Evidence-based maternal and perinatal healthcare practices in public hospitals in Argentina

Evidence-based medicine Maternal and perinatal health services Prevalence studies Use of maternal and perinatal health practices Objective: To investigate the use of beneficial maternal and perinatal healthcare practices in a network of public maternity hospitals in Argentina. Method: A multicenter, prospective, descriptive study of 6661 deliveries in 9 hospitals. The use of 5 obstetric care practices that reduce maternal and perinatal morbidity and mortality was evaluated. Results: Median use rates for the selected practices were: continuous support for women during childbirth (17.9%); corticosteroids for preterm birth (35.3%); avoidance of episiotomy in primiparous women (41.2%); iron and folate supplementation (52.5%); active management of third stage of labor (93.5%). Conclusion: There is limited use of the selected evidence-based maternal and perinatal practices in public hospitals in Argentina and a large variation in their use among and within hospitals. Efforts should be made to increase the use of these evidence-based practices

Population differences and the effect of vaginal progesterone on preterm birth in women with threatened preterm labor*

Objective: Threatened preterm labor (tPTL) is a complication of pregnancy. Identification of women and clinical definition differs between countries. This study investigated differences in tPTL and effectiveness of vaginal progesterone to prevent preterm birth (PTB) between two countries. Methods: Secondary analysis of a randomized controlled trial (RCT) from Argentina and Switzerland comparing vaginal progesterone to placebo in women with tPTL (n = 379). Cox proportional hazards analysis was performed to compare placebo groups of both countries and to compare progesterone to placebo within each country. We adjusted for baseline differences. Iatrogenic onset of labor or pregnancy beyond gestational age of interest was censored. Results: Swiss and Argentinian women were different on baseline. Risks for deliver

Population differences and the effect of vaginal progesterone on preterm birth in women with threatened preterm labor (.)

Threatened preterm labor (tPTL) is a complication of pregnancy. Identification of women and clinical definition differs between countries. This study investigated differences in tPTL and effectiveness of vaginal progesterone to prevent preterm birth (PTB) between two countries

Population differences and the effect of vaginal progesterone on preterm birth in women with threatened preterm labor^*

<p><i>Objective</i>: Threatened preterm labor (tPTL) is a complication of pregnancy. Identification of women and clinical definition differs between countries. This study investigated differences in tPTL and effectiveness of vaginal progesterone to prevent preterm birth (PTB) between two countries.</p> <p><i>Methods</i>: Secondary analysis of a randomized controlled trial (RCT) from Argentina and Switzerland comparing vaginal progesterone to placebo in women with tPTL (<i>n</i> = 379). Cox proportional hazards analysis was performed to compare placebo groups of both countries and to compare progesterone to placebo within each country. We adjusted for baseline differences. Iatrogenic onset of labor or pregnancy beyond gestational age of interest was censored.</p> <p><i>Results</i>: Swiss and Argentinian women were different on baseline. Risks for delivery <14 days and PTB < 34 and < 37 weeks were increased in Argentina compared to Switzerland, HR 3.3 (95% CI 0.62–18), 54 (95% CI 5.1–569) and 3.1 (95% CI 1.1–8.4). In Switzerland, progesterone increased the risk for delivery <14 days [HR 4.4 (95% CI 1.3–15.7)] and PTB <37 weeks [HR 2.5 (95% CI 1.4–4.8)], in Argentina there was no such effect.</p> <p><i>Conclusion</i>: In women with tPTL, the effect of progesterone may vary due to population differences. Differences in populations should be considered in multicenter RCTs.</p

A randomized trial of planned cesarean or vaginal delivery for twin pregnancy

Background: Twin birth is associated with a higher risk of adverse perinatal outcomes than singleton birth. It is unclear whether planned cesarean section results in a lower risk of adverse outcomes than planned vaginal delivery in twin pregnancy.\ud \ud Methods: We randomly assigned women between 32 weeks 0 days and 38 weeks 6 days of gestation with twin pregnancy and with the first twin in the cephalic presentation to planned cesarean section or planned vaginal delivery with cesarean only if indicated. Elective delivery was planned between 37 weeks 5 days and 38 weeks 6 days of gestation. The primary outcome was a composite of fetal or neonatal death or serious neonatal morbidity, with the fetus or infant as the unit of analysis for the statistical comparison.\ud \ud Results: A total of 1398 women (2795 fetuses) were randomly assigned to planned cesarean delivery and 1406 women (2812 fetuses) to planned vaginal delivery. The rate of cesarean delivery was 90.7% in the planned-cesarean-delivery group and 43.8% in the planned-vaginal-delivery group. Women in the planned-cesarean-delivery group delivered earlier than did those in the planned-vaginal-delivery group (mean number of days from randomization to delivery, 12.4 vs. 13.3; P = 0.04). There was no significant difference in the composite primary outcome between the planned-cesarean-delivery group and the planned-vaginal-delivery group (2.2% and 1.9%, respectively; odds ratio with planned cesarean delivery, 1.16; 95% confidence interval, 0.77 to 1.74; P = 0.49).\ud \ud Conclusion: In twin pregnancy between 32 weeks 0 days and 38 weeks 6 days of gestation, with the first twin in the cephalic presentation, planned cesarean delivery did not significantly decrease or increase the risk of fetal or neonatal death or serious neonatal morbidity, as compared with planned vaginal delivery