Journal of obstetric, gynecologic, and neonatal nursing : JOGNN
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To evaluate the scientific literature on restrictions of eating and drinking during labor. ⋯ Little is known about the differences in labor progress, birth outcomes, and neonatal status between mothers who consume food and/or fluids during labor and women who fast during labor. Research also is needed on the effects of epidural opioids on gastric emptying, nutritional requirements during labor, and the physiologic implications of fasting during labor. Fasting during labor is a tradition that continues with no evidence of improved outcomes for mother or newborn. Many facilities (especially birth centers) do not restrict eating and drinking. Across the United States, most hospitals restrict intake, usually to ice chips and sips of clear liquids. Anesthesia studies have focused on gastric emptying, measured by various techniques, presuming that delayed gastric emptying predisposes women to aspiration. Narcotic analgesia delays gastric emptying, but results are conflicting on the effect of normal labor and of epidural anesthesia on gastric emptying. The effect of fasting in labor on the fetus and newborn and on the course of labor has not been studied adequately. Only one study evaluated the probable risk of maternal aspiration mortality, which is approximately 7 in 10 million births.