Updated March 2 at 7:02pm

Study: Oxygen may harm mothers in labor

When a fetal heartbeat pattern becomes irregular during labor, many practitioners give oxygen to the mother. But questions remain whether this oxygen supplementation benefits the fetus or may actually be potentially harmful, according to Warren Alpert team. More

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Study: Oxygen may harm mothers in labor

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PROVIDENCE – A clinical opinion written by third year resident Dr. Maureen Hamel, along with maternal-fetal medicine specialists Dr. Brenna Anderson and Dr. Dwight Rouse, of the Department of Obstetrics and Gynecology at Women & Infants Hospital of Rhode Island and The Warren Alpert Medical School of Brown University, has been published in the Jan. 10 online edition of the American Journal of Obstetrics & Gynecology.

When a fetal heartbeat pattern becomes irregular during labor, many practitioners give oxygen to the mother. But questions remain whether this oxygen supplementation benefits the fetus or may actually be potentially harmful.

The manuscript, entitled “Oxygen for intrauterine resuscitation: Of unproved benefit and potentially harmful,” aimed to make recommendations about the safety of the use of maternal oxygen supplementation in laboring women.

“Maternal oxygen is often given to laboring women to improve fetal metabolic status or in an attempt to alleviate non-reassuring fetal heart rate patterns,” said Hamel. “However, there are only two randomized trials investigating the use of maternal oxygen supplementation in laboring women. These studies did not find that supplementation is likely to benefit the fetus and may even be harmful.”

Based on their research, the team concludes that until it is studied properly in a randomized clinical trial, maternal oxygen supplementation in labor should be reserved for maternal hypoxia (lack of oxygen) and should not be considered an indicated intervention for non-reassuring fetal status.

Dr. Maureen Hamel, Department of Obstetrics and Gynecology at Women & Infants Hospital of Rhode Island¸American Journal of Obstetrics & Gynecology

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