Can this special injection into the neck relieve pain? Let's learn about Stellate Ganglion Block.

Do you have persistent pain in your neck, head, arm, or upper chest that doesn't go away with medication? Sometimes, the cause of this kind of pain can be a small problem in our nervous system. Today, we're going to talk about a special, slightly different treatment method that doctors use in such cases. This is called a 'Stellate Ganglion Block'. Although the name may sound a bit complicated, let's simply understand what this does.

What is Stellate Ganglion Block (SGB)?

Simply put, a Stellate Ganglion Block (SGB) is an injection of an anesthetic. But this is not just any regular injection. It is injected into a special group of nerves in our neck, specifically on either side of our voice box. This group of nerves is called the 'Stellate Ganglion'.

There are two main purposes for administering this vaccine:

1. To relieve some severe, chronic pain in the head, neck, upper arms, and upper chest.

2. Blood circulation to the hands, that is, improving blood flow.

Okay, so what is this stellate ganglion?

A ganglion is a cluster of nerve cells that come together, like a junction at a train station, a center where nerve messages are sent back and forth.

The stellate ganglion is one such nerve cluster. It is located in the front of our neck, just below the collarbone, near the first rib. We have ganglions like this on both sides of our neck. The word 'stellate' means 'like a star'. This means that the shape of this nerve cluster can resemble the shape of a star.

This group of nerves belongs to the 'Sympathetic Nervous System', which is part of our Autonomic Nervous System. Simply put, this is our body's 'fight or flight' system, that is, the system that prepares us to fight or run away in an emergency, when we are afraid or anxious. It is involved in many things that our body controls without us thinking about them, such as heart rate, blood pressure, and sweating. So most of the sympathetic nerve messages going to the head, neck, arms, and upper chest are sent through this stellate ganglion.

Does everyone have this Stellate Ganglion?

This is also a bit surprising. Actually, this stellate ganglion is not located in everyone's body. In order for this ganglion to form, two nerve clusters in our neck, namely the `inferior cervical ganglion` and the `first thoracic ganglion`, need to fuse together.

But, only 80% of the people in the worldThese two nerve bundles come together in this way to form the stellate ganglion. In the other 20% of cases, these are arranged differently, separated from each other.

Why is a Stellate Ganglion Block performed? For what diseases?

Doctors use this treatment for two main reasons.

1. For diagnosis: Find out if some pain is caused by the activity of the sympathetic nervous system mentioned earlier. This is called `sympathetically mediated pain (SMP)`.

2. As a treatment: Control various pain conditions, nerve disorders, and circulatory problems.

The table below lists some of the conditions in which this treatment is most commonly used.

In addition, this treatment is also used for conditions such as `Scleroderma`, `Orofacial pain`, `Atypical chest pain`, and `Ménière's disease`.

Is this also used for mental health issues?

Yes, this is a topic that many people are talking about right now. Research has been going on since the 1990s, especially on the use of SGB as a treatment for a mental condition called Post-Traumatic Stress Disorder (PTSD) .

But the results of these studies are mixed. Some people have seen significant reductions in PTSD symptoms, while others have seen no change. Therefore, agencies like the U.S. Food and Drug Administration have not officially approved SGB as a treatment for PTSD. However, if other treatments (counseling, medication) have not worked, a doctor may discuss this with the patient and offer it as an 'off-label' treatment.

Recently, research has begun on the effects of SGB on other mental conditions, such as depression and anxiety.

How is this Stellate Ganglion Block done?

Imagine that a doctor prescribed this treatment for you. Then, in the clinic or hospital, something like this happens:

1. Preparation: First, you will be asked to lie face up on a bed. For your comfort and relaxation, you may be given a mild sedative (a sedative) through an intravenous (IV) line.

2. Cleaning: The doctor will thoroughly clean the area in your neck where the injection will be given with an antiseptic solution.

3. First injection (numb):Next, a small amount of local anesthetic is injected into the area using a very fine needle. This will help you not feel the pain of the next injection.

4. Main injection: The main anesthetic is then injected. But this is not just a guess. The doctor uses an `Ultrasound` scan or a special type of X-ray called `Fluoroscopy` , watches the path of the needle on a screen, and only then does the injection occur when the needle is exactly near the nerve cluster called the stellate ganglion. This reduces the chance of injecting it in the wrong place.

This entire process usually takes less than 30 minutes .

What happens after the injection?

After the injection, you will be kept in a recovery room for a while. Usually for about 40 to 60 minutes, a nurse or doctor will monitor your condition (blood pressure, heart rate). Once everything is confirmed, you will be given instructions to follow at home and then allowed to go home.

How effective is this treatment? How long does it last?

There is no single answer to this question because it varies greatly from person to person.

• For some people, the pain goes away immediately after the injection, but the pain may return after a few hours as the anesthetic wears off.
• Others experience pain relief for days or weeks. During this time, they are able to taper off their pain medication and participate in activities such as physiotherapy exercises.

Usually, a single injection rarely provides complete relief. For long-term relief, a series of injections is needed, meaning you have to do this several times. Sometimes you can get results in just two sessions, while others may need to do it more than ten times. But the good news is that with each session, the duration of pain relief can increase .

Are there any side effects or risks to this?

As with any medical treatment, there are minor side effects and very rare serious complications.

The above-mentioned symptoms usually resolve completely within a few hours, but there are also serious complications that can occur very rarely .

• Infectious conditions
• Bleeding due to needle puncture into a blood vessel (e.g. carotid artery)
• Damage to other nerves (vagus nerve, recurrent laryngeal nerve)
• Lung damage (Pneumothorax)
• Damage to the thyroid gland, esophagus, or trachea

The chances of these things happening are very low, especially when an experienced doctor performs this treatment using technology like ultrasound.

In what situations should I call the doctor?

After you go home after the injection, if you develop any new symptoms or suspect any complications , call your doctor immediately. Especially:

• If the injection site becomes swollen, red, or feverish (signs of infection).
• If the difficulty swallowing continues after several hours.
• If you have difficulty breathing.

Don't be afraid or skeptical about this treatment. Talk to your doctor about it openly. The most important thing is to listen to all your concerns and make an informed decision.