Exposure to General Anesthesia May Contribute to the Association between Cesarean Delivery and Autism Spectrum Disorder.
General anesthesia during cesarean delivery, not the surgery itself, may slightly increase autism risk.
01Research in Context
What this study did
Huberman Samuel et al. (2019) asked if the way a baby is born changes autism risk. They looked at children with autism and compared three groups: vaginal birth, cesarean with general anesthesia, and cesarean without general anesthesia.
The team used medical records from a large population. They checked who later received an autism diagnosis.
What they found
Cesarean delivery itself did not raise autism odds. Only cesarean plus general anesthesia showed a small but real increase in risk.
The result points to the anesthesia drug, not the surgery, as the possible trigger.
How this fits with other research
Atladóttir et al. (2010) also tracked prenatal events and autism. They found that serious maternal infections in early or mid-pregnancy can raise risk. Both studies agree that timing and type of exposure matter.
Xenitidis et al. (2010) measured newborn IgG antibodies. Lower levels were linked to slightly lower autism odds. Their data hint that immune signals around birth may protect or harm, matching Maayan’s idea that anesthesia could disturb the immune system.
Friedlander et al. (2019) showed that a prenatal oxytocin-blocking drug only hurt social skills in kids with risky genes. Like Maayan, they show that a birth-related drug can shape later development, especially when paired with another vulnerability.
Why it matters
If you work with expectant families, share that general anesthesia during cesarean is low-risk but not zero-risk. When safe, spinal or epidural may be kinder to the baby’s developing brain. Document birth details in your intake; kids born under general anesthesia may merit closer early monitoring for social-communication milestones.
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02At a glance
03Original abstract
Cesarean section (CS) has been consistently associated with susceptibility to autism spectrum disorder (ASD), however, the underlying mechanism for this association remains vague. Here, we studied various pre-peri-and-neonatal factors among 347 children with ASD, 117 children with other developmental delays (DD), and 2226 age, sex and ethnicity matched controls. We found that CS is significantly associated with an increased risk of ASD but not DD (p = 0.019 and p = 0.540 respectively). Furthermore, we show that only CS performed with general anesthesia (GA) elevated the risk of ASD with no significant difference between indicated and non-indicated surgeries (aOR = 1.537; 95% CI 1.026-2.302, and aOR = 1.692; 95% CI 1.057-2.709, pdiff = 0.865). We therefore suggest that exposure to GA during CS may explain the association between CS and ASD.
Journal of autism and developmental disorders, 2019 · doi:10.1007/s10803-019-04034-9