Better | Loud S1 Causes

These are often pathological and involve physical changes to the heart's anatomy .

An accentuated or (the "lub" in your heartbeat) occurs when the heart's atrioventricular (AV) valves—the mitral and tricuspid —slam shut more forcefully than usual . While sometimes just a sign of a fast heart rate, it can also provide critical clues about underlying heart conditions . The Core Mechanism loud s1 causes

Cause a Loud S1?

This is the most common pathological cause. A stiff or thickened mitral valve that still retains some mobility will close more abruptly. These are often pathological and involve physical changes