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36th Annual Scientific Meeting of the Canadian Pain Society: Abstracts

ABSTRACT: A full-text version of the abstracts to be presented at the 36th Annual Scientific Meeting of the Canadian Pain Society is published online only. To view the full-text abstracts, go to www.pulsus.com

SUBMITTER: Tracey I

PROVIDER: S-EPMC4447163 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature

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Project description:BACKGROUND: Current resuscitation guidelines recommend 3:1 Compression:Ventilation (C:V) ratio, however the most effective C:V ratio in newborns remains controversial. We recently demonstrate that if chest compressions (CC) are superimposed by sustained inflations (SI) return of spontaneous circulation (ROSC) and mortality are improved in asphyxiated newborn piglets when compared to standard coordinated 3:1 resuscitation. However, this has not been studied in newborns. OBJECTIVES: To determine if CC superimposed with SI impacts ROSC in infants <33 weeks with bradycardia or asystole compared to coordinated 3:1 C:V resuscitation. DESIGN/METHODS: In a pilot study, infants born <33 weeks gestational age with an heart rate <60/min or asystole were randomized to receive either “3:1 C:V” or “SS+CC”. Infants randomized to 3:1 received coordinated CC and ventilation according to the current resuscitation guidelines. Infants randomized to “SI+CC” received uninterrupted CC at a rate of 90/min superimposed by a SI of 30 sec. The default settings for airway pressures were peak inflation pressure of 24 cm H2O and a positive end expiratory pressure of 6 cm H2O. The primary outcome was duration of CC to achieve ROSC. Deferral of consent was approved by the institutional ethics committee. The trial was registered at ClinicalTrials.gov: NCT02083705. RESULTS: Five infants were randomized to each group; the mean (range) gestational age was 25 (24–27) weeks vs. 26 (23–28) weeks in the in the SI+CC and 3:1 group (P=0.433), respectively. Mean (SD) birth weight in the SI+CC group was 797 (208) g vs. 808 (182) g in the 3:1 group, (P=0.465) respectively. Mean (SD) ROSC was significantly decreased in the SI+CC group with 31 (8) sec vs. 138 (72) sec in the 3:1 group (P=0.011). One infant in each group died and only one infant in the 3:1 group received epinephrine. One infant in the SI+CC group and three in the 3:1 had intracranial hemorrhage grade 3 or greater. Three infants in the SI+CC group had necrotizing enterocolitis vs. one infant in the 3:1 group (P=0.197). CONCLUSION: Preterm infants <33 weeks had significant shorter ROSC when CC were superimposed by SI compared to using 3:1.

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36th Annual Scientific Meeting of the Canadian Pain Society: Abstracts

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