Stellate ganglion block (SGB) is used for the treatment of many medical conditions including complex regional pain syndrome and peripheral vascular disease. Historically, the anesthetic has been injected at the C6 or C7 vertebral level with the Chassignac’s tubercle, the cricoid cartilage, and the carotid artery serving as the anatomic landmarks to the procedure. Due to a high risk of side effects, for example, pneumothorax and vascular puncture, an image-guided approach is strongly suggested, even with the “safer” C6 approach.
