Featured Research

from universities, journals, and other organizations

Yale Scientists Develop Non-Invasive Procedure For Detecting Fetal Anemia

Date:
January 10, 2000
Source:
Yale University
Summary:
Yale scientists have successfully used a non-invasive technology called Doppler ultrasound to detect whether or not a fetus is anemic, eliminating the risks accompanying traditional invasive tests for the deficiency.

Yale scientists have successfully used a non-invasive technology called Doppler ultrasound to detect whether or not a fetus is anemic, eliminating the risks accompanying traditional invasive tests for the deficiency.

Related Articles


"Invasive procedures place the fetus in unnecessary danger," said Giancarlo Mari, M.D., associate professor of obstetrics and gynecology at Yale School of Medicine and the study1s lead author. "In more than 70 percent of cases, the fetuses tested were either non-anemic or mildly anemic and an invasive procedure could have been either avoided or delayed."

Between one and two in every 1,000 pregnancies in the U.S. is at risk of having a fetus that may develop anemia, an oxygen deficiency in the blood. A fetus that develops anemia may require transfusion because he/she is at risk of dying. However, only between 10 and 20 percent of the fetuses at risk for anemia will develop the deficiency.

Diagnosis of fetal anemia is currently performed using invasive procedures such as amniocentesis and cordocentesis. Both carry a risk of death to the fetus and if an initial sample does not demonstrate anemia, the timing of repeat invasive procedures is arbitrarily determined.

Published in the January 6 issue of New England Journal of Medicine, the study shows that anemic fetuses have a higher blood flow velocityĐrate of blood flow in arteries and veinsĐin cerebral arteries than non-anemic fetuses. Doppler ultrasound was used to test fetal blood velocity and to determine fetal anemia.

The assessment of fetal blood velocity with Doppler ultrasound detected all the moderately and severely anemic fetuses, with a false positive rate of 15 percent. Doppler study can be performed in three to five minutes and does not pose any risk to the mother and the fetus. The procedure is also far less expensive than amniocentesis and cordocentesis.

"By using Doppler ultrasound to assess the velocity of blood flow, we can save about $50 million each year in the United States alone," said Mari. "The procedure is also easy to perform in the hands of experienced operators."

The data used in the study were compiled at eight medical centers in the United States, Europe, South America and Asia.


Story Source:

The above story is based on materials provided by Yale University. Note: Materials may be edited for content and length.


Cite This Page:

Yale University. "Yale Scientists Develop Non-Invasive Procedure For Detecting Fetal Anemia." ScienceDaily. ScienceDaily, 10 January 2000. <www.sciencedaily.com/releases/2000/01/000110070659.htm>.
Yale University. (2000, January 10). Yale Scientists Develop Non-Invasive Procedure For Detecting Fetal Anemia. ScienceDaily. Retrieved November 1, 2014 from www.sciencedaily.com/releases/2000/01/000110070659.htm
Yale University. "Yale Scientists Develop Non-Invasive Procedure For Detecting Fetal Anemia." ScienceDaily. www.sciencedaily.com/releases/2000/01/000110070659.htm (accessed November 1, 2014).

Share This



More Health & Medicine News

Saturday, November 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Melafind: Spotting Melanoma Without a Biopsy

Melafind: Spotting Melanoma Without a Biopsy

Ivanhoe (Oct. 31, 2014) — The MelaFind device is a pain-free way to check suspicious moles for melanoma, without the need for a biopsy. Video provided by Ivanhoe
Powered by NewsLook.com
Battling Multiple Myeloma

Battling Multiple Myeloma

Ivanhoe (Oct. 31, 2014) — The answer isn’t always found in new drugs – repurposing an ‘old’ drug that could mean better multiple myeloma treatment, and hope. Video provided by Ivanhoe
Powered by NewsLook.com
Chronic Inflammation and Prostate Cancer

Chronic Inflammation and Prostate Cancer

Ivanhoe (Oct. 31, 2014) — New information that is linking chronic inflammation in the prostate and prostate cancer, which may help doctors and patients prevent cancer in the future. Video provided by Ivanhoe
Powered by NewsLook.com
Sickle Cell: Stopping Kids’ Silent Strokes

Sickle Cell: Stopping Kids’ Silent Strokes

Ivanhoe (Oct. 31, 2014) — Blood transfusions are proving crucial to young sickle cell patients by helping prevent strokes, even when there is no outward sign of brain injury. Video provided by Ivanhoe
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins