[Show abstract][Hide abstract] ABSTRACT: To assess home oxygen use in preterm infants, identify risk factors predicting home oxygen use, and quantify the extent of institutional variation in home oxygen use across neonatal intensive care units.
We conducted a retrospective cohort analysis of surviving infants of 23- to 31-week gestational age discharged home in 2009, with de-identified electronic medical record information from the Pediatrix Clinical Data Warehouse. Mixed-effects logistic regression quantified clinical risk factors and institutional variation affecting home oxygen use.
A total of 8167 infants were identified. Home oxygen use varied by gestational age, from 59% of infants 23 to 24 weeks gestational age to 7% of infants 29 to 31 weeks gestational age. Other risk factors included small for gestational age, congenital anomalies, mechanical ventilation in the first 72 hours, fraction of inhaled oxygen >0.4 in the first 72 hours, and patent ductus arteriosus. After adjusting for clinical risk factors, there was still a 4- to 5-fold difference in institutions' odds of home oxygen use.
Home oxygen use was common in infants of earlier gestational ages and infants with more severe respiratory illness. Institutional variation accounted for 4- to 5-fold variation in home oxygen use. Families should be counseled about the likelihood of home oxygen use, and prospective research must identify optimal treatment strategies for high-risk infants.
The Journal of pediatrics 09/2011; 160(2):232-8. DOI:10.1016/j.jpeds.2011.08.033 · 4.02 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: Apnea of prematurity is one of the most common diagnoses in the NICU. Because resolution of apnea is a usual precondition for discharge from the hospital, different monitoring practices might affect length of stay for premature infants. Our objective was to compare the proportion of 33 to 34 weeks' gestational age infants diagnosed with apnea in different NICUs and to assess whether variability in length of stay would be affected by the rate of documented apnea.
This was a prospective cohort study of moderately preterm infants who survived to discharge in 10 NICUs in Massachusetts and California.
The study population comprised 536 infants born between 33 and 34/7 weeks of which 264 (49%) were diagnosed with apnea. The mean postmenstrual age at discharge was higher in infants diagnosed with apnea compared with those without apnea (36.4 ± 1.3 vs 35.7 ± 0.8; P < .001, analysis of variance). Significant inter-NICU variation existed in the proportion of infants diagnosed with apnea (range: 24%-76%; P < .001). Postmenstrual age at discharge also varied between NICUs (range: 35.5 ± 0.6 to 36.7 ± 1.5 weeks; P < .001). As much as 28% of the variability in postmenstrual age at discharge between NICUs could be explained by the variability in the proportion of infants diagnosed with apnea.
NICUs vary in the proportion of moderately preterm infants diagnosed with apnea, which significantly affects length of stay. Standardization of monitoring practices and definition of clinically significant cardiorespiratory events could have a significant impact on reducing the length of stay in moderately preterm infants.
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