[Pulse oximetry screening of newborns can prevent circulatory collapse caused by congenital heart defect]

Area of Science:

• Pediatric Cardiology
• Congenital Heart Disease
• Neonatal Screening

Background:

• Total anomalous pulmonary venous drainage (TAPVD) is a critical congenital heart defect where pulmonary veins do not connect normally to the left atrium.
• Early diagnosis of critical congenital heart defects (CCHDs) is crucial for timely intervention and improved patient outcomes.
• Current prenatal ultrasound screening methods fail to detect all infants with CCHDs.

Observation:

• An eight-week-old infant with TAPVD initially showed minimal symptoms despite low oxygen saturation.
• The infant experienced a sudden collapse requiring emergency surgery and intensive care.
• This severe outcome and complicated recovery highlight the limitations of delayed diagnosis.

Findings:

• The case demonstrates that infants with TAPVD may present with subtle initial symptoms, masking underlying severity.
• Delayed diagnosis led to a critical event (collapse) and a challenging post-operative course.
• Earlier detection could have potentially averted the acute crisis and prolonged recovery.

Implications:

• Pulse oximetry screening is a potential tool for detecting CCHDs, including TAPVD, in newborns.
• Implementing routine pulse oximetry screening, as practiced in Nordic countries, could significantly reduce undiagnosed critical heart conditions.
• Wider adoption of pulse oximetry screening may improve infant survival rates and reduce healthcare burdens associated with emergency interventions for CCHDs.