aortic pseudocoarctation

Full Definition

Aortic pseudocoarctation is a congenital anomaly characterized by elongation and kinking of the aortic arch, typically at the ligamentum arteriosum level, without creating significant hemodynamic obstruction across the narrowed segment. Unlike true coarctation, pseudocoarctation does not produce a pressure gradient between the upper and lower extremities. This condition may be associated with other cardiac anomalies and can present diagnostic challenges on imaging studies, requiring careful differentiation from true coarctation through hemodynamic assessment.

Usage

Usage note: Emphasize absence of hemodynamic significance to distinguish from true coarctation.

In Context

• "Cross-sectional imaging revealed aortic pseudocoarctation with characteristic kinking but no pressure gradient." — cardiology consultation
• "The patient's hypertension workup excluded pseudocoarctation as a contributing factor given normal arm-leg pressure indices." — diagnostic workup report