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Pregnancy Today's Advisory Panel Answers:
Do epidural medications cross the placenta?

Question

I am an RNC with over 10 years of OB experience. I also teach childbirth classes. I am concerned about an article that was in our daily news. It is about a couple who are teaching the Bradley method of childbirth. When this woman was contacted about her classes she made specific matter-of-fact statements about epidurals. The statement that she made was that epidural medications cross the placenta and make the baby drowsy at birth, as do local anesthesias. This has not been my experience. Can you please give me information on epidurals and the effects to the fetus? - Carol -- Crestview

Answer

As with every extreme position, there is a string of truth. Here are the facts: Local anesthetics cross the placenta. Local anesthetics are used in epidurals. Some local anesthetic placed into the epidural space will be absorbed into the bloodstream and cross the placenta. The small amount of local anesthetic from a properly placed epidural that is absorbed into the bloodstream and crosses the placenta should not affect the mentation of the baby. The lack of affect on the mentation of the baby is an advantage that regional techniques, such as spinals/epidurals, have over intravenous medications.

This Week's Expert Q & A

Kathy Loebel, certified nurse-midwife, answers: “How can I avoid an episiotomy or tearing?"

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