Outcome of congenital heart defects--a population-based study

Area of Science:

• Pediatric Cardiology
• Developmental Biology
• Public Health

Background:

• Congenital heart defects (CHDs) represent a significant burden in pediatric populations.
• Understanding the natural history and outcomes of CHDs is crucial for clinical management and public health strategies.

Purpose of the Study:

• To investigate the long-term outcomes of infants diagnosed with congenital heart defects (CHDs).
• To assess spontaneous cure rates, mortality, and the impact of therapeutic interventions in a large cohort of infants with CHDs.

Main Methods:

• A population-based study analyzing data from 35,218 live births between 1982 and 1996.
• Follow-up assessments were conducted 3-18 years after birth to evaluate outcomes including spontaneous cure, mortality, therapeutic procedures, and residual defects.

Main Results:

• Of 360 infants with CHDs, 42.8% experienced spontaneous cures, predominantly ventricular septal defects (VSDs).
• Neonatal mortality was 11.7%, with 52.4% of deaths occurring in the first 28 days.
• Therapeutic procedures were performed on 33.1% of patients, with a 20.2% mortality rate among them. 43.2% of survivors had residual defects.

Conclusions:

• Congenital heart defects (CHDs) exhibit a wide spectrum of severity, characterized by significant neonatal mortality and a notable rate of spontaneous resolution.
• An estimated 25% of infants born with CHDs will reach adulthood with persistent or residual cardiac issues, necessitating ongoing management.