Influence of left ventricular type on QT interval in hypertensive patients

Influence of left ventricular type on QT interval in hypertensive patients

Influence of the left ventricular types on QT intervals in hypertensive patients

OBJECTIVE To investigate the possible electrophysiological background of the greater excitability of concentric and eccentric left ventricular hypertrophy types in relation to the asymmetric type. METHODS 187 patients with essential hypertension, without ishaemic heart disease were divided into three groups with regard to left ventricule type: concentric (relative wall thickness >0.42, interv...

QT-interval variability and autonomic control in hypertensive subjects with left ventricular hypertrophy.

Left ventricular hypertrophy is a risk factor for sudden death. Malignant ventricular arrhythmias originate from altered cardiac repolarization. Ample data have described spatial abnormalities in cardiac repolarization [QT interval (QT) dispersion] in subjects with hypertension; more data are needed on temporal changes. This study was designed to assess the QT variability index (QTVI), the slop...

Effects of hypokalemia and left ventricular hypertrophy on QT interval in patients with primary aldosteronism.

Left ventricular diastolic function in essential hypertensive patients: influence of age and left ventricular geometry.

PURPOSE To evaluate diastolic dysfunction (DD) in essential hypertension and the influence of age and cardiac geometry on this parameter. METHODS Four hundred sixty essential hypertensive patients (HT) underwent Doppler echocardiography to obtain E/A wave ratio (E/A), atrial deceleration time (ADT), and isovolumetric relaxation time (IRT). All patients were grouped according to cardiac geomet...