Eur J Cardiothorac Surg 2008;33:926. doi:10.1016/j.ejcts.2008.01.057
Copyright © 2008, European Association for Cardio-thoracic Surgery. Published by Elsevier. All rights reserved.
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Pannus formation on St. Jude Medical prosthetic aortic valve 23 years after initial operation
Tadahisa Sugiura*,
Masaaki Koide,
Yoshifumi Kunii,
Nobuhiro Umehara
Department of Cardiovascular Surgery, Seirei Hamamatsu General Hospital, Shizuoka, Japan
Received 24 October 2007;
received in revised form 23 January 2008;
accepted 28 January 2008.
* Corresponding author. Address: Department of Cardiovascular Surgery, Seirei Hamamatsu General Hospital, 2-12-12, Sumiyoshi, Naka-ku, Hamamatsu-shi, Shizuoka 430-8558, Japan. Tel.: +81 53 474 2222; fax: +81 53 471 6050. (Email: ssugiura{at}hij.twmu.ac.jp).
Key Words: Pannus formation St. Jude Medical prosthetic valve
A 57-year-old woman who underwent aortic and mitral valve replacement 23 years previously, gradually developed dyspnea on exertion. Echocardiography revealed 120 mmHg of maximum pressure gradient at the left ventricular outflow tract. She underwent redo aortic valve replacement. Previous St. Jude Medical prosthetic aortic valve was covered with circumferential pannus (Fig. 1
).

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Fig. 1. Removed SJM valve; circumferential pannus extended into both on inflow (a) and outflow (b) side of the valve over the pivot guard.
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