Erector Spinae Plan Block for Postoperative Analgesia

The trocar site incision was done 15 minutes after the block in the three groups. The skin was disinfected with chlorhexidine solution, and the high-frequency transducer was isolated with a sterile disposable plastic cover and gel. The patient was placed in lateral position. A high-frequency linear ultrasound probe was placed longitudinally lateral to the T8 spinous process by 3 cm. After identification of the 3 muscles superficial to the hyperechoic transverse process shadow as follows: trapezius, rhomboid major, and erector spinae. The needle was introduced in a cephalo-caudal orientation. The needle tip was positioned fascial plane between rhomboid major and erector spinae muscles. Hydrodissection by 1-2 ml of normal saline to visualize the plan, then deposition of local anesthetic was done. A total of 20 mL of 0.25% bupivacaine was injected here. The same procedure was repeated on the other side.

ultrasound-guided bilateral oblique subcostal TAP block with bupivacaine 0.25% (20ml on each side)