My only symptom was on one occasion when taking my pulse I noticed a pause, ie, beat, beat, beat, pause etc, that appeared at intermittent random moments. I assume this was the block? Otherwise I feel we'll.
The stress test was a stress echo, the echocardiogram was normal.
Thank you for your question. The symptoms you are describing are called palpitations. They are a very common reason patients seek medical evaluation.
The key to an evaluation of palpitations is put a patient in the appropriate risk category, but ultimately the goal is to capture their heart’s electrical rhythm when they are having the symptoms. This can be difficult for patients who have infrequent symptoms.
First, an incomplete right bundle branch does not infer any difference in prognosis in patient with no evidence of structural heart disease. You may ask your doctor to order an echocardiogram (ultrasound of your heart) to ensure you have no structural heart disease.
In terms of capturing the abnormal beats. Your symptoms sound infrequent if they were not captured on a Holter or not occurring with vigorous exercise (20 METs on a treadmill). I congratulate you on your excellent exercise capacity by the way! I would NOT recommend you decrease your exercise. You have no real red flag signs from what you described.
Also, if you haven’t done so already make the following lifestyle interventions. Avoid excessive caffeine alcohol. Avoid stimulants. Avoid sleep deprivation. Look into stress reduction techniques (yoga, massage, tai chi, etc).
As for your chance of getting atrial fibrillation. There is no way to tell. The fact that your mother had atrial fibrillation does not necessarily increase your risk. And the fact that you have palpitations does not increase your risk as well.
Thank you for your excellent question. You can consider asking your physician about an echocardiogram and a longer period of Holter monitoring (30 days) if you need closure for this matter. However, you should not be excessively worried about this issue.
Sincerely,
Dr. S