intra-atrial conduction

intra-atrial conduction

n.
The conduction of the cardiac impulse through the atrial muscle tissue, represented by the P wave. Also called atrial conduction.
References in periodicals archive ?
(6) on pediatric patients with hypothyroidism, we aimed to evaluate ventricular diastolic function, inter- and intra-atrial conduction delay and P wave dispersion in pediatric patients with type 1 DM.
Patients with type 1 DM were found to exhibit a significantly prolonged PA lateral, PA septum, PA tricuspid, inter-atrial (PA lateral-PA tricuspid) and intra-atrial conduction delay (PA septum-PA tricuspid) in comparison to the control group (p<0.001, p<0.001, p=0.001, p<0.001, p<0.001, respectively) (Table 3).
We speculated that [P.sub.d] may be more dependent on inter and intra-atrial conduction disturbances as well as an inhomogeneous conduction of electrical impulses than the degree of left atrial dilatation itself.
PWD and left intra-atrial conduction time detected by TDE were found to be independent predictors of inducibility of sustained atrial fibrillation in their study.
[sup][11] These changes may lead to the inter- and intra-atrial conduction heterogeneity and dispersion of the atrial refractory period/velocity, providing the substrate for AF, thus may underlie the prolongation of P [sub]d .
Fibrosis of the atrial tissue leads intra-atrial conduction disturbances.
The slowing of intra-atrial conduction is considered to be one of the key factors for the formation of reentry, which is necessary for the induction of AF Also, [Na.sup.+] current (INa) is essential for conduction of the electrical impulses (6).
Any decrease of intra-atrial conduction time is considered to be one of the most important factor for the formation of reentry, which is necessary for the induction of AF (3, 4).

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