compare between Quadratus lumborum block and unilateral intrathecal block for patients undergoing inguinal hernia repair regarding the quality of anesthesia and hemodynamic stability of patients.

comparison between unilateral intrathecal block anesthesia (unilateral SA) and Quadratus lumborum block for inguinal hernia repair unilateral intrathecal block is widely used nowadays for unilateral inguinal hernia repair, providing intense sensory and motor blockade. Limiting the block to the operative site by using small doses of hyperbaric solutions injected slowly through a directional needle and maintaining a lateral decubitus position for a certain duration has been proposed, to produce high quality, long-duration analgesia, with minimal hemodynamic adverse events.

Previous case report studies stated that we can use Quadratus Lumborum Block as the sole anesthetic technique for open hernia repair.

Inclusion Criteria:

- physical status ASA: I-II BMI >18kg/m2<30kg/m2 written informed consent from the patient scheduled for open unilateral inguinal hernia repair

Exclusion Criteria:

• uncooperative patient
• Allergy to local anesthetic drugs
• patients on chronic alcohol, opioid, tranquilizer or sedative use
• Pregnant females.
• Psychological, mental disorders, or depression.
• Patients receiving anticoagulants therapy or suspected coagulopathy.
• Patients with infection or previous surgery at sit of anesthetic procedures.
• Patients with significant cardiovascular, respiratory, renal, hepatic, or metabolic disease

1 year