Older, Black, and low-income pregnant patients more likely to suffer cardiac arrest when hospitalized for delivery

March 14, 2023
Survival lowest among women with co-occurring disseminated intravascular coagulation.

A study of pregnant women hospitalized during delivery found that cardiac arrest occurred in about 1 in 9,000 deliveries, a rate that is higher than previously reported estimates. Cardiac arrest was more common among patients who were older, were non-Hispanic Black, had Medicare or Medicaid, or had underlying medical conditions. The findings are published in Annals of Internal Medicine.  

Researchers from the Centers for Disease Control and Prevention (CDC) studied data from the Healthcare Cost and Utilization Project (HCUP) National Inpatient Sample (NIS) from 2017 to 2019 to investigate rate of cardiac arrest during delivery hospitalization. The authors also looked at the patient characteristics associated with cardiac arrest and survival rates. Among the 10,921,784 U.S. delivery hospitalizations included in the data, the cardiac arrest rate was 13.4 per 100,000 and about a third of those patients survived to hospital discharge. Survival was lowest with co-occurring disseminated intravascular coagulation (DIC). The researchers could not determine cause of cardiac arrest or identify whether co-occurring severe maternal complications came before or after cardiac arrest. Acute respiratory distress syndrome was the most common co-occurring diagnosis, and cardiac arrest rates were high among hospitalizations where a diagnosis of amniotic fluid embolism was noted.

ACP release on Newswise