Ultrasound-guided bilateral rectus sheath block with and without dexmedetomidine in pediatric umbilical hernia repairs: a retrospective interrupted time series analysis

Bilateral rectus sheath block (RSB) is frequently used to provide analgesia following umbilical hernia repair in pediatrics.[1][1] Dexmedetomidine use in pediatric truncal nerve blocks has increased despite limited evidence of its efficacy and safety,[2][2] with no studies evaluating its effect in