Association of Coronary Artery Dominance and Heart Failure in Patients with Inferior Wall Myocardial Infarction
Objective: To determine the association between coronary artery dominance and heart failure in patients with inferior wall myocardial infarction (IWMI). Study Design: Prospective cohort study. Settings: Emergency, Punjab institute of Cardiology, Lahore. Duration: 24-03-2017 to 23-09-2017. Methodology: The cases of both gender and age 18 to 60 years were enrolled that had acute IWMI. Heart failure was defined as ejection fraction < 40% determined by echocardiography. These cases then underwent angiography to look for dominant artery involved. Results: In this study there were total 227 patients with mean age of 45.07±8.17 years. There were 118 (51.98%) males and 109(48.02%) females. Heart failure was observed in 63 patients in which 16 were from left circumflex (LCX) dominant artery and 47 were from right coronary artery (RCA) dominant artery, similarly in cases with no heart failure 42 had LCX as dominant artery and 122 had RCA as dominant artery with p= 0.97. Conclusion: There is no significant association observed between the coronary artery dominance and heart failure in patients with IWMI.