Dexamethasone Plus Bupivacaine Versus Bupivacaine in Bilateral Trans-incisional Paravertebral Block in Lumbar Spine Surgeries .

Dexamethasone Plus Bupivacaine Versus Bupivacaine in Bilateral Trans-incisional Paravertebral Block in Lumbar Spine Surgeries, a Randomized Clinical Trial.

The purpose of this study is to compare addition of dexamethasone to bupivacaine versus bupivacaine alone for trans-incisional bilateral paravertebral block for postoperative analgesia in elective lumbar spine surgeries.

Inclusion Criteria:

• physical status American Society of Anesthesiologists (ASA) I or II.

Exclusion Criteria:

• refuse to participate have a body mass index (BMI) >30 kg/m2 ASA physical status >II have major illnesses (e.g., cardiac, respiratory, renal, hepatic or neurological) coagulation abnormalities infection at the injection site tumor in the paravertebral space sepsis Severe chest deformity or scoliosis, due to the possibility of injection into the meninges an allergy or contraindications to the drugs used in the study uncontrolled diabetes patients with active gastric ulceration a history of drug addiction or alcohol abuse a psychiatric illness mental retardation interfering with the evaluation of pain scores.