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Atrial Fibrillation and Diltiazem
You have what is called paroxysmal atrial fibrillation (AF) and if I am correct an essentially normal heart function w/o other cardiac risk factors. Since these episodes occur with relative frequency, you are at an increased (but low, I calculated 1.9%) risk for a stroke and just a baby aspirin/day would be recommended in your case.
Diltiazem is used for rate control for AF in your case and doesn't appear to be very effective. The questions thus are
- Could another drug such as a Beta blocker be more effective
- How successful will a catheter ablation be in your case.
There are some other things that can be done to prevent recurrent spells of AF, such as reduce or eliminate caffeinated and alcoholic beverages from your diet, because they can sometimes trigger an episode of atrial fibrillation.
Taking these factors into consideration, I'd go with your EP doc's opinion.
Hope this helps,
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