Correlation of electrocardiographic changes with cardiac magnetic resonance findings in patients with hypertrophic cardiomyopathy

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dc.creatorGabriela Miana de Mattos Paixão
dc.creatorHorácio Eduardo Veronesi
dc.creatorHalsted Alarcão Gomes Pereira da Silva
dc.creatorJosé Nunes de Alencar Neto
dc.creatorCarolina de Paulo Maldi
dc.creatorLuciano de Figueiredo Aguiar Filho
dc.creatorIbrahim Masciarelli Francisco Pinto
dc.creatorFrancisco f. de a. c. de França
dc.creatorEdileide de Barros Correia
dc.date.accessioned2023-10-23T19:35:38Z
dc.date.accessioned2025-09-08T23:45:43Z
dc.date.available2023-10-23T19:35:38Z
dc.date.issued2018
dc.format.mimetypepdf
dc.identifier.doi10.5935/abc.20170189
dc.identifier.issn0066782X
dc.identifier.urihttps://hdl.handle.net/1843/59847
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofArquivos Brasileiros de Cardiologia
dc.rightsAcesso Aberto
dc.subjectCardiomyopathy, Hypertrophic
dc.subjectElectrocardiography
dc.subjectMagnetic Resonance Spectroscopy
dc.subject.otherHypertrophic cardiomyopathy
dc.subject.otherElectrocardiography
dc.subject.otherMagnetic Resonance Spectroscopy
dc.titleCorrelation of electrocardiographic changes with cardiac magnetic resonance findings in patients with hypertrophic cardiomyopathy
dc.typeArtigo de periódico
local.citation.epage59
local.citation.issue1
local.citation.spage52
local.citation.volume110
local.description.resumoBackground: Electrocardiogram is the initial test in the investigation of heart disease. Electrocardiographic changes in hypertrophic cardiomyopathy have no set pattern, and correlates poorly with echocardiographic findings. Cardiac magnetic resonance imaging has been gaining momentum for better assessment of hypertrophy, as well as the detection of myocardial fibrosis.Objectives: To correlate the electrocardiographic changes with the location of hypertrophy in hypertrophic cardiomyopathy by cardiac magnetic resonance. Methods: This descriptive cross-sectional study evaluated 68 patients with confirmed diagnosis of hypertrophic cardiomyopathy by cardiac magnetic resonance. The patients’ electrocardiogram was compared with the location of the greatest myocardial hypertrophy by cardiac magnetic resonance. Statistical significance level of 5% and 95% confidence interval were adopted.Results: Of 68 patients, 69% had septal hypertrophy, 21% concentric and 10% apical hypertrophies. Concentric hypertrophy showed the greatest myocardial fibrosis mass (p < 0.001) and the greatest R wave size in D1 (p = 0.0280). The amplitudes of R waves in V5 and V6 (p = 0.0391, p = 0.0148) were higher in apical hypertrophy, with statistical significance. Apical hypertrophy was also associated with higher T wave negativity in D1, V5 and V6 (p < 0.001). Strain pattern was found in 100% of the patients with apical hypertrophy (p <0.001).Conclusion: The location of myocardial hypertrophy by cardiac magnetic resonance can be correlated with electrocardiographic changes, especially for apical hypertrophy. (Arq Bras Cardiol. 2018; 110(1):52-59)
local.publisher.countryBrasil
local.publisher.departmentMEDICINA - FACULDADE DE MEDICINA
local.publisher.initialsUFMG
local.url.externahttps://doi.org/10.5935/abc.20170189

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