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Prognostic value of high-sensitivity C-reactive protein in patients with chronic heart failure
Chuncai Xue1, Ying Feng, Jinshan Wo
1Department of Cardiology, The People's Hospital of Binzhou City. Binzhou City, 256610, Shandong, China. xuechc@yahoo.com.cn
Insights
High-sensitivity C-reactive protein (hsCRP) is elevated in chronic heart failure (CHF) patients and predicts cardiac events. This biomarker, along with troponin T and reduced ejection fraction, indicates higher risk in CHF patients.
Area of Science:
- Cardiology
- Biomarkers
- Heart Failure Research
Background:
- Chronic heart failure (CHF) is a complex condition with significant morbidity and mortality.
- Identifying reliable prognostic markers is crucial for managing CHF patients.
- Inflammation plays a role in the pathophysiology of heart failure.
Purpose of the Study:
- To investigate the prognostic value of high-sensitivity C-reactive protein (hsCRP) in patients with chronic heart failure (CHF).
- To assess the relationship between hsCRP levels and cardiac events in CHF patients.
- To determine if hsCRP is an independent predictor of adverse cardiac outcomes.
Main Methods:
- Serum hsCRP and cardiac troponin T (TNT) levels were measured in 128 CHF patients and 25 healthy controls.
- Cardiac events were defined as cardiac death or rehospitalization for worsening heart failure.
- Multivariate Cox regression analysis was used to identify independent predictors of cardiac events.
Main Results:
- hsCRP and TNT levels were significantly higher in CHF patients compared to controls and increased with CHF severity.
- Patients experiencing cardiac events had higher hsCRP and TNT levels and lower left ventricular ejection fraction (LVEF).
- hsCRP, TNT, and LVEF were independent predictors of cardiac events in CHF patients.
Conclusions:
- Elevated serum hsCRP concentrations are observed in CHF patients and correlate with disease severity.
- hsCRP is an independent significant predictor of cardiac events in patients with chronic heart failure.
- hsCRP may serve as a valuable prognostic biomarker in the management of CHF.
Objective:
To determine whether high-sensitivity C-reactive protein (hsCRP) has prognostic value in patients with chronic heart failure.
Methods:
Serum hsCRP levels were measured with high-sensitivity assay (IMMAGE Immunochemistry Systems) in 128 patients with CHF and 25 healthy control subjects. Cardiac troponin T (TNT) was measured by electrochemiluminescence immunoassay on an Elecsys1010 automatic analyser. Cardiac events were defined as cardiac death and rehospitalisation because of worsening heart failure during the follow-up period.
Results:
Circulating levels of hsCRP and TNT were significantly higher in patients with CHF than in the 25 healthy people (p=0.0028, p=0.017, respectively) and increased with severity of CHF. During a mean follow-up period of 378 +/- 26 days, 42 (32.8%) of the 128 patients had cardiac events. Levels of hsCRP and TNT were significantly higher (p=0.00031, p=0.00047, respectively) and LVEF was significantly lower (p=0.0052) in patients with cardiac events than in patients without cardiac events. When multivariate Cox proportional hazards regression was performed, we found that hsCRP, TNT, and LVEF were independent significant predictors of cardiac events in patients with CHF (hsCRP: hazard ratio [HR], 3.81; 95% confidence interval [CI], 2.14-9.35; p=0.024; TNT: HR, 2.61; 95%CI, 1.96-4.31; p=0.012; LVEF: HR, 3.52; 95%CI, 2.36-10.37; p=0.024). When Pearson's correlation analyses were performed, we could find a positive correlation between hsCRP and TNT (r=0.493, p=0.0043) and a negative correlation between hsCRP and LVEF(r=-0.354, p=0.0051).
Conclusion:
Serum hsCRP concentrations were elevated in patients with CHF and increased with severity of CHF. It was an independent significant predictor of cardiac events in patients with CHF.
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