Volume 35, Issue 254 (3-2026)
J Mazandaran Univ Med Sci 2026, 35(254): 39-46 |
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Basiri Moghaddam M, Basiri Moghaddam M, Dalir Z, Behnam I. Association of Admission QRS Duration with Left Main and Three-Vessel Disease in Patients with Myocardial Infarction. J Mazandaran Univ Med Sci 2026; 35 (254) :39-46
URL: http://jmums.mazums.ac.ir/article-1-22431-en.html
URL: http://jmums.mazums.ac.ir/article-1-22431-en.html
Abstract: (165 Views)
Background and purpose: Among patients with coronary artery disease (CAD), those with left main coronary artery (LMCA) disease and three-vessel disease (3VD) have the poorest prognosis, with a high risk of mortality and adverse events. Early identification is crucial for improving outcomes in these patients. This study aimed to compare QRS duration on admission in patients with LMCA involvement, 3VD, and other myocardial infarction (MI) presentations.
Materials and methods: In this cross-sectional analytical study, 177 patients with MI admitted to the emergency departments of Imam Reza (AS) and Ghaem Hospitals in Mashhad, Iran, during the winter of 2023 and spring of 2024 were selected by purposive sampling and examined. Data collection tools included a demographic information questionnaire, the Cardiofax S 1250 (Nihon Kohden) electrocardiograph, and ImageJ image analysis software. After ethical approval was obtained and the required permissions were secured, data collection commenced. First, patients’ electrocardiograms were recorded, and the demographic information questionnaire was completed. QRS duration was measured and recorded using ImageJ software. Subsequently, patients underwent coronary angiography performed by a cardiologist. Finally, the data were entered into SPSS software (version 21; IBM Corp., Armonk, NY, USA) and subjected to statistical analysis.
Results: The mean age of the study participants was 59.37 ± 11.38 years, and the mean weight was 75.30 ± 13.22 kg. A significant difference in QRS duration was observed among the four groups (P < 0.001), with the group experiencing concomitant LMCA and 3VD involvement showing the longest QRS duration.
Conclusion: QRS duration may assist in guiding decisions regarding coronary artery bypass grafting (CABG) and facilitate timely therapeutic interventions, potentially improving patient survival, reducing treatment costs, and shortening hospital stays
Materials and methods: In this cross-sectional analytical study, 177 patients with MI admitted to the emergency departments of Imam Reza (AS) and Ghaem Hospitals in Mashhad, Iran, during the winter of 2023 and spring of 2024 were selected by purposive sampling and examined. Data collection tools included a demographic information questionnaire, the Cardiofax S 1250 (Nihon Kohden) electrocardiograph, and ImageJ image analysis software. After ethical approval was obtained and the required permissions were secured, data collection commenced. First, patients’ electrocardiograms were recorded, and the demographic information questionnaire was completed. QRS duration was measured and recorded using ImageJ software. Subsequently, patients underwent coronary angiography performed by a cardiologist. Finally, the data were entered into SPSS software (version 21; IBM Corp., Armonk, NY, USA) and subjected to statistical analysis.
Results: The mean age of the study participants was 59.37 ± 11.38 years, and the mean weight was 75.30 ± 13.22 kg. A significant difference in QRS duration was observed among the four groups (P < 0.001), with the group experiencing concomitant LMCA and 3VD involvement showing the longest QRS duration.
Conclusion: QRS duration may assist in guiding decisions regarding coronary artery bypass grafting (CABG) and facilitate timely therapeutic interventions, potentially improving patient survival, reducing treatment costs, and shortening hospital stays
Keywords: Myocardial Infarction, QRS Duration, Left Main Coronary Artery Disease, Three-Vessel Disease
Type of Study: Research(Original) |
Subject:
Cardiovascular
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