• Luciano Frassanito, Sara Pitoni, Gianluigi Gonnella, Sergio Alfieri, Miryam Del Vicario, Stefano Catarci, and Gaetano Draisci.
• Institute of Anesthesiology and Intensive Care Medicine, Catholic University of the Sacred Heart, "A. Gemelli" University Polyclinic Foundation, Rome, Italy.
• Korean J Anesthesiol. 2017 Feb 1; 70 (1): 46-51.

BackgroundThe transversus abdominis plane (TAP) block is a regional anesthesia technique that effectively reduces the pain intensity and use of analgesia in abdominal surgery. The aim of this study was to determine the utility of the ultrasound-guided TAP block in improving the efficacy of the ultrasound-guided ilioinguinal/iliohypogastric nerve (IIN/IHN) block for intraoperative anesthesia and postoperative pain control in day-case inguinal hernia repair (IHR).MethodsWe conducted a descriptive study of patients undergoing elective primary unilateral open IHR. Fifty-nine patients were divided into two groups according to the anesthetic technique used: ultrasound-guided TAP block plus ultrasound-guided IIN/IHN block (TAP group) vs. ultrasound-guided IIN/IHN block alone (IIN/IHN group). The outcome measures were the adequacy of anesthesia during surgery and postoperative analgesia.ResultsFour patients (12.5%) in the TAP group and 10 patients (37.0%) in the IIN/IHN group experienced inadequate anesthesia and needed systemic sedation (P < 0.05). No significant differences in additional local anesthetic volume were found between the two groups. Patients in the TAP group reported lower pain scores at the end of surgery (0.4 ± 0.8 vs. 2.1 ± 2.5, P < 0.01), at 2 hours after surgery (0.8 ± 1.3 vs. 3.0 ± 2.2, P < 0.01), at discharge (1.4 ± 1.2 vs. 4.3 ± 2.2, P < 0.01), and at 24 hours (1.5 ± 1.1 vs. 4.5 ± 2.3, P < 0.01).ConclusionsThe combination of the TAP and IIN/IHN blocks is associated with better intraoperative anesthesia and lower postoperative pain scores compared with the IIN/IHN block alone.

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