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Updated: Oct 9, 2025

An Image Guided Transapical Mitral Valve Leaflet Puncture Model of Controlled Volume Overload from Mitral Regurgitation in the Rat
Published on: May 19, 2020
Native mitral valve staphylococcus endocarditis with a very unusual complication: Ruptured posterior mitral valve
Samuel D Maidman1, Nicholas J Kiefer1, Samuel Bernard1
1Leon H. Charney Division of Cardiology, NYU Grossman School of Medicine, NYU Langone Health, New York, New York, USA.
Infective endocarditis (IE) can cause dangerous mitral valve aneurysms. This case highlights a rare posterior leaflet rupture, emphasizing unusual IE complications.
Area of Science:
- Cardiology
- Pathology
- Medical Imaging
Background:
- Infective endocarditis (IE) is a severe infection with high mortality rates.
- Mitral valve damage from IE can lead to leaflet destruction and, rarely, aneurysm formation.
- Aneurysms typically occur on the anterior mitral leaflet.
Observation:
- A patient with infective endocarditis presented with a rare complication.
- The complication involved a ruptured aneurysm of the posterior leaflet of the mitral valve.
- Imaging and surgical analysis confirmed the rupture at the P2-P3 scallop junction, with an annular abscess.
Findings:
- Demonstration of a ruptured posterior mitral leaflet aneurysm in infective endocarditis.
- Identification of an unusual rupture site at the P2-P3 scallop junction.
- Association of the aneurysm with a surrounding annular abscess.
Implications:
- This case expands the understanding of rare IE complications involving the mitral valve.
- Highlights the importance of advanced imaging in diagnosing complex IE cases.
- Suggests potential for posterior leaflet involvement in mitral valve aneurysms secondary to IE.
Related Concept Videos
Mitral Stenosis I: Introduction
Mitral Regurgitation I: Introduction
Mitral Valve Prolapse I: Introduction
Mitral Stenosis III: Medical Management
Endocarditis I: Introduction
Mitral Stenosis II: Clinical features and Diagnostic Tests

