Figure 2: An ECG obtained from a beagle dog 21 days later, showing six rhythm strips simultaneously (leads I, II, III, aVR, aVL and aVF). VPCs are the most frequent type of abnormal rhythm in dogs ...

New options available just in the past year include an iPhone ® (Apple, CA, USA) hardware add-on that can record rhythm strips live, as well as handheld heart rhythm recording devices ...

Lead II is frequently unrepresentative of QRS configurations, especially for arrhythmias. Here, there is atrial bigeminy due to premature atrial complexes. Although the last QRS in lead II is ...