Elevated neonatal lymphocyte counts do not appear to distinguish between acute and preadmission fetal injury.
Neonatal umbilical cord glutathione S-transferase Alpha 1-1 plasma levels might give a reliable impression of early neonatal hepatocellular integrity.
A right cardiac axis in the fetus warrants detailed scanning with attention to origin of the great vessels, venous drainage, and sinus of the ventricles.
Three-dimensional ultrasound can be used effectively to examine the fetal ear in the second and third trimesters and provide valuable clinical information.
The fetal Rhc genotype can be determined by polymerase chain reaction amplification of the rare fetal cells in maternal blood.
Screening for prior and recent abuse among women in an urgent care setting, although not done commonly, has a high yield.
An estimated eight to 141 women were infected with human immunodeficiency virus through donor insemination nationwide before initiation of donor screening in 1985; current sperm bank practices are effective in preventing transmission.
Routine antenatal varicella screening is not cost-effective unless part of a policy to immunize all susceptible adults.
Routine prenatal carrier screening for cystic fibrosis appears to be cost-effective.
First-trimester genetic sonography is cost-effective when its overall sensitivity for Down syndrome is greater than 70%.
Most pregnant women will accept testing for human immunodeficiency virus if they know that a medication exists to reduce transmission to their infants, but few are aware of this intervention.
Twin pregnancy consisting of a complete mole and normal fetus carries increased risk for hemorrhage, medical complications, and the development of persistent gestational trophoblastic tumor.
Women who have total hysterectomies for benign causes may be receiving too many Papanicolaou tests, whereas women with supercervical hysterectomies appear to be in the guidelines for cervical cancer screening.
Neural network–directed review of Papanicolaou smears reported as atypical squamous (glandular) cells of undetermined significance may be of value in detecting squamous intraepithelial lesions.
Color Doppler energy may offer no advantage over color Doppler imaging for the assessment of intraovarian blood flow and diagnosis of ovarian cancer.
Telomerase activity may be associated with development and extension of epithelial ovarian cancer, but there is no relationship between p53 gene status and telomerase activity.
Surgical specimens from vulvar vestibulitis cases indicate increased proliferation and density of nerve fibers.
Valsalva voiding mechanism is a risk factor for short-term failure from autologous rectus fascia suburethral slings.
Intraoperative hypothermia does not increase the risk for developing post-cesarean wound infection.
Dietary supplementation with low doses of linoleic acid and calcium increases prostaglandin E2 levels and reduces the incidence of preeclampsia in high-risk women.
Platelet angiotensin II receptor density does not predict later development of preeclampsia.
The correlation between the plasma glucose level obtained following a glucose challenge test and the fasting plasma glucose level in the the first trimester is low.
Carbohydrate restriction in patients with diet-controlled gestational diabetes improves glycemic control and perinatal outcome.
Second-trimester maternal serum hCG elevation can be a marker of inadequate angiogenesis.
Adolescent mothers choosing depot medroxyprogesterone acetate or oral contraceptives immediately postpartum face similarly high rates of method discontinuation and repeat pregnancy within 1 year.
Seropositivity for Helicobacter pylori is frequent in pregnant women with hyperemesis gravidarum.
A simple two-term MEDLINE search strategy has a high sensitivity and precision and is useful for identifying randomized trials in obstetrics and gynecology.
Use of ordinal numbers (eg, twelfth) for gestational age introduces information bias into literature and may lead to clinical errors.
Colposcopy has good sensitivity and specificity in the diagnosis of squamous intraepithelial lesions and should be the standard for comparison of new diagnostic technologies.
Biblical accounts of the births of two sets of twins are viewed from the context of modern obstetrics.
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