The aim to study the efficacy of bupivacaine 0.25% with dexamethasone and that of bupivacaine 0.25% alone for erector spinae plane block for postoperative analgesia in patients undergoing total abdominal hysterectomy Group 1: bupivacaine 0.25% + dexamethasone 8 mg

• Group 2: bupivacaine 0.25%
• Group3: control group A prospective Randomized Interventional double-blind study.

Optimal dynamic analgesia is recognized as the key to enhanced recovery following open abdominal surgery. In the last decade, there has been a significant shift away from thoracic epidural analgesia (TEA) that has been long considered as the gold standard. Various techniques have tried to replicate the analgesic efficacy of TEA. They include transversus abdominis plane analgesia (TAP), rectus sheath analgesia (RS), wound infusion analgesia (WI) and trans muscular quadratus lumborum analgesia. However, each of these techniques has specific limitations that prevent them from being the analgesic technique of choice for all open abdominal surgeries. Chin et al first described the erector spinae plane (ESP) block for providing analgesia following ventral hernia repair. The unique feature of the ultrasound-guided truncal blocks is that in all of these techniques, in contrast to peripheral nerve blocks, no nerve or plexus needs to be identified: Local anesthesia (LA) is injected in a particular muscle plane, in which the injectate spreads and reaches the intended nerves. This simple mechanism has made delivery of nerve blocks easy and versatile.

Inclusion Criteria:

• Women ranging age between 30-60 years a who undergoing elective total abdominal hysterectomy

Exclusion Criteria:

• Participants had known sensitivity to bupivacaine
• Participants had difficulty in intubation
• Participants were on chronic pain medication or already on long-term opioids
• Participants smokers
• Participants with disabilities who were unable to communicate pain levels
• refuse to consent

patients undergoing total abdominal hysterectomy

Participating patients, surgeons, anesthesiologists and medical investigators who will be involved in the data collection will be all blinded to the patient's group assignment until the collection of data for all cases will be complete for group 1 and 2.