Is your leg swollen and painful? This could be due to (May-Thurner Syndrome)!

Sometimes our legs swell and hurt for no reason, right? Especially the left leg. Many people don't pay much attention to this. But this may not always be a simple matter. Today we are going to talk about a condition that we have not heard of, but which we all know is worth a visit. That is `(May-Thurner Syndrome)`. This is also called `(Cockett syndrome)` or `(Iliac vein compression syndrome)`.

What exactly is ``May-Thurner Syndrome''?

Simply put, `(May-Thurner Syndrome)` is a condition where your right iliac artery (`Right Iliac Artery`) and your left iliac vein (`Left Iliac Vein`) are compressed. Now you may be wondering what these iliac arteries and veins are. The right iliac artery is the main blood vessel that carries blood to your right leg. The left iliac vein is the main blood vessel that carries blood from your left leg back to the heart. So, in this `(May-Thurner Syndrome)`, that compression can interfere with the blood flow through your legs.

What does this do to the body? How does it affect it?

Now you are probably wondering what this does to the body and how it affects it. The main thing is that due to this pressure, blood starts to collect in the legs, especially the left leg , instead of going straight up through the left iliac vein, that is, towards the heart. When this happens, blood clots can form in the deep veins . We medically call this `(Deep Vein Thrombosis)` or `(DVT)`. This is a condition that needs some attention. The symptoms of `(DVT)` can be like this:

• Changes in the color of the skin on the leg (maybe red, blue).
• The veins in the legs appear bulging and swollen.
• Leg pain, severe aches, or tenderness to touch.
• Leg swelling and a feeling of heaviness.

Some women may also develop pelvic congestion syndrome (PBS) along with May-Thurner syndrome. Doctors believe that this chronic pelvic pain is caused by problems with the veins in the pelvis (i.e., the lower abdomen).

How does this interfere with blood flow?

Blood is constantly moving through our body's blood vessels (arteries and veins). As you may recall, arteries carry clean, oxygenated blood from the heart to all the other parts of the body. After those parts have received oxygen and nutrients, veins carry deoxygenated, impure blood back to the heart and lungs.

In some places in our body, these arteries and veins cross each other. Similarly, inside our pelvis, the right iliac artery is located above the left iliac vein. Normally, this is not a problem. However, in someone with `(May-Thurner Syndrome)`, the right iliac artery puts pressure on the left iliac vein. Imagine there is a water pipe, what happens if someone steps on it? It is difficult for the water to flow, right? To be precise, that is what happens here too. Since the left iliac vein is compressed, it is difficult for the blood to flow freely through it.

Who is more likely to develop this condition?

This ``May-Thurner Syndrome'' seems to occur slightly more frequently in women . It is also somewhat common in adults between the ages of 20 and 50 .

How common is this condition?

In fact, iliac vein thrombosis is more common than you might think. Some studies suggest that as many as one in five people may have this type of thrombosis! But the surprising thing is, even though many people have iliac vein thrombosis, they are not specifically diagnosed with `(May-Thurner Syndrome)`. One reason for this may be that many people do not experience symptoms of `(May-Thurner Syndrome)` until they develop a condition like `(DVT)`.

What are the symptoms of `(May-Thurner Syndrome)`?

Many people with May-Thurner Syndrome do not experience any symptoms , especially if they do not have the DVT we discussed earlier. If symptoms do occur, they usually only affect the left leg . These may include:

• The feeling of heaviness in the legs. Like a stone hanging from it, very uncomfortable.
• Sometimes, non-healing wounds (ulcers) can occur on the legs.
• You may experience pain in your leg or a cramp coming from within.
• The skin color may change. It may become blue or brown.
• Leg swelling.
• Conditions such as varicose veins can arise.

What causes `(May-Thurner Syndrome)`?

The main reason for this is that the right iliac artery pushes on the left iliac vein. But doctors still haven't been able to find an exact reason why this happens. That is, it could simply be due to a change in the body's structure.

