Related Experiment Video
Updated: May 8, 2026

Coronary Progenitor Cells and Soluble Biomarkers in Cardiovascular Prognosis after Coronary Angioplasty
Published on: January 28, 2020
[Association between high-sensitivity C-reactive protein and contrast-induced nephropathy after primary percutaneous
Yi-ting He1, Ning Tan, Yuan-hui Liu
1Department of Cardiology, Guangdong Academy of Medical Sciences, Guangzhou, China.
Insights
High-sensitivity C-reactive protein (hs-CRP) is linked to contrast-induced nephropathy (CIN) in ST-segment elevated myocardial infarction (STEMI) patients. Higher hs-CRP levels post-percutaneous coronary intervention (PCI) increase the risk of developing CIN.
Area of Science:
- Cardiology
- Nephrology
- Biomarkers
Context:
- ST-segment elevated myocardial infarction (STEMI) is a critical cardiovascular condition.
- Percutaneous coronary intervention (PCI) is a common treatment for STEMI.
- Contrast-induced nephropathy (CIN) is a significant complication following PCI, particularly in patients with STEMI.
Purpose:
- To investigate the association between high-sensitivity C-reactive protein (hs-CRP) levels and the incidence of CIN.
- To determine if hs-CRP can serve as a predictor for CIN in STEMI patients undergoing PCI.
Summary:
- A study of 220 STEMI patients undergoing primary PCI found a significant positive correlation between hs-CRP levels and CIN incidence.
- Patients in higher hs-CRP quartiles exhibited a markedly increased risk of developing CIN.
- Multivariate analysis confirmed hs-CRP as an independent predictor of CIN, even after adjusting for traditional risk factors.
Impact:
- Identifies hs-CRP as a valuable biomarker for stratifying CIN risk in STEMI patients post-PCI.
- May guide clinical decision-making and preventive strategies to mitigate CIN development.
- Contributes to a better understanding of the inflammatory pathways involved in CIN pathogenesis.
Objective:
To explore the association between high-sensitivity C-reactive protein (hs-CRP) and contrast-induced nephropathy (CIN) in patients with ST-segment elevated myocardial infarction (STEMI) undergoing percutaneous coronary intervention (PCI) .
Methods:
A total of 220 STEMI patients undergoing primary PCI from Guangdong general hospital were recruited. Patients were divided into four groups according to the quartile of hs-CRP (Q1 group:hs-CRP < 6.26 mg/L,Q2 group:6.26-14.44 mg/L, Q3 group:14.45-33.08 mg/L, Q4 group:hs-CRP > 33.08 mg/L) . Baseline data, CIN incidence and other in-hospital outcomes were compared among groups. CIN was defined as an increase in serum creatinine of more than 5 mg/L from baseline within 48-72 hours after contrast media exposure. Receiver operator characteristics (ROC) curves and multivariate logistic regression were used to assessed the correlation between hs-CRP and CIN.
Results:
CIN occurred in 21 (9.8%) patients. CIN incidence of hs-CRP quartitles were 1.8%(1/55), 1.8% (1/55), 14.5% (8/55) and 20.0% (11/55) (P-trend < 0.01), respectively. In-hospital death (P-trend > 0.05) , required renal replace therapy (P-trend > 0.05) were similar among groups. ROC analysis revealed that the optimal cutoff value of hs-CRP to predict the onset of CIN was 16.85 mg/L (sensitivity: 81.0%, specificity: 61.8%, AUC: 0.748). Univariate logistic analysis showed that hs-CRP was strongly related with CIN incidence (OR = 6.88,95%CI:2.23-21.21, P < 0.01). Multivariate logistic regression analysis showed that after adjusting other traditional risk factors including female gender, anemia, ACEI/ARB use, IABP support, LVEF < 40%, age > 75 years, baseline eGFR and diabetes, hs-CRP > 16.85 mg/L was still a significant independent predictor of CIN in patients with STEMI undergoing primary PCI. Additionally, age > 75 years (OR = 7.27,95%CI:1.85-28.63, P < 0.01), eGFR (OR = 6.38,95% CI:1.48-27.41, P < 0.05) were also independent risk factors of CIN.
Conclusions:
hs-CRP is positively correlated with CIN incidence. STEMI patients with higher hs-CRP level post PCI is at higher risk of developing CIN.
Related Concept Videos
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
Cardiac Catheterization I: Pre-Procedure Overview
Acute Coronary Syndrome I: Introduction
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations
Acute Kidney Injury IV: Diagnostic Studies and Prevention