Differences in mortality characteristics in neonates with Down's syndrome

Area of Science:

• Neonatology
• Genetics
• Pediatric Cardiology

Background:

• Neonates with Down syndrome (nDS) are susceptible to numerous medical issues.
• These conditions elevate the risk of mortality during the neonatal period.

Purpose of the Study:

• To investigate differences in baseline characteristics, medical complications, and procedures.
• To compare outcomes between nDS who survived and those who died during initial hospitalization.

Main Methods:

• Retrospective review of 5737 nDS patients from the Pediatric Health Information Systems (PHIS) database (2000-2014).
• Analysis included demographics, complications, procedures, and mortality.
• Multivariate logistic regression identified predictors of death (P<0.05).

Main Results:

• Overall mortality was 7.5%.
• Higher mortality was associated with lower birth weight, diaphragmatic hernia, and specific cardiac anomalies (pulmonary venous abnormality, Ebstein's anomaly, left-sided obstructive lesion).
• Increased odds of death linked to hydrops, necrotizing enterocolitis, mechanical ventilation, and ECMO.

Conclusions:

• Certain cardiac diagnoses and complications significantly increase mortality risk in nDS.
• The need for specific procedures like mechanical ventilation or ECMO further elevates mortality odds.
• Caregivers must recognize these risk factors in nDS to manage this high-risk population effectively.