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Association of atherogenic indices with myocardial damage and mortality in COVID-19
Seyda Gunay-Polatkan1, Serhat Caliskan2, Deniz Sigirli3
1Bursa Uludag University Faculty of Medicine, Department of Cardiology, Gorukle/Bursa, Turkey.
Insights
The triglyceride to HDLc ratio (THR) is linked to heart muscle damage and strongly predicts COVID-19 mortality. Higher THR indicates increased risk in patients with COVID-19.
Area of Science:
- Cardiology
- Biochemistry
- Infectious Diseases
Background:
- Lipoproteins are crucial for cell membrane stability and defense against microbes.
- COVID-19 patients frequently exhibit damage to their heart muscle cell membranes.
Purpose of the Study:
- To investigate the association between atherogenic indices and myocardial damage in COVID-19 patients.
- To determine the predictive value of atherogenic indices for in-hospital mortality in COVID-19.
Main Methods:
- Observational, single-center, retrospective study of 783 COVID-19 patients.
- Collected data on C-reactive protein (CRP), lipids (TC, HDLc, LDLc, triglycerides), cardiac troponin I (cTnI), and ferritin.
- Calculated various atherogenic indices, including the triglyceride to HDLc ratio (THR).
Main Results:
- Mortality rate was 15.45%. Non-survivors were older and had significantly higher CRP, cTnI, triglycerides, and atherogenic indices (including THR).
- Non-survivors showed significantly lower levels of LDLc, HDLc, TC, and albumin.
- The triglyceride to HDLc ratio (THR) was significantly elevated in non-survivors.
Conclusions:
- The triglyceride to HDLc ratio (THR) is positively correlated with myocardial damage in COVID-19.
- THR is a strong predictor of in-hospital mortality for patients with COVID-19.
Background:
Lipoproteins in cell membranes are related to membrane stability and play a role against microorganisms. Patients with COVID-19 often experience myocyte membrane damage.
Objective:
This study aimed to search the relationship of atherogenic indices with myocardial damage and mortality in COVID-19.
Methods:
This was an observational, single-center, retrospective study. The study population was grouped according to in-hospital mortality. C-reactive protein (CRP), CRP to albumin ratio (CAR), monocyte to high density lipoprotein cholesterol ratio (MHR), levels of total cholesterol (TC), triglycerides, high-density lipoprotein cholesterol (HDLc), and low-density lipoprotein cholesterol (LDLc) and cardiac troponin I (cTnI) were recorded. Atherogenic indices (plasma atherogenic index [AIP], atherogenic coefficient [AC], Castelli's risk indices I and II [CRI I and II], triglyceride to HDLc ratio (THR) were calculated.
Results:
A total of 783 patients were included. The mortality rate was 15.45% (n = 121). The median age of non-survivor group (NSG) was higher than survivor group (SG) [66.0 years (Q1 -Q3: 55.0-77.5) vs 54.0 years (Q1 -Q3: 43.0-63.0)] (p < 0.001). Study parameters which were measured significantly higher in the NSG were CRP, cTnI, triglyceride, CRI-I, CRI-II, AC, AIP, ferritin, CAR, MHR and THR. LDLc, HDLc, TC and albumin were significantly lower in NSG (p<0.001).
Conclusion:
THR is positively correlated with myocardial damage and strongly predicts in-hospital mortality in COVID-19.
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