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Concomitant impact of high-sensitivity C-reactive protein and renal dysfunction in patients with acute myocardial
Yong Un Kang1, Min Jee Kim, Joon Seok Choi
1Department of Internal Medicine, Chonnam National University Medical School, 42 Jebong-ro, Gwangju 501-757, Korea. skimw@chonnam.ac.kr.
Insights
High-sensitivity C-reactive protein (hs-CRP) and renal dysfunction worsen outcomes for acute myocardial infarction (AMI) patients. Combined, these factors significantly increase major adverse cardiac events (MACE) and mortality risk.
Area of Science:
- Cardiology
- Nephrology
- Biomarkers
Background:
- Acute myocardial infarction (AMI) is a leading cause of cardiovascular mortality.
- Biomarkers like high-sensitivity C-reactive protein (hs-CRP) and renal function are crucial for risk stratification.
- Understanding their combined impact is vital for improving patient outcomes.
Purpose of the Study:
- To investigate the impact of hs-CRP and renal dysfunction on clinical outcomes in AMI patients.
- To assess the association between hs-CRP levels, estimated glomerular filtration rate (eGFR), and major adverse cardiac events (MACE).
Main Methods:
- Retrospective cohort study of 8332 AMI patients.
- Patients categorized into four groups based on eGFR (≥60 mL·min(-1)·1.73 m(-2) vs. <60) and hs-CRP levels (≤2.0 mg/dL vs. >2.0 mg/dL).
- One-year follow-up to compare MACE rates.
Main Results:
- A graded association was observed between increased MACE rates and higher hs-CRP/renal dysfunction.
- Group IV (renal dysfunction with high hs-CRP) had the highest MACE rate (30.1%).
- Cox proportional hazards model showed significantly increased 12-month mortality in patients with high hs-CRP and/or renal dysfunction compared to the low-risk group.
Conclusions:
- Elevated hs-CRP, particularly when combined with renal dysfunction, is linked to MACE in AMI patients.
- These factors indicate a poor prognosis and increased mortality risk.
- Risk stratification using hs-CRP and renal function is essential for AMI management.
Purpose:
The present study aimed to investigate the impact of high-sensitivity C-reactive protein (hs-CRP) and renal dysfunction on clinical outcomes in acute myocardial infarction (AMI) patients.
Materials And Methods:
The study involved a retrospective cohort of 8332 patients admitted with AMI. The participants were divided into 4 groups according to the levels of estimated glomerular filtration rate (eGFR) and hs-CRP: group I, no renal dysfunction (eGFR ≥60 mL·min(-1)·1.73 m(-2)) with low hs-CRP (≤2.0 mg/dL); group II, no renal dysfunction with high hs-CRP; group III, renal dysfunction with low hs-CRP; and group IV, renal dysfunction with high hs-CRP. We compared major adverse cardiac events (MACE) over a 1-year follow-up period.
Results:
The 4 groups demonstrated a graded association with increased MACE rates (group I, 8.8%; group II, 13.8%; group III, 18.6%; group IV, 30.1%; p<0.001). In a Cox proportional hazards model, mortality at 12 months increased in groups II, III, and IV compared with group I [hazard ratio (HR) 2.038, 95% confidence interval (CI) 1.450-2.863, p<0.001; HR 3.003, 95% CI 2.269-3.974, p<0.001; HR 5.087, 95% CI 3.755-6.891, p<0.001].
Conclusion:
High hs-CRP, especially in association with renal dysfunction, is related to the occurrence of composite MACE, and indicates poor prognosis in AMI patients.
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