So, to answer your real question, does it possibly improve the success of an ablation. Any information gleaned prior to the operation would be useful. I had contrast treadmill stress tests with CT scan, an MRI, an angiogram, numerous x-rays...and they all showed that ischemia (short blood supply and oxygen) was NOT my problem (it was sleep apnea...severe.) According the the EP on the YouTube channel 'AFib Education Center,' the single great determinant of success is the skill and process of the person performing the operation, followed by the complexity of the case....how advanced the AF is, how many walls of the vessel of interest are affected by the rogue signaling foci of cells. The more walls affected, causing more and more arrhythmia, the better and more experienced the EP is that you should hire. I think one can safely assume that the very best in any field use more and more information to guide them on their application.

I had a TEE before my watchman.