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Objectives To assess whether late surfactant treatment of extremely low gestational age newborn (ELGAN) infants requiring ventilation at 7–14 days, who often have surfactant deficiency and dysfunction, safely improves survival without bronchopulmonary dysplasia (BPD). Study design ELGAN infants (≤ 28 0/7 weeks) who required mechanical ventilation at 7–14 days were enrolled in a randomized, masked controlled trial at 25 US centers. All infants received inhaled nitric oxide (INO) and either surfactant (calfactant/Infasurf®) or sham instillation every 1–3 days to a maximum of 5 doses while intubated. The primary outcome was survival at 36 weeks postmenstrual age (PMA) without BPD, evaluated by physiologic oxygen/flow reduction. Results Between January 2010 and September 2013, 511 infants were enrolled. There were no differences between treatment groups in mean birth weight (701±164 g), gestational age (25.2±1.2 weeks), percentage <26 weeks (70.6%), race, sex, severity of lung disease at enrollment, or co-morbidities of prematurity. Survival without BPD was not different between treated vs. controls at 36 weeks PMA (31.3% vs. 31.7%; relative benefit 0.98 (95% CI: 0.75, 1.28 p=0.89) or 40 weeks (58.7% vs. 54.1%; relative benefit 1.08:0.92, 1.27 p=0.33). There were no differences between groups in serious adverse events, co-morbidities of prematurity, nor in the severity of lung disease to 36 weeks. Conclusions Late treatment with up to 5 doses of surfactant in ventilated premature infants receiving iNO was well tolerated but did not improve survival without BPD at 36 or 40 weeks. Pulmonary and neurodevelopmental assessments are ongoing.

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BackgroundStage-3 chronic kidney disease (CKD) is the first stage that is identifiable from a blood test alone. In the UK, it accounts for the majority of people on primary care CKD registers. It also represents a group of people who, in the past, would have gone unnoticed clinically. In order to support patients and plan services, the natural history of stage-3 CKD is important. AimTo systematically review the natural history of stage-3 CKD in order to describe all cause mortality, cardiovascular morbidity and mortality, and renal outcomes. Design of studySystematic review of the literature. MethodMEDLINE and Embase databases were searched from 1998 to February 2009. Systematic reviews and cohort studies that included adults with stage-3 CKD were considered eligible. Studies were appraised and data extracted by one reviewer and checked by a second.

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