What is the prevalence of left ventricular hypertrophy (LVH) on ECG in aortic stenosis (AS)?

Updated: May 07, 2019
  • Author: Xiushui (Mike) Ren, MD; Chief Editor: Terrence X O'Brien, MD, MS, FACC  more...
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Answer

Although the ECG findings may be entirely normal, the principal finding is left ventricular hypertrophy (LVH), which is found in 85% of patients with severe aortic stenosis; however, its absence does not preclude critical aortic stenosis. Patients with significant aortic stenosis who may not show clear ECG evidence of ventricular hypertrophy include elderly persons with significant myocardial fibrosis and adolescents, who may experience ST-segment changes before QRS changes.


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