Cold drinks can definitely do it. That's what happened to me, an ice cold Gatorade was the culprit. Of course, I had also been binge drinking for three straight nights and I had just worked out and was dehydrated. Also, I'd just had caffeine so I kind of had the entire gamut of afib risks covered. Regardless, the ice cold Gatorade chug was what actually threw my heart into afib.
Thanks for the reply Delta, I am on metropolol 100 mg a day and coumadin. My surgeon seems to believe that my afib was being caused by the tumor before the surgery and now is being caused by irratation from the surgery. I also and battling some paricardial effusion, and post-paricardialtomy syndrome. I am on mortin and colchimine to treat that. I hope that will clear up in a little less than a week.