Please click here to obtain permission to reproduce this image.
Click on image to view larger version.
Figure 1 The figure shows the syncopal event observed in Patient no. 1. (A) Heart rate trend during the whole 21-min loop recording. The heart rate is initially stable at  80 beats/min and then suddenly falls at the time of syncope. (B) Expanded electrocardiographic recording at the time of the syncopal event. The onset of atrioventricular block is sudden, with no change in the PP interval; the main pause lasted 12 s.
|
