Evolving Approach to Antibiotic Treatment of Pediatric Spondylodiscitis.

Objective: To describe for intervertebral spondylodiscitis (IS) its clinical characteristics, treatment approaches with intravenous (IV) antibiotics, and clinical implications of changes in treatment approach.

Study Design: This retrospective study included all children aged 0-18 years diagnosed with imaging-confirmed thoracic and lumbar IS from 2000 to 2022 at a tertiary pediatric hospital. Patients with longer IV treatment regimen were compared with those with a shorter clinically directed IV to oral regimen.

Results: In all, 124 cases were included with median age 14.9 months (IQR, 12.7-19.4 months) at diagnosis. Irritability and pain while changing diapers were common symptoms (52.4% and 49.2%, respectively). Elevated erythrocyte sedimentation rate (ESR) was the most common laboratory finding (95%; median, 50 mm/h [IQR 34-64 mm/h]). Elevated erythrocyte sedimentation rate was found in higher proportions (95%) compared with elevated C-reactive protein (76%; median, 1.8 mg/dL; P < .001). Since implementing the shorter clinically directed IV treatment duration for patients with thoracic and lumbar IS, hospitalization duration was decreased from a median of 12 to 8 days (P = .008) and IV treatment duration by a median of 14 to 8 days (P < .001). Only 1 patient (1.6%) in the clinically directed treatment group required rehospitalization owing to failure of therapy. Conversely, 9 of 124 children in the cohort suffered from IV treatment-related complications; all had been treated IV for prolonged periods.

Conclusions: Early transition to oral treatment in pediatric spondylodiscitis seems to be appropriate clinically and shortens hospital stay and IV treatment duration without major negative clinical impact.