Bilateral Transversus Abdominis Plane Block With Exparel Verus Continuous Epidural Analgesia With Bupivacaine

Transversus Abdominis Plane (TAP) blocks will be performed preoperatively. An in-plane ultrasound will be used in TAP block procedure.

Epidural catheters will be inserted preoperatively.

Once the target area is positioned, plain bupivacaine 0.25%, 20ml will be given to open the space and then single dose (10ml) of liposomal bupivacaine (Exparel) mixed with saline (10 ml) will be injected in each side. Total dose of Exparel will be 20 mL.

Once an epidural catheter is successfully positioned, an infusion will be initiated intraoperatively. Bupivacaine standard solution without additives will be prepared for each patient in epidural group.