Related Experiment Video
Updated: Feb 13, 2026

An Image Guided Transapical Mitral Valve Leaflet Puncture Model of Controlled Volume Overload from Mitral Regurgitation in the Rat
Published on: May 19, 2020
Leaflet escape in an Edwards TEKNA mitral prosthesis
Shinya Higuchi1, Iwao Matsunaga2, Kiyokazu Koga2
1Department of Cardiovascular Surgery, Shin-Yukuhashi Hospital, 1411 Dojoji, Yukuhashi, Fukuoka, 824-0026, Japan. shinhighot@hotmail.com.
Abstract:
In almost every type of artificial valve, structural failure has been described. We are reporting on a case of a sudden leaflet escape of an Edwards TEKNA mitral valve prosthesis 12 years after implantation. The patient had a sudden onset of dyspnea and severe pulmonary edema with subsequent cardiogenic shock. An emergency mitral replacement was successfully performed. A multi-detector computed tomography scanning and three-dimensional imaging showed two fragments that had embolized in the terminal aorta and the left common iliac artery. The patient presented visual field abnormality, and postoperative head computed tomography showed watershed cerebral infarction. The escaped leaflet that fractured transversely was removed, following the patient's recovery, during cardiac surgery.
Related Concept Videos
Escape Velocity
To calculate the escape velocity, it is assumed that no energy is lost to any frictional forces. In practice, a satellite...
Escape Velocities of Gases
Mitral Stenosis I: Introduction
Mitral Regurgitation I: Introduction
Mitral Valve Prolapse I: Introduction
Mitral Regurgitation III: Medical Management

