The present study indicates that NO does not induce migraine by liberating CGRP. The most likely explanation for our findings is that CGRP has its effect higher than NO in the cascade of events leading to MO attacks.

Background: Treatment of acute respiratory distress syndrome (ARDS) in children is largely based on extrapolated knowledge obtained from adults and which varies between different hospitals. This study explores ventilation treatment strategies for children with ARDS in the Nordic countries, and compares these with international practice. Methods: In October 2012, a questionnaire covering ventilation treatment strategies for children aged 1 month to 6 years of age with ARDS was sent to 21 large Nordic intensive care units that treat children with ARDS. Pre-terms and children with congenital conditions were excluded. Results: Eighteen of the 21 (86%) targeted intensive care units responded to the questionnaire. Fifty per cent of these facilities were paediatric intensive care units. Written guidelines existed in 44% of the units. Fifty per cent of the units frequently used cuffed endotracheal tubes. Ventilation was achieved by pressure control for 89% vs. volume control for 11% of units. Bronchodilators were used by all units, whereas steroids usage was 83% and surfactant 39%. Inhaled nitric oxide and high frequency oscillation were available in 94% of the units. Neurally adjusted ventilator assist was used by 44% of the units. Extracorporeal membrane oxygenation could be started in 44% of the units. Conclusion: Ventilation treatment strategies for paediatric ARDS in the Nordic countries are relatively uniform and largely in accordance with international practice. The use of steroids and surfactant is more frequent than shown in other studies.

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