DS had a radiofrequency ablation 2 years ago for avnrt (a congenital heart defect resulting in episodes of very high bpm) He's just turned 18 and is now having irregular beats and episodes of bradycardia. Now he's an adult I can't sort this out for him and I'm so worried. He's calling the GP Monday so that he can get referred to a cardiologist but I just feel so ...useless. Don't know why I'm posting really.