In the present study the effectiveness of an initial 4 ml/kg bolus infusion of HSD on cardiovascular function and fluid resuscitation requirements after a major burn injury was evaluated in anesthetized sheep following a 40% BSA scald burn. One hour after injury resuscitation was initiated by a rapid intravenous bolus infusion (4 ml/kg) of either hypertonic saline-dextran (7.5% NaCl in 6% dextran 70) (HSD) or the same volume of normal (isotonic) saline (NS). ⋯ The total requirements for fluid therapy during the first 6 hr postburn were not reduced by the initial HSD bolus (HSD 3,145 +/- 605 ml, NS 2,905 +/- 495 ml; n.s.), nor was skin edema formation reduced. We conclude that in anesthetized sheep HSD resuscitation was only transiently effective in treating burn shock. This may be attributed to the sustained increase in vascular permeability and continued plasma leak following thermal injury.
-
One regional trauma center's experience with a large number of seriously injured pregnant women was reviewed to identify factors affecting maternal and fetal outcome after injury. Of 318 pregnant women who suffered trauma from January 1984 through December 1988, 25 (8%) were severely injured and would have required hospital admission even in the absence of pregnancy. Physical examination, except for the inappropriate absence of fetal heart tones, was a poor predictor of fetal status. ⋯ Maternal evaluation and treatment should occur in a stepwise and organized fashion following the general principles of trauma care (ATLS guidelines) in conjunction with perinatal specialists. Uterine ultrasonography should be an integral component of the initial evaluation. With expedient resuscitation, evaluation, and intervention, maternal and fetal survival can be expected.