There are several possibilities to consider when this occurs.
- Structural changes in the heart have not yet affected conduction. When the cardiac structure is abnormal to the extent that the heart must be “remodeled” to maintain basic function, it may be reflected in cardiac rhythm and conduction, and it is necessary to monitor the electrocardiogram to make sure that conduction and rhythm are normal.
- If the animal is currently under treatment for heart disease, the treatment outcome may also be reflected in the control of heart rate and rhythm.
- The associated abnormalities are not continuous and are not caught by the test. In case of doubt, a diagnostic or 24-hour ECG may be needed for observation.
For structural changes, it is recommended to use echocardiography as the gold standard for diagnosis. ECG can be used to evaluate the rhythm and conduction changes in the course of the disease. Such that the condition of the patient’s heart can be monitored comprehensively.
(The condition for every patient varies, please correlate clinically)