LKnative - Stellate ganglion block

5 – Sonoanatomy

At the level of the Chassaignac’s tubercle (the anterior tubercle of transverse process of vertebra C6) the sympathetic trunk is typically enclosed by split layers of the prevertebral fascia. It is not possible to visualize the sympathetic trunk sonographically. Local anaesthetic should be deposited on both sides of the prevertebral fascia.

Image missing
Prevertebral fascia (magenta line), longi colli muscle (white asterix), Chassaignac’s tubercle (yellow asterix), thyroid gland (red asterix), carotid artery (A), internal jugular vein (cyan arrow), sternocleidomastoid (green asterix). Needle (red).