Outcome of Patients with Right Ventricular Infarction in Inferior Wall Myocardial Infarction

Abstract

NTRODUCTION: IWMI is associated with increased risk of death, shock, ventricular tachycardia or fibrillation and atrioventricular block (AVB), and a higher mortality rate for the first month post MI in patients with RVMI. AIMS & OBJECTIVES: To study the complications and in-hospital mortality in IWMI with RVMI. MATERIALS AND METHODS: A total of 100 patients of IWMI were recruited and screened for RVMI and complications and in-hospital mortality was recorded. RESULTS; It was observed that patients with IWMI had CHD, more commonly in RVI (7.14%) as compared with NRVI group (1.38%). Bradyarrhythmia was found in 7 cases (25%) in RVI group as compared to 3 (4.16%) in NRVI group which was statistically significant. (p= 0.002). A high mortality of 10.71% was observed in RVI group as compared to 2.77% in NRVI group (p= 0.05). DISCUSSION: In the present study, prevalence of CHB and second-degree AV block was found to be 4% and 3%, respectively, among patients with IWMI, which is lower than earlier studies. In the present study, 1 patient presented with cardiogenic shock, in each group of IWMI. In our study, total in-hospital mortality in IWMI was found to be 5%, which is less than reported prevalence. CONCLUSION: RVMI in IWMI is associated with some increased complications especially high degree AV block and CHB which harbour increased mortality. Keywords: Right Ventricular Myocardial Infarction (RVMI), Inferior Wall Myocardial Infarction (IWMI), Atrioventricular block (AVB), Complete Heart Block (CHB), Right Ventricular Infarction (RVI). Non Right Ventricular Infarction (NRVI).