Correlation between vectorcardiographic measures and cardiac magnetic resonance imaging of the left ventricle in an implantable cardioverter defibrillator population.
J Electrocardiol
; 47(1): 52-8, 2014.
Article
em En
| MEDLINE
| ID: mdl-23993862
ABSTRACT
BACKGROUND:
Measures of vectorcardiographic changes and LV remodelling have been associated with arrhythmic risk. However the correlation between the two modalities is not well characterised.METHODS:
We correlated spatial QRS-T angle and ventricular gradient with cardiac MRI derived LV global measures and scar pattern in 66 ICD recipients.RESULTS:
Spatial QRS-T angle was significantly larger in patients with ischaemic scar than those without scar (150°±22° vs. 119°±46°, p=0.01). Larger spatial QRS-T angle was also correlated with more depressed LV function, more dilated LV and larger LV mass. Ventricular gradient azimuth was significantly different between patients with no scar, non-ischaemic scar and ischaemic scar (20°±49° vs. 38°±62° vs. 65°±48°, p=0.009), but independent of spatial QRS-T angle and LV structure.CONCLUSIONS:
Spatial QRS-T angle and ventricular gradient are partially related to LV structural properties. Further investigation is warranted to examine their comparative and combined prognostic value in risk stratification of ventricular arrhythmias.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Vetorcardiografia
/
Desfibriladores Implantáveis
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Disfunção Ventricular Esquerda
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Imagem Cinética por Ressonância Magnética
Tipo de estudo:
Clinical_trials
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Diagnostic_studies
/
Prognostic_studies
Limite:
Female
/
Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article