Detection of left ventricular hypertrophy by the R-wave voltage in lead aVL: population-based study

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art_PEREIRA_Detection_of_left_ventricular_hypertrophy_by_the_R_2013.PDF (284.75 KB)
Citações na Scopus
14
Tipo de produção
article
Data de publicação
2013
DOI
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
SPRINGER HEIDELBERG
Autores
RODRIGUES, Sergio Lamego
ANGELO, Lilian Claudia Souza
BALDO, Marcelo Perim
DANTAS, Eduardo Miranda
BARCELOS, Alexandre Maulaz
MILL, Jose Geraldo
Citação
CLINICAL RESEARCH IN CARDIOLOGY, v.102, n.9, p.653-659, 2013
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
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. 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. 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. 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.
Palavras-chave
Echocardiography, Electrocardiography, Left ventricular hypertrophy
URI
https://observatorio.fm.usp.br/handle/OPI/3963
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MCP
Artigos e Materiais de Revistas Científicas - HC/InCor
Artigos e Materiais de Revistas Científicas - LIM/13