Stellate ganglion block

Overview

A stellate ganglion block is an injection of numbing medicine near the stellate ganglion, a group of sympathetic nerves at the front of the neck.

GSMC is led by Dr. Dharam Mann, who completed fellowships in pain management, cardiac anesthesia and critical care at Massachusetts General Hospital/Harvard.

It is used to diagnose and treat sympathetically maintained pain in the face, neck and arm, such as complex regional pain syndrome (CRPS). A series of blocks may be recommended.

How it works

Using ultrasound or X-ray guidance, the physician places a thin needle near the stellate ganglion and injects a local anesthetic.

Who it may be for

• Complex regional pain syndrome of the arm
• Certain nerve pain of the head, neck or arm
• Some vascular conditions affecting the arm

Your exam and imaging decide whether this treatment is appropriate for you.

What to expect

1. Before: we review your medications (especially blood thinners), allergies and imaging. You may need a driver.
2. During: you lie on a procedure table, the skin is cleaned and numbed, and the physician uses X-ray (fluoroscopy) or ultrasound guidance to place the needle.
3. After: you are monitored briefly and usually go home the same day. Keep a pain diary so we can judge the response.

Recovery

Temporary hoarseness, a droopy eyelid or warmth in the arm on the treated side are common and expected for a few hours. Your instructions may differ.

Risks and side effects

Every procedure has risks. Your physician will review them with you, including:

• Temporary hoarseness or difficulty swallowing
• Temporary droopy eyelid
• Bleeding
• Infection
• Injection into a blood vessel (rare)

Insurance and cost

Many plans, including Medicare, may cover this treatment when criteria are met. We verify benefits before scheduling. See accepted insurance.

Related conditions

• Neuropathic Pain

Frequently asked questions