What does isolated narrow q wave in lead 3 mean, flat t waves across all leads, mild sigmoid septal bulge. does this all relate to hole in heart

Non specific finding: The findings you describe sound non-specific, and may occur for multiple reasons. The ekg does not usually diagnose a hole in the heart, but it can give information about how the heart is responding if the hole is causing additional stress on the heart function.

ECG chanegs: An isolated narrow Q wave in lead iii means nothing. Flat t waves across all leads could be significant or not. Conditions that flatten t waves include pericarditis, and sometimes circulation insufficiency. There is no "sigmoid" in your heart. While a "septal bulge" can occur in the heart, it can not be seen on an ecg. Please clarify.