Podcast
Questions and Answers
What is the result of excessively high PVR in persistent pulmonary hypertension (PPHN)?
What is the result of excessively high PVR in persistent pulmonary hypertension (PPHN)?
What is the consequence of lung inflation in reducing PVR?
What is the consequence of lung inflation in reducing PVR?
What suggests right-to-left shunting through the ductus arteriosus in PPHN?
What suggests right-to-left shunting through the ductus arteriosus in PPHN?
What is the pathogenesis of PPHN related to chronic fetal hypoxia?
What is the pathogenesis of PPHN related to chronic fetal hypoxia?
Signup and view all the answers
What diagnostic tool is helpful in evaluating PPHN?
What diagnostic tool is helpful in evaluating PPHN?
Signup and view all the answers
Study Notes
Persistent Pulmonary Hypertension (PPHN)
- Excessive PVR consequence: Right ventricular failure that may lead to cardiovascular collapse
- Lung inflation effect: Reduces PVR by recruiting and distending lung vessels, improving oxygenation and cardiovascular stability
Ductus Arteriosus Shunting
- Right-to-left shunting indication: Presence of differential cyanosis (lower limbs more cyanosed than upper limbs)
- Ductal shunting pathophysiology: Oxygenated blood from the aorta bypasses the lungs, deoxygenated blood from the pulmonary artery flows to the descending aorta
PPHN Pathogenesis
- Chronic fetal hypoxia effect: Increases pulmonary vascular resistance, leading to PPHN
- Fetal hypoxia mechanisms: Impairs vascularization, increases smooth muscle growth, and alters vascular reactivity
PPHN Diagnosis
- Diagnostic tool: Echocardiography, which helps evaluate cardiac anatomy, right ventricular function, and pulmonary artery pressure
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of Persistent Pulmonary Hypertension (PPHN) with this quiz. Explore the pathogenesis, right-to-left shunting through PDA and foramen ovale, and factors influencing pulmonary vascular resistance.