The optic chiasm (OC) is an X-shaped structure formed by the crossing of the optic nerves in an axial view of the fetal brain. It is located in the chiasmatic cistern and it is surrounded by the Willis circle. The anterior cerebral arteries lay anteriorly, the posterior communicant arteries lay laterally and the posterior cerebral arteries are identified posteriorly. The decussation or centre of the OC corresponds to the origin of the middle cerebral arteries laterally arising from internal carotids. This article is protected by copyright. All rights reserved.

There are circumstances in the management of thromboembolic events during pregnancy when anticoagulant therapy is either contraindicated or not advisable, such as when pulmonary embolism (PE) or deep venous thrombosis is diagnosed close to term, given the risk of bleeding during delivery. In these cases, the thromboembolic risk can be controlled using temporary inferior vena cava filters (T-IVCFs). We present the case of a pregnant woman with thrombophilia who remained at rest for eight weeks due to an amniotic prolapse and for whom the placement of a T-IVCF was decided at 32 weeks' gestation after anticoagulant therapy had failed. An emergency caesarean section was performed at 33 weeks' gestation due to placental abruption following the spontaneous onset of preterm labour. The risk of bleeding during delivery when high doses of heparin are used, and the risk of PE when the heparin dose is decreased, needs to be evaluated versus the risks related to T-IVCF placement procedure and, as such, a review of the published experience in this field is warranted. We have concluded that T-IVCFs can be a safe alternative treatment for pregnant women in whom anticoagulation therapy is either contraindicated or not advisable.

Vulvovaginal infections are a public health problem that accounts for 20% of gynecological consultations. However, Javier García Pérez-Llantada et al.: Single-pathogen and Mixed Vulvovaginal Infections Among Women of Reproductive Age Consulting Gynecologists: A Cross-Sectional Study spectrum of antimycotic and antimicrobial activity is an adequate alternative for women.

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Electronic poster abstractsResults: Neuropathological correlation was available in 20/24 fetuses. In 9 fetuses, antenatal measurements were normal. Neuropathological examination confirmed normal findings in all 8 cases in which full autopsy was performed. Among 14 fetuses with abnormal intracranial findings, postmortem sonography was inconclusive in one fetus which had undergone cephalocentesis prior to delivery. Three patients declined autopsy, but consented to post-mortem sonography. Using paired samples t-test, there was a significant change in size of the lateral ventricles LV between prenatal and postmortem scans (t = −4.5, df = 22, p = 0.0002). The average difference from (post -pre) was −3.5 (95% CI = −5.1 to −1.9), suggesting that postnatal scans showed smaller LV measurements than prenatal. Conclusions: Corroboration of antenatal sonographic findings of ventriculomegaly is difficult because of immediate postmortem reduction in ventricular size. This information may be useful in counselling families in which autopsy findings do not confirm antenatal diagnosis. P03.08The influence of gender on fetal ventricular size: a 3D ultrasonographic study