Erector spinae plane block versus subcostal transversus abdominis plane block in patients undergoing open liver resection surgery: A randomized controlled trial

•Liver resection surgery is associated with substantial postoperative pain.•Subcostal transversus abdominis plane block is the suggested regional block.•Erector spinae plane block reduced opioid consumption.•Erector spinae plane block prolonged the duration of analgesia.