Improved
Atrial fibrillation and flutter in the simulator, from the 12-lead engine
Before
The simulator drew atrial fibrillation and flutter with its own simpler model, so the same rhythm looked different from its 12-lead page.
After
The simulator's fibrillation and flutter come from the 12-lead engine: the same f waves, the same flutter ratios and the same AV node. The articles are cut to the basics, and the 12-lead page carries the rest.