Quadratus lumborum block for postoperative pain after caesarean section: A randomised controlled trial

BACKGROUND: Effective postoperative analgesia after caesarean section is important because it enables early ambulation and facilitates breast-feeding. Several case reports have shown that local anaesthetic injection around the quadratus lumborum muscle is effective in providing pain relief after various abdominal operations and in patients with chronic pain. The quadratus lumborum block (QLB) is performed in close proximity to the surface and uses a fascial compartment path to extend the distribution of local anaesthesia into the posterior abdominal wall and paravertebral space. This central effect can be of vital importance when managing the visceral pain after caesarean section. OBJECTIVE: We hypothesised that the QLB after caesarean section can provide adequate pain relief as part of a multimodal approach. DESIGN: Double-blind, randomised and controlled clinical trial. SETTING: A single centre between June 2014 and December 2014. PATIENTS: Fifty patients who were American Society of Anesthesiologists physical status 1 or 2, with normal singleton pregnancies with a gestation of at least 37 weeks, and scheduled for elective caesarean section under spinal anaesthesia, were enrolled into the study. They were randomly assigned to receive a QLB (n = 25) with 0.125% bupivacaine 0.2 ml kg−1 (Group 1) or a QLB (n = 25) with 0.9% Normal saline 0.2 ml kg−1 (Group 2). MAIN OUTCOME MEASURES: The primary outcome measure for the study was the morphine demands and dose...
Source: European Journal of Anaesthesiology - Category: Anesthesiology Tags: Regional anaesthesia Source Type: research