Correlation of electrocardiographic left ventricular hypertrophy criteria with left ventricular mass by echocardiogram in obese hypertensive patients

Prevalence of electrocardiographic left ventricular hypertrophy in human hypertension

“…Obesity has been shown to differently impact the diagnostic accuracy of ECG [41]. In a recent study conducted in 852 nonobese and 352 obese hypertensive patients, the Sokolow-Lyon voltage had a reduced sensitivity in obese individuals, whereas the Cornell voltage and Cornell product overall exhibited a similar diagnostic accuracy in both groups [42]. A further limitation of the Sokolow-Lyon criterion is the lack of sex specificity, at variance from the Cornell voltage and Cornell voltageproduct one.…”

Sensibilidade do eletrocardiograma na hipertrofia ventricular de acordo com gênero e massa cardíaca

“…Hence, the importance of its detection by low-cost and easy-to-apply diagnostic methods in large populations, as well as the knowledge of interference in specific populations, as in the case of the male and female genders, the obese, the elderly and smokers 6,[19][20][21] . The LVH usually leads to an increase in the QRS complex amplitude, and, consequently, the electrical forces shift to the left and posteriorly, originating deep S waves in the right precordial leads.…”

Relation of central and brachial blood pressure to left ventricular hypertrophy. The Czech Post-MONICA Study

“…17 On the other hand, in older subjects, a modest association between ECG parameters of LVH and left ventricular mass detected by echocardiography was found. 22,23 This indicates that the amplitude criteria of LVH have little practical use in detecting LVH in young subjects. Neither from previous studies nor from ours is it clear at what age ECG signs of LVH start to be associated with BP and LVH determined by echocardiography or magnetic resonance.…”