E/e' Ratio as a Predictor of In-Hospital Complications and Clinical Outcomes of Acute Myocardial Infarction.
Cureus, ISSN: 2168-8184, Vol: 16, Issue: 8, Page: e66795
2024
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Nomogram for Predicting in-Hospital Severe Complications in Patients with Acute Myocardial Infarction Admitted in Emergency Department
Introduction Acute myocardial infarction (AMI) is a severe form of coronary atherosclerotic heart disease, known for its rapid onset, progression, high incidence, and mortality rates.1,2
Article Description
Introduction Acute myocardial infarction (AMI) is the leading cause of death worldwide. E/e' ratio can predict complications and mortality in the long term, but information on its effectiveness in in-hospital settings is limited. Identifying high-risk patients effectively is crucial for early management, which may improve overall clinical outcomes. This study evaluated the predictive value of the E/e' ratio of in-hospital complications and clinical outcomes of AMI. Methods Patients presenting with AMI to Batumi Referral Hospital, Georgia, between December 2023 and May 2024, were examined in this study. During the first 24 hours of hospitalization, all patients underwent two-dimensional echocardiograms. Early diastolic filling velocity (E) was measured by pulsed wave Doppler, and early mitral annulus velocity (e') was measured by tissue Doppler. Based on the ratio of the two measures, patients were divided into three groups: E/e'<8, E/e' 8-14, and E/e'>14. Results A total of 113 patients (92 males and 21 females) were included in the study. The average age of the patients was 62 years (SD = 11.71). Overall, 27 (23.8%) patients were diagnosed with ST-elevation myocardial infarction (STEMI) and 86 (76.2%) patients with non-ST-elevation myocardial infarction (NSTEMI). The E/e' ratio was normal (less than 8) in 39 (34.5%) patients (group A), increased to 8-14 in 46 (40.7%) (group B), and greater than 14 in 28 (24.8%) (group C). The percentage of deaths in group B was higher than that in group A (2.2% vs 0%), and in group C, it was significantly higher than that in group B (17.9% vs 2.2%) (p<0.05). The percentage of heart failure developed during hospitalization was higher in group B compared to group A (54.3% vs 2.6%), and it was significantly higher in group C compared to group B (67.9% vs 54.3%) (p<0.05). The percentage of arrhythmias developed during hospitalization was higher in group B compared to group A (13.0% VS 2.6%), and in group C, was significantly higher compared to group B (35.7% VS 13.0%) (p<0.05). The percentage of cardiogenic shock in group B was higher than that in group A (4.3% VS 0%), and in group C, it was significantly higher than group B (25.0% VS 4.3%) (p<0.05). No significant association was found between E/e' ratio and recurrent angina, nor was there a significant association between all-cause deterioration during hospitalization (p>0.05). Conclusions Both slightly and significantly elevated E/e' ratios are predictors of in-hospital complications and may be used to identify individuals at high risk of negative health outcomes.
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Springer Science and Business Media LLC
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