Antidepressants During Pregnancy Puts Newborns at Risk
Reported October 12, 2009
(Ivanhoe Newswire) — Exposure to a certain class of antidepressant medications during pregnancy may put a baby at risk for preterm birth, a low five-minute Apgar score (a measure of overall health of the baby) and admission to the neonatal intensive care unit, according to a recent report.
One in 10 pregnant women is estimated to have depression comparable in frequency and severity to postpartum depression. “Depression, antidepressants and lifestyle factors associated with depression may influence pregnancy outcomes and newborn health,” study authors are quoted as saying. “The safety profile of antidepressant medication in pregnancy is undetermined, but depression during pregnancy can be serious and has been associated with an increased maternal mortality.”
A class of antidepressants known as selective serotonin reuptake inhibitors (SSRIs) have been used during pregnancy since the early 1990s and are recommended as the first choice for pregnant women in many countries.
Najaaraq Lund, M.D., of the Bandim Health Project, Indepth Network in Bissau, Guinea-Bissau, and Aarhus University in Aarhus, Denmark, and colleagues studied women receiving prenatal care from 1989 to 2006. They compared birth outcomes including gestational age, birth weight and Apgar score among babies born to 329 women who were treated with SSRIs, 4,902 who had a history of psychiatric illness but were not treated with SSRIs and 51,770 who had no history of psychiatric illness.
Women who took SSRIs during pregnancy gave birth an average of five days earlier and had twice the risk of preterm delivery as women with no history of psychiatric illness. Infants exposed to the medications in utero were significantly more likely to have a five-minute Apgar score of seven or below (seven is a general indicator of good infant health) or to be admitted to the neonatal intensive care unit (NICU). Head circumference and birth weight did not differ among the three groups.
SSRIs have been shown to readily cross the placenta and appear in the umbilical cord blood of infants, the authors noted. Several previous observations have described withdrawal symptoms in infants born after exposure to the medications. In this study, exposed infants admitted to the NICU experienced symptoms that could have been caused by withdrawal from or adverse effects of SSRIs, including jitteriness, seizures, respiratory problems, infections and jaundice.
“The study justifies increased awareness to the possible effects of intrauterine exposure to antidepressants,” the authors concluded. “However, treatment of depression during pregnancy may be warranted and future studies need to distinguish between individual SSRIs to find the safest medication.”
SOURCE: Archives of Pediatrics & Adolescent Medicine, October 2009