However, if “variable conduction” of the atrial flutter waves to the ventricles is present, the QRS complexes can be ... There was no difference in mortality between these approaches; thus ...

The three irregularly irregular rhythms are atrial fibrillation, atrial flutter with variable ... with aberrancy. If no P waves can be seen and the QRS complexes are irregularly irregular, then ...

No episodes ... During atrial overdrive pacing at a cycle length of 420 ms, the following EKG was recorded (Fig. 1). What is the mechanism for the progressive widening of QRS complexes and for ...

Purpose. A case of fatal retroperitoneal hematoma that developed after enoxaparin administration in a woman with paroxysmal atrial flutter and chest pain is reported. Summary. A 63-year-old ...