My 11 year old son, Max, has had 2 cardiac events: the first (with physical excersion) with acute chest pains, passing out, and lethargy... the second (while at rest) - acute chest pains for a few seconds. Both trips to emergency turned up a NORMAL ECG and blood work up. He just had an echo done, and the report says he has an enlarged AORTIC ROOT, and an enlarged ASCENDING AORTA. Is this serious? Should be be exerting himself right now? He is a very active, fast child. We cannot get into see a pediatric cardiologist until August, but I m nervous about his activity level.