Histologic evidence of old intrauterine bleeding is more frequent in prematurity

Article Abstract:

Unnoticed bleeding before birth coming from the decidua of the placenta may be associated with preterm birth. Researchers studied 462 placentas delivered before 32 weeks' gestation for the presence of hemosiderin, a blood pigment that indicates old bleeding. Hemosiderin deposits in the basal plate membranes of the placenta were associated with placental lesions indicating damage to the placenta. The presence of hemosiderin may cause inflammation of the basal plate decidua, leading to premature rupture of the membranes or preterm contractions. Most (73%) of the 196 patients with hemosiderin deposits in the placenta did not have a history of bleeding during pregnancy. Hemosiderin deposits in the membranes outside the placental decidua were not associated with placental lesions.

Health aspects, Risk factors, Preeclampsia, Premature birth, Uterine bleeding, Uterine hemorrhage

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Transabdominal fetal pulse oximetry with near-infrared spectroscopy

Article Abstract:

The study determines the feasibility and noninvasive fetal pulse oximetry in the human fetus with transabdominal continuous-wave near-infrared spectroscopy. The preliminary data indicates that transabdominal fetal pulse oximetry is feasible for human patient application.

Usage, Diagnosis, Near infrared spectroscopy, Pregnancy, Complications of, Pregnancy complications, Chorionic villus sampling

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Design, execution, interpretation, and reporting of economic evaluation studies in obstetrics

Article Abstract:

Guidelines for design, interpretation, execution and reporting of economic evaluation studies in obstetrics are presented. A PubMed search of economic evaluation articles to identify the quality of published studies is also included.

Study and teaching, Obstetrics

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