Perinatal death in the Nordic countries in relation to gestational age: The impact of registration practice.

Introduction: Although perinatal death rates in the Nordic countries are among the lowest in the world, the risk of perinatal death is unevenly distributed across the Nordic countries, despite similarity in health care systems and pregnancy care. Birth registration practices across countries may explain some of the differences. We investigated differences in national registration of perinatal mortality within the Nordic countries and its impact on perinatal mortality according to gestational age.

Incidence of shoulder dystocia and risk factors for recurrence in the subsequent pregnancy-A historical register-based cohort study.

Introduction: Shoulder dystocia is a rare obstetric complication, and the risk of recurrence is important for planning future deliveries.

Material And Methods: The objectives of our study were to estimate the incidence and risk factors for recurrence of shoulder dystocia and to identify women at high risk of recurrence in a subsequent vaginal delivery. The study design was a nationwide register-based study including data from the Danish Medical Birth Registry and National Patient Register in the period 2007-2017.

Placental weight percentile curves in a Danish population.

Introduction: The role of the placenta is to transport oxygen and nutrients to the fetus, and a well-functioning placenta is vital to fetal health. Our aim was to develop placental weight percentile curves adjusted by gestational age, and stratified by major maternal comorbidities.

Material And Methods: The study was a population study in a Danish cohort.

Winter, spring, summer or fall: temporal patterns in placenta-mediated pregnancy complications-an exploratory analysis.

Purpose: Placenta-mediated pregnancy complications, like growth restriction and hypertensive disorders, are leading causes of maternal, fetal and neonatal morbidity and mortality in high-income countries. The purpose was to investigate if there is a seasonal variation in placenta-mediated pregnancy complications (small for gestational age, intrauterine growth restriction, preeclampsia, preterm birth and intrauterine fetal death).

Methods: This is a Danish cohort study including all singleton deliveries at gestational week 22 up to and including week 41 conceived from December 2006 to November 2016 (N = 555,459).

Women's experiences of induction of labour with misoprostol tablets compared with vaginal insert.

Introduction: The aim of this study was to compare nulliparous women's experiences with induction of labour using two different regimens of misoprostol.

Methods: We adapted a validated questionnaire regarding experience with induced labour. In two different hospitals, 123 women undergoing medical induction of labour completed a questionnaire after delivery.

Incidence of postpartum hemorrhage and risk factors for recurrence in the subsequent pregnancy.

Purpose: To assess incidence and risk factors for postpartum hemorrhage (PPH) and identify women at high risk of recurrence in the subsequent pregnancy.

Methods: This register-based study includes data on women from the Capital Region of Denmark with two consecutive deliveries recorded in the Copenhagen Obstetric Database from 2007 to 2020. PPH, defined as a blood loss of 1000 mL or more within 24 h after delivery, was the primary outcome measure.

Validation of ATS clinical practice guideline cut-points for FeNO in asthma.

Background: The American Thoracic society (ATS) has suggested using fractional exhaled nitric oxide (FeNO) to monitor the level of eosinophilic (EOS) airway inflammation in asthma, but validation of the proposed cut-points is required in real-life populations.

Objective: To validate FeNO cut-points suggested by ATS in relation to sputum EOS count in a real life population of asthma patients.

Methods: All patients referred consecutively over a 12-months period for specialist assessment of asthma, were examined with FeNO and induced sputum, and re-examined 12 months later.

The impact of dysfunctional breathing on the assessment of asthma control.

Background And Objective: Dysfunctional breathing (DB) is a respiratory disorder, which involves a pattern of breathing too deeply, too superficially and/or too rapidly. In asthma patients, DB may lead to an overestimation of the severity of asthma symptoms, and hence potentially to overtreatment. However, it is not known to which degree DB may affect estimates of asthma control, in a specialist clinical setting.