[Skip to Navigation]
March 1975

Atrioventricular and Intraventricular Conduction Disease

Author Affiliations

From the Congenital Heart Disease Research and Training Center, Hektoen Institute for Medical Research; departments of pathology— Northwestern University Medical School, Pritzker School of Medicine-University of Chicago, Chicago Medical School-University of Health Sciences, and Loyola University-Stritch School of Medicine; Section of Cardiology, departments of medicine and pathology, Abraham Lincoln School of Medicine, University of Illinois; and Department of Pediatrics, Rush Medical College, Chicago. Dr. Lev is a Career Investigator and Educator, Chicago Heart Association.

Arch Intern Med. 1975;135(3):405-410. doi:10.1001/archinte.1975.00330030055006

The anatomic bases of the electrocardiographic abnormalities atrioventricular and intraventricular block have been subjects of considerable study during the last 25 years.1-24 This report reviews the advances made during this period.

ATRIOVENTRICULAR BLOCK  Permanent, complete atrioventricular block is almost always associated with lesions in the conduction system.1,2,5,11,18Atrioventricular block is associated with many conditions11: coronary heart disease, hypertension, congenital heart disease, myocarditis, rheumatic heart disease, syphilitic heart disease, aortic valvular disease, infectious endocarditis, rheumatoid heart disease, collagen diseases, tumors, trauma, and other miscellaneous states and diseases. In addition, there is the very important type of primary heart block or sclerosis of the left side of the cardiac skeleton.

Coronary Heart Disease  Atrioventricular block in this disease may be acute or chronic.1,2,7,9,10,19 The acute type is associated with an acute myocardial infarction, either of the posteroseptal or anteroseptal type. The chronic type is associated with chronic