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Short fetal nasal bone tied to 35% rise in down risk. (First Trimester).
NEW YORK -- A short fetal nasal bone--not just a lack of one--was linked to an increased risk for Down synckome in a study of 1,027 fetuses at 11-14 weeks' gestation, David A. Krantz reported.
The absence of a fetal nasal bone on first-trimester ultrasound has been associated with Down syndrome in previous studies. In the current study, sonographers at three European medical centers placed calipers in the out-to-out position on the images of any visible fetal nasal bone to determine its size. The median length in fetuses without Down syndrome grew from 2.5 mm at about 11 weeks to 3 mm at about 13 weeks' gestation, Mr. Krantz said at the 12th World Congress on Ultrasound in Obstetrics and Gynecology.
Among 15 ...
- Fetal nasal bone anomalies are highly predictive of down syndrome. (May Reduce...
- Magazine article from: OB GYN News Goldman, Erik L. May 15, 2002 700+ words
...The potential importance of the fetal nasal bone was first reported in 1995 by...11-14 weeks. However, the nasal bone assessment can also reduce the...conclude "examination of the fetal nasal bone could result in major reduction...
- Fetal nasal bone length shown to be independent of maternal factors.(Obstetrics)
- Magazine article from: OB GYN News Brunk, Doug October 1, 2004 700+ words
...and July 2003. They measured fetal nasal bone length and crown-rump length...practically no difference in fetal nasal bone length by quartile of maternal...to] actual differences in fetal nasal bone length," Dr. Toi said at...
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- Magazine article from: OB GYN News Walsh, Nancy February 1, 2002 700+ words
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...new case in which a chondroma of the nasal bone caused an external nasal deformity in...case of a chondroma arising from the nasal bone. The authors have made an attempt to...rare case of chondroma arising from the nasal bone. We discuss the problems encountered...
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- Magazine article from: OB GYN News Sullivan, Michele G. March 15, 2004 700+ words
NEW ORLEANS -- First-trimester nasal bone evaluation by ultrasound appears to be...of Risk for Aneuploidy (FASTER). "Nasal bone evaluation failed to identify even one...aneuploidy in the general population." Nasal bone images were obtained from 6,316 FASTER...
- New method shown to be effective for detection at mid-trimester scan.(nasal...
- Magazine article from: Women's Health Weekly January 9, 2003 700+ words
...in the early stages of gestation the nasal bone is underdeveloped in about 70% of fetuses...Gynecology. The team found that the nasal bone was underdeveloped in 61.8% of the...According to Nicolaides, "This shows that nasal bone underdevelopment at the mid-trimester...
- Hominoid lineages and keystone clues. (using nasal bone outlines to classify...
- Magazine article from: Science News Bower, Bruce August 1, 1987 700+ words
...crania had been collected in the wild. Nasal bone outlines sometimes displayconfusing similarities...There is certainly variation in hominoid nasal bone anatomy,' responds Olson, "but there...specimens fit my previous description [of nasal bone outlines] in hominoid groups.' On...
- Patent No. 7,555,136 Issued on June 30, Assigned to Victorion Technology for...
- News wire article from: US Fed News Service, Including US State News July 2, 2009 700+ words
...Taipei County, Taiwan, has developed a nasal bone conduction wireless communication transmitting...Patent & Trademark Office: "The nasal bone conduction wireless communication transmitting...by it closely touching the skin of the nasal bone, and making the oscillating wave of...
Source: HighBeam Research, Short fetal nasal bone tied to 35% rise in down risk. (First...