Analytical performance of the Synchron LX®20 Pro, BN™II and IMMAGE® high sensitivity C-reactive protein assays and concordance in cardiovascular risk stratification

2004 ◽  
Vol 347 (1-2) ◽  
pp. 71-79 ◽  
Author(s):  
Valerie C McWhorter ◽  
Lynne C Ford ◽  
Anthony W Butch
Author(s):  
Snežana Jovičić ◽  
Svetlana Ignjatović ◽  
Marijana Dajak ◽  
Nada Majkić-Singh

AbstractIncreased C-reactive protein (CRP) concentration within the reference interval (<10.0mg/L) is a strong predictor of cardiovascular disease (CVD) in apparently healthy adults. Cutoff points for use of CRP in estimating CVD risk are <1, 1–3 and >3mg/L for low, average and high relative risk, respectively. For measuring CRP concentrations to assess cardiovascular risk, high-sensitivity CRP (hsCRP) assays have been developed. The aim of this study was to evaluate the analytical performance and clinical efficacy for cardiovascular risk estimation of the Olympus immunoturbidimetric latex CRP assay (sensitive application). The comparative method used was the CardioPhase* hsCRP assay, approved by the Food and Drug Administration for use in CVD risk assessment. The imprecision of the Olympus hsCRP assay in the concentration range 0.2–10.0mg/L was 0.38–8.16% within runs and 3.75–9.63% between runs. For method comparison studies, 194 fresh serum samples were selected to cover the interval 0.15–10.0mg/L CRP. Comparison of the Dade Behring and Olympus methods was performed using weighted Deming regression analysis (slope 0.99mg/L, intercept 0.002mg/L, S


2001 ◽  
Vol 47 (11) ◽  
pp. 2044-2046 ◽  
Author(s):  
Ahmad Hamwi ◽  
Thomas Vukovich ◽  
Oswald Wagner ◽  
Helmut Rumpold ◽  
Roswitha Spies ◽  
...  

2021 ◽  
Vol 10 (15) ◽  
pp. 3291
Author(s):  
Hack-Lyoung Kim ◽  
Woo-Hyun Lim ◽  
Jae-Bin Seo ◽  
Sang-Hyun Kim ◽  
Joo-Hee Zo ◽  
...  

Background: Both C-reactive protein (CRP) and arterial stiffness are associated with the development of cardiovascular disease (CVD). This study was performed to investigate whether a combination of these two measurements could improve cardiovascular risk stratification. Methods: A total of 6572 consecutive subjects (mean age, 60.8 ± 11.8 years; female, 44.2%) who underwent both high-sensitivity CRP (hs-CRP) and brachial–ankle pulse wave velocity (baPWV) measurement within 1 week were retrospectively analyzed. Major adverse cardiovascular events (MACE), including cardiovascular death, acute myocardial infarction, coronary revascularization, and stroke were assessed during the clinical follow-up. Results: During a mean follow-up period of 3.75 years (interquartile range, 1.78–5.31 years), there were 182 cases of MACE (2.8%). The elevated baPWV (≥1505 cm/s) (hazard ratio (HR), 4.21; 95% confidence interval (CI), 2.73–6.48; p < 0.001) and hs-CRP (≥3 mg/L) (HR, 1.57; 95% CI, 1.12–2.21; p < 0.001) levels were associated with MACE even after controlling for potential confounders. The combination of baPWV and hs-CRP further stratified the subjects’ risk (subjects with low baPWV and hs-CRP vs. subjects with high baPWV and hs-CRP; HR, 7.08; 95% CI, 3.76−13.30; p < 0.001). Adding baPWV information to clinical factors and hs-CRP had an incremental prognostic value (global Chi-square score, from 126 to 167, p < 0.001). Conclusions: The combination of hs-CRP and baPWV provided a better prediction of future CVD than either one by itself. Taking these two simple measurements simultaneously is clinically useful in cardiovascular risk stratification.


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