Thoracic epidural and paravertebral blocks are the most widely regional technique used for postoperative analgesia after surgery, but they are difficult to perform and carry a risk of serious complication. In this study, investigator asses the efficacy of ultrasound ESPB on intraoperative and postoperative hemodynamics and patient satisfaction

This prospective, double-blinded, randomized, controlled study was conducted at the period from October 2018 to December 2019. Sixty adults' patients ASA I-III, their ages ranged from 25-60 years undergoing abdominal surgery under general anesthesia. Each patient assigned written informed consent before the block performance.

Patients refused, known allergy to the used drugs, with history of coagulopathy, major organ failure and obesity (BMI>40 kg/m2) were excluded from the study.

Patients were randomly allocated into two equal groups by a computerized randomization table: ESPB group, and control group. The patient and the staff providing the postoperative care were blinded to the group assignment.

ESPB group: Will undergo ESP block with 40 ml bupivacaine 0.25% (20 ml on each side) control group: anesthetized with the protocol followed by Minia University Hospital.

Anesthetic technique was standardized for all patients.

Inclusion Criteria:

1. Age18-70 .
2. Both gender.

4. ASA I-III .

Exclusion Criteria:

1. patient refuse
2. Drug allergy.
3. Morbid obesity (BMI >40 kg/m2).
4. Psychiatric disorder.
5. Opioid dependence .