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Updated: Jan 21, 2026

Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
Published on: May 28, 2019
Serum cystatin C levels relate to no-reflow phenomenon in percutaneous coronary interventions in ST-segment elevation
Chao Cheng1, Xiao-Bo Liu2, Shao-Jie Bi1
1Department of Cardiology, The Second Hospital of Shandong University, Jinan, Shandong Province, China.
Insights
No-reflow after primary percutaneous coronary intervention (PPCI) for ST-elevation myocardial infarction (STEMI) is predicted by diabetes, longer pain-to-balloon times, and elevated Cystatin C levels. These factors can help identify high-risk STEMI patients upon admission.
Area of Science:
- Cardiology
- Interventional Cardiology
- Biomarkers
Background:
- No-reflow is a frequent complication during primary percutaneous coronary intervention (PPCI) for ST-segment elevation myocardial infarction (STEMI).
- Identifying predictors for no-reflow is crucial for improving patient outcomes.
Purpose of the Study:
- To identify predictors of the no-reflow phenomenon in patients undergoing PPCI for acute anterior STEMI.
Main Methods:
- A study of 218 patients with acute anterior STEMI who underwent PPCI.
- No-reflow was defined as a coronary TIMI flow grade of ≤ 2.
- Multivariate logistic regression analysis was used to identify predictors.
Main Results:
- The no-reflow phenomenon occurred in 18% of patients.
- Predictors identified included diabetes, longer pain-to-balloon time, and higher Cystatin C (Cys-C) levels.
- Diabetes (OR=0.371), longer pain-to-balloon time (OR=1.147), and higher Cys-C (OR=10.07) were significant predictors.
Conclusions:
- Cystatin C may serve as a valuable predictor for no-reflow post-PPCI in STEMI patients.
- Elevated Cys-C levels on admission could help screen STEMI patients at high risk for no-reflow.
Background/Aim:
No-reflow is a serious and frequent event during primary percutaneous coronary intervention (PPCI) for acute ST segment elevation myocardial infarction (STEMI). The aim of this study was to identify possible predictors for no-reflow.
Patients And Methods:
We investigated 218 patients with acute anterior STEMI who underwent PPCI from December 2016 to December 2018. No-reflow was defined as a coronary TIMI flow grade of ≤ 2. TIMI flow grade 3 was defined as normal reflow.
Results:
In our study, the no-reflow phenomenon was observed in 39 patients (18%) during angiography. The patients of no-reflow group were found to be more older, diabetics, longer pain-to-balloon time, lower blood pressure, higher platelet counts and higher levels of D-Dimer and Cystatin C (Cys-C). In multivariate logistic regression analysis, only diabetes (OR = 0.371, 95% CI: 0.157-0.872, P = 0.023), longer pain-to-balloon time (OR = 1.147, 95% CI: 1.015-1.297, P = 0.028) and higher Cys-C level (OR = 10.07, 95% CI: 2.340-43.377, P = 0.002) were predictors for no-reflow.
Conclusion:
Cys-C might be a useful predictor for the no-reflow phenomenon after PPCI in STEMI patients. It might help to screen STEMI patients with high risk of no-reflow on admission.
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