OBJECTIVE: Our purpose was to determine the cause and describe the nat
ural history of acute pancreatitis complicating pregnancy and its effe
ct on maternal and perinatal outcomes. STUDY DESIGN: Over the last dec
ade we admitted 43 pregnant women with acute pancreatitis to our hospi
tal. We reviewed presentation, diagnosis, management, and maternal and
perinatal outcomes. RESULTS: The incidence of acute pancreatitis was
one in 3333 pregnancies. The mean age of these 43 women was 24 years,
31 (72%) were multiparous, and pancreatitis was associated with biliar
y disease in 29 (68%). All had a favorable response to supportive ther
apy that included bowel rest, intravenous hydration, and antimicrobial
therapy. Cholecystectomy was performed for persistent or recurrent bi
liary or pancreatic disease ante partum in eight women and post partum
in another 12. Of 39 women who were delivered at our hospital, 32 wer
e at term and their infants did well. The other six infants were deliv
ered preterm; two were stillborn and another died after birth. One wom
an underwent a therapeutic abortion. CONCLUSIONS: Most pregnant women
with acute pancreatitis have associated biliary tract disease. With pr
ompt hospitalization, supportive care, and surgical intervention when
indicated, maternal and fetal morbidity and mortality are not prohibit
ive. Fetal death and preterm delivery may result from severe disease.