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High AST/ALT Ratio Is Associated with Cardiac Involvement in Acute COVID-19 Patients
Mesut Karatas1, Nursen Keles2, Kemal Emrecan Parsova3
1Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Training and Research Hospital, University of Health Sciences, Istanbul 34865, Turkey.
Insights
A high aspartate aminotransferase/alanine aminotransferase (AST/ALT) ratio in recovered COVID-19 patients indicates impaired cardiac function. This ratio may help identify individuals at risk for cardiac involvement, necessitating closer monitoring.
Area of Science:
- Cardiology
- Infectious Diseases
- Biochemistry
Background:
- COVID-19 can lead to cardiac complications even after recovery.
- The AST/ALT ratio is a marker of liver function and inflammation.
- Its role in post-COVID cardiac sequelae requires further investigation.
Purpose of the Study:
- To evaluate the association between the AST/ALT ratio and cardiac parameters in recovered COVID-19 patients.
- To determine if the AST/ALT ratio can predict cardiac involvement post-COVID-19.
Main Methods:
- 87 hospitalized COVID-19 patients (non-ICU) were studied post-recovery.
- Patients were divided into high and low AST/ALT ratio subgroups based on the median value.
- Cardiac function was assessed using transthoracic echocardiography (TTE) and cardiac magnetic resonance imaging (CMRI).
Main Results:
- Higher AST/ALT ratio correlated with elevated inflammatory markers (CRP, D-dimer, fibrinogen).
- Impaired left and right ventricular function (lower LVEF, TAPSE, S', FAC, RV stroke volume, RV ejection fraction; higher RV end-systolic volume) observed in high AST/ALT group.
- Increased myocardial T1/T2 mapping signals and extracellular volume detected by CMRI in high AST/ALT group.
Conclusions:
- An elevated AST/ALT ratio is linked to echocardiographic and CMRI-defined cardiac dysfunction after COVID-19 recovery.
- AST/ALT ratio at admission may serve as a risk indicator for cardiac involvement in COVID-19.
- Patients with high AST/ALT ratios may benefit from intensified cardiac monitoring.
Abstract:
Background and Objectives: We aimed to assess the effect of AST/ALT ratio on echocardiographic and cardiac magnetic resonance imaging (CMRI) parameters after COVID-19 patients recover. Materials and Methods: 87 patients with COVID-19 were included in the study. The patients were hospitalized with COVID-19 pneumonia, but the patients did not need intensive care unit follow-up or non-invasive mechanical ventilation support. After a discharge and two weeks following the positive swab test result, patients were considered eligible if they had any symptoms. Transthoracic echocardiography (TTE) was performed within 24 h prior to CMRI. The median value of AST/ALT ratio was found, and the study population was divided into two subgroups based on the median AST/ALT ratio value. The clinical features, blood test, TTE and CMRI results were compared between subgroups. Results: C-reactive protein, D-dimer and fibrinogen were found to be significantly higher in patients with high AST/ALT ratio. LVEF, TAPSE, S', and FAC were significantly lower in patients with high AST/ALT ratio. LV-GLS were significantly lower in patients with high AST/ALT ratio. In CMRI, native T1 mapping signal, native T2 mapping signal and extracellular volume raised significantly in patients with high AST/ALT ratio. Right ventricle stroke volume and right ventricle ejection fraction were significantly lower in patients with high AST/ALT ratio, but right ventricle end systolic volume was significantly higher in patients with high AST/ALT ratio. Conclusion: High AST/ALT ratio is related to impaired right ventricular function parameters with CMRI and echocardiography after recovery from acute COVID-19. Assessment of AST/ALT ratio at hospital admission may be used to assess the risk of cardiac involvement in COVID-19 disease, and these patients may require closer follow-up during and after the course of COVID-19.
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