• Serhat Ozciftci, Yeliz Sahiner, Ibrahim Tayfun Sahiner, and Taylan Akkaya.
• Hitit University Faculty of Medicine, Department of Anesthesiology and Reanimation, Çorum Merkez, Turkey.
• Int. J. Clin. Pract. 2022 Jan 1; 2022: 2668215.

BackgroundTransversus abdominis plane (TAP) block is used for postoperative analgesia in laparoscopic cholecystectomy. In laparoscopic cholecystectomy, the incisions are located mainly on the upper right side of the abdomen.AimsWe aim to determine the efficacy of less-invasive ultrasound-guided right unilateral oblique subcostal TAP block in laparoscopic cholecystectomy on postoperative analgesia by comparing patients undergoing bilateral TAP block and a control group.MethodsNinety patients were equally divided into control, unilateral, and bilateral TAP block groups. TAP blocks were conducted before anesthesia. No block was applied to the control group. Patients' demographics and postoperative pain, satisfaction, and nausea-vomiting scores and tramadol/ondansetron doses were evaluated.ResultsThere was no significant difference in the verbal numerical rating scale for pain scores at rest and during coughing (VNRS-R and VNRS-C) between unilateral and bilateral TAP block groups at postoperative 1 hour, 2 hour, 4 hour, 8 hour, 12 hour, and 24 hours. In addition, VNRS-R and VNRS-C scores were significantly higher in the control group than in the other two groups. Tramadol consumption in the control group was significantly higher than in the unilateral and bilateral TAP block groups (p ≤ 0.01), while no significant difference was identified between unilateral and bilateral TAP block groups (p=0.303). Nausea-vomiting scores and ondansetron consumption did not differ significantly between all the groups. Patient satisfaction was significantly higher in unilateral and bilateral groups (p < 0.01, p < 0.01) than in the control group, while there was no significant difference between unilateral and bilateral TAP block groups (p=0.793).ConclusionsRight unilateral TAP block provides postoperative analgesia as effective as bilateral TAP block in laparoscopic cholecystectomy.Copyright © 2022 Serhat Ozciftci et al.

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