Rapid Increases in Plasma Prostaglandin Concentrations After Vaginal Examination and Amniotomy

Efficacy and safety of serial membrane sweeping to prevent post term pregnancy: a randomised study

“…Membrane sweeping causes increased local production of prostaglandin and thererby increased levels of its metabolites in the maternal circulation enhancing the ripening of cervix leading on to spontaneous onset of labor. 9,10 The plasma prostaglandins concentration after sweeping is 10% of those achieved in labour. 11 Chorioamnionitis, premature rupture of membranes and bleeding from undiagnosed placenta previa are mentioned theoretically as risks of membrane sweeping.…”

Effect of Drotavarine Hydrochloride and A Combination of - Hyoscine–NButyl Bromide With Valethamate Bromide on the Duration of Active Phase of Labor - A Comparative Study

“…[3] Cervical dilatation, an important factor,, determines duration of labor and is result of the driving force of uterine contractions acting against passive tissue resistance. [4] Pattern of cervical dilatation, during normal labor is sigmoid shaped (Friedman's Partograph [5] )…”

Ocitocina em cesarianas: qual a Melhor Maneira de Utilizá-la?

“…Essa enzima é aparentemente derivada da placenta e é capaz de degradar tanto a ocitocina quanto o ADH, sendo responsável por regular a concentração da ocitocina no útero. Provavelmente, essa aminopeptidase tenha pouca ação sobre a ocitocina plasmática, pois a meia-vida do hormônio é similar em gestantes em trabalho de parto e em homens, ou seja, aparentemente a sua metabolização não depende da concentração da aminopeptidase plasmática 12,16,17 .…”

“…This enzyme is apparently derived from the placenta and is capable of degrading both oxytocin and ADH, and it is responsible for regulating the uterine concentration of oxytocin. It is possible that this aminopeptidase has little action on plasma oxytocin, since the half-life of the hormone is similar in parturients in labor and in men, i.e., apparently its metabolism does not depend on the plasma concentration of aminopeptidase 12,16,17 .…”