JPSIM Journal of Pakistan Society of Internal Medicine J Pak Soc Intern Med 2709-8729 2710-0804 Pakistan Society of Internal Medicine 10.70302/jpsim.v4i3.2344 jpsim.v4i3.2344 Original Research Association of Mortality in Patients with Right Bundle Branch Block in Patients Presented with Anterior Wall Myocardial Infarction during Hospital Stay Kamran Rana Muhammad Haseeb dochibbo@gmail.com * Ahmad Waqar Younis Khawaja Adnan Munib Hafiz Muhammad Sajjad Anas Siddique Kashif Waheed Iqra University of Lahore Hospital and Teaching Hospital Mayo Hospital, Lahore Aadil Hospital, Lahore Services Hospital, Lahore Biostatistician *Correspondence: Rana Muhammad Haseeb Kamran (dochibbo@gmail.com) 25 09 2023 2023 4 3 218 222 31 05 2023 25 06 2023 Copyright © 2023 The Author(s) 2023 The Author(s) https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Objective

To determine the association of mortality with right bundle branch block in individuals presenting with acute anterior wall myocardial infarction during hospital stay.

 Methodology

This Cohort study was done in Department of Cardiology, University of Lahore hospital, Lahore during September 2022 to March 2023. Sample size of 160 individuals; 80 in each group were enrolled. Then, ECG will be performed at admission and individuals were divided in two groups i.e. exposed and unexposed. During follow-up, it patient died within hospital stay, then in-hospital mortality was labeled. Data was collected in proforma and analysed in SPSS version 25.

 Results

In exposed group, the mean age of individuals was 47.51 ± 10.56 years and in unexposed group was 49.99 ± 12.82 years. In exposed group, there were 36 (45.0%) males and 44 (55.0%) females. In unexposed group, there were 33 (41.3%) males and 47 (58.8%) females. In exposed group, 17 (21.3%) individuals died during hospital stay. In unexposed group, 5 (6.3%) individuals died during hospital stay. There is significant association exist between right bundle branch block and in-hospital mortality i.e. Relative risk = 1.693, 95% confidence interval = 1.266, 2.264, p-value = 0.006).

 Conclusion

Thus, there is a significant association of right bundle branch block with mortality in individuals with acute anterior wall STEMI.

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