Ventricular extrasystoles P waveP wave detectionPathological ECG signalThis work introduces a new method for P wave detection in ECG signals during ventricular extrasystoles. The authors of previous works which deal with detection of P waves tested their algorithms......
New Concepts in ECG Interpretation This book elucidates a number of new concepts on P-wave evaluation and QRS depolarization properties, and reports on several repolarization findings never covered in previous ECG books. The content is primarily based on case reports, som... A Capucci 被引量: 0...
Standard six-lead ECGs (leads I, II, III, aVR, aVL and aVF) were recorded using a Philips Pagewriter TC30 ECG machine (Royal Philips Electronics, Eindhoven Area, The Netherlands) with dogs placed in right lateral recumbency. All ECGs were recorded with a calibration of 1 cm mV−1an...
(but totally dissimilar in another). The ECG features favoring ventricular extrasystoles over aberrantlyconducted atrial extrasystoles include (1) wide QRS morphology, (2) a full compensatory pause, (3) presence of fusion beats, and (4) absence of a discernible premature P wave. In ...
Since postextrasystolic repolarization changes of VPBs were first reported by P.D.White in 1915 [10], a lot of studies have been attempted to reveal its clinical value [[11], [12], [13], [14]]. At present, it is believed that changes in the U wave after VPBs are associated with...
HHMD inflates and deflates the cuff slowly (6 mmHg/s) and records also ECG and photoplethysmographic signal (PPG) at both index fingertips. Among other parameters the pulse wave transit time, PWTT is calculated. Occlusion with the cuff causes a temporary alteration in the dynamic parameters ...
The present invention relates to a method for predicting cardiac risk and / or recurrence comprising, after the steps of selecting at least one wave of an electrocardiogram (ECG), segmentation of said wave, parameterization of said selected wave of an electrocardiogram in several parameters, ...
ECGBackground: Changes in U-wave amplitude after premature ventricular contractions (PVC) are known as prognostic markers in the long QT syndrome dependent on bradycardia. The purpose of the study was to find correlation between postextrasystolic ST-U segment changes and a history of sustained ...
Transcutaneous oxygen saturation and PCO2, together with ECG were continuously monitored. Pulmonary artery blood flow velocity was measured non-invasively using pulsed wave Doppler. The 95% confidence intervals for the changes with and without CNEP in spontaneously breathing and ventilated patients showed ...
Intravenous infusion of KC1 at a rate of 1.22 or 2.45 mEq per minute to anesthetized dogs frequently resulted in complete A-V block at a time when P waves were still recorded in the ECG. Furthermore, some of the observations suggest that in hyperkalemia a regular idioventricular rhythm may...