Dexamethasone Versus Dexmedetomidine

At the level of the umbilicus, the high-frequency ultrasound linear array probe (L 4 - 12) will be placed transversely on the anterolateral abdominal wall between the subcostal margin and the iliac crest. localization of the fascial plane between the internal oblique and the transversus abdominis muscles will be done. The local anesthetic solution mixture will be injected with short bevel needle. The TAP block will be performed on the both side using the same technique and the same local anesthetic solution mixture volume. For the patients randomized to dexamethasone group, the local anesthetic solution mixture will consist of a total volume of 40 ml containing bupivacaine 0.25 % and dexamethasone 8 mg.

At the level of the umbilicus, the high-frequency ultrasound linear array probe (L 4 - 12) will be placed transversely on the anterolateral abdominal wall between the subcostal margin and the iliac crest. localization of the fascial plane between the internal oblique and the transversus abdominis muscles will be done. The local anesthetic solution mixture will be injected with short bevel needle. The TAP block will be performed on the both sides using the same technique and the same local anesthetic solution mixture volume. For the patients randomized to dexmedetomidine group, the local anesthetic solution mixture will consist of a total volume of 40 ml containing bupivacaine 0.25 % and dexmedetomidine 80 µg.

38 ml of the solution will be prepared to be used in transversus abdominis plane block