Journal of Cardiovascular Ultrasound  2006;14(2):60-62

A Case of Prosthetic Valve Dysfunction in the Aortic Position: Caused by Pannus Formation.

Sung Uk KWON 1 ; Seung Woo PARK ; Soo Jin CHO ; Jeong Hoon YANG ; Sang Chol LEE ; Pyo Won PARK

Affiliations

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Keywords

Pannus formation; Prosthetic valve dysfunction

Country

Republic of Korea

Language

Korean

Abstract

Prosthetic valve dysfunction caused by pannus formation is an infrequent but serious complication of heart valve replacement. Although the precise mechanisms of the pannus formation are not clearly understood, it is considered to be the result of a bioreaction to the mechanical prosthesis. Prosthetic valve design, surgical techniques, infection, and inadequate anticoagulation also contribute to the pannus formation. In this report, we present one patients who had undergone aortic valve replacement(AVR) with the 20-mm Medtronic Hall prosthetic valve and underwent repeated AVR due to pannus ingrowth in the late postoperative period.