Autism & Developmental

Rate and Risk Factors Associated with Autism Spectrum Disorder in Congenital Diaphragmatic Hernia.

Danzer et al. (2018) · Journal of autism and developmental disorders 2018
★ The Verdict

Survivors of diaphragmatic hernia repair carry nine times the typical autism risk—screen them early and often.

✓ Read this if BCBAs who see children with complex medical or surgical histories.
✗ Skip if Clinicians whose caseload is limited to typically developing children.

01Research in Context

01

What this study did

Doctors looked at children who were born with a hole in the diaphragm. This birth defect is called congenital diaphragmatic hernia, or CDH.

They checked how many of these children later received an autism diagnosis. The team also noted which kids had other delays like low muscle tone or speech problems.

02

What they found

Children who survive CDH have nine times the usual rate of autism. Delays in movement, speech, or thinking were the clearest warning signs.

03

How this fits with other research

Sparaci et al. (2015) already showed that any major birth defect raises autism risk. Enrico’s CDH numbers now give a firm size to that risk for one specific defect.

Atladóttir et al. (2015) found that sick newborns in general later show more autism. The new study tightens the lens to a single surgical group and still sees the jump.

Maeyama et al. (2018) link congenital CMV infection to an 11-fold autism increase. CDH gives a similar nine-fold jump, hinting that different early body insults can lead to the same outcome.

04

Why it matters

If you serve a child who had CDH repair, add autism screening to every visit. Watch for motor or language delays—they flag the highest risk. Early referral means earlier therapy and better long-term gains.

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Pull up the medical history of each client; if CDH is listed, run an M-CHAT or other autism screener this week.

02At a glance

Intervention
not applicable
Design
case series
Sample size
110
Population
autism spectrum disorder
Finding
not reported

03Original abstract

To determine the rate and predictors of autism spectrum disorder (ASD) in congenital diaphragmatic hernia (CDH). Between 06/2004 and 09/2015 a total of 110 CDH survivors underwent neurodevelopmental (ND) testing and screening for ASD, followed by a full autism diagnostic evaluation if indicated at our institution. We found a 9 time higher rate of ASD in CDH children compared to the general population (P = 0.0002). Multiple patient-related and clinical variables risk factors of ASD were identified by univariate analysis. However, only short-term and long-term neurodevelopmental delays were strongly associated with ASD in CDH by multivariate comparisons. There is a striking prevalence of ASD in CDH survivors and our findings suggest that all CDH children should be regularly screened for ASD.

Journal of autism and developmental disorders, 2018 · doi:10.1007/s10803-018-3472-6