What does high voltage on ECG mean?

High Voltage QRS Morphology Increased QRS voltage is often taken to infer the presence of left ventricular hypertrophy. However, high left ventricular voltage (HLVV) may be a normal finding in patients less than 40-45 years of age, particularly slim or athletic individuals.

What causes high voltage in the heart?

Several health conditions cause your heart to work harder than normal. The most common cause of LVH is high blood pressure (hypertension). Other causes include athletic hypertrophy (a condition related to exercise), valve disease, hypertrophic cardiomyopathy (HOCM), and congenital heart disease.

What does high voltage left ventricle mean?

Left ventricular hypertrophy, or LVH, is a term for a heart’s left pumping chamber that has thickened and may not be pumping efficiently. Sometimes problems such as aortic stenosis or high blood pressure overwork the heart muscle.

What is voltage criteria for LVH?

So in LVH, we expect the ‘R’ waveforms to be enlarged/tall in these leads (conversely, we expect the ‘S’ waves to be deep in the right ventricular leads, that is V1 and V2). Suggested voltage criteria for LVH include: The sum of the S wave in v1 or v2, PLUS the R wave in v5 or 6 ≥35 mm.

What are the voltage criteria for LVH ECG?

Voltage Criteria 1 R wave in lead I + S wave in lead III > 25 mm 2 R wave in aVL > 11 mm 3 R wave in aVF > 20 mm 4 S wave in aVR > 14 mm

Do you have to have right ventricular hypertrophy for ECG?

Hence, right ventricular hypertrophy must be pronounced in order to come to expresson the ECG. Moderate right ventricular hypertrophy may not alter the ECG significantly.

Which is the best ECG to diagnose RVH?

ECG Pearl. There are no universally accepted criteria for diagnosing RVH in the presence of RBBB; the standard voltage criteria do not apply.

How are U waves related to left ventricular hypertrophy?

Prominent U waves (proportional to increased QRS amplitude). ECG changes are an insensitive means of detecting LVH (patients with clinically significant left ventricular hypertrophy seen on echocardiography may still have a relatively normal ECG)