inverted t wave was found 25 years ago on ekg, the dr said he was ok. in feb 2007, he had a heart attack and 5 doctors(cardo) have said nothing or are not concerned about the t wave, it is my father. still the question is, is an inverted t wave heart disease or just a heart condition.

Pathologic T wave or inverted t wave usually is present in people who had myocardial infarction or heart atack.

Oh! no, one must not forget that Anxiety or tension can also cause T wave inversion. Your doctor is a well experienced, to delete any cardiac pathology at that time.
After post myocardial infarction it's a matter of concern. BUT to reach a conclusive diagnosis, the 12 leads have to be taken in consideration.
Tell your father all is well that end well and to remain happy and calm, and follow the doctor's advise.

Inverted T waves are nonspecific and can show up as a normal variant on an ECG. Of course T wave inversion could be taken more seriously in light of a h/o MI. T wave inversion also occurs with hypertension in response to an increased heart rate (anxiety) and in and of itself, is not a sign of heart disease. T wave abnormalities should be correlated with clinical findings. Let his doctors worry about this. His heart will be routinely monitored.