Anesthesia for nonobstetric surgery during pregnancy.

Approximately 50,000 pregnant women undergo nonobstetric surgery each year in the United States. Administering anesthesia during such surgery is one of the only situations in which anesthesia impacts on more than one individual (mother and fetus) at the same time. Providing a safe anesthetic to the pregnant woman requires an understanding of the physiologic changes of pregnancy and the impact of anesthesia and surgery on the developing fetus. The following review will consider the risks of the mother and to the fetus during nonobstetric surgery.