نتایج جستجو برای: premature ventricular contraction
تعداد نتایج: 256713 فیلتر نتایج به سال:
Left ventricular cineangiograms of 105 patients with chest pain were digitised frame by frame and local endocardial movement displayed in order to study events during isovolumic contraction. Of these patients, 90 had coronary artery disease and the remainder were considered normal. In normal subjects, there was a 6 per cent reduction in cavity area before the onset of aortic valve opening, caus...
This study was performed to determine the relationships among angiographic, hemodynamic, clinical, and electrocardiographic data and premature ventricular contractions (PVCs). Arrhythmias were analyzed by 24 hour Holter monitor in 244 patients evaluated for chest pain by coronary angiography and left ventriculography. Using a categorical linear model, the presence of myocardial fibrosis as indi...
BACKGROUND Left ventricular (LV) dyssynchrony caused by premature ventricular contractions (PVCs) has been proposed as a mechanism of PVC-induced cardiomyopathy. We sought to understand the impact of different PVC locations and coupling intervals (prematurity) on LV regional mechanics and global function of the PVC beat itself. METHODS AND RESULTS Using our premature pacing algorithm, pentage...
Cardiovascular disease remains the main cause of death, and great efforts are spent on the design of ECG (electrocardiogram) body sensors these years. Essential components such as analog frontend and wireless transceivers have been integrated on a compact IC with micro-Watt power consumption. To provide timely warning against the fatal vascular signs, based on the Chaotic Phase Space Differenti...
ABSTRACT: Mitral Valve Prolapse (WVP) in one of the commonest cardiac abnormalities. Echocardiography has generally been accepted as the diagnostic modality of choice, To assess the characteristic symptoms signs and electrocardiographic abnormalities of MVP results of prospective 500 age and sex matched healthy subjects without echocardiographic MVP (control subjects). The diagnostic criteria...
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