A very dangerous condition that can occur during childbirth! - Let's talk about Amniotic Fluid Embolism

This is a very special time for you, a mother-to-be. As you wait for your baby to arrive, it's not without a little trepidation. Most of the time, everything goes well, but sometimes unexpected complications can arise. Today, we're going to talk about a rare but potentially life-threatening condition called "Amniotic Fluid Embolism" (AFE). It's important for you to be aware of this.

What exactly is amniotic fluid embolism (AFE)?

Simply put, amniotic fluid embolism (AFE) is a very rare and potentially life-threatening emergency. It occurs when the amniotic fluid in the mother’s body enters her bloodstream during pregnancy, during labor, or very soon after birth. Now you may be wondering what amniotic fluid is. This is the fluid that surrounds your baby inside the womb. It’s like a safe environment for your baby to float in. Although this fluid is mostly water, it also contains things like your baby’s cells and tissues. Sometimes, when this amniotic fluid mixes with the mother’s blood, some mothers’ bodies have a very severe allergic response to it. Doctors still don’t know exactly why this happens. Amniotic fluid embolism (AFE) can cause the mother's heart and lungs to fail. This can lead to complications such as cardiac arrest , where the heart suddenly stops. Mothers with AFE can also bleed uncontrollably from the uterus or from a C-section wound. AFE is a very sudden and unpredictable condition. Therefore, treating it is very challenging. It is also a medical emergency. In fact, it is normal for a small amount of amniotic fluid to enter the mother's bloodstream during childbirth. Most people do not have any allergic reactions to this. But why only some people have such a severe reaction is still a mystery. AFE is also known as "Anaphylactic Syndrome of Pregnancy".

How common is this condition?

AFE is actually a very rare condition. In the United States, it occurs in about one in 40,000 births. In Europe, it occurs in about one in 53,800 births. That means it is very rare. But there is another problem here. The symptoms of AFE are very similar to the symptoms of other complications that can occur during childbirth, for example, uterine rupture, placental abruption, or eclampsia. Therefore, it is a little difficult to identify the exact cause of this complication as AFE.

What are the risk factors for AFE?

Because AFE is so rare and difficult to research, it's hard to predict exactly what risk factors may contribute to it. However, based on current research, there are a few things that are thought to possibly contribute to the condition:

• Increasing maternal age: This risk may be slightly increased for mothers who become pregnant at an age over 35.
• Having twins or more: For mothers expecting more than one child, such as twins or triplets.
• Fetal distress: Things like changes in the baby's heart rate.
• Placental problems: For example, conditions like placental abruption.
• Having preeclampsia or eclampsia: These are complications related to high blood pressure during pregnancy.
• Polyhydramnios: This means an excessive amount of amniotic fluid in the uterus.
• Cervical tears.
• Labor induction: This is when labor is artificially induced to induce labor.
• Giving birth to a baby by cesarean section ( C-section delivery).
• Operative assisted deliveries: These are cases where the baby is delivered using forceps delivery or vacuum extraction.

Remember, not everyone with these risk factors will develop AFE. These are just things that can slightly increase the likelihood of developing the condition .

What are the symptoms of amniotic fluid embolism?

The symptoms of AFE appear very suddenly and rapidly.As mentioned earlier, it can be challenging to diagnose accurately because these symptoms are similar to those of other complications during pregnancy and childbirth. The following are possible symptoms:

• Difficulty breathing : Suddenly it becomes difficult to breathe, feeling like you are suffocating.
• Sudden drop in blood pressure : Blood pressure suddenly drops significantly.
• Pulmonary edema: Lung function is impaired, as if submerged in water.
• Abnormal heart rate: The heart rate suddenly changes, sometimes starting to beat very fast, or beating very slowly.
• Excessive bleeding from the uterus, cesarean section wound, or IV site: Bleeding that cannot be stopped.
• Fetal distress: The baby's heartbeat changes.
• Sudden restlessness, confusion, or intense anxiety: You suddenly start to feel very anxious, restless, unable to understand what is happening, and may feel very scared.
• Feeling cold and shivering (Chills).

If one or more of these symptoms appear suddenly, it may be an emergency.

What complications can occur due to AFE?

AFE is a very serious condition. It can cause severe complications for both mother and baby.

Possible complications for the mother:

• Heart and lung failure.
• Loss of consciousness.
• Seizures.
• Excessive bleeding.
• Blood clotting problems (Disseminated Intravascular Coagulation - DIC): This occurs when a problem with the blood clotting system causes blood to clot on one side and bleed excessively on the other side.
• Stroke.
• Cardiac arrest: This means the heart stops beating completely.
• Brain damage.
• Even death can happen. This is the saddest thing.

