What Causes Irregular Heartbeat?
I would explain as follows:
Detailed Answer:
Hello!
Welcome and thank you for asking on HCM!
I understand your concern, and would like to explain that when dealing with arrhythmic events two important clues should be investigated:
(a) a possible pathological myocardial substrate (that is a possible cardiomyopathy, which may be ischemic, hypertrophic, dilated, etc). Seems that this possiblility is excluded (cardiac ultrasound, coronary angiography, etc.). This is the good news.
(b) an intrinsic adverse implication of the specialized cardiac system (responsible for generating and conduction of cardiac electric impulses). In such case Holter monitoring would bring an exact view of qualitative and quantitative evaluation of arrhythmic events. The first disorder to exclude form such a result (PVC and bradycardia would be a sick sinus syndrome).
As his doctor hasn't concluded for such a disorder, it looks that arrhythmia isn't significant, and bradycardia not persistent.
It is important to directly review Holter results for a better professional opinion.
Please, could you upload his Holter data?
Hope to have been helpful to you!
Feel free to ask me whenever you need! Greetings! Dr. Iliri
Further diagnostic work up is necessary.
Detailed Answer:
Hi again!
Having a symptomatic bradycardia (persistent tiredness) and furthermore coupled with frequent PVCs, can't be underestimated.
This couldn't be a normal cardiac condition!
But, coming to this point, I would say that it is hard for me to give an exact opinion without reviewing first his Holter results.
I remain of the persistent opinion that there are strong suspicions for a sick sinus syndrome, but it should be confirmed by a specialist after facing with unequivocal underlying tests I mentioned.
I would advice you to re-consult his attending cardiologist for a current review of his clinical scenario (frequent symptomatic arrhythmic events) and other performed tests (including Holter monitoring too), as I believe that further diagnostic work up is necessary to come to the right diagnosis.
Best wishes,
Dr.Iliri