Prenatal cytogenetic abnormalities: correlations of structural rearrangements and ultrasonographically detected fetal anomalies

Article Abstract:

Certain abnormal chromosome patterns may be more prevalent than others found by prenatal genetic testing. Abnormal chromosome patterns may be associated with abnormal fetal development such as Down syndrome. Researchers identified 664 fetuses with abnormal chromosome patterns out of 12,454 fetuses that underwent amniocentesis or chorionic villus sampling. The most common abnormal chromosome patterns were autosomal, sex, or marker aneuploidies (16%), and structural chromosomal rearrangements (26%). A standard test known as fluorescent in situ hybridization would not have detected 31% of the abnormalities. Ultrasound examination detected fetal abnormalities in 45% of the de novo chromosome rearrangements. Conclusive testing may need to be weighed against the time required.

Methods, Prenatal diagnosis, Prenatal ultrasonography

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Delivery of the marginally preterm infant: what are the minor morbidities?

Article Abstract:

Even premature babies born after 32 weeks' gestation may have health problems such as feeding difficulties or hypothermia, according to a study of 553 pregnant women who delivered prematurely. However, babies born at 35 or 36 weeks' gestation were less likely to have serious problems than those born at 32 weeks.

Health aspects, Infants (Premature), Premature infants, Premature birth

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Benefits associated with harmonic tissue imaging in the obstetric patient

Article Abstract:

Harmonic tissue imaging may provide better ultrasound images of a fetus. This technique uses low-amplitude, high-frequency ultrasound waves that produces less scatter and better resolution of some anatomic structures.

Innovations, Ultrasound imaging

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