Related Experiment Video
Updated: Aug 16, 2026

Coronary Progenitor Cells and Soluble Biomarkers in Cardiovascular Prognosis after Coronary Angioplasty
Published on: January 28, 2020
Inflammatory markers predict late cardiac events in patients who are exhausted after percutaneous coronary
Martijn Kwaijtaal1, Rob van Diest, Frits W Bär
1Department of Medical Microbiology, University Hospital Maastricht, P. Debeyeplein 25, P.O. Box 5800, 6202 AZ, Maastricht, Limburg, The Netherlands. mkw@lmib.azm.nl
Insights
Elevated levels of inflammatory markers like interleukin-6 (IL-6) predict late cardiac events after coronary intervention. These markers, particularly IL-6, show prognostic value and temporal stability in coronary artery disease (CAD) patients.
Area of Science:
- Cardiovascular Medicine
- Immunology
- Biomarkers
Background:
- Chronic inflammation is a key factor in coronary artery disease (CAD) development.
- Predicting late cardiac events after percutaneous coronary intervention (PCI) is crucial for patient management.
Purpose of the Study:
- To evaluate the prognostic significance of inflammatory markers for late cardiac events (>6 months post-PCI).
- To assess the temporal stability of these inflammatory markers over time.
Main Methods:
- 234 patients undergoing successful PCI were monitored.
- Serum levels of C-reactive protein (CRP), IL-6, TNF-alpha, IL-10, IL-1ra, IL-8, and neopterin were measured at baseline, 6, and 18 months post-PCI.
- Cox proportional hazards analysis was used to determine prognostic value for late cardiac events (n=25) over a 24-month follow-up.
Main Results:
- Elevated baseline IL-6, CRP, and IL-10 predicted increased risk of late cardiac events.
- Sustained high IL-6 levels at 6 months post-PCI also significantly increased event risk.
- Elevated IL-1 receptor antagonist (IL-1ra) at 6 months was also associated with higher event risk.
- Most markers demonstrated high temporal stability, with IL-6 showing the highest stability.
Conclusions:
- Inflammatory markers, especially IL-6, serve as valuable predictors for late cardiac events following PCI.
- Chronic inflammation plays a significant role in the pathophysiology and progression of CAD.
- Monitoring inflammatory markers may aid in risk stratification and personalized treatment strategies for CAD patients.
Abstract:
Chronic inflammation is one of the main underlying mechanisms in the development of coronary artery disease (CAD). We investigated the prognostic value of inflammatory markers for cardiac events occurring more than 6 months after percutaneous coronary intervention (PCI), i.e. late cardiac events, furthermore we investigated the temporal stability of these markers. Exhausted patients (234) recently treated by successful PCI were studied. Serum samples collected about 6 weeks after PCI (baseline), 6 and 18 months after baseline were analyzed for CRP, IL-6, tumour necrosis factor (TNF-alpha), IL-10, IL-1ra, IL-8 and neopterin. In the mean cardiac follow-up of 24 months, 25 late cardiac events occurred. Cox proportional hazards analysis was used to determine the prognostic value. Elevated concentrations of IL-6 at baseline and 6 months later increased the risk of late cardiac events (RR 3.9, CI 1.7-9.0, p 0.00 and RR 3.6, CI 1.6-8.5, p 0.00). Elevated concentrations of CRP and IL-10 at baseline also increased the risk of late cardiac events (RR 2.5, CI 1.1-5.7, p 0.04 and RR 2.5, CI 1.1-5.6, p 0.03) as did IL-1 receptor antagonist at 6 months (RR 2.6, CI 1.1-6.1, p 0.04). Temporal stability was high for most markers, but highest for IL-6. These results support the assumption that chronic inflammation is a pathophysiological mechanism in the development of CAD.
Related Concept Videos
Blood Studies for Cardiovascular System I: Cardiac Biomarkers
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
Acute Coronary Syndrome III: Diagnostic Studies
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations
Pericarditis II: Clinical Features and Diagnostic Tests
Myocarditis I: Introduction