In this example a typical Wenckebach sequence is interrupted by what looks like a PAC - indicated by red arrows. Atrial echos are more likely, however, because the preceding beat has a long PR interval, a condition that facilitates reentry and echo formation
Cardiac sonographers often perceive premature beats as a limiting factor during echocardiography bec...
The atrial rhythm was studied in 38 patients during runs of tachycardia of five or more beats in seq...
In 25 cases at open heart surgery, atrial and ventricular close bipolar electrograms, an atrial unip...
Retrograde atrial captures from an accelerated ventricular focus are occurring with increasing R-P i...
This example illustrates 2nd degree sino-atrial exit block. In type 1 S-A block the conduction time...
The arrow indicates slight alteration of the ST-T wave by a PAC. The PAC, in turn, falls during the...
His bundle recordings during spontaneous and induced episodes of paroxysmal supra-ventricular tachyc...
A case of atrial flutter is reported in which the hearing of "systoles en echo " led to th...
The ectopic P waves, easily seen in this example,occur in groups, separated by short pauses. This i...
Although most PACs reset the sinus node producing an incomplete compensatory pause, this PAC, indica...
Retrograde atrial captures from a ventricular paced rhythm are occurring with increasing R-P interva...
<p>(A) Different stimulated points (circle) and tip of re-entry across the surface of the atria (i),...
Sa wave of tissue Doppler imaging correlates with ventricular systole (QRS-T of electrocardiogram). ...
The ectopic atrial rate is 150 bpm. Some of the ectopic P waves are easily seen and indicated by the...
This 12-lead ECG shows a subtle bigeminal rhythm resulting from atrial flutter with a 3:2 AV conduct...
Cardiac sonographers often perceive premature beats as a limiting factor during echocardiography bec...
The atrial rhythm was studied in 38 patients during runs of tachycardia of five or more beats in seq...
In 25 cases at open heart surgery, atrial and ventricular close bipolar electrograms, an atrial unip...
Retrograde atrial captures from an accelerated ventricular focus are occurring with increasing R-P i...
This example illustrates 2nd degree sino-atrial exit block. In type 1 S-A block the conduction time...
The arrow indicates slight alteration of the ST-T wave by a PAC. The PAC, in turn, falls during the...
His bundle recordings during spontaneous and induced episodes of paroxysmal supra-ventricular tachyc...
A case of atrial flutter is reported in which the hearing of "systoles en echo " led to th...
The ectopic P waves, easily seen in this example,occur in groups, separated by short pauses. This i...
Although most PACs reset the sinus node producing an incomplete compensatory pause, this PAC, indica...
Retrograde atrial captures from a ventricular paced rhythm are occurring with increasing R-P interva...
<p>(A) Different stimulated points (circle) and tip of re-entry across the surface of the atria (i),...
Sa wave of tissue Doppler imaging correlates with ventricular systole (QRS-T of electrocardiogram). ...
The ectopic atrial rate is 150 bpm. Some of the ectopic P waves are easily seen and indicated by the...
This 12-lead ECG shows a subtle bigeminal rhythm resulting from atrial flutter with a 3:2 AV conduct...
Cardiac sonographers often perceive premature beats as a limiting factor during echocardiography bec...
The atrial rhythm was studied in 38 patients during runs of tachycardia of five or more beats in seq...
In 25 cases at open heart surgery, atrial and ventricular close bipolar electrograms, an atrial unip...