How are ECG parameters related to cardiac magnetic resonance images? Electrocardiographic predictors of left ventricular hypertrophy and myocardial fibrosis in hypertrophic cardiomyopathy

Autor: Zsofia Dohy, Andras Vereckei, Viktor Horvath, Csilla Czimbalmos, Liliana Szabo, Attila Toth, Ferenc I. Suhai, Ibolya Csecs, David Becker, Bela Merkely, Hajnalka Vago
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Annals of Noninvasive Electrocardiology, Vol 25, Iss 5, Pp n/a-n/a (2020)
Druh dokumentu: article
ISSN: 1542-474X
1082-720X
DOI: 10.1111/anec.12763
Popis: Abstract Background Structural myocardial changes in hypertrophic cardiomyopathy (HCM) are associated with different abnormalities on electrocardiographs (ECGs). The diagnostic value of the ECG voltage criteria used to screen for left ventricular hypertrophy (LVH) may depend on the presence and degree of myocardial fibrosis. Fibrosis can cause other changes in ECG parameters, such as pathological Q waves, fragmented QRS (fQRS), or repolarization abnormalities. Methods We investigated 146 patients with HCM and 35 healthy individuals who underwent cardiac magnetic resonance imaging (CMR; with late gadolinium enhancement [LGE] in HCM patients) and standard 12‐lead ECGs. On the ECG, depolarization and repolarization abnormalities, the Sokolow–Lyon index, the Cornell index, and the Romhilt–Estes score were evaluated. The left ventricular ejection fraction, volumes, and myocardial mass (LVM) were quantified. Myocardial fibrosis was quantified on LGE images. Results The sensitivity of the Romhilt–Estes score was the highest (75%), and this hypertrophy criterion had the strongest correlation with the LVM index (p
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