Pelvic Free Fluid in Asymptomatic Pediatric Blunt Abdominal Trauma Patients: A Case Series and Review of the Literature

BackgroundWith focused assessment with sonography in trauma (FAST) examinations being performed more commonly on pediatric trauma patients, emergency providers will encounter a positive FAST examination in patients with benign abdominal examinations. This poses a diagnostic dilemma for the provider when deciding whether to obtain a computed tomography (CT) scan of the abdomen/pelvis, observe the patient, or admit the patient.Case ReportWe report a series of pediatric patients involved in blunt abdominal trauma who had small pelvic free fluid on FAST but a benign abdominal examination. Three patients were managed without CT scan and 2 with CT scan. All patients did well and were discharged home.Why Should an Emergency Physician Be Aware of This?Free intra-abdominal fluid may be physiologic in both male and female pediatric patients. Clinical examination and hemodynamic stability should be taken into account when deciding to order a CT scan. We review the literature and highlight new protocols that may decrease CT utilization and ionizing radiation exposure, though further studies in this specific population are needed.