How do doctors diagnose this? (Diagnosis)

If you have these symptoms, the first thing you should do is see a doctor and talk clearly about your symptoms and your health history. The doctor will examine you. Then, they may do some special tests that can look at these blood vessels.

• `CT (Computed Tomography) scan` : This uses X-rays and special computers to take cross-sectional images of blood vessels. This can then be used to see if there is any blockage.
• `MRI (Magnetic Resonance Imaging)` : This uses magnets, radio waves, and computers to produce detailed images of blood vessels.
• Ultrasound: This test uses sound waves to look at the flow of blood inside the body, especially in the blood vessels (Doppler Ultrasound).
• Venogram : In this, a special dye (contrast dye) is injected into a vein and the dye is observed under X-rays to see if there is a blockage in the blood flow.
• A ``catheter-based venogram'' may also be performed. This means that a small tube (catheter) is inserted into a vein and dye is injected through it.
• Intravascular Ultrasound (IVUS) : This is a slightly more advanced test. Here, a catheter is inserted into a blood vessel, and a small ultrasound device (probe) is passed through the catheter to take very clear, detailed pictures of the inside of the blood vessel. This can accurately measure the amount of pressure.

What are the treatments for this?

There are two main goals when treating `(May-Thurner Syndrome)`. One is to improve blood circulation . The other is to reduce the risk of developing `(DVT)`. Depending on your condition, your doctor may recommend the following treatments:

• Angioplasty and Stenting : This is the most common treatment. In this procedure, a catheter with a small balloon is inserted into the blocked left iliac vein. When it reaches the exact location of the blockage, the balloon is inflated. This opens the blocked vein. Then, a small mesh tube, called a stent , is placed in the opening to keep it from closing again, and the balloon is removed. This is like removing a blockage in a road and building a bridge to make it easier to cross.
• Bypass surgery : Sometimes, a new path is created by using a piece of tissue taken from another area or an artificial tube to bypass the blocked vein. This restores blood flow. This is a major operation.
• Right iliac artery shunting : Rarely, surgery may be performed to move the right iliac artery slightly to relieve pressure on the left iliac vein. Sometimes, a piece of tissue may be placed between the vein and the artery to relieve pressure.

What to do if you develop a `(DVT)`?

Now imagine that you have a ``DVT'' due to ``May-Thurner Syndrome''. In that case, in addition to the treatments mentioned above, the doctor will add some more treatments:

• Anticoagulants : These prevent blood from clotting, stop existing blood clots from getting bigger, and may even help to dissolve existing clots gradually.
• Clot-busting medications / Thrombolytics : These are powerful medications that are given directly to dissolve blood clots. These medications are often given through a catheter, directly into the blood clot.
• `Vena Cava Filter` : This is a small mesh-like device. The `Inferior Vena Cava` is the largest vein in our body. This is where blood from the legs and abdomen goes to the heart. When this filter is placed inside that vein, it prevents blood clots that form in the legs from getting out of the way and traveling to the lungs.

Is there a way to prevent this from happening?

To be honest, there is no surefire way to prevent May-Thurner Syndrome, as the exact cause is still unknown. But you can keep your overall blood circulation in good condition and reduce your risk of blood clots by doing the following:

• Don't sit in one place for too long. If you work in an office, get up and walk around for a bit, stretching your legs, at least once an hour.
• Drink plenty of water. It is best to drink at least 2-3 liters of water a day.
• Exercise regularly , especially aerobic exercise (such as walking, running, and cycling).
• If you have other medical conditions such as diabetes mellitus, hypertension, or peripheral artery disease (PAD), talk to your doctor and get them well controlled.
• If you smoke, definitely quit . Smoking is very bad for your blood vessels.
• If your doctor recommends it, wear special compression stockings. These help reduce blood pooling in your legs and help you move up.

What complications can this cause?

