期刊
FETAL DIAGNOSIS AND THERAPY
卷 48, 期 11-12, 页码 819-828出版社
KARGER
DOI: 10.1159/000520449
关键词
Aortic coarctation; Fetal echocardiography; Isthmus-to-ductal ratio; Prenatal prediction; Gestational age
The study aimed to quantify the diagnostic accuracy of predictive anatomical factors of aortic coarctation (CoA) and design a postnatal CoA probability algorithm according to gestational age (GA) in prenatal period. The I/D ratio provided the best discrimination between healthy fetuses and those with CoA, with specific algorithms according to GA improving prenatal prediction accuracy for CoA. Using a serial testing strategy, the study achieved a high classification capacity for high or low probability of postnatal CoA.
Objectives: The aim of the study was first to quantify the diagnostic accuracy of predictive anatomical factors of aortic coarctation (CoA) and second to design a postnatal CoA probability algorithm according to gestational age (GA) in prenatal period. Methods: Global and according to GA diagnostic performance of cardiac anatomical variables using the ROC curve were evaluated in a retrospective cohort of fetuses with suspicion of CoA (2004-2020). A serial testing strategy to predict postnatal CoA by fetal echocardiography was designed. Results: 114 fetuses were included. Isthmus-to-ductal (I/D) ratio provided the best discrimination between healthy fetuses and those with CoA (AUC 0.91, 95% CI: 0.86-0.96, I/D < 0.74 sensitivity 96.3%, I/D < 0.6, specificity 92.5%) with good classification capacity in both the second and third trimesters of gestation. Isthmus z-score and pulmonary/aortic valve ratio increased accuracy in fetuses >28 and tricuspid/mitral valve ratio (TV/MV) in fetuses <= 28 weeks. Study of I/D plus TV/MV ratio in fetuses <= 28 and I/D ratio plus isthmus z-scores in fetuses >28 weeks allowed to correctly classify 91.8% of fetuses as high or low probability of postnatal CoA. Conclusions: Diagnostic discrimination of anatomic predictive factors for CoA varies according to GA. Specific algorithms according to GA increase accuracy in CoA's prenatal prediction.
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