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Objective To evaluate the effectiveness of 200 mg of daily vaginal natural progesterone to prevent preterm birth in women with preterm labour. Design Multicentre, randomised, double-blind, placebo-controlled trial. Setting Twenty-nine centres in Switzerland and Argentina. Population A total of 385 women with preterm labour (240/7 to 336/7 weeks of gestation) treated with acute tocolysis. Methods Participants were randomly allocated to either 200 mg daily of self-administered vaginal progesterone or placebo within 48 hours of starting acute tocolysis. Main outcome measures Primary outcome was delivery before 37 weeks of gestation. Secondary outcomes were delivery before 32 and 34 weeks, adverse effects, duration of tocolysis, re-admissions for preterm labour, length of hospital stay, and neonatal morbidity and mortality. The study was ended prematurely based on results of the intermediate analysis. Results Preterm birth occurred in 42.5% of women in the progesterone group versus 35.5% in the placebo group (relative risk [ RR] 1.2; 95% confidence interval [95% CI] 0.93-1.5). Delivery at <32 and <34 weeks did not differ between the two groups (12.9 versus 9.7%; [ RR 1.3; 95% CI 0.7-2.5] and 19.7 versus 12.9% [ RR 1.5; 95% CI 0.9-2.4], respectively). The duration of tocolysis, hospitalisation, and recurrence of preterm labour were comparable between groups. Neonatal morbidity occurred in 44 (22.8%) cases on progesterone versus 35 (18.8%) cases on placebo ( RR: 1.2; 95% CI 0.82-1.8), whereas there were 4 (2%) neonatal deaths in each study group. Conclusion There is no evidence that the daily administration of 200 mg vaginal progesterone decreases preterm birth or improves neonatal outcome in women with preterm labour. [ABSTRACT FROM AUTHOR]

Objective To analyse life-threatening obstetric complications that occurred in public hospitals in Argentina. Design Multicentre collaborative cross-sectional study. Setting Twenty-five hospitals included in the Perinatal Network of Buenos Aires Metropolitan Area. Population Women giving birth in participating hospitals during a 1-year period. Methods All cases of severe maternal morbidity ( SMM) and maternal mortality ( MM) during pregnancy (including miscarriage and induced abortion), labour and puerperium were included. Data were collected prospectively. Main outcome measures Identification criteria, main causes and incidence of SMM; case-fatality rates, morbidity-mortality index and effective intervention's use rate. Results A total of 552 women with life-threatening conditions were identified: 518 with SMM, 34 with MM. Identification criteria for SMM were case-management (48.9%), organ dysfunction (15.2%) and mixed criteria (35.9%). Incidence of SMM was 0.8% (95% confidence interval [95% CI] 0.73-0.87%) and hospital maternal death ratio was 52.3 per 100 000 live births (95% CI 35.5-69.1). Main causes of MM were abortion complications and puerperal sepsis; main causes of SMM were postpartum haemorrhage and hypertension. Overall case-fatality rate was 6.2% (95% CI 4.4-8.6): the highest due to sepsis (14.8%) and abortion complications (13.3%). Morbidity-mortality index was 15:1 (95% CI 7.5-30.8). Use rate of known effective interventions to prevent or treat main causes of MM and SMM was 52.3% (95% CI 46.9-57.7). Conclusions This study describes the importance of life-threatening obstetric complications that took place in public hospitals with comprehensive obstetric care and the low utilisation of known effective interventions that may decrease rates of SMM and MM. It also provides arguments that justify the need to develop a surveillance system for SMM. [ABSTRACT FROM AUTHOR]

The predominant circulating HIV-1 strains in South America are subtype B and B/F recombinants with different distributions among countries. However, the emergence of other subtypes is a matter of concern and needs continuous monitoring. We identified three different A/G recombinants in Argentina, two of them in vertically infected children from unlinked mothers and one in an adult female. HIV-1 pol sequences from the children showed novel A/G recombination patterns and no phylogenetic relationship with previously reported South American A/G sequences. The third A/G recombinant was a CRF06&#95;cpx with African origin. The detection of new or unusual subtypes is important to avoid false-negative PCR HIV-1 early diagnosis due to detection failures and for future vaccine development.

