Let's learn exactly about Glossopharyngeal Neuralgia (GPN)?

Have you ever had a sudden, severe pain in your tongue, throat, tonsils, or ear? It's like an electric shock, lasting a few seconds or minutes, but it happens several times a day. If this pain occurs when you talk, eat, or laugh, you may be interested in learning about this condition. We call this condition glossopharyngeal neuralgia, or GPN for short.

What is glossopharyngeal neuralgia (GPN)?

Simply put, Glossopharyngeal Neuralgia (GPN) is a rare condition that causes sudden, severe pain in your tongue, throat, tonsils, and ears. It is caused by irritation, pressure, or damage to the glossopharyngeal nerve .

Did you know that there are 12 main types of nerves in our head? We call these cranial nerves . The ninth (9th) of these twelve cranial nerves is the glossopharyngeal nerve. There are two of these nerves on each side of your head, that is, on the right side and on the left side. But in most cases, GPN affects only one nerve on one side of the head.

This pain can occur when you eat, talk, laugh, or even do normal things that you don't really think about. Imagine how annoying it would be if you had a sore throat when you cough or sneeze? It can ruin your whole day. But don't worry , there are treatments that can help control these symptoms.

What does GPN pain feel like? Where is it felt?

The main symptom of GPN is pain. This pain can be felt in different ways:

• A sharp pain , like being stabbed with a knife .
• A sudden pain , like being struck by lightning .
• A pain that feels like a burning sensation coming from within.
• Some people may just feel numb .

This pain is usually very severe. It lasts from a few seconds to a couple of minutes. However, it is not constant. It comes and goes. This pain can occur several times a day. Sometimes it can wake you up in the middle of the night because of the pain. This pain can last for weeks or even months. For many people, this pain goes away for a while and then comes back weeks, months, or even years later.

The main areas where GPN pain is felt are:

• The back of your nose, mouth, and throat ( pharynx and nasopharynx ), especially around the tonsils.
• Around the vocal cords in your throat ( larynx ).
• The areas around and under the chin and ears.
• The back of the tongue.

This is because the glossopharyngeal nerve is connected to many parts of your head, neck, and face, which is why you feel pain in multiple places. Most of the time, this pain is felt on only one side of your head.

Sometimes, pain can start in one place and spread to another. For example, pain that starts in the throat can spread to the shoulder or even the back.

Are there types of GPN?

Yes, there are two main types of GPN depending on the cause:

1. Primary glossopharyngeal neuralgia: No clear cause can be found for this. Your doctor may also call it idiopathic glossopharyngeal neuralgia , which means "no known cause."

2. Secondary glossopharyngeal neuralgia: In this case, GPN occurs due to another medical condition or cause.

Why does this GPN occur? What are the reasons?

The main cause of GPN is some kind of pressure, compression, or damage to the glossopharyngeal nerve . There are several common causes that contribute to this:

• Nerve compression by a blood vessel: Sometimes this pain can be caused by a blood vessel that runs near the nerve pressing on the nerve.
• Presence of a tumor, growth, or lesion: A tumor or other growth in the brain, either on or near the nerve, may also be a cause.
• Infection: An infection in the throat or surrounding area can also affect the nerve.

Sometimes, doctors can't figure out exactly what's happening to this nerve. Also, GPN symptoms can be caused by other underlying medical conditions. For example:

• Autoimmune diseases or inflammatory diseases , for example Sjögren's syndrome .
• Some damage ( lesion ) to the brainstem .
• Demyelinating conditions that damage the myelin sheath of the central nervous system , for example , multiple sclerosis .
• Eagle syndrome .
• A physical accident or injury .
• Some growth abnormalities present at birth.
• Nerve tumors such as Schwannomas .
• Tongue carcinoma .

What things make this pain worse? (Triggers)

Some daily activities can cause GPN pain to suddenly appear. We call these "triggers". Imagine, what if you were chatting happily with friends and suddenly laughed and felt a sharp pain in your throat and mouth? Or, what if you just put a delicious home-cooked meal in your mouth and the pain became unbearable when you swallowed? Even small things like these can trigger GPN pain.

Things that often trigger pain are:

• Chewing food
• Cough
• Drinking cold drinks
• Laughter
• Sneezing
• Swallowing
• Talking
• Touching the face or neck, especially the area around and under the ears
• Opening the door

Who is at higher risk of developing GPN?

GPN can develop at any age, but it is more common in people over the age of 50 .

What complications can occur due to GPN?

GPN is usually not a serious condition that causes serious complications. However, if the condition is severe, it can cause some problems. For example, pain when eating can lead to loss of appetite and weight loss.

