The importance of frontal QRS-T angle for predicting non-dipper status in hypertensive patients without left ventricular hypertrophy.
Clin Exp Hypertens
; 40(4): 318-323, 2018.
Article
em En
| MEDLINE
| ID: mdl-28949780
ABSTRACT
BACKGROUND:
Frontal QRS-T angle is a novel marker of myocardial repolarization, and an increased frontal QRS-T angle associated with adverse cardiac outcomes. Non-dipper hypertension is also associated with adverse cardiac outcomes. This study aimed to investigate the relationship between frontal QRS-T angle and non-dipper status in hypertensive patients without left ventricular hypertrophy (LVH).METHODS:
This study included 122 hypertensive patients without LVH. Patients were divided into two groups dipper hypertension and non-dipper hypertension. The frontal QRS-T angle was calculated from 12-lead electrocardiography.RESULTS:
Frontal QRS-T angle (47.9° ± 29.7° vs. 26.7° ± 19.6°, P < 0.001) was significantly higher in patients with non-dipper hypertension than in patients with dipper hypertension. In addition, frontal QRS-T angle was positively correlated with sleeping systolic (r = 0.211, P = 0.020), and diastolic (r = 0.199, P = 0.028) blood pressures (BP), even if they were weak. Multivariate analysis showed that the frontal QRS-T angle was independent predictor of non-dipper status (QR 1.037, 95% CI 1.019-1.056, P < 0.001).CONCLUSION:
Frontal QRS-T angle is independent predictor of non-dipper status in hypertensive patients without LVH.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Pressão Sanguínea
/
Ritmo Circadiano
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Coração
/
Hipertensão
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Adult
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Aged
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article