I too have had this on every EKG I've had. I was told it was due to being larger breasted, but some women with smaller breast sizes do have this reading also but no explanation for it.
Hi
I have a print out of an ecg they took in the hospital and mine reads "borderline low voltage"..I had to take the ecg to my doctor and paniked all the way there thinking something was really wrong...I asked him what the hell it meant and he just said "nothing"...there is a lot of scary looking words on a ecg,that can actually turn out to be insignifigant...