[joshgel]

Just want to point out that Atrial Fibrillation and Atrial Flutter are (usually) very benign, chronic conditions. Many people have for years without symptoms.

Ventricular fibrillation, ventricular tachycardia and torsades are acutely deadly. You have seconds to minutes to get a normal rhythm back.

The charts colors made me feel like they were implying a-fib was the worst rhythm listed. (Though they list the severity in the descriptions in small text)

[mannykannot]

While atrial fibrillation does not present anything close to the immediate and critical threat of the three you mentioned, it should not be ignored, as it increases the risk of stroke and embolism through blood pooling and clotting in the left atrial appendage of the heart.

When it is not asymptomatic, it is difficult to ignore anyway.