Objective: To determine whether obstetric admissions to the intensive care
unit (ICU) are useful quality-assurance indicators.
Methods: We analyzed retrospectively obstetric ICU admissions at two tertia
ry care centers from 1991 to 1997.
Results: The 131 obstetric admissions represented 0.3% of all deliveries. T
he majority (78%) of women were admitted to the ICU postpartum. Obstetric h
emorrhage (26%) and hypertension (21%) were the two most common reasons for
admission. Together with cardiac disease, respiratory disorders, and infec
tion, they accounted for more than 80% of all admissions. Preexisting medic
al conditions were present in 38% of all admissions. The median Acute Physi
ology and Chronic Health Evaluation II score was 8.5. The predicted mortali
ty rate for the group was 10.0%, and the actual mortality rate was 2.3%.
Conclusion: The most common precipitants of ICU admission were obstetric he
morrhage and uncontrolled hypertension. Improved management strategies for
these problems may significantly reduce major maternal morbidity. (C) 1999
by The American College of obstetricians and Gynecologists.