Abstract

Background: Previous abdominal wall repair may alter the rectus abdominis muscle structure and render rectus sheath block (RSB) infeasible in pediatric cardiac surgery.

Case Presentation: A 5-year-old boy with a history of siloplasty and omphalocele repair underwent right ventricle-to-pulmonary artery conduit replacement. Deep parasternal intercostal plane block and RSB had been planned. However, ultrasound pre-scanning failed to identify the rectus...