QLB vs. Wound Infiltration in Cesarean Section

The obstetrician (multiple, experienced clinicians) will infiltrate the wound (Pfannenstiel incision) subcutaneously at the end of surgery with 20 ml normal saline. Subsequently, a US-guided QLB using a linear/convex transducer will be performed by the anesthesiologist using 30 ml levobupivacaine 0.18% (20 ml 0.25% levobupivacaine + 10 ml normal saline) bilaterally (60 ml in total).

Participants will receive 20 ml levobupivacaine 0.25% infiltration in the surgical wound and US-guided QLB with 30 ml normal saline bilaterally (60 ml in total).