Prenatal ultrasound exposure and association with postnatal hearing outcomes

Prenatal ultrasound exposure and association with postnatal hearing outcomes

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3646553/

In this study, it was investigated whether prenatal ultrasound could lead to hearing loss. They actually found a correlation with successfully passing the hearing tests and number of ultrasound scans.

Although in this study it was found that number of ultrasound scans improved fetal hearing outcomes, that is not the only thing that needs to be considered. -Why- did it improve the outcome?

We need more research.

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