Markers of Autolysis in Acute ST Elevation Myocardial Infarction
P Maharjan1, R Manandhar1, W Xu1
1Department of Cardiovascular Unit, First Affiliated Hospital of Xi'an Jiao Tong University School of Medicine, Xi'an, Shaanxi, China.
Insights
Higher levels of MPV, Lp(a), TC, and CK-MB, along with wall motion abnormalities, indicate total occlusion of the infarct-related artery (IRA). These markers can help identify patients not needing further intervention for IRA patency.
Area of Science:
- Cardiology
- Biomarkers
- Interventional Cardiology
Background:
- Reliable noninvasive markers for infarct-related artery (IRA) patency are limited.
- Early identification of patent IRA can prevent unnecessary interventions like repeat thrombolysis or rescue PCI.
Purpose of the Study:
- To identify factors differentiating patients with patent IRA from those with total IRA occlusion.
- To determine if demographic, risk, clinical, or blood parameters affect IRA patency and patient outcomes in STEMI.
Main Methods:
- Retrospective study of STEMI patients undergoing primary PCI.
- Analysis of demographic characteristics, CHD risk markers, clinical data, and blood parameters.
- Comparison between patients with patent IRA and total IRA occlusion.
Main Results:
- Higher MPV, Lp(a), CK-MB, and total cholesterol levels were observed in the total occlusion group.
- Increased wall motion abnormality (77.2% vs. 54.2%) and longer hospital stays were noted in the total occlusion group.
- Significant differences (P < 0.001) were found for MPV, Lp(a), and CK-MB levels between groups.
Conclusions:
- MPV, Lp(a), TC, and CK-MB levels, along with myocardial wall motion, may serve as markers for IRA patency status.
- These markers can aid in the early identification of patients with IRA who may not require repeat thrombolysis or rescue PCI.
- This could optimize treatment strategies and resource allocation in STEMI management.
Introduction:
The availability of reliable noninvasive markers for infarct-related artery (IRA) patency status are very limited, otherwise could allow early identification of patients with patent IRA, for whom repeat thrombolysis or rescue percutaneous coronary intervention (PCI) are not necessary.
Methods:
We conducted a single centered retrospective study of STEMI patients undergoing primary PCI to determine how various factors such as demographic characteristics, risk markers of coronary heart disease, clinical and blood parameters present differently in patients with higher coronary flow and patent infarct related artery from patients with total occlusion at the time of initial angiography and how they affect in outcome of the disease.
Results:
MPV level (11.96 fL vs. 10.92 fL, P < 0.001), Lp (a) level (179.57 nmol/l vs 141.16 nmol/l , p < 0.001), CK-MB (290.2 vs. 190.98, P < 0.001), total cholesterol level (4.11 mmol/L vs. 3.8 mmol/L, p < 0.02) in total occlusion group were higher than in the patent IRA group. Wall motion abnormality was 77.2% for 203 patients with total occlusion group and 54.2% for 83 patients with patent IRA group (P<0.01). Mean hospital stay days were higher in total occlusion group as compared to the patent IRA group P < 0.01.
Conclusions:
MVP, Lp (a), TC, and CK-MB levels and myocardial wall motion at the presentation may play the role of markers for IRA patency status that will help in early identification of patients with IRA, for whom repeat thrombolysis or rescue PCI may not be required.
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