Atypical atrial flutter originates from the left atrium or areas in the right atrium, such as surgical scars, and has a variable appearance on ECG in regards to the flutter waves.

This is especially true if no AV blocking medications were being taken at the time of this ECG. For a complete review of atrial flutter including the types and determining rotation, click the ...

Los Angeles Chargers coach Jim Harbaugh is having a cardiac ablation during the offseason. Here's what that means.

Harbaugh said during his end-of-season remarks on Wednesday that he will “soon” have an ablation to treat an irregular heart ...