Prevention of obstetric anal sphincter injuries with perineal support and lateral episiotomy: A historical cohort study.

Introduction: There are many risk factors for obstetric anal sphincter injury (OASIS) and the interaction between these risk factors is complex and understudied. The many observational studies that have shown a reduction of OASIS rates after implementation of perineal support have short follow-up time. We aimed to study the effect of integration of active perineal support and lateral episiotomy on OASIS rates over a 15-year period and to study interactions between risk factors known before delivery.

A more liberal approach towards induction of labour in prolonged pregnancy does not result in an adverse labour outcome.

Introduction: Discussions among Norwegian obstetricians on how to handle prolonged pregnancies have been ongoing throughout the past decade. In 2011, the Norwegian Directorate of Health recommended a specialist care consultation one week after the estimated date of delivery, implying prompt induction of labour in women at risk. The aim of this study was to compare an expectant management with a more liberal approach towards induction of labour, and to assess how the women responded to these recommendations.

Assessing the association of oxytocin augmentation with obstetric anal sphincter injury in nulliparous women: a population-based, case-control study.

Objective: To assess the association of oxytocin augmentation with obstetric anal sphincter injury among nulliparous women.

Design: Population-based, case-control study.

Setting: Primary and secondary teaching hospital serving a Norwegian region.

Maternal deaths in Norway 2005-2009.

Background: Norway has low maternal mortality, but such deaths are underreported even in high-income countries. Our goal was to identify the exact number of maternal deaths, the causes of death and the potential for improvement through medical care in Norway.

Material And Method: We traced maternal deaths in the period from 1 January 2005 to 31 December 2009 by linking the Medical Birth Registry and the Cause of Death Registry, supplemented with data from maternity clinics.