Hi,
Missed heartbeats, or commonly known as palpitations, are caused by a lot of factors.
There are those that come from the intrinsic disease of the heart, like
valvular heart disease and cardiac arrhythmias, as well as thyroid disease; and those that are from extrinsic causes like medications, alcohol, and caffeine intake.
Palpitations should be worked out to determine the primary cause. If extrinsic causes are eliminated, with the palpitations still persisitent.
It is important to check for the thyroid function to note for hyper and
hypothyroidism which themselves cause palpitations.
Palpitations with the normal treadmill
stress test and ECG may also warrant the use of Holter monitors, event recorders, and even implantable loop recorders to note for intermittent arrhythmias causing the palpitations.
And with this, it is important to stop taking medications, alcohol, and caffeine to rule out palpitations caused by modifiable factors.
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr Daryl Derick B. Dizon, General & Family Physician