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. Author manuscript; available in PMC: 2015 Dec 11.
Published in final edited form as: Circulation. 2014 Mar 28;130(23):e199–e267. doi: 10.1161/CIR.0000000000000041

Figure 1. Atrial Tachycardias.

Figure 1

Diagram summarizing types of atrial tachycardias often encountered in patients with a history of AF, including those seen after catheter or surgical ablation procedures. P-wave morphologies are shown for common types of atrial flutter; however, the P-wave morphology is not always a reliable guide to the re-entry circuit location or to the distinction between common atrial flutter and other macro–re-entrant atrial tachycardias.

*Exceptions to P-wave morphology and rate are common in scarred atria.

AF indicates atrial fibrillation and ECG, electrocardiogram (72, 80).