Have you ever heard the word "fistula"? You may have heard it from your doctor or a family member. It can be a bit scary to hear, but don't worry. Today, we'll talk about what a fistula is, why it forms, and what treatments are available for it in a simple, understandable way.
What is a fistula? Let's understand it simply.
Simply put, a fistula is a new connection between two parts of our body that are not normally connected to each other. It's like a small tunnel. Think of it like a small tunnel between two organs inside your body, or between two blood vessels, or a tube that comes from inside your body to the surface of your skin. Through this tunnel, things like pus, feces, and blood can go to places in your body that they shouldn't.
Most of the time, this fistula is something unusual, that is, a disease. So, it requires medical treatment. However, sometimes doctors themselves create fistulas as a treatment. For example, they create a connection between an artery and a vein to help with dialysis treatment for kidney patients.
Fistulas can cause you pain and make it difficult to do everyday activities. But the good news is that they can often be treated, especially with surgery. For some people, once they get a fistula, they don't come back. For others, they keep coming back, and they may need treatment for months or even years. However, your healthcare team will provide you with the treatment and support you need.
How can a fistula develop? What are the types?
There are several types of fistulas. They are classified according to where they form. Let's look at the main types of fistulas that are seen:
Anal fistula
This is the most common type of fistula. This is a small tube that forms from inside your anus to the skin around it. This is often caused by an infection (`(Infection)`) or inflammation (`(Inflammation)`) of the glands around your anus, which can cause a abscess (`(Parianal abscess)`). As you may know, people with certain medical conditions, such as `(Crohn's disease)`, are at a higher risk of developing this type of infection and fistula. This can cause pain when sitting or having a bowel movement, and pus can come out.
Arteriovenous (AV) fistula
There are two types of blood vessels in our body, called arteries and veins. Normally, these two travel separately. But in an `(AV) fistula`, a direct connection is formed between an artery and a vein. The main reason for this is injury. But not all `(AV) fistula` are bad. As mentioned earlier, doctors create this type of connection to help people who have kidney failure and are on `(Dialysis)`.
Connections between the aorta and the small intestine (Aortoenteric fistula)
This is a very dangerous and potentially life-threatening type of fistula. In this, a connection is formed between the aorta, the main blood vessel in our body, and the small intestine. This can cause excessive bleeding from the gastrointestinal tract (GI bleeding), which can even be fatal if emergency surgery is not performed quickly. There are two types of these, primary and secondary. Primary ones can occur due to a weakening of the wall of the aorta (Aortic aneurysm), cancer, tuberculosis, or infections such as syphilis. Secondary ones can occur as a very rare side effect of surgery involving the aorta.
Fistula that occurs inside the ear (perilymphatic fistula)
This occurs when a hole or tear develops in the thin membrane that separates our middle ear from our inner ear. This allows fluid from the inner ear to leak into the middle ear. This can cause changes in pressure in the ear, which can affect hearing and balance. Most people need surgery to correct this, but some people recover with bed rest.
Tracheoesophageal fistula (TEF)
This is a connection between our windpipe (trachea) and our esophagus (oesophagus). Most of the time, this is a congenital condition, meaning it can be present at birth. Doctors usually diagnose and treat it when babies are still babies. However, some adults can also develop this condition due to other medical conditions, such as cancer.
Vaginal fistula
This is when a hole forms in the wall of a woman's vagina. This hole can connect the vagina to an organ nearby, such as the uterus (`(Uterus)`), bladder (`(Bladder)`), rectum (`(Rectum)`), large intestine (`(Large intestine)`), or small intestine (`(Small intestine)`). Doctors call this a ``Vesicovaginal fistula`` if it is between the vagina and the bladder, and a ``Rectovaginal fistula`` if it is between the vagina and the rectum. A vaginal fistula that forms as a complication during childbirth is also called an ``Obstetric fistula``.
Important: Sometimes doctors create fistulas as a treatment. An example is a `(Mucous fistula)`. In this, the small or large intestine is connected to a small opening (`(Stoma)`) made in the skin of the abdomen. This is helpful for people who have had surgery to remove part of the large intestine (`(Colostomy)`) or for people who have had surgery to remove part of the small intestine (`(Ileostomy)`).
