Chlorhexidine gluconate is the most commonly used antiseptic in Canadian NICUs. The high number of associated adverse effects and the lack of guidelines regulating antiseptic use are of concern. Large clinical trials are urgently needed to guide practice and improve the safety of antiseptics.
IntroductionAs gestational age decreases, incidence of bronchopulmonary dysplasia (BPD) and chronic lung disease increases. There are many interventions used in the delivery room to prevent acute lung injury and consequently BPD in these patients. The availability of different treatment options often poses a practical challenge to the practicing neonatologist when it comes to making an evidence-based choice as the multitude of pairwise systematic reviews including Cochrane reviews that are currently available only provide a narrow perspective through head-to-head comparisons.Methods and analysisWe will conduct a systematic review of all randomised controlled trials evaluating delivery room interventions within the first golden hour after birth for prevention of BPD. The primary outcome includes BPD. Secondary outcomes include death at 36 weeks of postmenstrual age or before discharge; severe intraventricular haemorrhage (grade 3 or 4 based on the Papile criteria); any air leak syndromes (including pneumothorax or pulmonary interstitial emphysema); retinopathy of prematurity (any stage) and neurodevelopmental impairment at 18–24 months. We will search from their inception to August 2018, the following databases: Medline, EMBASE and Cochrane Central Register of Controlled Trials as well as grey literature resources. Two reviewers will independently screen titles and abstracts, review full texts, extract information and assess the risk of bias and the confidence in the estimate (with Grading of Recommendations Assessment, Development and Evaluation approach). This review will use Bayesian network meta-analysis approach which allows the comparison of the multiple delivery room interventions for prevention of BPD. We will perform a Bayesian network meta-analysis to combine the pooled direct and indirect treatment effect estimates for each outcome, effectiveness and safety of delivery room interventions for prevention of BPD.Ethics and disseminationThe proposed protocol is a network meta-analysis, which has been registered on PROSPERO International prospective register of systematic reviews (CRD42018078648). The results will provide an evidence-based guide to choosing the right sequence of early postnatal interventions that will be associated with the least likelihood of inducing lung injury and BPD in preterm infants. Furthermore, we will identify knowledge gaps and will encourage further research for other therapeutic options. Therefore, its results will be disseminated through peer-reviewed publications and conference presentations. Due to the nature of the design, no ethics approval is necessary.
<b><i>Background:</i></b> Fentanyl is a commonly used off-label medication for pain control and sedation in preterm infants. Yet, the effect of fentanyl on cerebral hemodynamics in preterm neonates remains unexplored. <b><i>Objective:</i></b> To evaluate the effect of a bolus dose of fentanyl on the regional cerebral oxygen saturation (RcSO<sub>2</sub>), cerebral fractional tissue oxygen extraction (cFTOE) and left ventricular output (LVO) as compared with pre-administration baseline in preterm infants. <b><i>Methods:</i></b> This was a prospective observational study conducted in a level III Canadian NICU from September 2017 to February 2019. Preterm infants born <37 weeks of gestation and scheduled to receive a fentanyl bolus (1–2 μg/kg/dose) were eligible. Infants with major congenital anomalies, medically unstable and those who had received fentanyl in the previous 48 h were excluded. <b><i>Outcomes:</i></b> The primary outcome was the difference between RcSO<sub>2</sub> measured 5 min prior to and RcSO<sub>2</sub> measured at defined time points after administration of fentanyl. <b><i>Results:</i></b> Twenty-eight infants were enrolled during the study period (median gestational age 28 weeks; interquartile range [IQR] 25–29 weeks; median birth weight 1,035 g [IQR 830–1,292 g]; median age 4 days [IQR 3–7 days]). Mean (±standard deviation) baseline RcSO<sub>2</sub> was 73.6% (±11.8), cFTOE was 21.9 (±11.2) and LVO was 380 (±147) mL/kg/min prior to fentanyl infusion. One-way ANOVA showed no statistically significant difference between baseline and any of the post-fentanyl cerebral oxygenation, tissue oxygen extraction or cardiac output measures (<i>p</i> > 0.05). <b><i>Conclusion:</i></b> Administration of fentanyl bolus for procedural pain and sedation was not shown to significantly affect cerebral oxygenation, cerebral tissue oxygen extraction or cardiac output in stable preterm infants.
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