What does left axis deviation, st depression, and abnormal twave, heart rate 134 mean? pr interval 145, p duration107, t duration 230, qrs duratio...

Many possibilities : Phillip, Many of the findings you mention can be normal variants but may also represent more concerning issues such as blocked arteries. I would note that you don't want to rely on a computer interpretation of the ECG and should make sure a cardiologist has reviewed it. Other things to remember is that you want to review the ECG in the context of symptoms, risk factors etc.

Electrocardiogram: The electrocardiogram (ECG, or EKG in German) is a recording of the electrical activity of the heart. Sometimes a computer gives a prelim interpretation, then a doctor gives a final reading. The findings you listed are details but not interpretation. Depending on clinical context (age, symptoms, history) and comparison with prior ECGs, ST depression might mean ischemia and need further testing.