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" Characterization problems in mathematical statistics / "
A.M. Kagan, Yu. V. Linnik, C. Radhakrishna Rao ; translated from Russian text by B. Ramachandran.
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Latin Dissertation
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English
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| Record Number
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897592
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TL5286550g
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| Main Entry
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Xu, Bin
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Development and Validation of ECMO Mortality-Risk Models for Congenital Diaphragmatic Hernia\ Guner, Yigit S.Cleary, JohnYu, Peter
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2017
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2017
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| Abstract
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Rationale: There are no validated bedside tools that can predict mortality risk of a neonate with CDH prior to initiation of ECMO and during the course of ECMO. Objectives: To develop ECMO specific mortality risk prediction models for CDH. Methods: The Extracorporeal Life Support Organization (ELSO) registry (2000-2015) was used to develop mortality prediction scores for CDH relative to timing of ECMO. Prediction models were developed using multivariable logistic regression models. Observed mortalities for the pre- and on-ECMO were further examined by five clinical risk groups defined by percentiles of the risk score. Results: We identified 4,374 neonates with CDH with an overall mortality of 52%. Predictive discrimination (C-statistic) for pre-ECMO mortality model was C = 0.65 (95% CI: 0.62-0.68). Within the highest risk group, based on the pre-ECMO risk score, mortality was with 87% (144 neonates) and 75% (92 neonates), in the training and validation datasets, respectively. The pre-ECMO risk score included pre-ECMO ventilator settings, pH, prior DH repair, critical congenital heart disease, perinatal infection, and demographics. For the on-ECMO model, mortality prediction improved substantially: C = 0.73 (95% CI: 0.71-0.76) with the addition of on-ECMO associated complications and comorbidities. Within the highest risk group, defined by the on-ECMO risk score, mortality was 90% (147 neonates) and 86% (77 neonates) in the training and validation datasets, respectively. The post-ECMO mortality prediction model which accounted for the timing of CDH repair post-ECMO had the best predictive discrimination with C = 0.80 (95% CI: 0.78-0.82). Conclusion: Mortality among neonates with CDH needing ECMO can be reliably predicted with validated clinical variables identified in this study relative to timing of ECMO.
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Guner, Yigit S.
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UC Irvine
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