Quadratus Lumborum Block Versus Transversus Abdominis Plane Block for Postoperative Analgesia in Children

Abdominal field blocks have been used in anesthesia for surgery involving the anterior abdominal wall with ultrasound-guided technique. TAP block is a regional anesthetic technique that blocks neural afferents of the anterolateral abdominal wall. Using anatomical landmark guidance or with the aid of ultrasound (US), local anesthetic is injected into the transversus abdominis fascial plane, where the nerves from T6 to L1 are located. Ultrasound-guided quadratus lumborum (QL) block is considered now as one of the novel truncal abdominal blocks, as it is effective in preventing somatic pain associated with upper and lower abdominal surgeries.