NDLI: Diagnostic accuracy of extended-length electrocardiogram in differentiating between athlete's heart and hypertrophic cardiomyopathy.

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Diagnostic accuracy of extended-length electrocardiogram in differentiating between athlete's heart and hypertrophic cardiomyopathy.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Caselli, Luigi Galanti, Giorgio Padeletti, Luigi Nieri, Michele Cecchi, Franco Cipollini, Franco Baldi, Massimo Perrotta, Laura Vignini, Simone Michelucci, Antonio
Description	Country affiliation: Italy Author Affiliation: Caselli L ( Sports Medicine Department, Careggi Hospital, University of Florence, Viale Morgagni 85, Florence, Italy. luigicaselli@msn.com)
Abstract	BACKGROUND: Standard 12-lead electrocardiogram (ECG) has several limitations in solving the differential diagnosis between physiologic left ventricular hypertrophy (PLVH) and hypertrophic cardiomyopathy (HCM), given the high rate of false-positive results in athletes. The aim of this study was to assess the usefulness of several arrhythmic risk indexes in differentiating PLVH from HCM. METHODS: A multiparametric ECG analysis (extended-length ECG) was performed on 30 male athletes with PLVH and 30 male patients with HCM, with homogeneous age distribution. RESULTS: The combination of 4 extended-length ECG variables, namely, corrected QT interval (Bazett), QT dispersion, mean resting heart rate, and low-amplitude signal duration at 25 Hz (low-amplitude signal duration at the end of filtered QRS) displayed remarkable diagnostic accuracy (area under receiver operating characteristic curve, 94%). The same accuracy was obtained replacing QT dispersion with T-wave complexity index. CONCLUSIONS: Extended-length ECG can be considered an effective, low-cost, and low time-consuming clinical tool for distinguishing between PLVH and HCM.
File Format	HTM / HTML
ISSN	00220736
Issue Number	6
Volume Number	42
e-ISSN	15328430
Journal	Journal of Electrocardiology
Language	English
Publisher	Elsevier
Publisher Date	2009-11-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Cardiology Athletes Cardiomyopathy, Hypertrophic Diagnosis Diagnosis, Computer-assisted Methods Electrocardiography Hypertrophy, Left Ventricular Adult Aged Diagnosis, Differential Humans Male Middle Aged Reproducibility Of Results Sensitivity And Specificity Comparative Study Journal Article
Content Type	Text
Resource Type	Article
Subject	Cardiology and Cardiovascular Medicine

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