Characterization of suboptimal responses to fetoscopic endoluminal tracheal occlusion in congenital diaphragmatic hernia

Introduction: To characterize the changes in fetal lung volume following endoluminal tracheal occlusion (FETO) that are associated with infant survival and need for extracorporeal membrane oxygenation (ECMO) in congenital diaphragmatic hernia (CDH). Methods: Fetuses with CDH who underwent FETO at a single institution were included. CDH cases were reclassified by MRI metrics, [observed-to-expected total lung volume (O/E TLV) and percent liver herniation]. The percent changes of MRI metrics after FETO were calculated. ROC-derived cutoffs of these changes were derived to predict infant survival to discharge. Regression analyses were done to determine the association between these cutoffs with infant survival and ECMO need, adjusted for site of CDH, gestational age at delivery, fetal sex, and CDH severity. Results: Thirty CDH cases were included. ROC analysis demonstrated that post-FETO increases in O/E TLV had an area under the curve of 0.74 (p=0.035) for the prediction of survival to hospital discharge; a cutoff of less than 10% was selected. Fetuses with a
Source: Fetal Diagnosis and Therapy - Category: Perinatology & Neonatology Source Type: research