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Longitudinal Left Ventricular Strain in Hypertrophic Cardiomyopathy: Correlation with Nonsustained Ventricular Tachycardia

2011; Wiley; Volume: 28; Issue: 7 Linguagem: Inglês

10.1111/j.1540-8175.2011.01427.x

1540-8175

Emanuel Peres, Bruno Rodrigues, Luís Ferreira dos Santos, Davide Moreira, Pedro Gama, Costa Cabral, Oliveira Santos,

Cardiovascular Effects of Exercise

EchocardiographyVolume 28, Issue 7 p. 709-714 Longitudinal Left Ventricular Strain in Hypertrophic Cardiomyopathy: Correlation with Nonsustained Ventricular Tachycardia Emanuel Correia M.D., Emanuel Correia M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorBruno Rodrigues M.D., Bruno Rodrigues M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorLuís Ferreira Santos M.D., Luís Ferreira Santos M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorDavide Moreira M.D., Davide Moreira M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorPedro Gama M.D., Pedro Gama M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorCosta Cabral M.D., Costa Cabral M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorOliveira Santos M.D., Oliveira Santos M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this author Emanuel Correia M.D., Emanuel Correia M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorBruno Rodrigues M.D., Bruno Rodrigues M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorLuís Ferreira Santos M.D., Luís Ferreira Santos M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorDavide Moreira M.D., Davide Moreira M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorPedro Gama M.D., Pedro Gama M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorCosta Cabral M.D., Costa Cabral M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this authorOliveira Santos M.D., Oliveira Santos M.D. Hospital S. Teotónio, Viseu, PortugalSearch for more papers by this author First published: 12 May 2011 https://doi.org/10.1111/j.1540-8175.2011.01427.xCitations: 28 Emanuel Correia, M.D., Serviço de Cardiologia, Hospital S. Teotónio, Av. Rei D. Duarte, 3504 509 Viseu, Portugal. Fax: 232-420-591; E-mail: emanuelbaptista@gmail.com Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Aims: Stratifying risk of sudden death is a major issue in the management of hypertrophic cardiomyopathy (HCM). Existing risk factors have low positive predictive value and new parameters are needed. Determination of myocardial deformation (strain) by 2D Speckle tracking is a new methodology for determining LV regional function and could correlate with myocite disarray and fibrosis. The aim of this study was to assess the relationship between strain analysis and nonsustained ventricular tachycardia (NSVT) in patients with HCM. Methods: Thirty-two consecutive patients with HCM (mean age 55, 17–78) were studied. All underwent standard echocardiographic and two-dimensional strain examination. Twenty-four-hour Holter monitoring was performed and echocardiographic parameters were correlated with NSVT. Results: Nine patients (28%) had one or more episodes of NSVT. Patients with NSVT had a higher value of maximal LV thickness (23.6 mm vs. 19.4 mm, P = 0.027). There were no significant associations between NSVT on Holter monitoring and LV outflow gradient left atrial diameter, E/Em or left ventricle ejection fraction. Patients with HCM and NSVT had significant reductions in mid septal, apical-septal, apical-lateral strain, and in mean longitudinal strain. Midseptal strain >–10.5% had a sensitivity of 89% and a specificity of 74% (area under the curve, 0.787; P < 0.0013) for predicting NSVT independently of age or maximum wall thickness. Conclusion: Lower end-systolic peak longitudinal strain obtained by 2D speckle tracking was a predictor of NSVT in HCM patients. This parameter could become a useful tool in stratifying SCD risk in this population. (Echocardiography 2011;28:709-714) Citing Literature Volume28, Issue7August 2011Pages 709-714 RelatedInformation