Management of children presenting with low back pain to emergency department.

OBJECTIVE: We aimed to describe characteristics, etiology and health care use in children with low back pain (LBP) presenting to pediatric emergency department (ED) and to develop an algorithm to design a diagnostic approach.

METHODS: We conducted a 7-year cohort study of children admitted to ED with a primary complaint of LBP. They were classified into diagnostic groups: visceral LBP; traumatic LBP; non-visceral/non-traumatic LBP. To identify high-risk factors (red flags) associated with severe prognosis conditions (SPCs), we analyzed the non-visceral/non-traumatic group comparing the SPC children with those children without SPCs.

RESULTS: Our population comprised 140 females (52.6%) and 126 males (47.4%), with a median age of 10.5 years. Eighty children (30.3%) were hospitalized, with an average length of stay of 8.53 ± 9.84 days. SPCs accounted for 28 patients (18.9%) of overall 148 with non-traumatic/non-visceral LBP. In this group, SPCs presented with earlier onset and longer duration of symptoms than non-SPCs. The presence of red flags was more significant in the SPCs group, 28 vs 18; 100% vs 15% (p < 0.001); sensitivity 100%, specificity 85%. Among SPCs, 78.6% were hospitalized vs non-SPC (16.8%) (p < 0.001); within SPC group 2 patients returned because of onset of red flags.

CONCLUSION: Our study identified significative high-risk factors (red flags) associated with serious outcomes (SPC group) compared to the non-SPC group, thereby ensuring specific treatment. We developed an algorithm based on previous literature and the findings of our study, which will need to be validated by future prospective research.