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Fetal nasal bone length shown to be independent of maternal factors.(Obstetrics)
PHOENIX -- A woman's ethnic origin, age, weight, and diabetic status do not significantly affect the rate of growth or length of her fetus's nasal bones, Dr. Ants Toi said at the annual meeting of the American Institute of Ultrasound in Medicine.
The medical literature is mixed on this topic with respect to the influence of ethnic origin. In one British study of nasal bone hyoplasia at 15-22 weeks' gestation as a marker for trisomy 21, whites had fewer hypoplastic nasal bones, compared with Afro-Caribbeans (Ultrasound Obstet. Gynecol. 21[1]:15-18, 2003).
Dr. Toi and associates evaluated 1,424 women aged 16-46 years with normal pregnancy outcomes who were referred to Mount Sinai Hospital, Toronto, for first-trimester aneuploidy screening between January 2002 and July 2003. They measured fetal nasal bone length and crown-rump length and recorded maternal characteristics, including self-reported ethnic origin, age, weight, and ...
- 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
BOSTON -- Absence of nasal bone ossification, detectable with ultrasound...fetuses show complete absence of nasal bone ossification, while others show...of the same gestational age. The nasal bone abnormalities are the latest in a...
- Chondroma of the nasal bone: a case report.
- Magazine article from: Ear, Nose and Throat Journal Sreedharan, Suja Kamath, Mulki Pandurang Hegde, Mahesh Chandra Sundar, Seshachalam Lobo, Flora D. Raju, Penumetcha Krishnam January 1, 2006 700+ words
...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...
- Short fetal nasal bone tied to 35% rise in down risk. (First Trimester).
- Magazine article from: OB GYN News Boschert, Sherry February 1, 2003 700+ words
NEW YORK -- A short fetal nasal bone--not just a lack of one--was...reported. The absence of a fetal nasal bone on first-trimester ultrasound...the images of any visible fetal nasal bone to determine its size. The median...
- Missing fetal nasal bone refines trisomy 21 Dx. (Ultrasound Screening at 11-14...
- Magazine article from: OB GYN News Walsh, Nancy February 1, 2002 700+ words
...screening for the absence of a fetal nasal bone at 11-14 weeks' gestation is a new...karyotyping to have trisomy 21, the nasal bone was noted to be absent on ultrasound...603 normal-karyotype fetuses, the nasal bone was absent in only 3 (0.5%). Screening...
- Sensitivity of only 9%: no place for nasal bone evaluation by ultrasound in...
- 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...
