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It is well known that Flecainide
is an effective drug but it also has adverse effects.
The use of cardioversion
is limited to the time of fibrillation
only / and the effect is temporary.
If you are concerned, there are other advanced treatment modalities - like RF ablation, which could be done during Electro Physiological Studies (EPS) > it resembles angio – a catheter is put inside the heart / electrical activity recorded / stimulation and suppression tests are carried out / suitable medicine tested and so on. Though the procedure is the gold standard, it is INVASIVE and has a risk (though minimal) and is not generally done unless there are compelling indications.
This super-speciality expert is called ELECTRO-PHYSIOLOGIST.
The treating doctor may suggest them depending on need, based on his assessment of the situation.
Wishing speedy recovery