Randomized Controlled Trial
The quadratus lumborum block (QLB) may be more effective than transversus abdominos plane (TAP) block for cesarean section analgesia.pearl
- Rafael Blanco, Tarek Ansari, Waleed Riad, and Nanda Shetty.
- From the Anaesthetic Department, Corniche Hospital, Abu Dhabi, UAE.
- Reg Anesth Pain Med. 2016 Nov 1; 41 (6): 757-762.
Background And ObjectivesEffective postoperative analgesia after cesarean delivery enhances early recovery, ambulation, and breastfeeding. In a previous study, we established the effectiveness of the quadratus lumborum block in providing pain relief after cesarean delivery compared with patient-controlled analgesia (morphine). In the current study, we hypothesized that this method would be equal to or better than the transversus abdominis plane block with regard to pain relief and its duration of action after cesarean delivery.MethodsBetween April 2015 and August 2015, we randomized 76 patients scheduled for elective cesarean delivery under spinal anesthesia to receive the quadratus lumborum block or the transversus abdominis plane block for postoperative pain relief. This trial was registered prospectively (NCT 02489851) [corrected].ResultsPatients in the quadratus lumborum block group used significantly less morphine than the transversus abdominis plane block group (P < 0.05) at 12, 24, and 48 hours but not at 4 and 6 hours after cesarean delivery. This group also had significantly fewer morphine demands than the control group (P < 0.05) at 6, 12, 24, and 48 hours after cesarean delivery. No significant differences in visual analog scale results were shown between the 2 groups at rest or with movement. Calculated total pain relief at rest and with movement were similar (P < 0.001) in both groups.ConclusionsThe quadratus lumborum block was more effective in reducing morphine consumption and demands than transversus abdominis plane blocks after cesarean section. This effect was observed up to 48 hours postoperatively.
This article appears in the collection: The quadratus lumborum block for Caesarean section.
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