OUTCOME OF PRETERM INFANTS AFTER DELIVERY ROOM CARDIOPULMONARY RESUSCITATION. A RETROSPECTIVE OBSERVATIONAL STUDY
Abstract BACKGROUND Chest compression in the delivery room (CPR-DR) during neonatal resuscitation is considered as an extreme measure. When respiratory support alone is unable to establish circulatory transition, chest compression with or without epinephrine is necessary. The results of earlier studies have shown varied results in mortality and morbidity of preterm infants who received CPR-DR. OBJECTIVES To examine the relationship between need of CPR-DR in infants born between 23 and 32 weeks gestation and neonatal mortality and morbidity. DESIGN/METHODS This was a population-based cohort study of 23 0/7 to 32 6/7 weeks gestational age infants born at a Canadian tertiary care hospital between January 1, 2007 and December 31, 2016. Data were retrieved from the Neonatal-Perinatal database. Neonatal mortality and morbidities were examined between infants who did and did not need CPR-DR. RESULTS Of 1443 newborns meeting study criteria, 55 (3.8%) received CPR-DR. On bivariate analysis, outcome of infants requiring CPR-DR was associated with higher mortality (40% vs. 5.8%, p <0.001), intraventricular hemorrhage grade 3 or 4 (21.8% vs. 6.1%, p <0.001), patent ductus arteriosus (54.5% vs. 27.7%, p<0.001), bronchopulmonary dysplasia (35.4% vs. 19.6%, p=0.007), need of mechanical ventilation (90.9% vs. 61.1%, p<0.001) and sepsis (23.6% vs. 13.5%, p=0.034). However, in a multivariable logistic regression analysis controlling for predictor variables, CPR-DR was only associated with increased neonatal mortality (aOR=4.41 p<0.001, 95%CI [2.18, 8.92]). CONCLUSION While CPR-DR is associated with a high mortality rate in infants less than 32 weeks gestation, associated morbidities are largely predicted by other risk factors.