In the final episode of our four-part series “Hot Topics in Neonatology” we explore neonatal abstinence syndrome (NAS), a byproduct of prenatal drug exposure — one of the fastest growing public health problems in the world. In the U.S., the most recent data from the CDC indicate that the number of pregnant people with opioid-related diagnoses documented at delivery increased by 131% from 2010 to 2017. The implications for their babies include preterm birth, still birth, birth defects and neon...