AbstractIntroduction: Acute myocardial infarction causes more deaths and disability and incurs greater economic costs than any other illness in the developed world. It is the most common, serious, life threatening illness in the world. Aims and Objectives: To study Clinico- Demographic Profile of ST elevation MI patients. Methodology: 50 cases of acute myocardial infarction admitted in Aarupadaiveedu Medical College. All the patients above 25 yrs. Patients presented with typical anginal pain persisting for >30 min. Investigations like urine examination, complete blood picture, erythrocyte sedimentation rate, blood urea, serum creatinine, blood sugar electrolytes and chest radiographic examination have been carried out. Special investigations like electrocardiogram, the echocardiogram were studied. Result: MI was seen more in the age group of 50yrs-59yrs (34%), 74% males and 26% females showing the male predominance, 50 patients 20 patients had anterior wall myocardial infarction (40%), 10 patients had inferior wall MI(20%),7 patients had inferior wall with RVMI(14%), 9 patients had anteroseptal(18%), 4 patients had anteroinferior(8%). Patients with Anterior wall myocardial infarction, on 2D ECHO shown anterior wall RWMA, Antero –septal RWMA, Anterior and apical RWMA, Antero lateral RWMA like findings. Patients with inferior wall myocardial infarction and Inferior wall with RVMI, ECHO findings, Inferior wall RWMA Inferior and right ventricle RWMA, Inferior and right ventricle RWMA like findings. Patient’s anterior-inferior Myocardial infarction on ECHO changes Global hypokinesia Anterior, inferior wall hypokinesia like findings. Conclusion: Common age group affected was 50 – 60 years in males and 70-80 years in female’s Anterior wall myocardial infarction was more common compared to inferior wall myocardial infarction Echocardiogram is more diagnostic than electrocardiogram as it shows more details of regional wall motion abnormalities.

Key Words: ST elevation MI patients, Electrocardiography in MI, 2 D-Echocardiogrphy in MI, Myocardial Infarction (MI).