Key result
Emergent redo-sternotomy and bioprosthetic valve replacement successfully treated acute severe aortic regurgitation and cardiogenic shock caused by catastrophic pannus obstruction of a mechanical valve.
Case Report (n=1)
Highlights a rare case of acute severe aortic regurgitation caused by catastrophic pannus obstruction in a mechanical aortic valve, successfully treated with emergent valve replacement.
Include pannus in differentials for acute mechanical valve failure; this case report leaves open targeted surveillance strategies.
A 69-year-old woman with a mechanical aortic valve presented with decompensated heart failure. Emergent echocardiogram and fluoroscopy demonstrated acute aortic regurgitation due to a dysfunctional mechanical aortic valve and non-obstructive coronary disease. An emergent valve replacement was performed confirming a fixed-open valve with pathology demonstrating obstructive pannus formation without thrombosis or vegetation.
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Panchal et al. (2022) conducted a case report in Acute severe aortic regurgitation (n=1). Emergent redo-sternotomy and bioprosthetic aortic valve replacement was evaluated on Clinical recovery and successful valve replacement. Emergent redo-sternotomy and bioprosthetic valve replacement successfully treated acute severe aortic regurgitation and cardiogenic shock caused by catastrophic pannus obstruction of a mechanical valve.
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