Implementation of Rapid Genome Sequencing for Critically Ill Infants With Complex Congenital Heart Disease

Thomas Hays1, Rebecca Hernan2, Michele Disco2

  • 1Division of Neonatology, Department of Pediatrics (T.H., N.G., D.V., G.K.), Columbia University Irving Medical Center, New York, NY.

Insights

Rapid genome sequencing (rGS) diagnosed genetic disorders in 27% of infants with complex congenital heart disease (CHD). This led to significant clinical management changes in 62% of cases, improving infant care.

Area of Science:

  • Genomics
  • Pediatric Cardiology
  • Neonatology

Background:

  • Congenital heart disease (CHD) is a primary cause of infant mortality.
  • Genetic disorders frequently underlie complex CHD.
  • The prospective utility of rapid genome sequencing (rGS) in infants with CHD remains understudied.

Purpose of the Study:

  • To prospectively evaluate the impact of rGS on the clinical management of infants with complex CHD.
  • To assess the diagnostic yield and clinical utility of rGS in this specific pediatric population.

Main Methods:

  • A prospective evaluation of 48 infants with complex CHD in a cardiac neonatal intensive care unit.
  • Utilized rapid genome sequencing (rGS) for genetic diagnosis.
  • Coordinated care involved neonatologists, cardiologists, surgeons, geneticists, and genetic counselors.

Main Results:

  • rGS identified genetic disorders in 13 out of 48 infants (27%).
  • Clinical management was altered in 8 cases (62%) based on diagnostic results.
  • Diagnoses averted unnecessary interventions and facilitated early treatment for conditions like eye disease.

Conclusions:

  • This is the first prospective study on rGS for infants with complex CHD.
  • rGS is a valuable tool for diagnosing genetic disorders in infants with CHD, leading to significant management changes.
  • Further research is needed to broaden the implementation of rGS for a larger CHD infant population.
Abstract