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Updated: Jul 18, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
Intermittent acute aortic valve regurgitation: a case report of a prosthetic valve dysfunction
Stefanos E Karagiannis1, G Karatasakis, K Spargias
1First Department of Cardiology, Onassis Cardiac Surgery Centre, 356 Sygrou Avenue, 17674 Athens, Greece. stefkarag@yahoo.gr
Abstract:
Complications of any mechanical prosthesis include thrombus or pannus formation. In our case report we demonstrate that prosthetic aortic valve regurgitation due to pannus formation may be intermittent and non-cyclic in pattern and therefore not obvious at the time of original clinical examination. Under these conditions and as transesophageal echocardiography cannot be repeated promptly, transthoracic 2-D and Doppler echocardiography should be available at any time when symptoms occur and present the method of choice for acute patient evaluation. Thrombolysis seems to be the first treatment of choice in case of thrombus formation and re-do surgery in case of pannus formation.
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