What condition is characterized by DIC and anaphylaxis occurring together during pregnancy?

Anaphylactoid syndrome of pregnancy, also known as amniotic fluid embolism, is a rare but serious condition that can occur during pregnancy and is characterized by the sudden onset of anaphylaxis-like symptoms and disseminated intravascular coagulation (DIC). This syndrome typically occurs when amniotic fluid enters the maternal circulation, triggering a profound inflammatory response, leading to cardiovascular collapse and coagulopathy.

The presence of DIC indicates that the body is experiencing a serious clotting and bleeding disorder, which can occur as part of the systemic reaction in this condition. Anaphylaxis, reflected by the sudden and severe allergic reaction, is also a hallmark of this syndrome, leading to respiratory distress, hypotension, and edema.

The other conditions listed do not typically present with this combination of symptoms or mechanisms. Gestational diabetes primarily affects glucose metabolism without direct association to DIC or anaphylaxis. Placenta previa involves abnormal placental positioning and is not characterized by these acute inflammatory or coagulation phenomena. Postpartum hemorrhage refers to excessive bleeding after childbirth and does not encompass the immediate reaction characteristic of anaphylactoid syndrome of pregnancy. Thus, the defining features of both DIC and anaphylaxis occurring together during pregnancy distinctly categorize this condition