Frequency of cardiogenic shock in acute inferior wall myocardial infraction.

Objective: The aim of the study to determine the frequency of cardiogenic shock and its associated factors in patients with inferior wall myocardial infarction in tertiary care hospital. Study Design: Observational Descriptive study. Setting: Department of Cardiology, National Institute of Cardiovascular Disease (NICVD), Karachi. Period: January to July 2017. Material & Methods: A total of 241 patients with acute inferior wall MI presented with the complain of chest pain for more than 30 minutes and less than 24 hours were recruited in this study. A detailed history including age, sex, family history and co-morbidities status was taken. Patients undergone right sided ECG. Cardiac shock was assessed and recorded prospectively. Results: There were 144 male and 97 female patients. Mean age was 52.58±10.13 years. 44.8% were hypertensive, 14.5% were diabetic, 19.1% had family history of CAD, and 14.9% were smokers. In our study, 7.9% cases were found with cardiogenic shock. The association of cadiogenic shock was found significant with age, female gender, co-morbidities (P-values<0.05). Conclusion: Cardiogenic shock (CS) remain the leading cause of death in hospitalized patients with myocardial infarction. The present study concluded that there is increased risk of cardiogenic shock in patients having inferior myocardial infarction along with right ventricular infarction. The study shows prevalence of cardiogenic shock and factors that increases the risk. The factors such as age, female gender, patients with medical conditions such diabetes and hypertension, smoking status are risk factors of cardiogenic shock in patients with coronary heart disease.