Conclusions
By inserting the ICE into the LA, we visualized clearly the LAPW and the
esophagus. This method can reliably locate the esophagus and clearly
display the relationship of the LAPW to the esophagus. Furthermore, the
measurements of LAPW thickness can be performed during the AF ablation
procedure. The median LAPW thickness adjacent to the esophagus was
<3mm in the vast majority and different among the 4 height
levels, being thickest at the LSPV level and thinnest at the LIPV level,
which suggests a necessity of caution when ablating especially at the
level with the thinnest wall thickness.