Hi I had catheter ablation for pvc's on 11/03, I was told that the procedure would right sided, after ablation on the left side immediately after the operation I experienced visual aura on and off (10 episodes) with migraine, post op day 2, 2 migraines with visual aura, post op day 3, 1 migraine with aura, post op day 4, 1 migraine with aura ( up to now). Why does this phenomenon happen and how long is it likely to last ? Is it permanent ? Any help is gratefully received...