Biomedical subjects

B V Henson

Publications and source records attributed to B V Henson.

3 recordsLinked to original sources

PubMed1990

A prospective randomized study of saline solution amnioinfusion.

We performed a prospective randomized study of saline solution amnioinfusion in four types of pregnancy complications: postterm pregnancy, variable decelerations in labor, preterm labor, and oligohydramnios-suspected growth retardation. A total of 100 patients were randomized, 43 to undergo amnioinfusion and 57 to be in a control group. Patients undergoing amnioinfusion had a significantly decreased incidence of postpartum endometritis (2.4% vs 19%, p = 0.01) and a lower incidence of cesarean delivery that was due to fetal distress in labor (4.7% vs 16%, p = 0.07). The use of amnioinfusion also made a significant contribution to the four-quadrant ultrasonographic estimate of amniotic fluid volume (14.7 vs 9.8 cm, p less than 0.001). All other maternal and neonatal outcome parameters were similar between the two groups. We conclude that saline solution amnioinfusion in labor may be a beneficial procedure but that further studies are needed.

Adolescent↗

PubMed1990

A comparison between umbilical artery velocimetry and standard antepartum surveillance in hospitalized high-risk patients.

One hundred forty-six women admitted to the high-risk obstetric unit between November 1987 and December 1988 participated in a study designed to compare Doppler umbilical artery flow studies with standard antepartum testing in the prediction of adverse fetal outcome. A Doppler ultrasound examination was considered abnormal when the average systolic/diastolic ratio was greater than or equal to 4. The antepartum testing consisted of a combined use of nonstress testing and contraction stress testing. If both the Doppler systolic/diastolic ratio and the antepartum testing were abnormal, there was a significantly increased incidence of intrauterine growth retardation (47%), fetal distress necessitating cesarean section (67%), and admission to neonatal intensive care (86%). Doppler umbilical artery flow studies are an important adjunct to antepartum fetal surveillance in high-risk patients but should not determine clinical management when standard antepartum surveillance remains normal.

Blood Flow Velocity↗

PubMed1989

Sonographic measurements and ratios in fetuses with Down syndrome.

Ultrasound measurements of 15 fetuses with trisomy 21 detected during the 17th week of gestation were matched retrospectively to those of 45 normal controls. We compared nine standard ultrasound measurements of the fetal head, abdomen, and femur in these two groups. The fetuses with trisomy 21 had significantly shorter mean femur lengths, narrower occipitofrontal diameters, and increased biparietal diameter (BPD)/femur length and abdominal circumference/femur length ratios. An increased BPD/femur length ratio was the ultrasound finding that best predicted a fetus with Down syndrome. A BPD/femur length ratio of 1.80 or higher was 40% sensitive and 97.8% specific in predicting Down syndrome, and had a false-positive rate of only 2.2%. An increased second-trimester BPD/femur length ratio measured by ultrasound may prove beneficial as an additional screening test for Down syndrome.

Down Syndrome↗