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Could pericardial effusion cause a heart block?

2 doctors weighed in
Dr. Steven Ajluni
Internal Medicine - Cardiology
1 doctor agrees

In brief: Pericardial effusion

Pericardial effusion most commonly is associated with faster heart rates as tachycardia compensates to maintaini cardiac output when there is restriction to ventricular filling as there is in large effusions.
If the effusion is small, heart rate is likely unaffected. Depending on the cause of the effusion, however, heart block could occur (hypothyroidism), or if vagal reaction occurs.

In brief: Pericardial effusion

Pericardial effusion most commonly is associated with faster heart rates as tachycardia compensates to maintaini cardiac output when there is restriction to ventricular filling as there is in large effusions.
If the effusion is small, heart rate is likely unaffected. Depending on the cause of the effusion, however, heart block could occur (hypothyroidism), or if vagal reaction occurs.
Dr. Steven Ajluni
Dr. Steven Ajluni
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