Applicability of the Electro-Vectorcardiogram in Current Clinical Practice

Arquivos Brasileiros de Cardiologia. DOI 10.5935/abc.20190095


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Journal Title: Arquivos Brasileiros de Cardiologia

ISSN: 0066-782X (Print); 1678-4170 (Online)

Publisher: Sociedade Brasileira de Cardiologia (SBC)

Society/Institution: Sociedade Brasileira de Cardiologia

LCC Subject Category: Medicine: Internal medicine: Specialties of internal medicine: Diseases of the circulatory (Cardiovascular) system

Country of publisher: Brazil

Language of fulltext: English, Portuguese

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Carlos Alberto Pastore

Nelson Samesima

Horacio Gomes Pereira Filho

Nancy Maria Martins de Oliveira Tobias

Bruna Affonso Madaloso

Mirella Esmanhotto Facin


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Time From Submission to Publication: 10 weeks


Abstract | Full Text

Abstract The electrocardiogram (ECG) has been reinvigorated by the identification of electrical alterations that were not definitely clarified before. In this context, and mainly regarding the definition of arrhythmogenic substrates, the association of the ECG with the vectorcardiogram (VCG) has gathered much more information about the cardiac electrical phenomena, thus allowing us to differentiate potentially fatal cases from benign ones. Obtaining a VCG concomitantly with the performance of an ECG has led to a significant gain in the definition of extremely sophisticated pathologies, which function suffer some type of structural or dynamic alterations, involving either the reduction or enhancement of ionic channels and currents. The classic aspects of the ECG/VCG association in the differential diagnosis of myocardial infarctions, conduction disorders, atrial and ventricular hypertrophies, and the correlations between these electrical disorders are still valid and assertive. The association of these pathologies is further clarified when they are seen through the ECG/VCG dyad. The three-dimensional spatial orientation of both the atrial and the ventricular activity provides a far more complete observation tool than the ECG linear form. The modern analysis of the ECG and its respective VCG, simultaneously obtained by the recent technique called electro-vectorcardiogram (ECG/VCG), brought a significant gain for the differential diagnosis of some pathologies. Therefore, we illustrate how this type of analysis can elucidate some of the most important diagnoses found in our daily clinical practice as cardiologists.