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Published on: June 28, 2019
C-reactive protein predicts functional status and correlates with left ventricular ejection fraction in patients with
Ramón Arroyo-Espliguero1, Pablo Avanzas, Juan Quiles
1Division of Cardiology, Hospital General Universitario, Guadalajara, Spain.
Insights
High-sensitivity C-reactive protein (hs-CRP) inversely correlates with left ventricular ejection fraction (LVEF) and predicts congestive heart failure (CHF) symptoms in patients with chronic stable angina (CSA). This finding highlights hs-CRP
Area of Science:
- Cardiology
- Biomarkers
- Inflammation
Background:
- C-reactive protein (CRP) is recognized as a cardiovascular risk marker.
- CRP may also play a role in the pathogenesis of atherosclerosis and myocardial injury.
- Understanding CRP's role in heart failure is crucial for patient management.
Purpose of the Study:
- To investigate the relationship between CRP, left ventricular ejection fraction (LVEF), and congestive heart failure (CHF) symptoms.
- To assess CRP as a predictor of heart failure severity in patients with chronic stable angina (CSA).
Main Methods:
- 841 patients with CSA undergoing coronary angiography were studied.
- Symptoms of CHF were assessed using the New York Heart Association (NYHA) functional classification.
- High-sensitivity CRP (hs-CRP) levels were measured using a high-sensitivity immunoassay.
Main Results:
- Serum hs-CRP levels showed a significant inverse correlation with LVEF (r=-0.11; P=0.004).
- Moderate-to-severe CHF prevalence correlated significantly with hs-CRP quartiles (P(trend)<0.0001).
- Hs-CRP was an independent predictor of NYHA functional classes III-IV (OR 2.2 [1.3-3.6]; P=0.002), alongside age, female gender, and BMI.
Conclusions:
- Hs-CRP serum concentrations are inversely correlated with LVEF in CSA patients.
- Hs-CRP is an independent predictor of NYHA functional class, indicating heart failure severity.
- Hs-CRP may serve as a valuable biomarker for assessing CHF risk and severity in CSA.
Unlabelled:
C-reactive protein (CRP) is a marker for cardiovascular risk but may also participate in the pathogenesis of atherosclerosis and myocardial injury. We sought to investigate the relationship among CRP, left ventricular ejection fraction (LVEF) and symptoms of congestive heart failure (CHF) in patients with chronic stable angina (CSA) pectoris.
Methods:
We studied 841 patients (63+/-10 years, 72% men) with CSA undergoing coronary angiography. Symptoms of CHF were assessed using the New York Heart Association (NYHA) functional classification. CRP measurements were performed using a high sensitivity (hs-) immunoassay at the time of diagnostic coronary angiography.
Results:
Baseline serum hs-CRP levels showed a significant correlation with LVEF (r=-0.11; P=0.004), and prevalence of moderate-to-severe CHF correlated with serum hs-CRP quartiles (P(trend)<0.0001). After adjustment, age (P=0.004), female gender (P=0.03), body mass index (P<0.0001) and hs-CRP (OR 2.2 [1.3-3.6] CI 95%; P=0.002) were independent predictors of NYHA functional classes III-IV irrespective of LVEF and angiographic severity of CAD. A CRP value of 3.2mg/L had a sensitivity of 72%, a specificity of 75%, and a negative predictive value of 96% for detecting an impaired functional class.
Interpretation:
Hs-CRP serum concentrations showed an inverse correlation with LVEF and were an independent predictor of NYHA functional class in patients with CSA.
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