2021
DOI: 10.31083/j.rcm2204170
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The P wave dispersion—one pixel, one millisecond

Abstract: The electrophysiological activity of the heart is recorded and presented in form of electrocardiogram (ECG). In 1998 the concept of P wave dispersion as the risk factor for atrial fibrillation (AF) recurrence was introduced. It was calculated as the difference between the longest and the shortest P wave. The aim of our study is to prove that the P wave dispersion is an artifact of low accuracy in P wave measurement. The study included 186 patients (78M 108F) aged 59.7 ± 12.9 years, undergoing various electroph… Show more

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Cited by 2 publications
(1 citation statement)
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“…Dispersion was then defined as the difference between the 25th and 75th percentiles of the atrial activations duration of each recording. This way, the effect of signal delineation accuracy is minimized and an extremely long or short activation caused by various factors will not affect significantly the results [ 68 ]. Dispersion of EGM recordings was calculated in the same way.…”
Section: Methodsmentioning
confidence: 99%
“…Dispersion was then defined as the difference between the 25th and 75th percentiles of the atrial activations duration of each recording. This way, the effect of signal delineation accuracy is minimized and an extremely long or short activation caused by various factors will not affect significantly the results [ 68 ]. Dispersion of EGM recordings was calculated in the same way.…”
Section: Methodsmentioning
confidence: 99%