PDAs in Term Infants: Patho, Presentation, & Symptoms of a Right-to-Left Shunt

Hi friends! In this video we are going to talk about the presentation of a patent ductus arteriosus (PDA) in a term neonate. We are going to discuss this using a persistent pulmonary hypertension of the newborn (PPHN) picture to give us some context. We will start with some simplified cardiac anatomy and physiology, discuss some of the differences we see in utero, and then talk about blood flow through the heart when pulmonary pressures remain inappropriately elevated after birth. We’ll finish up by reviewing some of the ways that pulmonary pressures can be lowered as well as the symptoms, diagnosis, and treatment of a right-to-left shunt in a term infant. My hope is that this simplified framework can serve as the foundation for you to add detail into later!
00:00 Welcome!
01:27 PPHN Presentation
02:04 The Heart, Simplified
03:33 Blood Flow In Utero
05:22 When the PDA Stays Open
05:57 What Causes Lung Pressures to Drop In Term Babies?
07:21 Pre-Ducal & Post-Ducal Oxygen Saturation Changes
08:46 PPHN Treatment: Reversing the Right-to-Left Shunt
09:19 Manifestation, Symptoms, & Diagnosis
10:20 Bringing it all Together
Miss the previous video? Learn about the presentation of a PDA in a preterm neonate here! • PDAs in Preemies: Path...
Ready to start studying for the CCRN-Neonatal exam? Check out what I did to study and pass! • What I Did to Study fo...
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I’m Anna and I am a critical care registered nurse. I have worked in the NICU, PICU, pediatric floor, and on my hospital’s critical care children’s transport service. I am also a nursing instructor and love teaching students and new nurses!
Disclaimer: This video is intended for educational purposes only and is not indented as medical advice. While I strive for 100% accuracy, errors may occur and practices may change over time.

[@xboxfullauto1000]

I'm a new grad starting my first job in a level IV NICU soon. This video was incredibly helpful! It's also incredibly well edited! Thank you for making these videos!

[@valeriepaigeee]

This was such a great video. I was struggling with this patho for awhile!