A study on correlation between chronic conduction block and coronary artery disease

Background: Coronary artery disease is sometimes associated with chronic conduction block. Our aim is to correlate between chronic conduction block and coronary artery disease. We performed ECG and coronary angiography of all patients who were admitted for permanent pacemaker implantation to find correlation between them. Methods: Coronary angiography was performed in all 160 patients of chronic conduction block during twenty four months of study period who were admitted for pacemaker implantation. We compared the coronary artery disease in different types of conduction block. Results: Among the study population 35(22%) patients are of single vessel coronary artery disease (CAD),13 (8%) patients had double vessel coronary artery disease, 6 (4%) patients had triple vessel coronary artery disease, 2 (1%) patients had left main disease and 104 (65%) patients had normal or insignificant coronary anatomy. Conclusion: Coronary artery disease is quite common in chronic conduction disorder. So there must be a correlation between coronary artery disease and chronic conduction block.