The ECG will show a premature, ectopic P wave and then no QRS complex afterward. When this occurs in a pattern of bigeminy, the interpreter may be fooled into thinking that sinus bradycardia is ...

Figure 2: An ECG obtained from a beagle dog 21 days later ... Although this group observed VPC runs and bigeminy, most VPCs were single and occurred sporadically 12. We did not initiate ...