reviews Title : Unfiltered signal averaged P wave analysis - further validation of the method
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Title: Unfiltered signal averaged P wave analysis-further validation of the method Authors:
منابع مشابه
Signal-averaged P wave analysis for delineation of interatrial conduction – Further validation of the method
BACKGROUND The study was designed to investigate the effect of different measuring methodologies on the estimation of P wave duration. The recording length required to ensure reproducibility in unfiltered, signal-averaged P wave analysis was also investigated. An algorithm for automated classification was designed and its reproducibility of manual P wave morphology classification investigated. ...
متن کاملUn ltered signal-averaged P wave analysis { further validation of the method
Background: The study was designed to explore the impact of di erent methodologies on P wave duration estimates. Furthermore, the required recording length to ensure reproducibility from un ltered signal-averaged P wave analysis was investigated. Finally, the reproducibility of P wave morphology classi cation was investigated and an algorithm for automated classi cation was designed. Methods: 1...
متن کاملComparing Electrolytes in Prestorage Leukocyte-Reduced Packed Cell versus Unfiltered Packed Cell
Abstract Background Blood transfusion is associated with side effects caused by residual leukocytes in blood and blood components. Using leukodepleted blood components can decrease some of these adverse effects. Among the various methods to remove leukocytes in blood components, prestorage leukoreduction has been most efficient, but the evidence of clinical side effects awaits further studies...
متن کاملSignal-averaged P wave in patients with paroxysmal atrial fibrillation.
The theoretical and experimental rational of atrial signal-averaged ECG in patients with AF is delay in the intra-atrial and interatrial conduction. Similar to the ventricular signal-averaged ECG, the atrial signal-averaged ECG is an averaging of a high number of consecutive P waves that match the template created earlier P wave triggering is preferred over QRS triggering because of more accura...
متن کاملReproducibility of the signal averaged P wave: time and frequency domain analysis.
OBJECTIVE To assess the reproducibility of time and frequency domain variables derived from the signal averaged P wave. DESIGN Longitudinal within patient study. SETTING Regional cardiothoracic centre. PATIENTS 20 patients (10 with documented paroxysmal atrial fibrillation and 10 normal controls) were studied on three occasions to assess the reproducibility of repeated signal averaged P w...
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تاریخ انتشار 2007