What is a fistula used for dialysis?
A dialysis fistula is actually an ``Arteriovenous - AV'' fistula. Because it connects an artery and a vein. But unlike other ``(AV) fistulas'', these are not caused by accidental injuries, but are created by surgeons to help with dialysis treatment.
A surgeon connects an artery and a vein in your arm. This causes more blood to flow through the vein than normal. The blood from the artery is flowing faster and at higher pressure. So when some of this blood is diverted into the vein, the vein gradually gets bigger, wider, and stronger. This is a good thing, because a strong, large vein can handle the needles used in dialysis and can quickly inject and remove blood.
If you need a dialysis fistula, your medical team will explain the pros and cons to you and will also teach you how to care for it at home.
What are the symptoms of a fistula?
The symptoms of a fistula vary depending on the type. Here are some of the symptoms you may experience with certain types of fistula:
- Anal fistula:
- Persistent pain and swelling around the anus.
- Pain when defecating.
- A discharge of pus or blood-like fluid from the skin around the anus, sometimes with a foul odor.
- Itching and redness of the skin around the anus.
- Fever.
- Vaginal fistula:
- Leakage of urine or stool from the vagina.
- A foul-smelling discharge from the vagina.
- Frequent vaginal or urinary tract infections.
- Pain during intercourse.
- Pain and itching of the skin around the vagina.
- Tracheoesophageal fistula (TEF):
- Coughing and shortness of breath when eating or drinking.
- Frequent chest infections (such as pneumonia).
- For a baby, it turns blue when breastfeeding.
- Fistula inside the ear (`Perilymphatic fistula`):
- Dizziness, a feeling of spinning.
- Losing balance while walking.
- Hearing loss.
- Hearing a ringing in the ears.
- Aortoenteric fistula:
- Sudden severe stomach pain.
- Vomiting blood.
- Black or bloody stools.
- Dizziness, fainting (due to bleeding).
- Fever.
If you have one or more of these symptoms, definitely see a doctor.
What are the causes of fistula formation?
The causes of fistula formation vary depending on the type. In general, fistula formation can be caused by the following:
- Inflammation and/or Infection: This is often the main cause.
- Trauma or injury to a part of the body: Other accidents can occur during surgery.
- As a side effect of surgery (`Complication of surgery`): Fistulas can rarely develop after some surgeries.
- As a side effect of treatment: For example, radiation therapy for cancer.
- Changes that occur during fetal development: This means that problems occur while the baby is still in the womb.
How does a doctor diagnose a fistula?
This is how doctors diagnose a fistula:
1. Talk to you about your symptoms: ask about what you are feeling and how long you have had these problems.
2. Physical exam: A physical examination will be performed to see if a fistula is visible, or certain areas of the body will be examined (with your consent).
3. More tests: Tests are done to find out exactly what is happening inside the body.
What tests are performed?
These tests can help doctors get a better understanding of what's going on inside your body. Even if you suspect you have a fistula based on the symptoms you're describing, some fistulas aren't visible. So tests that can take pictures of your internal organs can help find out about these things:
- What type of fistula do you have?
- Where exactly is it?
- What effect did it have on the surrounding tissues?
The tests you need to have will depend on the type of fistula you have. Your doctor will tell you about them. However, you may be asked to do the following tests:
- Blood or urine tests: Check for swelling or infection.
- X-rays, CT scans (computed tomography scans) or MRI (magnetic resonance imaging): Look at different parts of the body.
- Endoscopic ultrasound: Look inside the digestive system.
- Flexible sigmoidoscopy or colonoscopy: Look inside the large intestine.
- Cystoscopy: Look inside the bladder and urethra.
- Bronchoscopy or Endoscopy: Look inside the airways (endoscopy here means airways).
- Angiogram: To check for blockages in blood vessels.
What are the treatments for fistula?
The most common treatments for fistulas are medication and/or surgery. Your doctor will tell you which treatment is right for your situation.
