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Randomized Controlled Trial
, 34, 72-8

Transversus Abdominis Plane Block as a Component of Multimodal Analgesia for Laparoscopic Cholecystectomy

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Randomized Controlled Trial

Transversus Abdominis Plane Block as a Component of Multimodal Analgesia for Laparoscopic Cholecystectomy

Menekse Oksar et al. J Clin Anesth.

Abstract

Objective: To evaluate and compare intercostal-iliac transversus abdominis plane (TAP) and oblique subcostal TAP (OSTAP) blocks for multimodal analgesia in patients receiving laparoscopic cholecystectomy.

Design: A prospective, randomized, double-blinded clinical study.

Setting: Operating room, postoperative recovery area, and ward.

Patients: In total, 60 laparoscopic cholecystectomy patients (43 women, 17 men, American Society of Anesthesiologists grades I-II) were enrolled from the general surgery department of our tertiary care center.

Intervention: The patients were assigned to 1 of the 3 groups. Group 1 received TAP blocks (n=20), group 2 received OSTAP blocks (n=20), and group 3 patients were used as controls and received patient-controlled analgesia (PCA) only (n=20). After the induction of anesthesia, blocks were performed bilaterally in study groups 1 and 2, using 20mL of lidocaine (5mg/mL). PCA with intravenous tramadol was routinely provided for all patients during the first 24hours.

Measurements: The intraoperative use of remifentanil, postoperative visual analog scale (VAS) scores, demand for PCA, and total analgesic consumption were recorded.

Main results: The patients in the control group had greater analgesic demands and analgesic consumption than did those in groups 1 and 2. However, patients in the OSTAP group had lower VAS scores than did those in groups 1 and 3.

Results: The demand for analgesia was greater in the control group than in groups 1 and 2. Moreover, lower VAS scores were recorded in the OSTAP group than in groups 1 and 3 and were positively correlated with total PCA consumption among all patients. However, postoperative VAS scores were negatively correlated with the total intraoperative consumption of remifentanil at 24hours.

Conclusions: TAP and OSTAP blocks improved postoperative analgesia in patients receiving laparoscopic cholecystectomy, which resulted in lower VAS scores and reduction in total analgesic consumption.

Keywords: Laparoscopic cholecystectomy; Oblique subcostal transversus abdominis plane block; Transversus abdominis plane block.

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