2024年10月10日 · Left ventricular hypertrophy (LVH): Markedly increased LV voltages: huge precordial R and S waves that overlap with the adjacent leads (SV2 + RV6 >> 35 mm). R-wave peak time > 50 ms in V5-6 with associated QRS broadening. LV strain pattern with ST depression and T-wave inversions in I, aVL and V5-6. ST elevation in V1-3. Prominent U waves in V1-3.

The most common causes of left ventricular hypertrophy are aortic stenosis, aortic regurgitation, hypertension, cardiomyopathy and coarctation of the aorta. There are several ECG indexes, which generally have high diagnostic specificity but low sensitivity.

2025年3月17日 · Hypertrophic cardiomyopathy is a genetic disease that causes left ventricular hypertrophy, especially septal hypertrophy, in young patients without pressure overload. LVH often progresses to severe and serious complications such as left ventricular outflow tract obstructions, ischemic heart disease or arrhythmias.

2025年2月14日 · Left ventricular hypertrophy (LVH) refers to an increase in the size of myocardial fibers in the main cardiac pumping chamber. Such hypertrophy is usually the response to a chronic pressure or volume load. The two most common pressure overload states are systemic hypertension and aortic stenosis.

2022年1月31日 · Left Ventricular Hypertrophy (LVH) causes tall R waves in left sided and deep S waves in right sided leads. Always look for ‘strain’ pattern in left sided leads.

ECG = electrocardiography; LVH = left ventricular hypertrophy. Brought to you by Merck & Co, Inc., Rahway, NJ, USA (known as MSD outside the US and Canada) — dedicated to using leading-edge science to save and improve lives around the world. Learn more about the MSD Manuals and our commitment to Global Medical Knowledge.

2009年2月19日 · Left ventricular hypertrophy commonly occurs in heart diseases that also cause intraventricular conduction defects or delays (IVCDs). As both LVH and IVCDs alter QRS patterns, the existence of an IVCD may impact the accuracy of ECG criteria for LVH.

The electrocardiographic (ECG) diagnostics of left ventricular hypertrophy (LVH) currently is based primarily on the QRS voltage criteria. However, increased QRS voltage in the setting of actual anatomical left ventricular hypertrophy (LVH) is not a consistent finding, as reflected in a wide range of both sensitivities and specificities of ECG ...

This ECG is from a man with left ventricular hypertrophy. LVH causes taller-than-normal QRS complexes in leads oriented toward the left side of the heart, such as Leads I, II, aVL, V4, V5, and V6. Leads on the opposite side, such as V1, V2, and V3, will have deeper-than-normal S waves.

2021年11月8日 · Hypertrophy refers to an abnormal thickening of a chamber wall. Simply put, this abnormal thickening translates to an increase in the voltage of the QRS complex. Remember: Hypertrophy increases voltage – BBB increases duration. Determining the presence of LVH is a fairly simple and straight forward three-step process.