A Case of Paroxysmal Auricular Tachycardia with Block Present almost Continuously for Twenty-Five Years

Abstract
The following case report is that of a man who showed electrocardiographic and clinical evidence of paroxysmal auricular tachycardia with block most of the time during a twenty-five year period of observation. The auricular rate was almost always in the vicinity of 200 per minute and the A-V ratio varied between 1 to 1 and 1 to 4. On only one brief occasion was there evidence of congestive failure. He was able to go through two major surgical operations without any difficulty and at present at the age of 79 years he is still ambulatory without cardiac symptoms.