The stellate ganglion, part of the sympathetic nervous system, is a crucial nerve structure located in the lower neck, formed by the fusion of the inferior cervical and first thoracic sympathetic ganglia. In medical contexts, this ganglion plays a significant role in regulating sympathetic innervation to the head, neck, and upper limbs. Understanding its anatomy and function is vital for various diagnostic and therapeutic procedures.
In ultrasound, the stellate ganglion can be targeted for nerve blocks to manage conditions like complex regional pain syndrome (CRPS), vascular insufficiencies, or intractable angina. Accurate ultrasound-guided visualization ensures precise needle placement, minimizing risks and enhancing the efficacy of the block. Its proximity to critical vascular structures necessitates careful sonographic assessment.
