Pediatric Abdominal Pain in Children Presenting to the Emergency Department

Background Undifferentiated abdominal pain is a common pediatric presentation to the emergency department (ED). Objectives The objective of this study was to describe the prevalence of clinically significant abdominal pathology (CSAP) including appendicitis, patterns of imaging and pathology tests, and management and outcomes of children with abdominal pain in ED. Methods A prospective multicenter observational cohort pilot study of children under the age of 16 years presenting to 4 Australian EDs with abdominal pain was performed for a 1-month period at each site. The primary outcome was to describe the prevalence of CSAP and appendicitis. Age, sex, length of stay, surgery or interventional procedure, investigations, and analgesia use were recorded. Results There were 555 presentations with abdominal pain during the study period with a median age of 9 years (interquartile range, 6-12 years). Eighty-two patients (14.8%; 95% confidence interval, 11.8-17.7) had CSAP, of which 41 (7.4%, 5.2-9.6) had appendicitis. Three hundred forty-eight (62.7%, 58.7-66.7) were discharged directly from ED, and 207 (37.3%, 33.2-41.3) were admitted. Two hundred fifty-five (45.9%, 41.8-50.1) had pathology tests, and 173 (31.2%, 27.3-35.1) had imaging tests in ED. Of those contacted for telephone follow-up, 100 (50.5%, 43.5-57.5) of 198 reported ongoing pain after discharge, and 13.1% (8.4-17.8) had missed over a week of school due to abdominal pain. Conclusions The prevalence of CSAP and appendicitis in our study was 14.8% (11.8-17.7) and 7.4% (5.2-9.6), respectively. Fewer than half of patients received blood tests, and a third received imaging during their ED attendance. The presentation of abdominal pain conveys a significant health burden on families with time off school and ongoing symptoms of pain.