Prenatally diagnosed congenital heart disease: the cost of maternal care

OBJECTIVE: Little is known regarding the effects of a prenatal diagnosis of congenital heart disease (CHD) on the cost of antenatal and delivery care. We sought to compare the maternal costs of care in pregnancies where the fetus or child was diagnosed prenatally vs. postnatally. METHODS: Costs of maternal care were determined for pregnancies in which the fetus or child was diagnosed with CHD between 1997 and 2012 in the state of Utah. Cases of CHD were identified via a statewide birth defect surveillance program which included data on the timing of diagnosis, maternal demographic and clinical data, and linked to statewide inpatient maternal hospital discharge records. Antenatal testing costs were determined using Medicaid fee estimates and total facility costs were determined for all hospitalizations including delivery. The association of timing of diagnosis of CHD with costs was analyzed using univariable and multivariable models. After controlling for significant differences between the groups, including lesion severity, the prenatal diagnosis remained directly associated with antenatal testing costs (+$1472), maternal hospitalization costs (+$2713), and maternal hospital length of stay (+1.0 d). CONCLUSION: A prenatal diagnosis of fetal CHD was associated with increased prenatal costs, hospitalization costs, and hospital length of stay for affected pregnant patients.