For example, your doctor may prescribe medication to reduce swelling or to change the way your body's immune system works. These medications can treat the underlying cause of the fistula. If you have an active infection, you may be given antibiotics. If medications don't work, or if medications alone aren't enough, you may need surgery.
Let's learn about fistula surgery.
Fistula surgery is a procedure that repairs the abnormal connection between two parts of the body. This can help reduce your symptoms and prevent future problems. The details of the surgery will vary greatly depending on the type of fistula you have, its size, and its location. Some fistula surgeries are very simple, but others are complex. If you have a complex fistula, you may need to have several surgeries.
Remember, surgery for a rectal fistula is very different from surgery for an ear fistula. So your medical team will explain the surgery to you, the risks involved, and the recovery time.
What happens if you have a fistula? What to expect
Fistulas can often be easily treated, but you should see a doctor to begin treatment. Home remedies or waiting for symptoms to go away on their own will not help. If you feel or see anything unusual, see a doctor immediately.
Your doctor will tell you what to expect based on your situation. Sometimes, after treatment, the problem will be completely gone and you can forget about it. But sometimes the fistula or infection can come back. Then you may need more treatment or another surgery. This can be really stressful. But your doctor will help you every step of the way and explain why these things are being done.
Can fistula formation be prevented?
There is nothing we can do to prevent most fistulas from forming. They are caused by injuries or diseases that we cannot control.
However, doctors can sometimes prevent obstetric fistula, a complication of childbirth. This type of fistula can develop when the baby is born too late or if emergency medical care (such as a C-section) is not provided in time. In countries like Sri Lanka, such complications are rare because doctors take good care of the mother and baby during childbirth. However, these facilities are not the same everywhere in the world. Organizations like the World Health Organization (WHO) are trying to prevent obstetric fistula by improving medical facilities.
How do I take care of myself? Mental health is important too!
Living with a fistula can be challenging, especially if you have a complex fistula, have had multiple surgeries, or have persistent infections. It's understandable that your focus is on your body right now. But don't forget to think about your mental health, too.
There are many reasons why you might be feeling stressed or anxious. You may be thinking:
- Will the treatment be successful?
- Will the fistula recur?
- I feel differently about my body.
- How does this affect my personal relationships?
It's normal to feel these things, and your feelings are important. But don't carry this burden alone. Talk to your doctor about how you're feeling. He or she may be able to refer you to a service like counseling, or to support groups where other people with fistulas can meet. Other people who are going through the same thing as you will understand and can help you move forward.
What are the best times to see the doctor?
If you have symptoms of a fistula, or notice anything unusual, see a doctor immediately.
If you are already receiving treatment for a fistula, call your doctor at any time:
- If a new symptom appears, or if existing symptoms change.
- If you have questions about your treatment plan.
- If new symptoms appear after surgery, or if previous symptoms return.
Important questions to ask your doctor
When you go to see your doctor, it may be helpful to ask questions like these:
- What type of fistula do I have?
- What can I do to manage symptoms at home?
- What treatment options do I have?
- What are the risks of surgery?
- How long will it take to heal?
- What should I do and what should I not do during recovery?
- What is the chance of the fistula recurring?
- What can I do to prevent fistulas from forming in the future?
You may not have heard of fistula before, but you've probably been thinking about it since you found out you had one. Fistulas can disrupt your daily activities and affect your sense of self. Fortunately, treatment can help you regain control over the parts of your body that you feel you've lost control of. However, recovery can take time. Your doctor can tell you more about this and provide you with any additional support you may need.
Finally, things to remember (Take-Home Message)
- Fistula is not something to be afraid of, but it is a condition that requires immediate medical attention.
- If you have symptoms of a fistula, see a doctor immediately.
- Many types of fistula can be successfully treated, especially with surgery.
- The treatment process may take a while, but with patience and following your doctor's instructions, you can recover.
- Your mental health is just as important as your physical health. Don't hesitate to ask for help if you need it.
I hope you find this information useful. Stay healthy!
` fistula, anal fistula, AV fistula, vaginal fistula, fistula symptoms, fistula treatment, fistula surgery
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