• Borna Relja, Maika Szermutzky, Dirk Henrich, Marcus Maier, Jacco-Juri de Haan, Tim Lubbers, Wim A Buurman, and Ingo Marzi.
• Department of Trauma Surgery, Johann Wolfgang Goethe University Frankfurt am Main, Germany. info@bornarelja.com
• Acad Emerg Med. 2010 Jul 1; 17 (7): 729-35.

ObjectivesFatty acid-binding proteins (FABPs) have relatively high tissue concentrations and low plasma concentrations and are released into the circulation following organ injury. We explored the utility of intestinal-(I)-FABP and liver-(L)-FABP for the diagnosis of abdominal injury in patients with multiple trauma.MethodsThis prospective study included 102 trauma patients and 30 healthy volunteers. Plasma I-FABP and L-FABP levels were measured in the emergency department (ED) by enzyme-linked immunosorbent assay (ELISA). Forty-one patients suffered from serious or severe abdominal trauma (Abbreviated Injury Score [AIS] code "ai" for abdominal injury, AISai > or = 3) and nine were moderately abdominally injured (AISai < 3). Fifty-two had no abdominal injury.ResultsMedian I-FABP and L-FABP levels in the AISai > or = 3 group (516 pg/mL and 135 ng/mL, respectively) were significantly higher compared to the AISai < 3 group (154 pg/mL and 13 ng/mL, respectively) or those without abdominal injury (207 pg/mL and 21 ng/mL, respectively) or normal controls (108 pg/mL and 13 ng/mL, respectively). The cutoff to distinguish the ai > or = 3 is 359 pg/mL for I-FABP and 54 ng/mL for L-FABP, with 93% specificity and 75% sensitivity for I-FABP and 93% and 82% for L-FABP, respectively.ConclusionsHigh I-FABP and L-FABP levels correlate with relevant severity of abdominal tissue damage in patients with multiple trauma. I-FABP and L-FABP could be useful as markers for the early detection of significant abdominal injury in acute multiple trauma and identify patients who require rapid intervention.2010 by the Society for Academic Emergency Medicine

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