Blindness associated with preeclampsia and eclampsia

Article Abstract:

Blindness associated with severe preeclampsia or eclampsia appears to be caused by tiny hemorrhages or localized swelling in the visual areas of the brain. Over a 14-year period, 165,000 women gave birth at Parkland Hospital in Dallas. Twelve percent to 14% annually had hypertension in pregnancy and 70 women were diagnosed with eclampsia. Fifteen women with severe preeclampsia or eclampsia experienced blindness, which resolved within four hours to eight days in all cases. Thirteen women had a CT scan and five of these also had an MRI scan. Evaluation of the images and review of the literature suggest that blindness in these cases resulted from tiny hemorrhages and swelling in the visual centers of the brain. This is probably due to abnormalities in blood flow to these areas.

Causes of, Complications and side effects, Blindness, Eclampsia, Preeclampsia

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Utillity of Doppler velocimetry in predicting outcome in twin reversed-arterial perfusion sequence

Article Abstract:

Pump twins affected by twin reversed-arterial perfusion sequence who have a Doppler ultrasound resistive index in the umbilical cord greater than 0.20 have a better prognosis than those with a smaller resistive index. Twin reversed-arterial perfusion sequence is a twin pregnancy in which one twin has no heart. The other twin, called the pump twin, must therefore pump blood for both fetuses. This can cause heart failure in the healthy twin.

Usage, Prognosis, Diseases, Twins, Doppler ultrasonography

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Ultrasonographic prediction of fetal outcome in suspected skeletal dysplasias with use of the femur length-to-abdominal circumference ratio

Article Abstract:

The ratio of fetal femur length to abdominal circumference using ultrasonographically obtained measurements may accurately predict fatal skeletal deformities before birth. Researchers studied 30 pregnancies in which the sonograms detected possible skeletal dysplasias. Twelve of 13 fetuses with fatal deformities had a femur-to-abdominal circumference ratio of less than 0.16, while all fetuses with a ratio over 0.16 had normal skeletons.

Fetus, Skeleton, Prenatal ultrasonography, Ultrasonics in obstetrics

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