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[Prognostic Significance of Erythropoietin in Patients With Acute Coronary Syndrome]
M V Menzorov1, A M Shutov1, N V Larionova1
1Ulyanovsk State University, Ulyanovsk, Russia.
Insights
Elevated erythropoietin (EPO) levels in acute coronary syndrome (ACS) patients predict in-hospital mortality and acute kidney injury (AKI). Higher EPO serum levels were observed in non-survivors.
Area of Science:
- Cardiology
- Nephrology
- Biomarkers
Background:
- Acute coronary syndrome (ACS) is a critical cardiovascular condition.
- Erythropoietin (EPO) is a hormone primarily involved in red blood cell production.
- The prognostic role of EPO in ACS patients requires further investigation.
Purpose of the Study:
- To investigate the prognostic significance of serum erythropoietin (EPO) levels in patients diagnosed with acute coronary syndrome (ACS).
- To determine if EPO levels can predict in-hospital mortality and acute kidney injury (AKI) in ACS patients.
Main Methods:
- Serum EPO levels were measured at hospital admission in 84 ACS patients.
- Patients included ST-elevation myocardial infarction (STEMI), non-ST-elevation myocardial infarction, and unstable angina (UA).
- Coronary angiography during hospitalization was an exclusion criterion.
Main Results:
- In-hospital mortality was 5%.
- Median serum EPO levels were significantly higher in patients who died (78.1 vs. 9.0 I.U./ml, p=0.004).
- EPO levels >10.5 I.U./ml were a significant predictor of acute kidney injury (AKI) development (AUC 0.73).
Conclusions:
- Admission serum EPO levels may serve as an important biomarker for predicting AKI development in ACS patients.
- Elevated EPO levels at admission are associated with increased in-hospital mortality in ACS patients.
- EPO may play a role in the pathophysiology of AKI in the context of ACS.
Aim:
to investigate the prognostic role of erythropoietin (EPO) in patients with acute coronary syndrome (ACS).
Material And Methods:
Eighty-four patients (46 men, 38 women, mean age 63+/-11 years) with ACS were studied. Twenty-one patients had ST-elevation myocardial infarction (STEMI), 12 - non-ST-elevation myocardial infarction, 51 - unstable angina (UA). Ten patients with STEMI received thrombolytic therapy. Coronary angiography during hospitalization was criterion for exclusion from the study. Serum EPO was measured at hospital admission.
Results:
In-hospital mortality was 5%. Median EPO serum level was higher among patients who died (78.1 [27.8-143.5] vs. 9.0 [6.4-14.1]I.U./ml, p=0.004). Acute kidney injury (AKI) was observed in 7 patients with myocardial infarction (21%) and only in 1 with UA.EPO >10.5 I.U./ml was a significant predictor of AKI development (area under curve 0.73; sensitivity 71%, specificity 67%).
Conclusion:
The results of the present study indicate that in patients with ACS admission serum level of EPO may be an important biomarker of development of AKI and in-hospital mortality.
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