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Echographic-quantified severity of mitral anulus calcification: prognostic correlation to related hemodynamic,
Insights
Mitral annulus calcification (MAC) severity, assessed by echocardiography, correlates with serious heart conditions. Moderate to severe MAC (≥5 mm) indicates significant prognostic value for patient evaluation.
Area of Science:
- Cardiology
- Echocardiography
- Medical Imaging
Background:
- Mitral annulus calcification (MAC) is a common finding in older adults.
- The clinical significance of MAC, particularly its association with cardiovascular disease, requires further elucidation.
Purpose of the Study:
- To analyze clinical and echocardiographic findings in patients with mitral anulus calcification (MAC).
- To determine the correlation between the degree of MAC and various cardiovascular complications.
- To assess the prognostic value of echocardiographic findings in patients with MAC.
Main Methods:
- Retrospective analysis of clinical and echocardiographic data from 123 patients with MAC.
- M-mode echocardiography used to assess MAC severity (minimal to mild <5 mm vs. moderate to severe ≥5 mm).
- Statistical analysis to identify correlations between MAC severity and clinical outcomes.
Main Results:
- 67% of patients had moderate to severe MAC (≥5 mm).
- Significant correlations were found between MAC severity and left atrial enlargement, congestive heart failure, aortic valve sclerosis, mitral regurgitation, atrial fibrillation, and AV-fascicular conduction defects.
- ECG evidence of conduction disturbances and echocardiographic demonstration of MAC ≥5 mm were significantly associated with adverse clinical implications.
Conclusions:
- Echocardiographic assessment of MAC severity is crucial for identifying patients at higher risk.
- Moderate to severe MAC (≥5 mm) has significant prognostic value in evaluating patients.
- Findings highlight the association between MAC and a spectrum of cardiovascular pathologies.
Abstract:
Clinical and echocardiographic findings in 123 patients with mitral anulus calcification (MAC) were analyzed. In all patients M-mode echocardiography demonstrated a dense band of echoes posterior to the mitral valve, moving parallel and anterior to the left ventricular endocardium. Thirty-three per cent of patients were classified as having minimal to mild MAC (< 5 mm) and 67% had moderate to severe MAC (greater than or equal to 5 mm). There was a significant correlation between the degree of MAC to left atrial enlargement, congestive heart failure, aortic valve sclerosis, mitral regurgitation, atrial fibrillation, and AV-fascicular conduction defects. ECG evidence of conduction disturbances was significantly associated with MAC greater than or equal to t mm in width. The echocardiographic demonstration of MAC greater than or equal to 5 mm was significantly associated with the clinical implications known to occur with MAC; this echographic finding has important prognostic value in the evaluation of patients with mitral anulus calcification.