Why the study?
Do ECG criteria combining voltages in two leads improve sensitivity for detecting left ventricular hypertrophy compared to single voltage criteria in patients with eccentric or concentric LVH?
Do ECG criteria combining voltages in two leads improve sensitivity for detecting left ventricular hypertrophy compared to single voltage criteria in patients with eccentric or concentric LVH?
ECG criteria combining voltages from two leads, such as the Cornell criteria, offer better sensitivity for detecting left ventricular hypertrophy regardless of left ventricular geometry.
The effect of left ventricular volume (LVV) in relation to the left ventricular mass (LVM) was studied on the voltage electrocardiography (ECG) criteria of left ventricular hypertrophy (LVH). For this purpose, the sensitivity of numerous voltage criteria were assessed in patients with documented echocardiographic (echo) LVH with or without left ventricular dilatation. The ECG criteria that combined voltages in two leads were more sensitive than when a single voltage criterion was utilized. There was no characteristic pattern of increased voltages to differentiate between eccentric and concentric subtypes of LVH. However, the Cornell criteria were less affected by the LV geometry for detecting LVH with or without LV dilatation. This is probably due to the fact that they utilize the voltages in a precordial and a limb lead.
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Huwez et al. (2003) studied this question.
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