The main complication of `(May-Thurner Syndrome)` is the `(DVT)` that we talked about. However, there is something that can be even more dangerous . That is, if a blood clot that has formed in the leg breaks away from there, travels through the bloodstream and gets stuck in a vein in the lungs. We call that `(Pulmonary Embolism)` (a blood clot stuck in the lungs) .

Pulmonary Embolism is a life-threatening medical emergency. If you have any of these new or worsening symptoms , go to the nearest hospital emergency department immediately or call an ambulance:

* Coughing up blood with mucus.

* Heart palpitations (suddenly rapid or irregular heartbeat).

* Severe difficulty breathing, feeling like you are suffocating (Dyspnea).

* If you suddenly experience severe chest pain that worsens when you breathe.

What is the future for someone with `(May-Thurner Syndrome)`?

Many people live long, healthy lives with May-Thurner Syndrome without any problems. If you don't have symptoms, you may not even know you have the condition.

However, if you experience any of the symptoms of `(Deep Vein Thrombosis - DVT)` that we talked about (such as swelling, redness, pain, warmth in the leg), be sure to see a doctor . `(DVT)` can often be successfully controlled with medication and, if necessary, other treatments.

Questions to ask the doctor

If you have, or think you may have, May-Thurner Syndrome, it may be helpful to ask your doctor these questions:

• What are the symptoms of ``May-Thurner Syndrome'' that affect me?
• What is the most likely cause of my symptoms?
• What kind of tests should I do to find out exactly this?
• What are the symptoms of a `(DVT)`? What should I do if I get them?
• What are the symptoms of a `(Pulmonary Embolism)`? What should I do if I get them?
• What treatments do you recommend for ``May-Thurner Syndrome''? What are the pros and cons?
• What are the chances of symptoms reappearing after treatment?

Is `(May-Thurner Syndrome)` life-threatening?

`(May-Thurner Syndrome)` is not directly life-threatening. However, it can lead to a dangerous complication called `(Pulmonary Embolism)`. That is what is life-threatening. Therefore, it is very important to be aware of the symptoms of `(Pulmonary Embolism)` and seek medical advice immediately if you feel something like that.

How do you know if you have `(May-Thurner Syndrome)`?

In fact, you may not be able to tell for sure if you have `(May-Thurner Syndrome)` because many people don't even know they have it until they have symptoms of `(DVT)`.

The only way to know for sure is to have a doctor perform the imaging tests we talked about earlier (like CT, MRI, Venogram, IVUS) and confirm that the left iliac vein is draining from the right iliac artery.

Important things to remember (Take-Home Message)

Okay, so, here are the most important things you need to remember about the ``May-Thurner Syndrome'' that we've talked about at length:

• May-Thurner Syndrome is a condition in which your right iliac artery compresses your left iliac vein, obstructing the flow of blood from your left leg back to your heart.
• This increases the risk of developing a condition called ``Deep Vein Thrombosis - DVT'' (blood clots in the deep veins) .
• Most people do not experience any symptoms . If symptoms do occur, they are often things like pain in the left leg, swelling, heaviness, and changes in skin color.
• Treatment aims to reduce the pressure, restore blood flow, and reduce the risk of DVT. Angioplasty and stenting are the most common treatments.
• If you experience symptoms of a DVT (sudden swelling, pain, redness, warmth to the touch in your leg), see a doctor immediately.
• Symptoms of a ``Pulmonary Embolism'' (sudden shortness of breath, chest pain, coughing up blood, feeling faint) are a medical emergency. In that case, go to the hospital immediately without delay.

It is very important to be aware of this condition. Because, if recognized early, it will go a long way in preventing serious complications. Don't panic, but be aware of the symptoms mentioned above and don't hesitate to seek medical advice if necessary.

` May-Thurner Syndrome, Iliac Vein Thrombosis, DVT, Deep Vein Thrombosis, Leg Swelling, Leg Pain, Pulmonary Embolism, Blood Clots, Vein Disease