Is a Combination of the Serratus Intercostal Plane Block and Rectus Sheath Block Superior to the Bilateral Oblique Subcostal Transversus Abdominis Plane Block in Laparoscopic Cholecystectomy?

Abstract

Objective: The serratus intercostal plane block (SIPB) is a recently defined interfascial plane block. Theoblique subcostal transversus abdominis plane block (OSTAP) is another type of interfascial plane block, andit is also used as a part of multimodal analgesia in patients undergoing laparoscopic cholecystectomy (LC).In this retrospective study, we evaluated the effects of the bilateral OSTAP and a combination of the rightSIPB and bilateral rectus sheath block (RSB) on the postoperative pain and analgesia requirement in patientsundergoing LC.Materials and Methods: Data of the patients who underwent LC between May 2018 and November 2018were evaluated retrospectively. Postoperative pain was evaluated using the numeric rating scale (NRS), and24-hour tramadol consumption and rescue analgesia requirements were compared.Results: Bilateral OSTAP was applied to 47 patients, and SIPB+RSB was applied to 25 patients. Postoperative pain scores were similar between the two groups. In the first 24 hours, tramadol requirement in theSIPB+RSB group was significantly lower than in the OSTAP block group (p