<abstract xmlns="http://www.w3.org/1999/xhtml"> Background: Maintaining continuity between the mitral valve and the subvalvular apparatus during mitral valve replacement (MVR) maximizes the left ventricular (LV) function and increases the survival rate. However, MVR potentially cause rupture of the papillary muscles, systemic embolization, or dehiscence of the mitral annulus from the transposed position. Objective: We presented a case with severe rheumatic mitral valve disease treated with MVR and partial preservation of the posterior and anterior chordae tendineae. Methods: Retrospectively review of medical records. Results: Transthoracic echocardiography performed two weeks after surgery revealed a floating mass in the posterior inferior aspect of the left atrium and a lobulated mass joining the tip of the posterior papillary muscle in the left ventricle. Perioperative examination confirmed a large thrombus in the left atrium and the stump of the preserved posterior papillary muscle of the mitral valve. Conclusion: Thus, the papillary muscle could present itself as an abnormal mass on echocardiography, resulting in misdiagnosing.</abstract>

Background: Maintaining continuity between the mitral valve and the subvalvular apparatus during mitral valve replacement (MVR) maximizes the left ventricular (LV) function and increases the survival rate. However, MVR potentially cause rupture of the papillary muscles, systemic embolization, or dehiscence of the mitral annulus from the transposed position. Objective: We presented a case with severe rheumatic mitral valve disease treated with MVR and partial preservation of the posterior and anterior chordae tendineae. Methods: Retrospectively review of medical records. Results: Transthoracic echocardiography performed two weeks after surgery revealed a floating mass in the posterior inferior aspect of the left atrium and a lobulated mass joining the tip of the posterior papillary muscle in the left ventricle. Perioperative examination confirmed a large thrombus in the left atrium and the stump of the preserved posterior papillary muscle of the mitral valve. Conclusion: Thus, the papillary muscle could present itself as an abnormal mass on echocardiography, resulting in misdiagnosing.

Papillary muscle stump mimicking a left ventricular mass after mitral valve replacement with partial chordal preservation

Cardiology, Department of Internal Medicine, Xiamen 361028,

Second Section of Cardiology, Department of Internal Medicine, Chang Gung University College of Medicine, Taipei 10591, Taiwan

Division of Cardiovascular Surgery, Department of Surgical Medicine, Chang-Gung Memory Hospital, Chang Gung University College of Medicine, Taipei 10591,

MD, Chang Gung Memorial Hospital, 199 Tung Hwa North Road, Taipei 10591,

Second Section of Cardiology, Department of Internal Medicine, Chang-Gung Memory Hospital, Chang Gung University College of Medicine, Taipei 10591,

Asian Biomedicine

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Background: Maintaining continuity between the mitral valve and the subvalvular apparatus during mitral valve replacement (MVR) maximizes the left ventricular...

Papillary muscle stump mimicking a left ventricular mass after mitral valve replacement with partial chordal preservation

Article Category: Clinical report

Published Online: Feb 04, 2017

Page range: 625 - 628

DOI: https://doi.org/10.5372/1905-7415.0604.101

Keywords
Intracardiac mass, mitral valve replacement, papillary muscle

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Papillary muscle stump mimicking a left ventricular mass after mitral valve replacement with partial chordal preservation

Article Category: Clinical report

Published Online: Feb 04, 2017

Page range: 625 - 628

DOI: https://doi.org/10.5372/1905-7415.0604.101

KeywordsIntracardiac mass, mitral valve replacement, papillary muscle

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Intracardiac mass, mitral valve replacement, papillary muscle