Thoracic Key

Sudden Cardiac Death and the Cardiac Arrest Survivor Gregory Mellor Zachary W. M. Laksman Andrew D. Krahn Sudden cardiac death (SCD) is a leading cause of mortality in the Western…

Syncope Suneet Mittal Syncope is defined as the sudden loss of consciousness associated with the absence of postural tone and is usually followed by a complete and rapid recovery. It…

Atrial Arrhythmias Jonathan S. Steinberg Aysha Arshad Tina Sichrovsky Dan Musat ATRIAL FIBRILLATION DIAGNOSIS AND EPIDEMIOLOGY Atrial fibrillation (AF) is the most common sustained arrhythmia observed in clinical practice, encountered…

Supraventricular Tachycardia: AVNRT, AVRT Zachary T. Hollis Kurt S. Hoffmayer Melvin M. Scheinman Supraventricular tachycardia (SVT) is an umbrella term used to describe tachycardia (atrial and/or ventricular rates in excess…

Bradycardia Andrea Corrado Gianni Gasparini Antonio Raviele SINUS RHYTHM The electrical activation of the heart originates spontaneously from the cells of the sinoatrial node (SAN), which is situated at the…