Study of Prognosis of Atrioventricular Blocks Versus Intraventricular Blocks in Acute Myocardial Infarction

Abstract

Myocardial infarction is a Global epidemic, and it is as large as the new epidemic afflicting population worldwide. According to the National Commission on Macro-economics and Health, there would be around 62 million patients with Coronary Artery Disease (CAD) by 2015 in India, and of these, 23 million would be younger than 40 years of age. 1 The present study will enlighten the correlation of Atrioventricular conduction defects versus intraventricular conduction defects in acute myocardial infarction after thrombolytic era. AIMS AND OBJECTIVESTo study the prognosis of atrioventricular conduction blocks versus intraventricular conduction defects in patients with acute myocardial infarction. MATERIALS AND METHODSIt is a prospective and comparative cohort study; 72 patients admitted in RLJH diagnosed as acute myocardial infarction who are with AV conduction blocks and myocardial infarction with intraventricular conduction blocks are included in the study. That is 36 patients with acute myocardial infarction with atrioventricular conduction blocks compared with 36 patients of myocardial infarction with intraventricular conduction blocks. Seven days followup is done to assess the prognosis of AV blocks versus intraventricular conduction blocks in acute myocardial infarction. RESULTSBoth AV (75%) and intraventricular (80%) blocks (IV blocks) are more in males, but no significant difference between AV and IV blocks with respect to gender. Chest pain (86%) is the common presentation for conduction disturbances in acute Myocardial Infarction (MI). Breathlessness is more specific for intraventricular blocks in acute MI. Anterior wall (52.8%) is involved in intraventricular conduction blocks compared to AV Blocks (27.8%). Inferior wall (55.6%) is involved in AV blocks more than anterior Wall (41.7%). In Killips staging most of AV blocks presented in stage 3 compared to IV block which have less risk (Stage 1) and better prognosis. Based on mortality AV blocks have more mortality of 33.3% compared to Intraventricular blocks (8.3%) in acute Myocardial Infarction (MI). CONCLUSIONHence taking all things together AV blocks are associated with greater risk or poor prognosis compared to intraventricular blocks in acute myocardial infarction according to this present study. A cross sectional study of the nutrient intake of rural Adolescent girls was carried out in four villages