0000000000815327

AUTHOR

Peter Kaufmann

showing 2 related works from this author

Morphology of placental villi after premature delivery and its clinical relevance

1986

Based on a new concept of maturation of the placental villous tree and its disorders (synchronous and asynchronous immaturity, asynchronous maturity, hyperpermaturity, and terminal villi deficiency) we studied the possible effect of the placental villous tree on the premature onset of labour. In mature normal neonates irregular and asynchronous villous patterns were found in 50% of cases. In prematurely delivered neonates, only 33% of the corresponding placentas show synchronous immature villous patterns. Uterine bleeding in the first trimester was associated with a 42% of incidence of premature maturation of the villous tree. These findings strengthen the idea that hormonal imbalance in ea…

medicine.medical_specialtyPregnancy High-RiskPregnancy Complications CardiovascularPhysiologyGestational AgeEarly pregnancy factorPlacental structuredigestive systemObstetric Labor PrematurePre-EclampsiaPregnancyMaldevelopmentPlacentamedicineHumansClinical significanceGynecologybiologybusiness.industryClinical eventsSmokingInfant NewbornObstetrics and GynecologyUterine bleedingGeneral MedicineFirst trimestermedicine.anatomical_structureembryonic structuresbiology.proteinLabor OnsetFemaleChorionic VillibusinessMaternal AgeArchives of Gynecology
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Classification of human placental villi. I. Histology.

1979

The classification of human placental villi was reviewed on the basis of material prepared by means of special methods. The material from in situ normal-term placentae was biopsied by aspiration into glutaraldehyde. The classification was made on the basis of light-microscopic observations of semithin sections, reconstructions from serial sections, and scanning-electron micrographs. The peripheral villous tree is roughly divided into stem (ramuli), intermediate and terminal villi. The intermediate villi may be further subdivided as mature and immature types, which are found between the stem and terminal villi. Some of the terminal villi possess a local specialization described as the neck r…

Pathologymedicine.medical_specialtyHistologyMicrovilliHistocytochemistryPlacentadigestive oral and skin physiologyCell MembraneHuman placentaHistologyCell BiologyAnatomyBiologydigestive systemPathology and Forensic Medicinemedicine.anatomical_structurePregnancyPlacentaembryonic structuresmedicineMicroscopy Electron ScanningHumansFemalereproductive and urinary physiologyCell and tissue research
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