2008
DOI: 10.1002/clc.20162
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Assessment of Atrial Electromechanical Coupling and Influential Factors in Nonrheumatic Paroxysmal Atrial Fibrillation

Abstract: SummaryBackground: Sequential analysis of atrial electromechanical coupling (P-A) by Doppler tissue imaging (DTI) might provide important insight into the mechanisms of paroxysmal atrial fibrillation (PAF).Hypothesis: The purpose of this study was to evaluate P-A and the dispersion of P-A, and to analyze the influential factors of P-A.Methods: One hundred and ten patients with PAF and 87 normal controls were enrolled. Using DTI, the time intervals from the beginning of P-wave to the onset of atrioventricular r… Show more

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Cited by 125 publications
(168 citation statements)
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References 15 publications
(15 reference statements)
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“…Interatrial electromechanical delay measured by TDI was well correlated with P dispersion calculated by surface ECG. These results are in accordance with Emiroglu et al (18) The prolongation of intraatrial and interatrial electromechanical delays and the inhomogeneous propagation of sinus impulses are well-known electrophysiologic characteristics of the atria prone to fibrillation (11,12). P wave dispersion is related to the inhomogenous and interrupted conduction of sinus impulses, intraatrially and interatrially (12).…”
Section: Discussionsupporting
confidence: 90%
See 1 more Smart Citation
“…Interatrial electromechanical delay measured by TDI was well correlated with P dispersion calculated by surface ECG. These results are in accordance with Emiroglu et al (18) The prolongation of intraatrial and interatrial electromechanical delays and the inhomogeneous propagation of sinus impulses are well-known electrophysiologic characteristics of the atria prone to fibrillation (11,12). P wave dispersion is related to the inhomogenous and interrupted conduction of sinus impulses, intraatrially and interatrially (12).…”
Section: Discussionsupporting
confidence: 90%
“…Fibrosis and enlarged left atrial tissue prolong and divert the propagation of the action potential in left atrial tissue and cause multiple micro reentries resulting in AF (10). The prolongation of intraatrial and interatrial electromechanical delays (EMD) and the inhomogeneous propagation of sinus impulses are well-known electrophysiologic characteristics of the atria prone to fibrillation (11). P wave dispersion is related to the inhomogenous and interrupted conduction of sinus impulses, intraatrially and interatrially (12).…”
Section: Introductionmentioning
confidence: 99%
“…In some studies, a relationship between LA diameter and interatrial electromechanical delay has been found (20)(21)(22)(23)(24)(25). Such a relation was observed in our study.…”
Section: Discussionsupporting
confidence: 87%
“…This issue has been evaluated non-invasively by several alternative techniques such as P-wave dispersion and tissue Doppler imaging (TDI) [7,8]. However, data on the potential relationship between atrial EMD evaluated by TDI, atrial electrophysiological changes and AF promotion are sparse.…”
Section: Introductionmentioning
confidence: 99%