Michelle C Starr1,2, Louis Boohaker3, Laurie C Eldredge4, Shina Menon2, Russell Griffin5, Dennis E Mayock6, Linzi Li5, David Askenazi3, Sangeeta Hingorani2. 1. Department of Pediatrics, Division of Pediatric Nephrology, Indiana University School of Medicine, Indianapolis, Indiana. 2. Department of Pediatrics, Division of Nephrology, Seattle Children's Hospital and University of Washington, Seattle, Washington. 3. Division of Pediatric Nephrology, University of Alabama at Birmingham, Birmingham, Alabama. 4. Department of Pediatrics, Division of Pulmonology, Seattle Children's Hospital and University of Washington, Seattle, Washington. 5. Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama. 6. Department of Pediatrics, Division of Neonatology, University of Washington, Seattle, Washington.
Abstract
OBJECTIVE: This study aimed to evaluate the association between acute kidney injury (AKI) and bronchopulmonary dysplasia (BPD) in infants born <32 weeks of gestational age (GA). STUDY DESIGN: Present study is a secondary analysis of premature infants born at <32 weeks of GA in the Assessment of Worldwide Acute Kidney Injury Epidemiology in Neonates (AWAKEN) retrospective cohort (n = 546). We stratified by gestational age and used logistic regression to determine association between AKI and moderate or severe BPD/mortality. RESULTS: Moderate or severe BPD occurred in 214 of 546 (39%) infants, while death occurred in 32 of 546 (6%); the composite of moderate or severe BPD/death occurred in 246 of 546 (45%). For infants born ≤29 weeks of gestation, the adjusted odds ratio (OR) of AKI and the primary outcome was 1.15 (95% confidence interval [CI] = 0.47-2.86; p = 0.76). Infants born between 29 and 32 weeks of gestation with AKI had four-fold higher odds of moderate or severe BPD/death that remained after controlling for multiple factors (adjusted OR = 4.21, 95% CI: 2.07-8.61; p < 0.001). CONCLUSION: Neonates born between 29 and 32 weeks who develop AKI had a higher likelihood of moderate or severe BPD/death than those without AKI. Further studies are needed to validate our findings and evaluate mechanisms of multiorgan injury. Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.
OBJECTIVE: This study aimed to evaluate the association between acute kidney injury (AKI) and bronchopulmonary dysplasia (BPD) in infants born <32 weeks of gestational age (GA). STUDY DESIGN: Present study is a secondary analysis of premature infants born at <32 weeks of GA in the Assessment of Worldwide Acute Kidney Injury Epidemiology in Neonates (AWAKEN) retrospective cohort (n = 546). We stratified by gestational age and used logistic regression to determine association between AKI and moderate or severe BPD/mortality. RESULTS: Moderate or severe BPD occurred in 214 of 546 (39%) infants, while death occurred in 32 of 546 (6%); the composite of moderate or severe BPD/death occurred in 246 of 546 (45%). For infants born ≤29 weeks of gestation, the adjusted odds ratio (OR) of AKI and the primary outcome was 1.15 (95% confidence interval [CI] = 0.47-2.86; p = 0.76). Infants born between 29 and 32 weeks of gestation with AKI had four-fold higher odds of moderate or severe BPD/death that remained after controlling for multiple factors (adjusted OR = 4.21, 95% CI: 2.07-8.61; p < 0.001). CONCLUSION: Neonates born between 29 and 32 weeks who develop AKI had a higher likelihood of moderate or severe BPD/death than those without AKI. Further studies are needed to validate our findings and evaluate mechanisms of multiorgan injury. Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.
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