Low-Energy Atrial Defibrillation

Temporary epicardial wire electrodes placed during open heart surgery for potential diagnostic and/or therapeutic use in patients in the immediate postoperative period have been used safely and effectively as part of standard care for a long time.1 2 3 4 We have also known that synchronized delivery of a low-energy DC shock for cardioversion of atrial fibrillation is very effective.5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 With the presentation by Liebold et al22 of the study of 100 consecutive patients undergoing open heart surgery, we now have the demonstration of a new clinical application of both the use of temporary epicardial atrial wire electrodes and low-energy DC cardioversion of atrial fibrillation. The article by Liebold et al22 is actually about 2 things. One is a new therapeutic modality in the treatment of atrial fibrillation in the period immediately after open heart surgery. The other is the efficacy, safety, and tolerance of so-called low-energy atrial defibrillation.It is widely recognized that atrial fibrillation is a common and important …