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 ...

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 ...