Possible risks to the baby in the womb:

The risk to the baby depends on when the amniotic fluid embolism occurs. If the mother develops these symptoms before the baby is born, she may need to have an emergency delivery . If AFE has already started, the baby is at risk of not getting enough oxygen. If there is not enough oxygen, it can damage the baby's nervous system or brain.

What causes amniotic fluid embolism?

The exact cause of AFE is not yet known. It is thought that it may be caused by an immune response in some mothers to the placenta breaking down during childbirth. However, it is not clear why it only happens to some people and not others.

Can AFE occur during a cesarean section (C-section)?

Yes, it is possible. Amniotic fluid embolism can occur during both normal delivery and a cesarean section (C-section).

How do doctors diagnose amniotic fluid embolism?

Amniotic fluid embolism can be difficult to diagnose. As mentioned earlier, the symptoms are similar to those of many other serious medical conditions. Therefore, when doctors suspect AFE, they first rule out other possible causes. Amniotic fluid embolism usually occurs during labor or within 30 minutes of delivery. If you have AFE, you need to get treatment right away to avoid life-threatening complications. Your doctor may suspect AFE if you have any of these symptoms:

• Sudden drop in blood pressure.
• Difficulty breathing.
• Irregular heartbeat or complete cardiac arrest.
• Excessive bleeding without reason.

Two stages of AFE detection

Doctors classify amniotic fluid embolism into two stages:

• Phase one: This stage is characterized by rapid respiratory failure (lack of oxygen and inability to breathe) and cardiac arrest. The highest number of deaths is reported during this stage.
• Phase two: This is the hemorrhagic phase. In this phase, there may be uncontrollable excessive bleeding, either from the caesarean section wound or from the uterus (where the placenta was attached).

Tests to be performed if you survive

Because AFE is a medical emergency, doctors don't have time to rely on imaging tests or blood tests to make a diagnosis. Instead, they can provide life-saving treatment quickly. However, if you survive an amniotic fluid embolism, your doctor may order tests like these:

• Electrocardiogram (EKG): Checks the heart's function and rhythm.
• Pulse oximeter: Check the oxygen level in the blood.
• Chest X-ray: To see if there is fluid around the heart.
• Echocardiogram: See how the heart is working.

How is amniotic fluid embolism treated?

Amniotic fluid embolism is an emergency. It needs to be treated very quickly.This is how you can protect both you and your baby. Here are some methods that doctors can use to do this:

• Delivering the baby immediately.
• Multiple blood, plasma and platelet transfusions.
• Hysterectomy to stop the bleeding (this is only done if no other way to stop the bleeding is available).
• Administering steroids or other medications to control blood pressure or heart function.
• Providing Cardiopulmonary Resuscitation (CPR).
• Oxygen is given either through a tracheal tube or through a machine (mechanical ventilation).
• Monitor blood pressure by inserting a pulmonary artery catheter or a central venous catheter.

All of this is done to save the lives of the mother and baby. Therefore, the medical team makes decisions based on the situation at that moment.

Is there a way we can prevent this?

Unfortunately, there is currently no way to prevent amniotic fluid embolism. Doctors still don't fully understand why AFE occurs or what causes it. However, one way to prepare for any medical emergency is to work with your family and doctors to develop a plan. Ask your doctor about emergencies and how your medical team will respond to them. This may be part of your "birth plan," a plan you made before your baby was born. But remember, your birth plan represents the best-case scenario. If an emergency occurs, your medical team will need to act accordingly to protect you and your baby.

What are the chances of surviving AFE?

Because AFE is difficult to diagnose and depends on many factors, it is difficult to give an exact percentage of how many people die from this condition. Although studies vary depending on how the data is collected, some reports suggest that the mortality rate can be as high as 60%. This shows how serious this condition is.

What are the possible long-term effects on survivors?

This depends on how severely you responded to the AFE, as well as your overall health history. Amniotic fluid embolism can cause both physical and psychological side effects. Some of the long-term effects that may occur include:

• Neurological damage that affects memory or the ability to recall words.
• Permanent damage to the heart.
• If a stroke occurs, the complications that may arise.
• Kidney problems.
• Anxiety, depression, and feelings of guilt.
• Post-Traumatic Stress Disorder (PTSD). Because this is a very traumatic experience, it can take a while to recover mentally.

Finally, things to remember (Take-Home Message)

Amniotic fluid embolism (AFE) is a life-threatening complication that can occur during and around childbirth. It is very rare, and it can happen suddenly and quickly. Because the condition is not fully understood, there is nothing you can do to prevent it. Medical researchers are still not sure why it only happens to some people.

If you are pregnant, the chances of you developing AFE are very low . So don't be unnecessarily alarmed. However, talk to your prenatal care provider about any concerns or questions you may have about this rare condition. They will be able to help you ease your fears.

If you are an AFE survivor, you may have long-term physical or mental health issues. Talk to your doctor, partner, or friends about this. They can give you the support you need to recover from this condition. Remember, you are not alone.