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 ...

Presently available noninvasive rhythm recording options include the ECG, the Holter monitor ... hardware add-on that can record rhythm strips live, as well as handheld heart rhythm recording ...