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. 2020 Nov 19;8:573627. doi: 10.3389/fped.2020.573627

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Copyright © 2020 Singh, Fraisse, Erdeve and Atasay.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Doppler assessment of blood flow in descending aorta (post-ductal flow). (A) Showing forward blood flow during disatole; and (B) showing retrograde blood flow during diastole indicating “ductal steal” in presence of a large PDA.