A mildly to moderately dilated left atrial cavity can be associated with atrial fibrillation (AFib), but it is not necessarily a definitive sign of the condition on its own. Left atrial dilation often occurs due to various factors such as longstanding hypertension, heart valve disease, or other forms of heart disease, and can increase the risk of developing AFib.
Atrial fibrillation is characterized by irregular and often rapid heartbeats and is more likely to occur in patients with structural heart changes, including left atrial enlargement. If left atrial dilation is noted, further evaluation and monitoring would be warranted to assess for AFib or other underlying conditions.
In summary, while left atrial dilation is often associated with AFib, it is essential to consider other clinical factors and conduct further testing to determine the presence of AFib or other cardiac issues.
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