A 78-year-old man with syncope

A 78-year-old man came to the emergency department after a syncopal episode while shopping with his wife. The wife indicated that he suffered from myocardial infarction 2 years ago and complained about dizziness for about 2 weeks. His 12-lead electrocardiogram (ECG) recorded in the emergency department is shown in Figure  1A. In view of the history and the 12-lead ECG, a pacemaker lead was placed into the apex of the right ventricle. Shortly thereafter Figure 1B was recorded.
Source: Heart Rhythm - Category: Cardiology Authors: Tags: Josephson and Wellens ECG Lessons: A Monthly Visit to the 12 Lead ECG Source Type: research