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  • Non-invasive fetal...

Non-invasive fetal oxygen monitor could make for safer deliveries

Written By : Hina Zahid |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2020-06-19T09:30:53+05:30  |  Updated On 19 Jun 2020 12:43 PM IST
Non-invasive fetal oxygen monitor could make for safer deliveries
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New Non-invasive fetal oxygen monitor could make for safer deliveries with safe outcomes for mothers and child according to a study published in the journal IEEE Transactions in Biomedical Engineering.

A device to directly measure blood oxygen saturation in a fetus during labor has been developed by researchers at the University of California, Davis. By providing better information about the health of a fetus right before birth, the device could both reduce the rate of Cesarean sections and improve outcomes in difficult deliveries.

Since the 1970s, U.S. obstetricians have monitored fetal heart rate and the mother's rate of contractions as a way to assess the health of the fetus during labor. Taken together, these measurements are a proxy for fetal blood oxygen levels. If the fetus is deprived of oxygen before birth, it may suffer lasting damage or die - leading doctors to perform C-sections if they think a fetus is getting into trouble.

This practice has led to a high rate of C-sections, but without much improvement in the rate of fetal complications associated with oxygen deficiency.

"We wondered if we could build a device to measure fetal blood oxygen saturation directly," said Soheil Ghiasi, professor of electrical and computer engineering at UC Davis.

Results from the work have been presented at the Society for Maternal-Fetal Medicine pregnancy meeting in Grapevine, Texas in February, and in an upcoming issue of IEEE Transactions in Biomedical Engineering.

Direct measurement of fetal blood oxygen saturation

The new device is based on the same principle as the oximeter you might have slipped on your finger at the doctor's office. Hemoglobin in red blood cells absorbs colors of light differently depending on how much oxygen it has bound. A finger oximeter measures different wavelengths of light to calculate the oxygen saturation in your blood.

Measuring blood oxygen saturation in a fetus within the mother poses additional problems. First, there's more tissue to get through to reach the fetus, so only a tiny amount of light can be reflected back to be measured non-invasively.

Second, there's the problem of separating the signal from fetal blood from that of the mother.

Experimental tests in pregnant sheep, published in IEEE Transactions of Biomedical Engineering, show that the new device could accurately measure oxygen levels in the fetus.

Ghiasi became interested in the problem when he and his wife had their first child five years ago. Although like many couples they had wanted a natural childbirth, they found that the care team soon recommended C-section based on fetal monitoring.

For more details click on the link: http://dx.doi.org/10.1109/TBME.2020.3000977


oxygen monitorc-sectionsieee transactions on biomedical engineering
Source : IEEE Transactions on Biomedical Engineering
Hina Zahid
Hina Zahid

    Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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