In some very severe cases , this GPN pain can affect the nearby Vagus nerve . This vagus nerve is a nerve that controls vital, automatic processes such as our heartbeat, blood pressure, and breathing. So, if it is affected by GPN, the following conditions can occur:

• Heart rhythm irregularities (arrhythmias)
• Slow heart rate (bradycardia)
• Low blood pressure (hypotension)
• Fainting or loss of consciousness (syncope)
• Seizures

Very rarely, if the condition becomes severe, GPN can affect the heart, causing the heart rate to slow down significantly and even cardiac arrest. This is a very dangerous condition. Therefore, it is imperative to seek medical advice if you have symptoms.

How to identify GPN status?

To know for sure if you have GPN, you need to see a doctor. The doctor will examine you, ask about your symptoms, and may do some tests if necessary. This diagnosis can take some time, because they need to find out exactly what is causing your symptoms.

The tests usually performed are:

• Blood tests
• CT scan
• MRA scan - This checks the condition of the blood vessels.
• MRI scan (MRI)
• X-ray

Sometimes the doctor will use a cotton swab to gently touch the area where you are feeling pain. Then, they will apply a local anesthetic to the area and touch it again. If the pain goes away after the anesthetic is applied, it is a sign that you may have GPN.

What are the treatments for GPN?

The good news is that there are treatments for GPN. Your doctor will choose the treatment that is best for you.

There are several main treatment methods:

• Taking medications: These medications work by reducing the activity of nerve cells and reducing pain.
• Anticonvulsant medications such as carbamazepine, gabapentin, oxcarbazepine, or phenytoin are often given first.
• Medications such as baclofen and tricyclic antidepressants may also help.
• Applying a local anesthetic: You can apply a local anesthetic, such as lidocaine, to the back of your throat. This can temporarily relieve pain.
• Nerve blocks: This involves injecting a drug near the nerve that is causing the pain. This stops the nerve from sending pain signals.
• Surgery: In some severe cases, surgery may be necessary.
• Microvascular decompression: This is a surgery to relieve pressure on the nerve, that is, to stop it from getting compressed.
• Rhizotomy: This involves cutting the nerve fibers that carry pain signals.

Your doctor will talk to you, find out what's causing your pain, and decide on the best treatment for you. They will also educate you about possible side effects of treatment.

Can GPN be prevented?

In fact, there is no specific way to prevent GPN. Because it often comes about unexpectedly, and sometimes without any apparent cause, there is nothing you can do to reduce the risk of this condition.

Can GPN be cured? How long will it last?

Yes, GPN can go away on its own. And, with treatment, it is much more likely to go away. Treatments are often successful. If surgery is needed, it can provide temporary or long-term pain relief.

GPN is usually a temporary problem. It lasts for a few weeks or months. Most people have it only once in their lives. However, some people may have GPN symptoms for weeks or months, then go into remission, and then have symptoms again. This can happen intermittently for years.

How is life with GPN?

GPN usually does not affect your lifespan. The outlook for people with GPN is usually good. For most people, symptoms go away and do not come back.

However, if symptoms are severe, especially if there is pain on both sides of the head, if there is continuous pain, and if there is unbearable pain, the outlook may be somewhat less. If there are symptoms such as fainting, changes in heart rate, the likelihood of adverse outcomes is higher.

When should you seek medical advice?

If you suspect you may have GPN because you're experiencing pain in your face, mouth, or neck, be sure to see a doctor. Although GPN is a rare condition, the nerves involved are in a very important part of your head and neck. Knowing what's causing it and getting treatment can help prevent future, potentially dangerous, problems.

If you have GPN, your doctor will schedule regular follow-up visits. Your doctor will monitor your symptoms, any changes, and the success of your treatment.

Also, tell your doctor immediately if you notice these things:

• If you feel like the medicine you are taking is not working as well as it used to.
• If symptoms get worse.
• If new symptoms appear.

When should you seek emergency treatment?

GPN is not usually an emergency, unless the symptoms are severe. If you have pain similar to GPN and any of the following symptoms, you should seek emergency medical attention immediately:

• Fainting or loss of consciousness that occurs with a specific activity, such as opening the mouth or speaking.
• Sudden loss of consciousness for no reason.
• Changes in heart rate, especially an irregular heartbeat or a feeling of your heart beating too fast ( palpitations ).

What other conditions show symptoms similar to GPN?

There are several other medical conditions that present with similar symptoms to GPN. That is, these conditions can be confused with GPN. They are:

• Trigeminal neuralgia
• Jacobson's neuralgia
• Temporomandibular joint dysfunction disorders (TMJ)
• Other types of atypical facial pain

Summary and things to remember

When you have GPN, it can be hard to be yourself. How annoying is it when you have severe pain when you are talking happily with friends or family, laughing? You may be afraid to go to a new restaurant because you think it will hurt when you swallow. These are the things that bring joy to life, but pain can change all that. But, you don't have to live with this pain.

GPN is a very treatable condition. It usually responds well to medication. There are also other treatments available to suit your needs. The sooner you get a diagnosis and treatment, the sooner you can get back to doing the things you love without having to worry about pain.

Therefore, if you have any of these symptoms, please seek medical advice. Your health is the most important thing.

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