Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/16/2025

Erector Spinae Plane Block Guideline Summary

Current Guideline Recommendations

  • The European Society for Paediatric Anaesthesiology recommends ropivacaine 0.2% for ESP blocks at a volume of 0.2-0.5 ml/kg 2, 3
  • The American Society of Anesthesiologists recommends a standard concentration of 0.25% bupivacaine for peripheral nerve blocks 4

ESP Block Efficacy Evidence

  • Studies have demonstrated that ESP blocks with 0.2-0.25% ropivacaine provide effective analgesia for thoracic procedures 1
  • ESP blocks performed with higher concentrations have shown lower pain scores and reduced opioid consumption compared to no block 1
  • ESP blocks have shown similar analgesic efficacy to paravertebral blocks in multiple studies 1

Safety Considerations

  • When using higher concentrations, careful calculation of total dose in mg/kg is essential to prevent local anesthetic toxicity 5
  • The maximum safe dose of ropivacaine should not be exceeded regardless of concentration used 5

Clinical Application

  • If using a higher concentration of ropivacaine (>0.25%), consider reducing the volume proportionally to maintain the same total dose 5

Common Pitfalls

  • Exceeding maximum safe dose when using higher concentrations 5
  • Failure to adjust volume when increasing concentration 5
  • Inadequate monitoring for systemic toxicity 5