The Role of the Systemic Immune-Inflammation Index in Coronary Heart Disease: A Comprehensive Review of Thromboinflammation, Phenotypic Variability, and Clinical Implications - Summary - MDSpire
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The Role of the Systemic Immune-Inflammation Index in Coronary Heart Disease: A Comprehensive Review of Thromboinflammation, Phenotypic Variability, and Clinical Implications
To review the evidence regarding the Systemic Immune-Inflammation Index (SII) in the risk stratification of coronary heart disease (CHD) and its clinical significance.
Key Findings:
SII integrates thrombosis, inflammation, and immunity, providing a composite indicator for thrombo-inflammatory burden, with significant implications for patient management.
SII shows significant phenotype dependence, peaking in acute coronary syndrome (ACS) and serving as a monitoring tool in chronic coronary syndrome (CCS), highlighting its dual role in risk assessment.
A three-tiered threshold system for SII is proposed for risk stratification and monitoring in CHD, enhancing clinical decision-making.
Interpretation:
SII serves as a promising tool for assessing thrombo-inflammatory risk in CHD, with potential for guiding clinical decision-making through tailored interventions.
Limitations:
High heterogeneity in SII cut-off values (459–2,174) raises concerns about standardization and clinical applicability.
Controversial comparisons with other inflammatory indices like SIRI and PIV may affect the interpretation of SII's utility.
Most evidence is derived from observational studies, limiting causal inferences and necessitating further research.
Conclusion:
Future research should focus on validating SII's association with direct thrombotic and inflammatory markers, such as neutrophil extracellular traps (NETs), and exploring its role in precision treatment strategies.
