What is a Stellate Ganglion Block?
Stellate Ganglion Injection is an injection of local anesthetic in the "sympathetic nerve tissue" - the nerves which are a part of the Sympathetic Nervous System. The nerves are located on the either side of the voice box, in the neck.
What are the benefits of a Stellate Ganglion Block?
A Stellate Ganglion Block is a short, minimally invasive procedure that can effectively treat a wide array of conditions that have failed optimal medical management. These include providing relief for sympathetic-related pain in face, chest, and upper extremities, improving circulation in upper extremities and face, decreasing perspiration in upper extremities and face, decreasing hot flashes and associated sleep disturbances, and showing promise as a novel treatment for PTSD.
How long does the injection take?
The actual injection takes only a few minutes.
What is actually injected?
The injection consists of a local anesthetic (like lidocaine or bupivacaine). Epinephrine (adrenaline) may be added to prolong the effects of the injection.
Will the injection hurt?
The procedure involves inserting a needle through skin and deeper tissues (like a "tetanus shot"). So, there is some discomfort involved. However, we may numb the skin and deeper tissues with a local anesthetic using a very thin needle before inserting the actual block needle. Most of the patients also receive intravenous sedation and analgesia, which makes the procedure easy to tolerate.
How is the injection performed?
It is done either with the patient laying flat or slightly sitting up. The chin is slightly raised. The patients are monitored with EKG, blood pressure cuff and blood oxygen-monitoring device. Temperature sensing probes are also placed on your thumbs or hands. The skin in the front of the neck, next to the "voice box" is cleaned with antiseptic solution and then the injection is carried out.
What should I do after the procedure?
You should have a ride home. We advise the patients to take it easy for a day or so after the procedure. Perform the activities as tolerated by you. Some of the patients may go for immediate physical therapy.
How long the effect of the medication last?
The local anesthetic wears off in a few hours. However, the blockade of sympathetic nerves may last for many more hours. Usually, the duration of relief gets longer after each injection.
What are the risks and side effects?
This procedure is safe. However, with any procedure there are risks, side effects, and possibility of complications. The most common side effect is pain- which is temporary. The other risk involves bleeding, infection, spinal block, epidural block, and injection into blood vessels and surrounding organs. Fortunately, the serious side effects and complications are uncommon.
Who should not have this injection?
If you are allergic to any of the medications to be injected, if you are on a blood thinning medication (e.g. Coumadin), or if you have an active infection going on near the injection site, you should not have the injection.
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