What is Digoxin use on ECG?

Digoxin use on an electrocardiogram (ECG) can show characteristic changes known as the "Digoxin effect." These changes include an increase in the duration of the PR interval (PR prolongation) and a reduction in the heart rate. These effects are due to Digoxin's ability to slow down the electrical conduction through the atrioventricular (AV) node, resulting in a slower heart rate and delayed conduction between the atria and ventricles. The presence of these changes on an ECG can help indicate the use or effect of Digoxin in a patient.