A Clinical Study of Conduction Block in Acute Myocardial Infarction

Objective: Acute myocardial infarction is a major health problem in both developing and developed countries, remaining as a leading cause of morbidity and mortatility. It can occurs at any level of the conduction system i.e. atrioventricular or interventricular. It may be transient or permanent. Materials and Methods: 100 patients admitted in cardiac intensive care unit of sree balaji medical college and hospitals with the evidence of acute myocardial infarction are be studied. Results: 11% of the study populations developed heart failure whereas 89% were without evidence of heart failure. 19% of the study populations developed conduction blocks. In this 19% ,7 cases were first degree AV block, 4 cases of second degree AV block, 3 cases of complete heart block, 2 cases of left anterior hemi block, 2 cases of RBBB and one case of LBBB. Conclusions: AV blocks were more common in inferior wall myocardial infarction. Bundle branch blocks were more common in anterior wall myocardial infarction. Association between mortality and conduction blocks were not done as our study did not had any mortality with conduction blocks.