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Published on: January 28, 2020
Prognostic Value of Multiple Complete Blood Count-Derived Indices in Intermediate Coronary Lesions
Yuxiu Yang1, Chenxi Song1, Lei Jia1
1Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Insights
The Systemic Inflammation Response Index (SIRI) is a key inflammatory biomarker for predicting major adverse cardiovascular events in patients with intermediate coronary stenosis. SIRI and AISI showed the strongest prognostic value, enhancing risk prediction beyond traditional models.
Area of Science:
- Cardiology
- Inflammation Biomarkers
- Predictive Analytics
Background:
- Complete blood count (CBC)-derived indices are emerging as potential inflammatory biomarkers for cardiovascular disease outcomes.
- Validation of these indices in patients with intermediate coronary stenosis is limited.
Purpose of the Study:
- To evaluate the prognostic value of various CBC-derived inflammatory indices in patients with intermediate coronary stenosis.
- To identify the most effective index for predicting major adverse cardiovascular events (MACEs).
Main Methods:
- A cohort of 1527 patients with intermediate coronary stenosis was analyzed.
- Neutrophil-lymphocyte ratio (NLR), derived NLR, monocyte-lymphocyte ratio (MLR), platelet-lymphocyte ratio (PLR), systemic immune inflammation index (SII), system inflammation response index (SIRI), and aggregate index of systemic inflammation (AISI) were examined.
- The primary endpoint was a composite of MACEs over a median follow-up of 6.11 years.
Main Results:
- The Systemic Inflammation Response Index (SIRI) demonstrated the highest predictive power, evidenced by the largest area under the receiver operator characteristic curve.
- In multivariable analysis, SIRI (HR 1.588) and Aggregate Index of Systemic Inflammation (AISI) (HR 1.673) were significant independent predictors of MACEs.
- Predictive performance of these indices improved in patients with a lower burden of modifiable cardiovascular risk factors, with SIRI offering the best incremental value.
Conclusions:
- CBC-derived indices, particularly SIRI and AISI, are valuable prognostic markers for MACEs in patients with intermediate coronary stenosis.
- SIRI shows superior performance and incremental predictive value compared to other inflammatory indices and traditional risk models.
- These findings support the use of SIRI in risk stratification for patients with intermediate coronary stenosis.
Abstract:
Complete blood count (CBC)-derived indices have been proposed as reliable inflammatory biomarkers to predict outcomes in the context of coronary artery disease. These indices have yet to be thoroughly validated in patients with intermediate coronary stenosis. Our study included 1527 patients only with intermediate coronary stenosis. The examined variables were neutrophil-lymphocyte ratio (NLR), derived NLR, monocyte-lymphocyte ratio (MLR), platelet-lymphocyte ratio (PLR), systemic immune inflammation index (SII), system inflammation response index (SIRI), and aggregate index of systemic inflammation (AISI). The primary endpoint was the composite of major adverse cardiovascular events (MACEs), including all-cause death, non-fatal myocardial infarction, and unplanned revascularization. Over a follow-up of 6.11 (5.73-6.55) years, MACEs occurred in 189 patients. Receiver operator characteristic curve analysis showed that SIRI outperformed other indices with the most significant area under the curve. In the multivariable analysis, SIRI (hazard ratio [HR] 1.588, 95% confidence interval [CI] 1.138-2.212) and AISI (HR 1.673, 95% CI 1.217-2.300) were the most important prognostic factors among all the indices. The discrimination ability of each index was strengthened in patients with less burden of modifiable cardiovascular risk factors. SIRI also exhibited the best incremental value beyond the traditional cardiovascular risk model.
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