According to the ECG results you provided, there is a risk of myocardial ischemia and coronary heart disease. If you have the basic diseases mentioned in the above inquiry, the risk coefficient is even greater, but it is impossible to determine whether you have coronary heart disease by only one abnormal ECG. We need to improve dynamic electrocardiogram, exercise treadmill test, and color Doppler echocardiography. However, the gold standard for diagnosing coronary heart disease is coronary angiography.
As for prevention, we must start with diet and exercise, a healthy diet with low fat, low salt and low sugar, plus proper exercise and regular physical examination. If you have related diseases, you need active treatment.
As for treatment, it is necessary to confirm the condition before further treatment. It is recommended to go to a local regular hospital and consult a specialist for corresponding treatment.