Stellate ganglion block versus cervical epidural steroid injection for cervical radiculopathy: a comparative-effectiveness study

Cervical epidural steroid injection (C-ESI) and stellate ganglion block (SGB) are often performed as a treatment for cervical radicular pain.[1 2][1] Both can improve blood flow by sympathetic blockade, despite weak evidences demonstrating a sympathetic component to patients with cervical radicular