Obstetric Transport and Factors Associated With Transport to the Intensive Care Unit

Obstetric transport to higher levels of maternal care for critically ill pregnant individuals is recommended to reduce maternal and neonatal morbidity, yet data on these transports are lacking. We aimed to describe the characteristics of obstetric transports of 1 integrated health system's perinatal transport service from January 2020 to December 2023, with a specific focus on assessing factors associated with transport directly to an intensive care unit (ICU) rather than an emergency room or labor and delivery unit. During the study period, 1,087 obstetric transports occurred, most frequently for preterm labor (28.8%), preeclampsia (28.7%), and preterm prelabor rupture of membranes (18.7%). Transport most often occurred via rotor wing (48.0%). Transport to the ICU occurred in 3.2% of cases. Transport to the ICU was associated with longer physician consultation time (17.0 minutes [interquartile range 9.75-31.0] vs. 11.0 minutes [7.0-18.0], P = .006), shorter flight team dispatch time (13 minutes [8.0-33.0] vs. 20.0 minutes [13.5-29.0], P = .03), longer stabilization time before departure (19.0 minutes [15.0-33.0] vs. 15.0 minutes [12.0-20.0], P < .001), and longer time to load the patient to the aircraft (10.0 minutes [7.0-14.0] vs. 7.0 minutes [5.0-10.0], P = .002). Factors associated with transport to the ICU included a diagnosis of coronavirus disease 2019 (adjusted odds ratio [aOR], 11.85, 95% confidence interval [CI] 3.14-36.79), being postpartum (aOR 54.93, 95% CI 21.52-144.81), and further distance traveled (aOR 1.01 per mile traveled, 95% CI 1.00-1.01). Obstetric transports to the ICU are uncommon but require specialized patient care.