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Fully Endoscopic Mitral Valve Repair with Percutaneous Cannulation of Groin Vessels
Published on: May 26, 2023
Another pitfall in minimally invasive mitral valve repair
Maiken B Jensen1, Peter B Hansen, Jacob E Moller
1Department of Cardiothoracic Anesthesiology, The Heart Centre, Rigshospitalet, Copenhagen, University Hospital, Copenhagen, Denmark. maikenjensen@dad/net.dk
The Annals of Thoracic Surgery
|November 27, 2007
Summary
Severe systolic anterior motion (SAM) and left ventricular outflow obstruction after mitral valve repair were caused by pericardial stay sutures. Releasing these sutures resolved the obstruction, highlighting geometric factors in cardiac function.
Area of Science:
- Cardiovascular Surgery
- Cardiac Mechanics
- Anatomical Pathology
Background:
- Mitral valve repair for posterior leaflet flail can lead to complications.
- Systolic anterior motion (SAM) and dynamic left ventricular outflow tract (LVOT) obstruction are potential adverse events.
- Understanding the etiology of these complications is crucial for patient outcomes.
Observation:
- A case of severe SAM and dynamic LVOT obstruction occurred post-mitral valve repair.
- The obstruction was directly attributed to traction from pericardial stay sutures used for surgical exposure.
- Complete resolution of SAM and LVOT obstruction was achieved by releasing these sutures.
Findings:
- Pericardial stay sutures can induce geometric changes leading to SAM and LVOT obstruction.
- Traction on sutures alters the spatial relationship of cardiac structures.
- This case underscores the impact of surgical manipulation on cardiac dynamics.
Implications:
- Geometric factors play a significant role in the development of SAM and LVOT obstruction.
- Evaluation of the heart in its natural mediastinal position is essential during surgical assessment.
- This finding may inform surgical techniques to prevent iatrogenic cardiac dynamic abnormalities.
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