Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Valmik Bhargava"'
Publikováno v:
Journal of the American College of Cardiology. 45:1269-1279
ObjectivesThe aim of this study was to separate isthmus-dependent atrial flutter (IDAFL) from non-isthmus-dependent atrial flutter (NIDAFL) from the electrocardiogram (ECG) based on functional differences.BackgroundThe ECG analyses of F-wave shape su
Publikováno v:
Journal of Cardiovascular Electrophysiology. 14:971-981
Introduction: Separating nonisthmus-dependent atrial flutter (AFL) from “organized” atrial fibrillation (AF), or isthmus-dependent AFL, may be difficult using ECG characteristics alone. We hypothesized that temporal and spatial phase analysis of
Autor:
Valmik Bhargava, Paul L. Wolf, Katsufumi Mizushige, Bruno Cotter, Koji Ohmori, Elisabeth Leistad, Anthony N. DeMaria
Publikováno v:
Circulation. 103:2021-2027
Background —Although defects on intracoronary myocardial contrast echocardiography (MCE) indicate loss of viability after reperfusion, opacified segments may also exhibit persistent dyssynergy. Therefore, we related the intensity and texture of opa
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 270:H1766-H1771
The current concept of ventricular filling in the elasmobranch fish (sharks and rays) is that a subambient pericardial pressure establishes a negative diastolic pressure gradient for the atrium and that ventricular end-diastolic volume is exclusively
Publikováno v:
Computers in Cardiology, 2003.
Distinguishing atrial flutter (AFL) from 'organized' atrial fibrillation (AF) from the ECG is important for optimal therapy, yet remains difficult. We hypothesized that analyzing the temporal and spatial regularity (phase) of ECG F-waves would separa
Autor:
Valmik Bhargava, Sanjiv M. Narayan
Publikováno v:
Computers in Cardiology, 2003.
We hypothesized that ECGs exhibiting a predominant spectral peak reflect temporal regularity, and that waves that maintain their shape between axes reflect spatial regularity, in cardiac activation. We analyzed ECGs of 38 patients at electrophysiolog
Autor:
Valmik Bhargava
Publikováno v:
Journal of Electrocardiology. 27:353-355
Publikováno v:
Journal of Electrocardiology. 18:35-40
Dilated cardiomyopathy is associated with an increase in transverse plane QRS voltage but a decrease in frontal plane QRS voltage. To study this paradoxical relationship further, electrocardiograms (ECGs) were retrospectively analyzed from five group
Autor:
Valmik Bhargava, Ary L. Goldberger
Publikováno v:
Journal of Electrocardiology. 14:57-60
Summary Previous studies based primarily on counts of QRS notches and slurs have suggested that myocardial infarction (MI) increases high frequency QRS components. However, this technique does not quantitatively measure total high frequency voltage.
Autor:
Valmik Bhargava, Ary L. Goldberger
Publikováno v:
Computers and Biomedical Research. 14:399-406
Previous attempts to measure high-frequency QRS potentials have been limited by methodologic difficulties in accurately quantitating these low-amplitude potentials. Therefore, we sought a simple, yet quantitative index of high-frequency ECG voltage.