What is Stellate Ganglion Block (SGB)?
A Stellate Ganglion Block (SGB) involves injecting local anesthetic, typically bupivacaine or lidocaine, into sympathetic nerves in the neck. The procedure is performed under imaging guidance like ultrasound or fluoroscopy to ensure accuracy. It helps diagnose and treat chronic pain conditions by blocking pain signals and improving circulation. The procedure is quick, usually taking less than five minutes, and is done on an outpatient basis.
SGB helps many patients get relief from some or all of the following:
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Frequently asked questions (FAQ)

A Stellate Ganglion Block is a procedure where a local anesthetic, with or without a steroid, is injected into the stellate ganglion, a collection of nerves in the neck. This helps relieve pain and other symptoms by blocking nerve signals
The procedure involves lying on your back, with your neck cleaned and numbed with local anesthesia. Imaging guidance (like X-rays or ultrasound) is used to accurately place the needle.
Common side effects include a hoarse voice, droopy eyelid, red or "bloodshot" eye, tearing, nasal stuffiness, and a sensation of a "lump" in the throat. These usually resolve as the anesthetic wears off.
No, it is recommended not to drive on the day of the procedure due to potential side effects. Arrange for someone to drive you home and stay with you for the rest of the day if needed.
The full effects of an SGB typically occur within 7-10 days after the injection. Immediate pain relief from the anesthetic usually lasts 4-8 hours.
Risks include a drop in blood pressure, potential air leak from the lung, and accidental injection into a blood vessel. These are rare and can be managed by the healthcare provider.
Yes. However, avoid strenuous activities on the day of the procedure and follow any specific post-procedure instructions from your CIT Clinics provider.
Yes, you should avoid food for a certain period before the procedure (typically 6 hours) and clear fluids up to 2 hours before. Specific instructions will be provided during your onboarding process and treatment preparation.
The number of treatments varies among individuals. Some may require multiple injections to achieve long-lasting relief.