I am a male, aged 53. In early 2007, I started to experience paroxysmal atrial fibrillation (AF), always triggered by hard exercise (I am a rock climber, mtn biker, mountaineer) but not every time I exercised hard. ECGs showed a mix of irregularities - including atrial flutters and atrial tachycardia ). All other tests (treadmill, echocardiogram, chest X-ray, angiogram, blood tests etc.) show me to be in excellent health [note that my resting heart rate was about 50-55bpm at this time]. Frequency of AF events increased through early 2008 but in June, frequency increased alarmingly and no longer needed exercise to trigger it. At this stage I noted a lot of events were soley atrial ectopics rather than what I call 'full AF'. It subsequently emerged that I had contracted Lyme Disease from a tick bite on 18th June. I started to take antibiotics on 5th July and continued for two weeks. I also went onto maximum dosage of slow-release felcainide acetate (200mg x 2 per day) to control the AF. I had a pulmonary vein isolation operation on 7th August. Since then, I've had a few 'full blown AF' but short-lived events; in contrast, atrial ectopics seem to have become engrained as a chronic condition. I can get them any time of day or night (no link to exercise), either as a single event, clusters of several single beats over a short period, or 'linked' ectopics (bigeminal?), where I get several beats in a row (on one occasion, I had around 100 such beats). My question is - could this seemingly chronic condition of atrial ectopics be caused by post-treatment chronic Lyme Disease? Or, is it just a stage within the post-opration recovery process that will pass?
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