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Children with genetic disorders undergoing open-heart surgery: are they at increased risk for postoperative
Carsten Doell1, Vera Bernet, Luciano Molinari
1Pediatric Intensive Care and Neonatology, University Children's Hospital, Zurich, Switzerland.
Insights
Infants with congenital heart disease and genetic disorders face similar mortality rates but increased risks for renal issues and reintubation. Trisomy 21 specifically elevates risks for chylothorax and sepsis post-surgery.
Area of Science:
- Pediatric Cardiology
- Clinical Genetics
- Critical Care Medicine
Background:
- Congenital heart disease (CHD) combined with genetic disorders may increase postoperative risks.
- Understanding these risks is crucial for managing pediatric patients undergoing cardiac surgery.
Purpose of the Study:
- To compare postcardiopulmonary bypass outcomes in infants with CHD and genetic disorders versus those with CHD alone.
- Identify specific risks associated with genetic conditions in this population.
Main Methods:
- Prospective cohort study involving 211 infants (<1 year) undergoing bypass surgery for CHD.
- Comparison of perioperative courses between infants with and without genetic disorders.
- Univariate and regression analyses to control for confounding factors.
Main Results:
- No significant difference in mortality was observed between groups.
- Genetic disorders independently predicted renal insufficiency and reintubation.
- Trisomy 21 was linked to higher rates of chylothorax and sepsis.
- Longer hospital stays were noted for infants with genetic disorders other than trisomy 21.
Conclusions:
- Infants with CHD and genetic disorders do not have increased mortality risk post-surgery.
- Genetic conditions are risk factors for renal insufficiency and reintubation.
- Trisomy 21 presents unique risks for chylothorax and sepsis, requiring tailored management strategies.
Objectives:
Children with congenital heart disease and genetic disorders may be at increased risk for postoperative mortality and morbidity compared with children with congenital heart disease alone. The aim of the present study was to determine differences in postcardiopulmonary bypass outcome between these two groups.
Design:
Prospective cohort study.
Setting:
Tertiary university children's hospital.
Patients:
We enrolled 211 infants (<1 yr) who underwent bypass surgery for congenital heart disease. Data on perioperative course were compared between infants with and without genetic disorders. Univariate analysis was followed by regression analysis to control for confounders.
Interventions:
None.
Measurements And Main Results:
We enrolled 148 infants without and 63 infants with a genetic disorder. The majority of infants with genetic disorders had trisomy 21 (n = 32), six had microdeletion 22q11, and 25 had other genetic disorders. There was no significant difference in mortality between infants with and without genetic disorders. An underlying genetic disorder was an independent risk factor for renal insufficiency (p = .003) and reintubation (p = .02). Trisomy 21 was an independent risk factor for chylothorax (p = .01) and sepsis (p = .05). The length of hospital stay was longer in infants with genetic disorders other than trisomy 21 compared with infants with trisomy 21 (p = .009).
Conclusions:
Infants with congenital heart disease and genetic disorders are not at increased risk for postoperative mortality. However, a genetic disorder is a risk factor for reintubation and renal insufficiency, whereas infants with trisomy 21 have a higher risk of chylothorax and sepsis. Intensive care providers need to be aware of these differences in morbidity to improve management decisions and parental counseling.
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