2024年10月8日 · ECG Pearl There are no universally accepted criteria for diagnosing RVH in the presence of RBBB; the standard voltage criteria do not apply. However, the presence of incomplete / complete RBBB with a tall R wave in V1, right axis deviation of +110° or more and supporting criteria (such as RV strain pattern or P pulmonale) would be considered ...

ECG changes seen in left ventricular hypertrophy (LVH) and right ventricular hypertrophy (RVH). The electrical vector of the left ventricle is enhanced in LVH, which results in large R-waves in left-sided leads (V5, V6, aVL and I) and deep S-waves in right-sided chest leads (V1, V2).

2019年6月14日 · LVH and RVH are anatomic conditions and ECGs do not determine anatomy. There are several “rules” that help evaluate for abnormally large voltages on the pediatric ECG. Most are complicated and less practical. If R wave of V6 intersects with baseline of V5, then that is abnormal. Upright T wave in V1?

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.

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.

Left Ventricular Hypertrophy (LVH) General ECG features include: ≥ QRS amplitude (voltage criteria; i.e., tall R-waves in LV leads, deep S-waves in RV leads)

In RVH, an echocardiogram may show thickening of the right ventricular muscle, and enlargement of the right ventricular cavity. Color flow doppler helps identify and quantify tricuspid regurgitation, which is often present.

2018年7月1日 · The presence of QRS widening with resultant secondary repolarization changes in the ST-T wave may produce an ECG picture that simulates RBBB, LBBB, IVCD, LVH, RVH, and/or myocardial infarction or ischemia.

2013年8月8日 · The accuracy (specificity) for the ECG diagnosis of LVH can be greatly increased — IF in addition to satisfying one or more voltage criteria, ST-T wave changes of "LV strain" are also present (See Figure-3 below). The Clinical History helps in assessing for LVH.

Right ventricular hypertrophy occurs when the right ventricular wall thickens due to chronic pressure overload, similar to that of left ventricular hypertrophy. RVH is diagnosed on ECG in the...