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The HbA1c/C-Peptide Ratio is Associated With the No-Reflow Phenomenon in Patients With ST-Elevation Myocardial
Kenan Toprak1, Mustafa Kaplangoray2, Tolga Memioğlu3
1Department of Cardiology, Faculty of Medicine, Harran University, Sanliurfa, Turkey.
Insights
The HbA1c/C-peptide ratio (HCR) can predict the no-reflow phenomenon (NR) after ST-elevation myocardial infarction (STEMI) treatment. This ratio offers valuable risk stratification for STEMI patients, independent of diabetes status.
Area of Science:
- Cardiology
- Metabolic Syndrome
Background:
- Primary percutaneous coronary intervention (pPCI) is standard for ST-elevation myocardial infarction (STEMI).
- The no-reflow phenomenon (NR) can occur post-pPCI, leading to adverse outcomes.
- Predictors for NR are crucial for risk stratification and improved patient management.
Purpose of the Study:
- To investigate the association between the HbA1c/C-peptide ratio (HCR) and the incidence of NR in STEMI patients undergoing pPCI.
- To evaluate HCR as an independent predictor of NR, irrespective of diabetic status.
Main Methods:
- A cohort of 1834 STEMI patients undergoing pPCI were analyzed.
- Patients were categorized based on the presence or absence of NR.
- Demographic, clinical, and periprocedural data were compared between groups.
- Multivariable analysis and Receiver Operating Characteristic (ROC) curve analysis were performed.
Main Results:
- No-reflow phenomenon (NR) developed in 19.1% of patients.
- Patients with NR had significantly lower C-peptide levels and higher HbA1c and HCR (P < .001).
- HCR emerged as an independent predictor of NR (P < .05) with 80% specificity and 77% sensitivity in ROC analysis.
Conclusions:
- The HbA1c/C-peptide ratio (HCR) is a significant independent predictor of NR in STEMI patients post-pPCI.
- HCR demonstrates predictive value for NR that is independent of diabetes.
- This ratio may serve as a valuable tool for risk stratification in STEMI patients.
Abstract:
Currently, the gold standard treatment for ST-elevation myocardial infarction (STEMI) is primary percutaneous coronary intervention (pPCI), but even after successful pPCI, a perfusion disorder in the epicardial coronary arteries, termed no-reflow phenomenon (NR), can develop, resulting in short- and long-term adverse events. The present study assessed the relationship between NR and HbA1c/C-peptide ratio (HCR) in 1834 consecutive patients who underwent pPCI due to STEMI. Participants were divided into two groups according to NR status and the demographic, clinical and periprocedural characteristics of the groups were compared. NR developed in 352 (19.1%) of the patients in the study. While C-peptide levels were significantly lower in the NR group, HbA1c and HCR were significantly higher (P < .001, for all). In multivariable analysis, C-peptide, HbA1c, and HCR, were determined as independent predictors for NR (P < .05, for all). In Receiver Operating Characteristic (ROC) analysis, HCR predicted the NR with 80% specificity and 77% sensitivity. In STEMI patients, combining HbA1c and C-peptide in a single fraction has a predictive value for NR independent of diabetes. This ratio may contribute to risk stratification of STEMI patients.
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