Electrocardiographic (ECG) criteria for determining left ventricular mass in young healthy men; data from the LARGE...

Area of Science:

• Cardiology
• Medical Imaging
• Diagnostic Tools

Background:

• Electrocardiogram (ECG) use for detecting increased left ventricular (LV) mass in young individuals is debated.
• Young individuals often meet ECG criteria for LV hypertrophy, but its clinical significance is unclear.
• Cardiovascular magnetic resonance (CMR) offers a non-invasive gold standard for LV mass measurement.

Purpose of the Study:

• To evaluate the accuracy of standard ECG criteria in identifying LV hypertrophy in young males.
• To compare ECG findings with CMR-measured LV mass in a cohort of army recruits.
• To determine the utility of ECG as a screening tool for LV hypertrophy in young, fit males.

Main Methods:

• 101 Caucasian male army recruits (mean age 19.7 years) underwent standard 12-lead ECGs.
• Left ventricular (LV) mass was measured using cardiovascular magnetic resonance (CMR).
• ECG criteria (Cornell, Sokolow-Lyon) were assessed against CMR-defined LV hypertrophy (LV mass indexed to body surface area ≥ 93 g/m²).

Main Results:

• No significant correlation was found between LV mass and Cornell Amplitude or Cornell Product criteria.
• Moderate correlations were observed with Sokolow-Lyon Amplitude (0.28) and Product (0.284).
• Sensitivities for detecting LV hypertrophy were low across all ECG criteria (19.4%–43.4%), with specificities ranging from 61.4%–91.4%.

Conclusions:

• Standard ECG criteria for LV hypertrophy demonstrate limited value in assessing LV mass in young, fit males.
• The findings suggest ECG may not be a reliable tool for diagnosing LV hypertrophy in this demographic.
• CMR provides a more accurate assessment of LV mass compared to ECG in young men.