Right Ventricular Infarction Complicating Inferior Wall Myocardial Infarction and it's in Hospital Adverse Outcome: An Observational Study

Introduction: Inferior wall myocardial infarction (IWMI) is frequently caused by right coronary artery occlusion and can often also involve the right ventricle. Right ventricular infarction (RVI) occurs in a significant proportion of these cases and is associated with worse clinical outcomes such as hemodynamic instability, arrhythmias, and increased risk of in-hospital complications such as cardiogenic shock and death. Despite its impact, RVI is often underdiagnosed in routine clinical practice. Early recognition is essential for timely intervention and improved outcomes. This observational study aims to assess the incidence of RVI in patients with IWMI and evaluate its association with in-hospital adverse events.Aims: Aim of the present study is to assess the RV infarction in Acute Inferior Wall Myocardial Infarction patientsand it’s correlation on in hospital outcome.Materials & Methods: The study was Cross sectional Descriptive type of study. This study was completed within one and half year, One Year for data collection (2023-2024) and 6 months for data management. department of medicine, Agartala Government Medical College and GB Pant Hospital. And total sample size 110 acute inferior wall myocardial infarction patients.Result: We found that Out of the 110 patients with acute inferior wall myocardial infarction (IWMI), 53 (48.2%) had right ventricular myocardial infarction (RVMI). Arrhythmias were significantly more common in patients without RVMI (26.3%) compared to those with RVMI (3.8%). Mortality was higher in the RVMI group (11.3%) compared to the non-RVMI group (7.0%).Heart failure occurred more frequently in patients with RVMI (11.3%) than in those without RVMI (3.5%).Hypotension or cardiogenic shock was also more prevalent among patients with RVMI (30.2%) compared to non-RVMI patients (19.3%).Survival without complications was slightly lower in the RVMI group (43.4%) compared to the non-RVMI group (43.9%). Statistical analysis using the chi-square test showed a significant association between RVMI and in-hospital outcomes, with a chi-square value of 13.2225 and a p-value of 0.0102, indicating statistical significance (p < 0.05).Conclusion: We concluded that patients with inferior wall myocardial infarction (IWMI) with concomitant right ventricular (RV) infarction evaluated in this observational study. 53 patients out of 110 had RV involvement (RVMI) which begets adverse outcome.