Post Percutaneous Coronary Intervention (Post-PCI) Arrhythmias in Right Coronary Artery versus Left Circumflex-Related Inferior Wall Myocardial Infarction: A Comparative Stud

Muhmmad Javeed; Samra Yasmin; Muhammad Taha; Hamayon; Sidra Rasul; Ahsan Bilal

doi:10.51253/pafmj.v76iSUPPL-2.13159

Authors

Muhmmad Javeed Department of Cardiology, Punjab Institute of Cardiology, Lahore Pakistan
Samra Yasmin Department of Cardiology, Punjab Institute of Cardiology, Lahore Pakistan
Muhammad Taha Department of Cardiology, Punjab Institute of Cardiology, Lahore Pakistan
Hamayon Department of Cardiology, Punjab Institute of Cardiology, Lahore Pakistan
Sidra Rasul Department of Obstetrics and Gynecology, Punjab Institute of Cardiology, Lahore Pakistan
Ahsan Bilal Department of Cardiology, Punjab Institute of Cardiology, Lahore Pakistan

DOI:

https://doi.org/10.51253/pafmj.v76iSUPPL-2.13159

Keywords:

Culprit Artery, Inferior wall MI, Post-PCI Arrhythmias

Abstract

Objective: To determine the frequency of Right Coronary Artery (RCA) and Left Circumflex Artery (LCX) occlusion and to compare the incidence of post-PCI arrhythmias between patients with RCA-related and LCX-related acute inferior wall Myocardial Infarction (MI).

Study Design: Cross-sectional study.

Place and Duration of Study: Department of Cardiology, Punjab Institute of Cardiology, Lahore Pakistan, from Oct 24 to Jan 25.

Methodology: This study included 90 patients diagnosed with acute inferior wall MI who underwent primary PCI after providing informed consent. RCA or LCX occlusion, defined as ≥50% narrowing on angiography, was assessed in patients, and post-PCI arrhythmias occurring within 48 hours were recorded using ECG.

Results: RCA was the problematic artery in 67% of patients, whereas LCX was in 33%. Overall, arrhythmias were observed in 32.3% of the study population. Supraventricular, ventricular, and heart block arrhythmias were observed among RCA vs. LCX as 10.0% vs. 6.7%, 13.3% vs. 20.0%, and 11.7% vs. 0%, respectively; p=0.210.

Conclusion: LCX-related inferior wall MI. Notably, heart block was exclusively observed. The study concluded that RCA was more frequently identified as the culprit artery (67.0%) compared to LCX (33.0%) in patients with acute inferior wall MI. Post-PCI arrhythmias were observed in nearly one-third (32.3%) of cases. Supraventricular arrhythmias were slightly more common in RCA-related inferior wall MI, while ventricular arrhythmias were more frequently associated with in RCA-related cases (11.7%), with none in LCX-related cases.

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