A. Brachial Plexus Block.
B. Phrenic Nerve Block.
C. Stellate Ganglion Block.
D. Laryngeal Nerve Block.
Ans:C. Stellate Ganglion Block.
Stellate Ganglion Block / Cervicothoracic sympathetic block
- Formed by the fusion of lower cervical and first thoracic ganglion.
Level of blockage:
- Blocked anterior to the tubercle of transverse process of C6 vertebra
- i.e., chassaignac tubercle at the level of cricoid cartilage
Signs of successful blockade:
- Horner syndrome(miosis)
- An absence of ciliospinal reflex
- Flushing of the face
- Conjunctival congestion
- Nasal stuffiness (Gutman’s sign)
- Injection of the tympanic membrane (muller’s syndrome)
- Increased skin temprature and lacrimation.
- Treatment of acute herpes zoster in the distribution of the trigeminal nerve, cervical and upper thoracic dermatomes.
- Acute vascular insufficiency of upper limb and face.
- Frost bite
- Reflex sympathetic dystrophy of face, neck and upper extremities.
- Raynaud’s syndrome of upper extremities.