Tag: Heart block

According to several studies, a significant number of patients presenting with second- or third-degree atrioventricular (AV) block are receiving medications known to impair cardiac conduction. This highlights the critical importance of identifying and understanding what medications cause AV block, especially for individuals with underlying heart conditions.

According to American Heart Association guidelines, digoxin should be generally avoided in patients with second- or third-degree atrioventricular (AV) block unless a functioning pacemaker is present. However, a nuanced approach is required, as the answer to 'Is digoxin contraindicated in AV block?' is not a simple yes or no, but depends heavily on the type and severity of the heart block.

Bisoprolol is a widely prescribed cardioselective beta-blocker used to manage conditions like hypertension and heart failure. As with all medications affecting heart rhythm, it is crucial to understand its specific effects on the heart's electrical system, including the question: **Does bisoprolol block the AV-node?**.

Studies suggest that up to 50-75% of the US population may have an insufficient dietary intake of magnesium [1.9.1, 1.9.3]. Despite its importance, certain individuals must be cautious. This article explores in detail **who cannot use magnesium** supplements safely.