Randomized controlled clinical Trial to compare the efficacy and duration of postoperative analgesia achieved after adding dexmedetomidine or dexamethasone to bupivacaine in TAP block for lower open abdominal surgeries.

A Comparative study between the use of dexmedetomidine versus dexamethasone as adjuvant to bupivacaine in ultrasound-guided transversus abdominis plane block for post-operative pain relief in patients undergoing lower open abdominal surgeries

Inclusion Criteria:

Adult patients, Age 20-60 years. Elective operation under general anesthesia. Physical Status: ASA I and II Patients. Body mass index 25-35 kg/m2.

Exclusion Criteria:

• Infection at site of injection.
• Patient refusal.
• Psychiatric or physical illness that lead to inability to cooperate, speak or read.
• Abdominal operations under spinal anesthesia.
• History or evidence of coagulopathy.
• Known allergies to drugs used .
• Preexisting neurological disorders.