A small study provides good evidence that radiofrequency ablation as first-line therapy has a lower failure rate vis a vis recurrence of AF when compared to antiarrhythmic therapy. But, there is more to this story.
A 9-year-old boy presented with a 1-week history of pruritus and rash on his elbows, knees, back, and legs. He had recently run through a field of tall grass but denied any other exposure history. Your dx?