Efficacy of Adding Dexmedetomidine in Ultrasound-guided Intermediate Cervical Plexus Block for Thyroidectomy Surgery

adding dexmedetomidine as adjuvant with bupivacaine in Ultrasound-guided Intermediate Cervical Plexus Block for Thyroidectomy surgery.

patients will receive bilateral Intermediate Cervical plexus block with 20 ml bupivacaine 0.25%.

surgical removal of all or part of thyroid gland.

the injection of local anesthetic in intermediate cervical plexus nerve block is made between the investing layer of the deep cervical fascia and the prevertebral fascia. Following negative aspiration, 1-2 mL of local anesthetic is injected to confirm the proper injection site.