Could the systemic immune-inflammation index be a predictor to estimate cerebrovascular events in hypertensive
Cihan Aydin1, Şeref Alpsoy1, Aydin Akyüz1
1Department of Cardiology, Faculty of Medicine, Namik Kemal University, Tekirdağ.
Insights
The systemic immune-inflammation index (SII) can predict stroke in hypertensive patients. High SII levels are linked to an increased risk of cerebrovascular events in this population.
Area of Science:
- Cardiovascular Medicine
- Inflammation Research
- Neurology
Background:
- Hypertension is a major risk factor for cardiovascular and cerebrovascular events.
- Inflammatory processes play a key role in hypertension pathogenesis and organ damage.
- Novel inflammatory markers are needed to predict hypertension-related complications.
Purpose of the Study:
- To investigate the predictive value of the systemic immune-inflammation index (SII) for cerebrovascular events in hypertensive patients.
- To assess the relationship between SII and stroke risk in individuals with hypertension.
Main Methods:
- Retrospective analysis of ambulatory blood pressure monitoring data from 379 hypertensive patients.
- Calculation of SII (platelet × neutrophil/lymphocyte ratio) from complete blood count.
- Comparison of SII levels between patients with and without a history of stroke.
Main Results:
- The systemic immune-inflammation index (SII) demonstrated high sensitivity (85.7%) and specificity (84.8%) in predicting stroke.
- Receiver operating characteristic curve analysis indicated an area under the curve of 0.898 for SII.
- Multivariate logistic regression revealed that age and SII were significantly associated with an increased stroke risk.
Conclusions:
- The systemic immune-inflammation index (SII) is a valuable and accessible inflammatory marker for predicting stroke in hypertensive patients.
- Elevated SII levels are indicative of a higher risk of stroke among individuals with hypertension.
Background And Objectives:
Hypertension is one of the most important risk factors for cardiovascular and cerebrovascular events. Inflammatory processes occupy an important place in the pathogenesis of hypertension. Many studies have studied inflammatory markers responsible for the onset of hypertension and organ damage. In this study, we investigated whether the systemic immune-inflammation index (SII) (platelet × neutrophil/lymphocyte), - one of the new inflammatory markers - can be used to predict cerebrovascular events in hypertensive patients.
Methods:
Ambulatory blood pressure monitoring results between January 2019 and June 2020 of approximately 379 patients followed up with hypertension were retrospectively analyzed. These patients were divided into two groups as with or without a previous cerebrovascular event in the analyzed database. In all patients, complete blood count and biochemistry test results just before the cerebrovascular event were found from the database. SII, atherogenic index, neutrophil-lymphocyte ratio were calculated from the complete blood count. Forty-nine patients with stroke (group 1: 12.9%; mean age: 64.3 ± 14.6) and 330 patients without stroke (group 2: 87.1%; mean age: 50.8 ± 14.4).
Results:
Ambulatory blood pressure measurements were lower in group 1. Lipid parameters were also lower in this group. Receiver operating characteristic curve analysis showed that SII had a sensitivity of 85.7% and specificity of 84.8 % for stroke in individuals who participated in the study when the cutoff value of SII was 633.26 × 103 (P = 0.0001) area under curve (95%); 0.898 (0.856-0.941). In multivariate logistic regression analysis, age and SII were significantly associated with a higher risk of stroke. Age, (hazard ratio:1.067; 95% CI, 1.021-1.115), SII (hazard ratio:1.009; 95% CI, 1.000-1.009), respectively.
Conclusions:
In conclusion, SII is a simple, useful new inflammatory parameter for predicting stroke from hypertension. We found that the high SII levels increase the risk of stroke in hypertensive patients.
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