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Left Ventricular Hypertrophy Left Ventricular Hypertrophy (Example 1) Left Ventricular Hypertrophy (Example 2) Left Ventricular Hypertrophy (Example 3) Left Ventricular Hypertrophy (Example 4) Left Ventricular Hypertrophy (Example 5) Left Ventricular Hypertrophy (Example 6) Left Ventricular Hypertrophy With Strain Pattern (Example 1) Left Ventricular Hypertrophy With Strain Pattern (Example 2) Left Ventricular Hypertrophy With Strain Pattern (Example 3) Left Ventricular Hypertrophy With Strain Pattern (Example 4) Left ventricular hypertophy or LVH can be diagnosed on ECG with good specificity. Through many studies, multiple criteria have been developed to diagnose LVH on ECG which are below: When the myocardium as abnormally
thickened, electricle activity takes longer to traverse throughout the
whole heart, thus the duration of the QRS complex may be widened. This
is referred to as "LVH with QRS widening". Also, repolarization may be
affected via similar mechanisms which can result in abnormal ST
segments or T waves. This is referred to as "LVH with strain" or "LVH
with repolarization abnormality". At times these repolarization
abnormalities can mimic ischemic ST changes, so distinguishing them
from those during a myocardial infarction is important, though often
difficult. The typical pattern with LVH includes deviation of the ST
segment in the opposite direction
of the QRS complex (discordance) and a typical T wave inversion pattern
is present (see below).
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