Abstract
The stellate ganglion, which is also known as the inferior cervical ganglion, is located on the anterior surface of the longus colli muscle. This muscle lies just anterior to the transverse processes of the seventh cervical and first thoracic vertebrae. The stellate ganglion is made up of the fused portion of the seventh cervical and first thoracic sympathetic ganglia. The stellate ganglion lies anteromedial to the vertebral artery and is medial to the common carotid artery and jugular vein. The stellate ganglion is lateral to the trachea and esophagus. Stellate ganglion block is indicated in the treatment of acute herpes zoster in the distribution of the trigeminal nerve and cervical and upper thoracic dermatomes as well as frostbite and acute vascular insufficiency of the face and upper extremities. Stellate ganglion block is also indicated in the treatment of reflex sympathetic dystrophy of the face, neck, upper extremity, and upper thorax; Raynaud syndrome of the upper extremities; and sympathetically mediated pain of malignant origin. The posterior approach to the stellate ganglion is used in two clinical situations: (1) when infection, trauma, or tumor precludes use of the traditional anterior approach to stellate ganglion block and (2) when neurolysis of the sympathetic innervation of the upper extremity is desired.
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