|Disclaimer: this is not Dax, nor his heart. :)|
- It's probably nothing. 98% of patients (I'm 98% sure he made up this statistic on the spot. I'm sure he meant "a large number of these diagnoses") that have a larger than normal heart, are still within the "normal ratio." Meaning Dax's might be big. But it's most likely nothing to be concerned about.
- The fact that the ER physician didn't mention it to me yesterday is probably a good sign.
- If it IS larger than the allowed "standard deviations" in this ratio, then something is wrong. They would do more tests (EKG, ECG, MRI/CT scans, etc) to diagnose him. From the research I've done today (which I really wish I hadn't, because now I'm officially freaking out), it's usually a result of Ventricular Hypertrophy in pediatric cases. (The muscles around the ventricles are larger than normal, and the heart has to work harder to pump enough blood and oxygen to the body and/or lungs- depending on which ventricle is affected.)
However, I would ALSO like to point out that it has been rumored that Lance Armstrong also has an enlarged heart. (And maybe Michael Phelps?) So, I think that's all that's going on here: is Dax is destined to be an elite international athlete. :)