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Mitral valve prolapse and stroke: echocardiographic evidence for a missing causative link
C M Gross1, F T Nichols, T W von Dohlen
1Section of Cardiology, Medical College of Georgia, Augusta 30912.
Summary
Mitral valve prolapse can cause embolic events, often attributed to valve thrombi. Echocardiography visualized a high-risk thrombus on a prolapsing mitral valve in a stroke patient, offering new diagnostic insights.
Area of Science:
- Cardiology
- Neurology
- Medical Imaging
Background:
- Systemic embolic events are linked to mitral valve prolapse.
- The exact mechanism of embolism from mitral valve prolapse is debated, with thrombotic deposits being a leading hypothesis.
- Echocardiography has not previously documented thrombi associated with mitral valve prolapse.
Observation:
- A patient presented with a severe cerebrovascular accident.
- Echocardiography was performed to investigate the cause of the stroke.
- A significant mass was visualized on the mitral valve.
Findings:
- The echocardiogram clearly showed a mass attached to the prolapsing mitral valve leaflet.
- This mass was identified as having a high potential for embolization.
- This represents the first reported echocardiographic documentation of such a finding.
Implications:
- This finding supports the hypothesis that thrombotic deposits on prolapsing mitral valves can cause systemic emboli.
- Echocardiography may play a crucial role in identifying embolic sources in patients with mitral valve prolapse.
- Further research is warranted to explore the diagnostic and therapeutic implications of visualizing mitral valve thrombi.