Whether an abnormal lower wall q wave on ECG is important or not needs to be decided based on the patient’s symptoms, combined with a clear diagnosis by history and relevant examinations.
Abnormal q waves in the lower wall of the ECG are defined as q waves in leads II, III, and AVF on the ECG with a width of more than 0.04 sec and a depth of more than 1/4 of the same lead. there are several reasons for this:
1. Stale inferior wall myocardial infarction: previous acute inferior wall myocardial infarction, abnormal q-wave formed by healing of necrotic myocardium after treatment.
2. Acute inferior wall myocardial infarction with necrotic abnormal q waves.
3. Left bundle branch combined with left anterior branch block can present with abnormal q waves in the inferior wall.
4. Patients with preexcitation syndrome may also have abnormal q waves in the lower wall.
5. Abnormal q waves in the lower wall after acute pulmonary embolism.
6. Patients with myocarditis and cardiomyopathy may have abnormal q waves in the lower wall.
7. Normal people with ECG variations have abnormal q waves in the lower wall.
In short, the ECG lower wall abnormal q wave should be combined with the symptoms and related examination, if you determine the acute lower wall myocardial infarction, or pulmonary embolism should be hospitalized in a timely manner, given oxygen, thrombolysis and other rescue measures, the normal people lower wall abnormal q wave do not have to deal with, other cases in the guidance of the doctor to give the appropriate treatment.