Stellate Gnaglion Block in Refractory Bell's Palsy

Patients underwent a stellate-ganglion block at the anterolateral aspect of the C6 vertebra. After local analgesia (lidocaine 2%), a 22-gauge Quincke needle was placed in the anterolateral aspect of the C6 vertebral body. When the needle contacted the bone, it was drawn back 1 mm. 5 mL of 0·5% ropivacaine was subsequently injected next to the stellate ganglion to produce a sympathetic block.The effect of the stellate-ganglion block on the sympathetic nervous system was confirmed by the presence of Horner's syndrome (ie, facial anhydrosis, enophthalmos, ptosis, swelling of the lower eyelid, miosis, and blood-shot conjunctiva), and an increase in the temperature of the right hand of at least 2°F from baseline.