Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed
Etiology/Pathophysiology:
Persistent or recurrent pulmonary artery hypertension with right to
left shunting through a patent foramen ovale and patent ductus
arteriosus in a patient with pulmonary disease. Factors that increase
pulmonary vascular resistance include acidosis, hypoglycemia,
hypothermia, and polycythemia.
Pathology:
Not applicable.
Imaging Findings:
The CXR may be normal or can show changes of the underlying lung
disease such as hyaline membrane disease, meconium aspiration
syndrome, etc. A slightly enlarged heart may be seen along with
slightly decreased pulmonary vascularity.
DDX:
Not applicable.
References:
See References Chapter.
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