Related Experiment Video
Updated: Mar 25, 2026

A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair
Published on: October 16, 2021
Recurrent infarctions due to a dome-shaped pannus above the mitral valve prosthesis
Hirofumi Kasahara1, Yoshito Inoue1, Satoru Suzuki1
11 Department of Cardiovascular Surgery, National Hospital Organization Saitama Hospital, Wako, Japan ; 2 Department of Cardiovascular Surgery, Hiratsuka City Hospital, Hiratsuka, Japan.
Abstract:
This report describes a unique case of a 56-year-old female who suffered from recurrent stroke after double mechanical valve replacement. During the four years after the surgery, she remained in normal sinus rhythm, received adequate anticoagulation therapy, and no apparent left atrial thrombus was detected. She underwent redo surgery to prevent further stroke after fourth instance of cerebral infarction. Intraoperative findings revealed a 'dome-shaped' pannus formation covering the sewing ring of the mitral prosthesis circumferentially, probably leading to clot formation and repeated infarctions. She has been stroke free for three years after pannus resection.
Related Concept Videos
Mitral Stenosis I: Introduction
Mitral Valve Prolapse I: Introduction
Mitral Regurgitation I: Introduction
Mitral Valve Prolapse II: Assessment and Management
Mitral Stenosis II: Clinical features and Diagnostic Tests
Mitral Regurgitation II: Clinical Features and Diagnostic Tests

