Efficacy of Erector Spinae Plane Block after Trunk Surgery: A Stratified Randomized Observer-Blinded Comparative Study

Objective: Although epidural anesthesia and paravertebral blocks are routinely administered to achieve postoperative analgesia after trunk surgery, the use of anticoagulant therapy has increased the number of cases in which these procedures are contraindicated. The efficacy of erector spinae plane block (ESPB), an alternative method of postoperative analgesia, has been reported following trunk surgery. This study aimed to determine the analgesic effect of this procedure over a 48-h period following abdominal, breast, and spinal surgery.