Application of a Global Multiparameter Scoring System for the Prenatal Prediction of Coarctation of the Aorta
JOURNAL OF CLINICAL MEDICINE(2021)
Abstract
To assess prospectively the capability of our previously reported global multiparameter scoring system to predict coarctation of the aorta (CoAo) in fetuses with cardiac asymmetry, we applied and analyzed the performance of our scoring system in predicting postnatal CoAo in fetuses undergoing prenatal echocardiographic assessment because of cardiac asymmetry between 2011 and 2021, and we determined the cut-off points of the score with the best balance between specificity and sensitivity, and of maximum sensitivity and specificity. CoAo was confirmed in 39/179 newborns (21.8%). We found a significantly higher probability of CoAo in fetuses with CoAo than in cases without CoAo (84.2 +/- 18.2% vs. 26.0 +/- 28.6%, p < 0.001). The AUC of the ROC of the score was 0.93 (95% CI 0.89-0.97). The cut-off value with the best balance between specificity and sensitivity was a predicted risk of >= 53% (sensitivity 92.3% and specificity 80.0%). The cut-off point of maximum sensitivity was >= 35% (sensitivity 100% and specificity 72.9%), and that of maximum specificity was >= 96% (sensitivity 43.6% and specificity 96.4%). In none of the fetuses with a probability of CoAo < 35% was this condition confirmed after birth. This occurred in 102 fetuses in the whole study population (57%) and in 84 of the 111 in whom CoAo was suspected beyond 28 weeks (75.7%). This multiparameter score allows an adequate discrimination between fetuses without CoAo and those with CoAo, reducing the false positive diagnoses in cardiac asymmetry.
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Key words
congenital heart disease,fetal echocardiography,coarctation of the aorta,prediction,z-score,multiparameter score
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