Pseudocoarctation as cause of a refractory hypertension

Area of Science:

• Cardiovascular Medicine
• Medical Diagnostics
• Clinical Case Reports

Background:

• Pseudocoarctation of the aorta is a congenital anomaly characterized by a localized narrowing of the descending aorta at the aortic isthmus.
• Unlike true coarctation, pseudocoarctation typically does not involve a significant pressure gradient across the narrowed segment.
• It is often an incidental finding or associated with other cardiovascular abnormalities.

Observation:

• This report details a rare case of pseudocoarctation of the aorta presenting with severe, refractory hypertension.
• The patient exhibited symptoms indicative of significantly elevated blood pressure that did not respond to standard antihypertensive therapies.
• Diagnostic imaging confirmed the presence of a stenotic pseudocoarctation, implying a functional impact despite the absence of a typical pressure gradient.

Findings:

• A stenotic pseudocoarctation of the aorta was identified as the underlying cause of the patient's severe hypertension.
• The anatomical abnormality, despite not being a true coarctation, was functionally significant enough to induce a hypertensive state.
• This finding challenges the traditional understanding that pseudocoarctation is hemodynamically insignificant.

Implications:

• This case underscores the importance of considering pseudocoarctation of the aorta in the differential diagnosis of severe, unexplained hypertension, particularly in younger individuals.
• It suggests that even without a pressure gradient, stenotic pseudocoarctation can lead to significant clinical consequences requiring specific management strategies.
• Further research into the pathophysiology and long-term outcomes of functionally significant pseudocoarctation is warranted to optimize patient care.