BJOG : an international journal of obstetrics and gynaecology
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Comparative Study
Hidden acidosis: an explanation of acid-base and lactate changes occurring in umbilical cord blood after delayed sampling.
To explore the 'hidden acidosis' phenomenon, in which there is a washout of acid metabolites from peripheral tissues in both vaginal and abdominal deliveries, by investigating temporal umbilical cord blood acid-base and lactate changes after delayed blood sampling. ⋯ Delayed umbilical cord sampling affected the acid-base balance and haematological parameters after both vaginal and caesarean deliveries, although the effect was more marked in the group delivered vaginally. The hidden acidosis phenomenon explains this change towards acidaemia and lactaemia. Arterial haemoconcentration was not the explanation of the acid-base drift.
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Randomized Controlled Trial
Cost-effectiveness of induction of labour at term with a Foley catheter compared to vaginal prostaglandin E₂ gel (PROBAAT trial).
To assess the economic consequences of labour induction with Foley catheter compared to prostaglandin E2 gel. ⋯ Foley catheter and prostaglandin E2 labour induction generate comparable costs.
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To determine whether women with a history of surgery for cervical intraepithelial neoplasia (CIN) are at an increased risk of subfertility, measured as a time to pregnancy of more than 12 months. ⋯ Women with a history of cervical treatment for CIN are at increased risk of subfertility, measured as a time to pregnancy of more than 12 months.
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To compare the prevalence of recurrent pre-eclampsia between women who have and do not have metabolic syndrome when non-pregnant. ⋯ Interpregnancy metabolic syndrome predisposes to recurrent pre-eclampsia.
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Increases in atonic postpartum haemorrhage (PPH) have been reported from several countries in recent years. We attempted to determine the potential cause of the increase in atonic and severe atonic PPH. ⋯ Changes in maternal characteristics and obstetric practice do not explain the recent increase in atonic and severe atonic PPH.