Vacuum assisted deliveries present a higher rate of LAM avulsion, as well as a greater increase in levator hiatal area than in NVD.

We have observed that the presence of an AoP with pushing <105°, a PD <25 mm, a "head-down" direction and a >45° MLA are very unfavorable ITU parameters which can be used to identify cases of high risk of fetal extraction failure in vacuum-assisted deliveries.

We identified that the presence of an AoP-Pushing > 128° predicts an Easy-Vacuum-Delivery (≤3 Vacuum-Pulls) in >85% of cases (Sen 80%-FPR 9.3%).

From 12 + 6 weeks of gestation onwards, a complete fetal morphological evaluation can be performed in 63.8% of cases following the routine midtrimester fetal ultrasound scan recommendations (ISUOG's 20 weeks scan).

Diseño de un ECOE para evaluar habilidades clínicas en neurología 249 Conclusiones: El ECOE permite evaluar las habilidades clínicas de forma planificada. Los elementos fundamentales para su diseño son: el comité de examen, tabla de especificaciones, diseño de estaciones y logística del examen.