BACKGROUND: According to hypertension guidelines, the recommended electrocardiographic (ECG) diagnostic criteria for left ventricular hypertrophy (LVH) are the Sokolow-Lyon and Cornel voltage criteria, both with general acceptance by primary care physicians. However, it was recently reported that the R-wave voltage in lead aVL (RaVL) was as good as other more complicated and time-consuming ECG criteria to detect LVH in hypertensive patients. Therefore, our aim was to investigate if the ability of the RaVL to identify echocardiographic left ventricular hypertrophy (ECHO-LVH) could be translated to the general population, a more realistic assessment of its utility in a nonreferral setting. METHODS: 682 participants (43.5 % males), aged between 27 and 72 years from the urban population of Vitoria, ES, Brazil, were enrolled. We investigated the association of ECHO-LVH (LV mass >51 g/Ht(2.7)) with several ECG voltage measurements: Sokolow-Lyon and Cornel criteria, S-wave voltage in lead V3 (SV3) and RaVL. RESULTS: The RaVL showed the best positive correlation with LV mass indexed to Ht(2.7), superior to both Cornell and Sokolow-Lyon criteria and was not influenced by gender. Analysis of the ROC curves showed that the RaVL depicted a significant superior performance in relation to all the other measurements in the ability to detect ECHO-LVH. SV3 was not correlated with LV mass. Thus, it seems that most of Cornell's performance depends on its simplified version, that is, RaVL. CONCLUSION: We have shown that the simple and single assessment of RaVL presented a greater diagnostic ability in detecting ECHO-LVH in the general population, signaling its value mainly as a screening tool.
BACKGROUND: According to hypertension guidelines, the recommended electrocardiographic (ECG) diagnostic criteria for left ventricular hypertrophy (LVH) are the Sokolow-Lyon and Cornel voltage criteria, both with general acceptance by primary care physicians. However, it was recently reported that the R-wave voltage in lead aVL (RaVL) was as good as other more complicated and time-consuming ECG criteria to detect LVH in hypertensivepatients. Therefore, our aim was to investigate if the ability of the RaVL to identify echocardiographic left ventricular hypertrophy (ECHO-LVH) could be translated to the general population, a more realistic assessment of its utility in a nonreferral setting. METHODS: 682 participants (43.5 % males), aged between 27 and 72 years from the urban population of Vitoria, ES, Brazil, were enrolled. We investigated the association of ECHO-LVH (LV mass >51 g/Ht(2.7)) with several ECG voltage measurements: Sokolow-Lyon and Cornel criteria, S-wave voltage in lead V3 (SV3) and RaVL. RESULTS: The RaVL showed the best positive correlation with LV mass indexed to Ht(2.7), superior to both Cornell and Sokolow-Lyon criteria and was not influenced by gender. Analysis of the ROC curves showed that the RaVL depicted a significant superior performance in relation to all the other measurements in the ability to detect ECHO-LVH. SV3 was not correlated with LV mass. Thus, it seems that most of Cornell's performance depends on its simplified version, that is, RaVL. CONCLUSION: We have shown that the simple and single assessment of RaVL presented a greater diagnostic ability in detecting ECHO-LVH in the general population, signaling its value mainly as a screening tool.
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