High Sensitivity C-Reactive Protein (hsCRP) Assay
- Helps in the evaluation of cardiovascular disease risk in individuals
- Enhances risk assessment and therapeutic outcomes in primary CVD prevention
- Recommended as a more sensitive assay for predicting vascular disease
- Particularly advantageous for assessing the risk in patients with Framingham 10-year risk scores of 10%-20% and/or LDL levels of <160
Features & Benefits
The AHA/CDC Scientific Statement Summary1,2
hsCRP is a global indicator of future vascular events in adults without any previous history of cardiovascular disease (CVD), with acceptable precision levels down to or below 0.3 mg/L
- hsCRP enhances risk assessment and therapeutic outcomes in primary CVD prevention
- hsCRP is particularly advantageous for assessing the risk in patients with
- Framingham 10-year risk scores of 10%-20% and/or
- LDL levels of <160 mg/dL
- hsCRP acts as an independent marker for evaluating the possibility of recurrent cardiac events, such as myocardial infarction or restenosis, after percutaneous coronary intervention
hsCRP in Atherosclerosis and Plaque Instability/Inflammation
With the recognition of the crucial link between arterial damage, inflammatory processes, and coronary atherosclerosis, hsCRP estimation has assumed a vital role in cardiac risk assessment. C-reactive protein is an important pathogenic factor for atherosclerosis and induces several reactions involved in atherothrombogenesis:
- Activates complement and attacks monocytes
- Incites endothelial dysfunction
- Augments a procoagulant state
- Contributes to plaque instability/rupture
hsCRP in Risk Stratification and Risk Assessment
hsCRP levels help in cardiac risk stratification and assessment, and it are a key prognostic factor in conditions such as:2
- Acute coronary syndrome (ACS)
- Peripheral artery disease (PAD)
- Post-MI complications such as cardiac failure3
Multiple decision limits for hsCRP levels, ranging from 3 to 5 mg/L, are used for risk stratification is ACS.
Risk Stratification: hsCRP is used to determine the probability of recurrence of cardiac events in patients with stable coronary heart disease and ACS.
Risk Assessment: The hsCRP assay has been recommended in patients with intermediate risk of coronary heart disease (CHD) in order to determine the need for further evaluation and therapy.
AHA/CDC risk assessment guidelines
Low risk <1 mg/L
Average risk 1-3 mg/L
High risk >3 mg/L
In the CAPTURE trial, CRP levels of >10 mg/L doubled the event rate (mortality or MI), compared to CRP levels of <10 mg/L3
hsCRP in Arterial Restenosis
In patients undergoing percutaneous coronary interventions, hsCRP is a predictor of early complications and late clinical stenosis and mortality.
hsCRP in the Acute Phase of Coronary Events
hsCRP adds prognostic value as an acute phase marker for cardiac risk:
- Predicts the prognosis in ACS, stable angina, unstable angina (UA) and acute myocardial infarction (AMI)
- Adds independent and additive prognostic value to troponin
- Provides additional prognostic value in patients with negative cardiac troponin results
hsCRP in Predicting Future Cardiac Events
hsCRP is a global predictor of future vascular events in adults without known CVD.
Sensitivity for Cardiovascular Applications
Traditional CRP tests cannot detect the low levels of inflammation associated with an increased risk of CVD. Only hsCRP assays can detect these small elevations.
Reliable Answers to Critical Cardiac Questions
Siemens Healthcare Diagnostics was the first company to offer a high-sensitivity C-reactive protein (hsCRP) assay with a cardiac-specific claim. Siemens offers more solutions for cardiac-specific hsCRP testing across multiple instrument platforms.
0.1 - 50 mg/L
6.8% at 1.16 mg/L
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