NOL-Guided Superficial Parasternal Intercostal Plane Block Versus Erector Spinae Plane Block

Immediately after induction of general anesthesia, ropivacaine 0.5% with dexamethasone 8mg/20ml (maximum dose 1.5 mg/kg ropivacaine per each side) is administered in the superficial parasternal intercostal plane using real-time ultrasound guidance.

Immediately after induction of general anesthesia, ropivacaine 0.5% with dexamethasone 8mg/20ml (maximum dose 1.5 mg/kg ropivacaine per each side) is administered in the plane deep to the erector spinae muscle, typically at the level of the 5th thoracic vertebra, under real-time ultrasound guidance.

During general anesthesia, fentanyl is administered according to NOL monitoring.

Morphine 0.03 mg/kg is administered postoperatively for NRS scores equal or higher than 4.