implantable defibrillators are implanted to terminate an episode of atrial arrhythmia. afib (atrial fibrillation) is also a type of atrial arrhythmia. the icd not only provides treatment for atrial arrhythmias but also provides treatment for ventricular arrhythmias as well as rate-responsive dual chamber pacing for the treatment of bradycardia. the pacing attempts to gain control over the arrhythmia by interrupting the pathway of the atrial arrhythmia and uses low energy pacing which is usually goes unnoticed by the patient. in cases when atp (antitachycardia pacing) is successful the patient may not even be aware that they have had an arrhythmia until their device follow-up. so the answer for your question is icd cannot cause atrial fibrillation until and unless it is implanted incorrectly; rather it will terminate an episode of atrial fibrillation automatically. for further information consult a cardiologist online --> <link>
can implantable cardioverter defibrillator cause afib?