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Updated: Mar 8, 2026

An Image Guided Transapical Mitral Valve Leaflet Puncture Model of Controlled Volume Overload from Mitral Regurgitation in the Rat
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Acute Multiple Cerebral Infarction in a Patient with an Accessory Mitral Valve
Ikuo Misumi1, Asako Nagao, Katsuya Iwamoto
1Department of Cardiology, Kumamoto Saisyunsou Hospital, Japan.
Abstract:
A 96-year-old woman developed hemiparesis 2 weeks after orthopedic surgery. Magnetic resonance imaging revealed multiple cerebral infarctions in the bilateral hemisphere. Transthoracic echocardiography revealed a mobile structure attached to the anterior mitral leaflet that protruded toward the left ventricular outflow tract. The structure was identified as an accessory mitral valve. Doppler echocardiography showed that there was no significant left ventricular outflow obstruction. This is a rare case of a silent accessory mitral valve that was detected after multiple cerebral infarctions.
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