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Bushra Aqeel
Ovais Shams
Sharwan Bhuro Mal
Iram Jehan Balouch
Ghulam Abbas Shaikh
Surendar Meghwar


Acute myocardial infarction, Inferior wall myocardial infarction, Right ventricular infarction


Background: Infarction is a segmental illness of the myocardium caused by a focal blockage of one of the three main coronary arteries (CA) or one of its branches during a specific event, which impairs contractility only in the segment that is affected. Extensive inferior-posterior myocardial infarctions are frequently accompanied by right ventricular infarctions (RVIs).

Objective: The study aimed to determine the frequency of acute inferior wall myocardial infarction presenting with right ventricular infarction at a cardiac care tertiary setting

Study Design: A cross-sectional study

Place And Duration: This study was conducted at Isra University Hospital Hyderabad, Pakistan. from February 2022 to February 2023.

Methodology: Using the total population sampling method 116 patients were included in the study who presented with acute inferior wall myocardial infarction (IWMI), more than 1.0 mm ST segment elevation on right-sided chest leads that is V3R and V4R and were confirmatory for Right ventricular involvement. Data was entered and analyzed using SPSS version 23. The numerical variables were presented in descriptive statistics i.e. mean and SD while we presented the categorical data in frequency and percentages. We used the Chi-Square test of association to determine the strength of the association between the variables.

Results: There were 116 study participants who presented with inferior-wall MI.  The mean age of the patients were 56 ± 8.2 years, Mean BMI was 27.3 ± 2.1 Kg/m2.  Amongst them, 69 (59.48%) were male. The highest 73 (62.93%) proportion of the participants were overweight. In this study, more than two-fifths 51 (43.97%) were smokers, there were 53 (45.69%) participants had diabetes, and 81 (69.83%) patients reported having hypertension. Nearly two-thirds 76 (65.52%) reported having an urban residence. The frequency of the right ventricular infarction in inferior wall myocardial infarction was 35(30.17%) and 81(69.83%) had no right ventricular infarction.

Conclusion: The study found that patients who report acute inferior MI in cardiac care settings have a reasonable proportion of RV infarction.

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