Continuous Local-anesthetic Wound Infusion for Neck Dissection

Prior to the end of neck dissection and any additional procedures, the bilateral catheter will be placed adjacent to the cervical plexus underneath the internal jugular vein, left in place for 24 hours and removed in a similar way to the Redon drainage by the surgeon. The CWI block will start immediately at a speed of 4ml/h containing 0.5% lidocaine hydrochloride + 1:400000 adrenaline.

Prior to the end of neck dissection and any additional procedures, the bilateral catheter will be placed adjacent to the cervical plexus underneath the internal jugular vein, left in place for 72 hours and removed in a similar way to the Redon drainage by the surgeon. The CWI placebo will start immediately at a speed of 4ml/h containing 0.9% normal saline + 1:400000 adrenaline.