Prior to the end of the laparoscopic surgery and any additional procedures, the bilateral celiac plexus block will be performed by the surgeon after identification of the aorta at the superior border of body of pancreas. A 22-gauge spinal needle will be inserted into the retroperitoneal fat on either side of the aorta under direct vision. Needle aspiration will be performed to exclude entry into vessels before administration of the interventional drug.

The block will contain 20 mL of 0.5% ropivacaine hydrochloride + 1:400000 adrenaline.

Intervention: Drug: 20 mL of 0.5% Ropivacaine

Patients in the control arm will undergo the celiac plexus block procedure as well. The block will contain 20 ml of 0.9% normal saline + 1:400000 adrenaline.

Intervention: Drug: 20 mL of 0.9% normal saline

Prior to the end of the laparoscopic surgery and any additional procedures, the bilateral celiac plexus block will be performed by the surgeon after identification of the aorta at the superior border of body of pancreas. A 22-gauge spinal needle will be inserted into the retroperitoneal fat on either side of the aorta under direct vision. Needle aspiration will be performed to exclude entry into vessels before administration of the interventional drug. The block will contain 20 mL of 0.5% ropivacaine hydrochloride + 1:400000 adrenaline.

The primary outcome will be morphine equivalent during the first postoperative 24 h

Patients will be recorded for up to 72 h postoperative opioid consumption.

Patients will be asked to complete a daily diary up to 72 h that records numeric pain rating scale