With thyroid surgery being performed as an ambulatory procedure, most recent studies
concerning post thyroidectomy analgesia are focused on regional techniques such as bilateral
superficial cervical plexus block (BSCPB) and bilateral combined superficial and deep
cervical plexus block. But, data regarding the efficacy of BSCPB are controversial. Hence the
investigators compared the efficacy of BSCPB with 0.25% bupivacaine with or without clonidine
in thyroidectomy, as preemptive analgesia.
The hypothesis was bupivacaine with the addition of clonidine would help in reducing
postoperative pain and thereby reduce the need for postoperative analgesia.