Amniotic fluid embolism (AFE) is a rare and unexpected birth complication that may occur when a mother suffers an allergic-like response to amniotic fluid that may enter her bloodstream during labor or shortly after delivery. The response can be life threatening to both mother and to her baby(ies) if she develops this before delivery. It can cause maternal respiratory and cardiac complications as well as blood clotting problems that can lead to uncontrolled bleeding. AFE is estimated to affect 1 in every 40,000 deliveries.

Although rare, clinicians should be prepared for this obstetric emergency and be aware of the clinical presentation and proficient in their understanding of the pathophysiology, treatment, and diagnosis of amniotic fluid embolism.

AFE is difficult to diagnose. If the doctor suspects AFE, immediate action and treatment must be taken to address the potentially life threatening complications.

Amniotic fluid embolism might develop suddenly and rapidly. Early signs and symptoms might include:

• Increased anxiety
• Agitation
• Impending sense of doom
• Confusion
• Nausea or vomiting
• Chills
• Skin discoloration
• Shortness of breath
• Fetal distress
• Abnormal vital signs

Which can lead to more serious and acute symptoms:

• Loss of consciousness
• Seizure and/or cardiopulmonary arrest
• Bleeding from the uterus, cesarean incision or intravenous (IV) sites (disseminated intravascular coagulopathy)