But here’s the catch: The machine said possible . And it said age undetermined . ECG algorithms are sensitive. They are designed to catch every tiny abnormality so nothing dangerous is missed. However, they are not very specific.
If a true acute anterior infarct is happening, you need a cath lab now . possible anterior infarct ecg
I have seen countless healthy 25-year-old runners get a "possible anterior infarct" on a routine sports physical ECG, only to have a normal echocardiogram five minutes later. But here’s the catch: The machine said possible
You’re sitting in the doctor’s office, or maybe you’re a medical student reviewing a case. You glance at the ECG readout. At the top, in bold capital letters, the machine has printed a verdict: “POSSIBLE ANTERIOR INFARCT, AGE UNDETERMINED.” They are designed to catch every tiny abnormality
The machine looks for specific voltage criteria, usually deep in the precordial leads (V1-V4) or poor R wave progression. It flags this pattern as a "possible" old heart attack. But here are three common scenarios where the machine is almost certainly wrong: 1. You are tall, thin, or have a "Vertical Heart" In tall, lean individuals (or people with long, narrow chests), the electrical position of the heart sits differently. It is common to see small or "poorly progressing" R waves across the chest leads. The machine reads this anatomical variation as scar tissue. It’s not. It’s just your body shape. 2. Lead Placement Errors Did the technician put the V1 and V2 leads one intercostal space too high? If so, you’ll often see a funny looking "rSr'" pattern that mimics septal infarction. Improper placement is a leading cause of false positive "possible infarct" readings. 3. Left Bundle Branch Block (LBBB) or LVH If you have Left Ventricular Hypertrophy (LVH—a thick heart muscle from high blood pressure) or a Bundle Branch Block, the normal electrical flow is disrupted. The machine gets confused. It sees the abnormal vectors and defaults to "possible infarct" because old scar tissue can look similar. When "Possible" Means "Probable" (The Red Flags) While the machine cries wolf often, you should never ignore it. You need to look at the patient , not just the paper.
Disclaimer: This post is for educational purposes and does not constitute medical advice. Always consult a qualified physician for interpretation of your own ECG results.