OSTAP Versus TAP for Postoperative Pain Management in Laparoscopic Cholecystectomy Patients

The Comparison of Analgesic Sparing Effects of Oblique Subcostal Transversus Abdominis Plane Block (OSTAP) and Transversus Abdominis Plane Block (TAP) in Patients Undergoing Laparoscopic Cholecystectomy

The aim of the study is to compare the effectiveness and opioid sparing effects of TAP and OSTAP in patients undergoing laparoscopic cholecystectomy.

Patients undergoing laparoscopic cholecystectomy were separated into 3 groups. Group 1: Received TAP block Group 2: Received OSTAP Group 3: No Block Standard General Anesthesia was induced and maintained in all patients. At the end of the operation patient controlled analgesia with morphine was applied to all patients.

Pain scores were evaluated at 0,2,4,6,12,24 hours postoperatively. Total morphine consumption and pain scores were compared.

Inclusion Criteria:

• Scheduled for laparoscopic cholecystectomy
• ASA status I-II

Exclusion Criteria:

• Local anesthetic allergy
• Coagulopathy
• Infection at procedure site