Early Heparin Administration Reduces Risk for Left Atrial Thrombus Formation during Atrial Fibrillation Ablation Procedures

<table>The circular mapping catheter can clearly be visualized in the antrum of the left superior pulmonary vein. Attached to the inferior part of the ring of electrodes, a mobile thrombus can clearly be seen (encircled). Immediately measured ACT was 289 s.</table>

Cardiology Research and Practice

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Figure 1

Figure 1: Early Heparin Administration Reduces Risk for Left Atrial Thrombus Formation during Atrial Fibrillation Ablation Procedures 