Arzu Kıtlık1, Mehmet Ali Erdogan2, Ulku Ozgul1, Mustafa Said Aydogan1, Muharrem Ucar1, Huseyin Ilksen Toprak1, Cemil Colak3, Mahmut Durmus1. 1. Inonu University, School of Medicine, Department of Anaesthesiology and Reanimation, Malatya, Turkey. 2. Inonu University, School of Medicine, Department of Anaesthesiology and Reanimation, Malatya, Turkey. Electronic address: drmalierdogan@gmail.com. 3. Inonu University, School of Medicine, Department of Biostatistics and Medical Informatics, Malatya, Turkey.
Abstract
BACKGROUND:Transversus abdominis plane (TAP) block is a peripheral nerve block that reduces postoperative pain, nausea, vomiting and the need for postoperative opioids following various types of abdominal surgery. The primary aim of the present study was to evaluate the effects of TAP block on postoperative analgesia and opioid consumption in living liver donors in whom a right "J" abdominal incision was used. METHODS: This prospective, double-blinded, randomized controlled study was conducted with 50 living liver donors, aged 18-65years, who were scheduled to undergo right hepatectomy. Patients who received ultrasonography-guided subcostal TAP block were allocated into Group 1, and patients who did not receive TAP block were allocated into Group 2. The TAP blocks were performed bilaterally at the conclusion of surgery using 1.5mg∗kg-1 bupivacaine diluted with saline to reach a total volume of 40mL. For each patient, morphine consumption, pain scores at rest and movement, sedation scores, nausea, vomiting and the need for antiemetic medication were assessed at 0, 2, 4, 6, 12 and 24h postoperatively by researchers who were blinded to the study groups. RESULTS:Morphine consumption was significantly lower in Group 1 than in Group 2 at the 2nd, 6th and 24th hours (P<0.05). The mean total morphine consumption values after 24h were 40mg and 65mg in Groups 1 and 2, respectively. The TAP block significantly reduced postoperative visual analog scale pain scores both at rest and during movement at 0, 2, 4, 6, and 24h postoperatively (P<0.05). CONCLUSIONS: The TAP block reduced 24-h postoperative morphine consumption and contributed to analgesia in living liver donors who underwent upper abdominal wall incisions.
RCT Entities:
BACKGROUND: Transversus abdominis plane (TAP) block is a peripheral nerve block that reduces postoperative pain, nausea, vomiting and the need for postoperative opioids following various types of abdominal surgery. The primary aim of the present study was to evaluate the effects of TAP block on postoperative analgesia and opioid consumption in living liver donors in whom a right "J" abdominal incision was used. METHODS: This prospective, double-blinded, randomized controlled study was conducted with 50 living liver donors, aged 18-65years, who were scheduled to undergo right hepatectomy. Patients who received ultrasonography-guided subcostal TAP block were allocated into Group 1, and patients who did not receive TAP block were allocated into Group 2. The TAP blocks were performed bilaterally at the conclusion of surgery using 1.5mg∗kg-1 bupivacaine diluted with saline to reach a total volume of 40mL. For each patient, morphine consumption, pain scores at rest and movement, sedation scores, nausea, vomiting and the need for antiemetic medication were assessed at 0, 2, 4, 6, 12 and 24h postoperatively by researchers who were blinded to the study groups. RESULTS:Morphine consumption was significantly lower in Group 1 than in Group 2 at the 2nd, 6th and 24th hours (P<0.05). The mean total morphine consumption values after 24h were 40mg and 65mg in Groups 1 and 2, respectively. The TAP block significantly reduced postoperative visual analog scale pain scores both at rest and during movement at 0, 2, 4, 6, and 24h postoperatively (P<0.05). CONCLUSIONS: The TAP block reduced 24-h postoperative morphine consumption and contributed to analgesia in living liver donors who underwent upper abdominal wall incisions.
Authors: Lucas W Thornblade; Yongwoo D Seo; Tracy Kwan; Jane H Cardoso; Eric Pan; Gregory Dembo; Raymond S W Yeung; James O Park Journal: J Gastrointest Surg Date: 2018-02-05 Impact factor: 3.452