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Mitral annulus calcification with a mobile component as a possible source of embolism
R Shohat-Zabarski1, R Paz, Y Adler
1Sheingarten Echocardiography Unit, Department of Cardiology, Rabin Medical Center, Beilinson Campus, Petah-Tiqva; Sacler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
The American Journal of Geriatric Cardiology
|July 17, 2001
Summary
Mitral annulus calcification (MAC) can cause embolic events. A mobile component of MAC may directly lead to embolism, suggesting a causal link in some patients.
Area of Science:
- Cardiology
- Medical Imaging
Background:
- Mitral annulus calcification (MAC) is linked to embolic events, but the exact mechanism remains unclear.
- Understanding the pathophysiology of MAC-associated embolism is crucial for patient management.
Observation:
- Four patients with embolic events presented with MAC on transesophageal echocardiography.
- A mobile, echogenic component within the MAC was observed in these patients.
- Three patients had no other identifiable risk factors for embolism.
Findings:
- The mobile component of MAC resolved in three patients upon follow-up echocardiography.
- This dynamic change suggests the mobile component is directly implicated in embolic phenomena.
- The findings support MAC as a potential direct cause of embolism.
Implications:
- This study provides evidence for a direct causal role of MAC in embolic events.
- It highlights the importance of identifying mobile components in MAC for risk assessment.
- Further research into the management of mobile MAC is warranted.