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Investigating the Correlation between Serum Amyloid A and Infarct-Related Artery Patency Prior to Percutaneous
Hao Ji1, Senjiang Chen1, Qingqing Hu1
1The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China.
Insights
Serum amyloid A (SAA) predicts infarct-related artery (IRA) patency in ST-elevation myocardial infarction (STEMI) patients undergoing percutaneous coronary intervention (PCI). Higher SAA levels indicate a greater likelihood of IRA occlusion before PCI.
Area of Science:
- Cardiology
- Biomarkers
- Interventional Cardiology
Background:
- Serum amyloid A (SAA) is recognized as a cardiovascular risk factor.
- SAA may predict infarct-related artery (IRA) patency in ST-elevation myocardial infarction (STEMI) patients.
- Percutaneous coronary intervention (PCI) is a standard treatment for STEMI.
Purpose of the Study:
- To investigate the association between pre-PCI SAA levels and IRA patency in STEMI patients.
- To evaluate SAA as a potential predictor of IRA patency.
- To determine the diagnostic performance of SAA for IRA patency.
Main Methods:
- Serum amyloid A (SAA) levels were measured in 363 STEMI patients undergoing PCI.
- Patients were categorized into occlusion (TIMI 0-2) and patency (TIMI 3) groups based on IRA flow.
- Receiver operating characteristic (ROC) curve analysis and multivariate logistic regression were employed.
Main Results:
- Pre-PCI SAA levels were significantly higher in patients with IRA occlusion compared to those with patency.
- SAA demonstrated good diagnostic performance with an area under the ROC curve (AUC) of .833.
- SAA was identified as an independent predictor of IRA patency (OR = 1.041, P < .001).
Conclusions:
- Serum amyloid A (SAA) is a potential predictor of infarct-related artery (IRA) patency in STEMI patients prior to PCI.
- Elevated SAA levels are associated with IRA occlusion.
- SAA measurement could aid in risk stratification and treatment decisions for STEMI patients.
Abstract:
Serum amyloid A (SAA) is a cardiovascular risk factor and may serve as a predictor of infarct-related artery (IRA) patency in patients with ST-segment elevation myocardial infarction (STEMI). We measured SAA levels in STEMI patients who underwent percutaneous coronary intervention (PCI) and investigated their association with IRA patency. According to the Thrombolysis in Myocardial Infarction (TIMI) flow grade, 363 STEMI patients undergoing PCI in our hospital were divided into an occlusion group (TIMI 0-2) and a patency group (TIMI 3). The SAA level before PCI was significantly higher in STEMI patients with IRA occluded than in those with patent ones. At a cutoff value of 36.9 mg/L, SAA had a sensitivity of 63.0% and a specificity of 90.6% (area under the ROC curve [AUC] = .833, 95% CI: .793-.873, P < .001). Multivariate logistic regression analysis showed that SAA was an independent predictor of IRA patency in STEMI patients before PCI (odds ratio [OR] = 1.041, 95% CI: 1.020-1.062, P < .001). SAA can be used as a potential predictor of IRA patency in STEMI patients before PCI.
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