C-reactive protein as a prognostic tool in cardiovascular practices: should CRP testing be ordered along with lipid

Insights

C-reactive protein (CRP) shows a dose-response link to cardiovascular events, potentially aiding risk assessment in intermediate-risk patients. However, current evidence does not support routine CRP testing alongside lipid profiles.

Area of Science:

  • Cardiovascular Medicine
  • Clinical Chemistry
  • Biomarker Research

Background:

  • C-reactive protein (CRP) is an inflammatory marker.
  • Cardiovascular disease (CVD) risk assessment relies on established factors.
  • The role of CRP in refining CVD risk prediction is under investigation.

Purpose of the Study:

  • To evaluate the association between CRP levels and clinical cardiovascular events.
  • To determine the clinical utility of CRP testing in cardiovascular risk stratification.
  • To assess the added predictive value of CRP beyond traditional risk factors.

Main Methods:

  • Analysis of the dose-response relationship between CRP and cardiovascular events.
  • Examination of CRP's predictive value after adjusting for other risk factors.
  • Evaluation of CRP's utility in specific patient risk groups (10-20% 10-year risk).

Main Results:

  • A graded, dose-response relationship exists between CRP and cardiovascular events (RR≈2).
  • CRP may improve risk estimation for patients with a 10-year risk between 10-20%.
  • CRP testing is unlikely to identify high risk in individuals already at low risk (<10%).

Conclusions:

  • CRP demonstrates a significant association with cardiovascular events, independent of other risk factors.
  • CRP testing may offer clinical utility for intermediate-risk individuals but not for low-risk patients.
  • Further research is needed to confirm CRP's added predictive value; routine co-ordering with lipid profiles is not currently recommended.

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