Objective: To evaluate the effectiveness of 200 mg of daily vaginal natural progesterone to prevent preterm birth in women with preterm labour., Design: Multicentre, randomised, double-blind, placebo-controlled trial., Setting: Twenty-nine centres in Switzerland and Argentina., Population: A total of 385 women with preterm labour (24(0/7) to 33(6/7) weeks of gestation) treated with acute tocolysis., Methods: Participants were randomly allocated to either 200 mg daily of self-administered vaginal progesterone or placebo within 48 hours of starting acute tocolysis., Main Outcome Measures: Primary outcome was delivery before 37 weeks of gestation. Secondary outcomes were delivery before 32 and 34 weeks, adverse effects, duration of tocolysis, re-admissions for preterm labour, length of hospital stay, and neonatal morbidity and mortality. The study was ended prematurely based on results of the intermediate analysis., Results: Preterm birth occurred in 42.5% of women in the progesterone group versus 35.5% in the placebo group (relative risk [RR] 1.2; 95% confidence interval [95% CI] 0.93-1.5). Delivery at <32 and <34 weeks did not differ between the two groups (12.9 versus 9.7%; [RR 1.3; 95% CI 0.7-2.5] and 19.7 versus 12.9% [RR 1.5; 95% CI 0.9-2.4], respectively). The duration of tocolysis, hospitalisation, and recurrence of preterm labour were comparable between groups. Neonatal morbidity occurred in 44 (22.8%) cases on progesterone versus 35 (18.8%) cases on placebo (RR: 1.2; 95% CI 0.82-1.8), whereas there were 4 (2%) neonatal deaths in each study group., Conclusion: There is no evidence that the daily administration of 200 mg vaginal progesterone decreases preterm birth or improves neonatal outcome in women with preterm labour., (© 2014 Royal College of Obstetricians and Gynaecologists.)

Objective: To analyse life-threatening obstetric complications that occurred in public hospitals in Argentina., Design: Multicentre collaborative cross-sectional study., Setting: Twenty-five hospitals included in the Perinatal Network of Buenos Aires Metropolitan Area., Population: Women giving birth in participating hospitals during a 1-year period., Methods: All cases of severe maternal morbidity (SMM) and maternal mortality (MM) during pregnancy (including miscarriage and induced abortion), labour and puerperium were included. Data were collected prospectively., Main Outcome Measures: Identification criteria, main causes and incidence of SMM; case-fatality rates, morbidity-mortality index and effective intervention's use rate., Results: A total of 552 women with life-threatening conditions were identified: 518 with SMM, 34 with MM. Identification criteria for SMM were case-management (48.9%), organ dysfunction (15.2%) and mixed criteria (35.9%). Incidence of SMM was 0.8% (95% confidence interval [95% CI] 0.73-0.87%) and hospital maternal death ratio was 52.3 per 100 000 live births (95% CI 35.5-69.1). Main causes of MM were abortion complications and puerperal sepsis; main causes of SMM were postpartum haemorrhage and hypertension. Overall case-fatality rate was 6.2% (95% CI 4.4-8.6): the highest due to sepsis (14.8%) and abortion complications (13.3%). Morbidity-mortality index was 15:1 (95% CI 7.5-30.8). Use rate of known effective interventions to prevent or treat main causes of MM and SMM was 52.3% (95% CI 46.9-57.7)., Conclusions: This study describes the importance of life-threatening obstetric complications that took place in public hospitals with comprehensive obstetric care and the low utilisation of known effective interventions that may decrease rates of SMM and MM. It also provides arguments that justify the need to develop a surveillance system for SMM., (© 2013 RCOG.)

Background: To describe an accurate approach, hemostatic procedures and uterine repair in patients with anterior placenta percreta., Methods: A total of 68 patients with anterior placenta percreta were included. A large retrovesical and parametrial dissection was performed in all cases. Hemostasis was achieved with selective vascular ligature or with surgical myometrial compression. The anterior wall defect was repaired using a myometrial suture, fibrin glue and polyglycolic mesh. Finally, a nonadherent cellulose layer was applied over this reconstruction. Hysteroscopy and T2 magnetic resonance imaging (MRI) were performed as a reconstruction control at 90 days after discharge., Results: Elective surgery was performed in 49 patients and emergency surgery in 19. In 59 midline incisions were performed and in nine lower transverse incisions. Forty-nine patients underwent fundal hysterotomy and 19 transplacental segmental uterine approaches. The uteri of 50 patients with anterior placenta percreta were repaired. Of the 18 hysterectomies performed in this series, 16 were indicated due to massive destruction and two were secondary to coagulopathies. The following surgical complications developed: pelvic hemorrhage (one), coagulopathies (two), uterine infection (three), low ureteral ligations (two), iatrogenic foreign bodies (two) and collection (three). Uterine conservation was highly significant between the upper and lower invasion areas. Ten pregnancies were reported after the repair, resulting in uncomplicated cesarean delivery., Conclusion: This approach has allowed an adequate uterine repair in patients with anterior placenta percreta. Based on these results it is valid to assume that a functional and anatomic uterine repair has been successfully performed.