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Joseph Junewick, MD FACR
over 10 years ago
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Aortic dissection

Case Detail

Anatomy: Vascular-Lymphatic
Joseph Junewick, MD FACR
Diagnostic Category: Trauma
Created: over 11 years ago
Updated: over 11 years ago
Tags: PEDS
Modality/Study Types: US
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Premature infant with diminished lower extremity pulses.

Case Images


Aortic dissection secondary to umbilical artery catheter.

Clinical Notes

Recent umbilical artery catheter placement.


Mural thickening and increased echogenicity of the infrarenal aorta with resultant luminal narrowing.


While improved catheter construction and placement techniques have improved, catheter complications remain real and can be especially significant in fragile premature newborns. Complications of umbilical catheters include infection, thrombosis and vascular injury. Vascular injury can result in dissesction, pseudoaneurym formation, end-organ ischemia and vessel rupture. In this case, disruption of the intima led to separation of the intima and media by exposure to pressurized blood giving rise to an intramural hematoma and luminal narrowing.

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