intraatrial

in·tra·a·tri·al

(in'tră-ā'trē-ăl),
Within one or both of the atria of the heart.

intraatrial

[in′trə·ä′trē·əl]
Etymology: L, intra + atrium, hall
pertaining to the space or substance within an atrium of the heart.
References in periodicals archive ?
P-wave dispersion represents a noninvasive ECG marker that may reflect the prolongation of intraatrial and interatrial conduction time, as well as the discontinuous inhomogeneous propagation of sinus impulses.
Because prolongation of P wave duration shows left atrial expansion or prolongation of intraatrial conduction as in our series it is an important substrate in the development of AF.
P-wave dispersion (Pd) is related to discontinuous inhomogeneous intraatrial and interatrial sinusoidal stimulations and is defined as a difference between maximum P-wave duration (Pmax) and minimum P-wave duration (P min) (10).
Catheter ablation should also be considered in difficult cases of atrial flutter, intraatrial reentry and automatic atrial tachycardia.
All of these are features of left atrial enlargement or intraatrial block.
Lengthening of intraatrial conduction time in atrial fibrillation and its relation with early recurrence of atrial fibrillation.
By echocardiography, though it can be mistaken for a mass, LHAS is recognized by a characteristic bilobed (dumbbell) brightly echogenic enlargement of the intraatrial septum.
Intraatrial reentrant tachycardia after palliation of congenital heart disease: characterization of multiple macroreentrant circuits using fluoroscopically based three-dimensional endocardial mapping.
To the Editor: Intraatrial reentry tachycardia (IART) has been reported to occur in 2% to 10% of Mustard and Senning patients at 10 years' follow-up.
Electroanatomical studies have demonstrated that scar tissue in the crista terminalis and in the right atrium are not conductive, and that these scar tissues predispose intraatrial reentrant tachyarrhythmias (8, 9).