Combined Ultrasound Guided Bilateral Rectus Sheath and Erector Spinae Plain Blocks Versus Erector Spinae Plain Block for Intra and Postoperative Analgesia in Elective Abdominoplastic Surgeries. a Randomized Controlled Double Blinded Trial.

the patient will recieve ultrasound guided erector spinae plane blockbe. A 20-gauge needle will be placed between the erector spinae muscle and the thoracic transverse processes at the level of T10 using an 'in plane' technique, 20 ml of (0.25% bupivacaine and 1% xylocaine) will be injected on each side.

the patient will recieve ultrasound guided rectus sheath block. An 18-gauge needle will be introduced- in plane- just below the costal margin at an angle of approximately 45 degrees to the skin between the rectus abdominis muscle and posterior rectus sheath. 10 ml of (0.25% bupivacaine and 1% xylocaine) will be injected on each side.