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 velocityΠrate of blood flow in arteries and veinsΠin 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 January 26, 2015 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 January 26, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Monday, January 26, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Mistakes Should Serve a Lesson Says WHO

Ebola Mistakes Should Serve a Lesson Says WHO

AFP (Jan. 25, 2015) — The World Health Organization&apos;s chief on Sunday admitted the UN agency had been caught napping on Ebola, saying it should serve a lesson to avoid similar mistakes in future. Duration: 00:55 Video provided by AFP
Powered by NewsLook.com
Disneyland Measles Outbreak Spreads To 5 States

Disneyland Measles Outbreak Spreads To 5 States

Newsy (Jan. 24, 2015) — Much of the Disneyland measles outbreak is being blamed on the anti-vaccination movement. The CDC encourages just about everyone get immunized. Video provided by Newsy
Powered by NewsLook.com
Growing Measles Outbreak Worries Calif. Parents

Growing Measles Outbreak Worries Calif. Parents

AP (Jan. 23, 2015) — Public health officials are rushing to contain a measles outbreak that has sickened 70 people across 6 states and Mexico. The AP&apos;s Raquel Maria Dillon has more. (Jan. 23) Video provided by AP
Powered by NewsLook.com
Smart Wristband to Shock Away Bad Habits

Smart Wristband to Shock Away Bad Habits

Reuters - Innovations Video Online (Jan. 23, 2015) — A Boston start-up is developing a wristband they say will help users break bad habits by jolting them with an electric shock. Ben Gruber reports. Video provided by Reuters
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