showing six rhythm strips simultaneously (leads I, II, III, aVR, aVL and aVF). We excluded the dog from surgery due to its abnormal ECG and the increased risk of potentially lethal arrhythmias ...

If you're scheduled to have an electrocardiogram ... known as "normal sinus rhythm:" Your heart is functioning normally with ...

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 ...