Surgeon performed transversus abdominis plane block (TAP) with liposomal bupivacaine (LP) is an effective adjunct for perioperative analgesia after open liver surgery. (April 2017) - Franssen, B.; Hernandez, M.; Saleem, H.; Panchamia, J.; Farnell, M.; Kendrick, M.; Nagorney, D.; Truty, M.; Smoot, R.