Ali N, Lam T, Gray MM, et al. - Approximately 10-times higher incidence of cardiopulmonary resuscitation (CPR) is reported in quaternary NICU compared with the delivery room. Researchers conducted a multicenter retrospective cohort study of four quaternary NICUs over 6 years (2011–2016) with the aim to determine if demographic characteristics, diagnoses, interventions, and arrest etiologies are associated with survival to discharge after CPR. Admission of a total of 17,358 patients was observed to the four NICUs. Among these patients, a CPR event occurred in 200 (1.1%) patients, 45.5% of whom survived to discharge. Acute respiratory compromise on a ventilator was identified to be the most common etiology of arrest. Outcomes were favorable in correlation with CPR events with respiratory etiology compared with non-respiratory causes.