Normal sinus rhythm Non-specific interventricular conduction delay Left atrial enlargement Fusion beats This ECG shows a wide-QRS complex which does not meet criteria for a right or left bundle ...

There were 678 total deaths (307 of 1,641 patients [18.7 percent] with a normal baseline QRS duration and 371 of 1,321 [28.1 percent] with a prolonged baseline QRS duration).

The axis is normal between 0° and +90° (positive QRS complex in leads I and aVF). The QT/QTc intervals are prolonged (420/480 msec) but are normal when the prolonged QRS complex interval is ...

Tremor can cause ECG artifacts that mimic a broad QRS complex tachycardia. 1 Characteristics allowing differentiation from a broad QRS complex tachycardia include the finding of normal QRS complexes ...

The patient was then asked to stand erect and the tracing immediately repeated (Fig. 5). This simple maneuver increased the heart rate to 136 per minute, and QRS-complex conduction returned to normal.

Furthermore, the current task force criteria for arrhythmogenic cardiomyopathy mainly focuses on end-QRS ECG abnormalities (Marcus et al., 2010). However, depending on the location of the substrate ...

This ECG shows a normal QRS complex with runs of a narrow complex tachycardia. There appear to be P waves present before the QRS complexes, however not of normal sinus morphology suggesting an ...