http://americanheart.mediaroom.com/index.php?s=43&item=398

"Statement highlights:
• The side effects of stimulant drugs, like those used to treat ADHD are usually insignificant, but are important to monitor for children with ADHD and certain heart conditions.
• Children diagnosed with ADHD should receive an electrocardiogram (ECG) to rule out heart abnormalities before beginning treatment with stimulant drugs.
• Children currently taking stimulant drugs who did not have an ECG prior to treatment should get an ECG."

Someone sent me this same info and I read it on the American Heart Assoc website. It gets you thinking that's for sure - I'm going to talk to my son's doc and see if he recommends an EKG. Peace of mind is worth a lot.

Something that I myself have advised for many years now. Thanks for sharing the link/article.