Delayed diagnosis of critical congenital cardiovascular malformations (CCVM) and pulse oximetry screening of newborns.

Objective: Congenital cardiovascular malformations (CCVMs) are relatively common with a prevalence of 5-10 per 1000 live births. Pulse oximetry screening is proposed to identify newborns with critical CCVMs which are missed by routine prenatal ultrasound and by pre-discharge physical examinations. The purpose of this study was to identify the number of infants with a delayed diagnosis of critical CCVMs potentially detectable by pre-discharge pulse oximetry screening.