Research Journal of Medical Sciences
ISSN: Online 1993-6095ISSN: Print 1815-9346
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Abstract
A relatively recent ECG marker that has attracted growing attention in recent years is the fragmented QRS complex (fQRS). Present study was aimed to study correlation of fragmented QRS complex and the clinical outcomes in a patient with non‐ST elevation myocardial infarction. Present study was single‐center, Cross Sectional Observational Study, conducted in patients of Age >18 years, having confirmed NSTEMI. During this study, all NSTEMI patients were divided into 2 groups. Group A was of patients who were diagnosed as NSTEMI and have fQRS complex in ECG and Group B was of patients who were diagnosed as NSTEMI but have no fQRS complex in ECG. Findings suggest that older age, smoking, diabetes, and specific coronary artery involvement are associated with a higher likelihood of fQRS. In contrast, gender, hypertension and single or double‐vessel coronary disease do not show significant associations with fQRS in this study. Anterior ECG leads in detecting LAD lesion. ‐In lead V1‐V2, the sensitivity is 64.58%, with a specificity of 100%. The PPV and NPV are 100% and 48.48% respectively. The LR (‐) of 0.35 suggests a moderate decrease in the likelihood of LAD lesion. In lead V3‐V4, the sensitivity rises to 97.92%, indicating these leads correctly identify nearly all LAD lesions, with 100% specificity. The PPV and NPV are also 100% and 94.12% respectively. The LR‐ of 0.02 further suggests a minimal decrease in the likelihood of LAD lesion. The diagnostic accuracy of ECG leads using fQRS complexes was significantly higher for detecting coronary lesions in patients with NSTEMI.
How to cite this article:
Arpit Gupta, Shilpa Sule and Vaibhav B. Patil. A Cross‐Sectional Study of Correlation of Fragmented QRS Complex and the Clinical Outcomes in a Patient with Non‐ST Elevation Myocardial Infarction.
DOI: https://doi.org/10.36478/10.36478/makrjms.2024.10.369.374
URL: https://www.makhillpublications.co/view-article/1815-9346/10.36478/makrjms.2024.10.369.374