Centennial of the original description of Mobitz type II second-degree atrioventricular block

Abstract

The year 2024 marks the centenary of Mobitz's description of type II second-degree atrioventricular block. Its definition remains valid to this day with only minor modification for the diagnosis of infranodal conduction block. Mobitz a century ago indicated that his type II atrioventricular block was associated with Stock-Adams attacks and a prolonged duration of the QRS complex before the eventual description of bundle branch block.

Keywords: Mobitz type II second‐degree atrioventricular block; arrhythmia; cardiac conduction; electrocardiography; infranodal block; second‐degree atrioventricular block.