Abstract
A 49-year-old woman with dextrocardia and situs inversus underwent catheter ablation of paroxysmal atrial fibrillation (AF). During the electrophysiologic study, AF triggered by frequent premature atrial contractions (PACs) with a short coupling interval exhibiting a "P on T" pattern occurred. Pulmonary vein mapping revealed that those PACs originated from right-sided (anatomic left) or left-sided (anatomic right) pulmonary veins. In this case with mirror-image dextrocardia, the P-wave morphologies in leads I and aVL and the II/III ratio of the P-wave amplitude were helpful for predicting a right- or left-sided pulmonary vein origin.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 301-304 |
| Number of pages | 4 |
| Journal | Annals of Noninvasive Electrocardiology |
| Volume | 14 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jul 2009 |
| Externally published | Yes |
Keywords
- Dextrocardia
- Focal atrial fibrillation
- P-wave morphology
- Premature atrial contraction
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