The EKG in the patient treated with encainide, flecainide and propafenone

Electrocardiographic Findings

 * 1) Prolong the PR and the QRS
 * 2) Propafenone may also slow the sinus rate due to its β-blocking effects

Additional resources

 * ECGpedia: Course for interpretation of ECG
 * The whole ECG - A basic ECG primer
 * 12-lead ECG library
 * Simulation tool to demonstrate and study the relation between the electric activity of the heart and the ECG
 * ECG information from Children's Hospital Heart Center, Seattle
 * ECG Challenge from the ACC D2B Initiative
 * National Heart, Lung, and Blood Institute, Diseases and Conditions Index
 * A history of electrocardiography
 * EKG Interpretations in infants and children