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- Title
Systemic Immune-Inflammation Index Predicts 3-Month Functional Outcome in Acute Ischemic Stroke Patients Treated with Intravenous Thrombolysis.
- Authors
Weng, Yiyun; Zeng, Tian; Huang, Honghao; Ren, Junli; Wang, Jianing; Yang, Chenguang; Pan, Wenjing; Hu, Jingyu; Sun, Fangyue; Zhou, Xinbo; Qiu, Haojie; Gao, Yufan; Gao, Beibei; Chi, Lifen; Chen, Guangyong
- Abstract
Background and Purpose: Systemic immune-inflammation index (SII), a novel inflammation index derived from counts of circulating platelets, neutrophils and lymphocytes, has been studied in developing incident cancer. However, the clinical value of SII in acute ischemic stroke (AIS) patients had not been further investigated. Therefore, we aimed to explore the association between SII and severity of stroke as well as 3-month outcome of AIS patients. Methods: A total of 216 AIS patients receiving intravenous thrombolysis (IVT) and 875 healthy controls (HCs) were retrospectively recruited. Blood samples were collected within 24h after admission. Severity of stroke was assessed by the National Institute of Health stroke scale (NIHSS) scores on admission and poor 3-month functional outcome was defined as Modified Rankin Scale (mRS) > 2. Results: SII levels in AIS patients were higher than in HCs. The cut-off value of SII is 545.14× 109/L. Patients with SII > 545.14× 109/L had higher NIHSS scores (median: 5 vs 9, p < 0.001), a positive correlation between SII and NIHSS was observed (rs = 0.305, p < 0.001). Multivariate logistic regression analyses showed that high SII was one of the independent risk factors for poor prognosis at 3 months of AIS patients (OR = 3.953, 95% CI = 1.702– 9.179, p = 0.001). The addition of SII to the conventional prognostic model improved the reclassification (but not discrimination) of the functional outcome (net reclassification index 39.3%, p = 0.007). Conclusion: SII is correlated with stroke severity at admission and can be a novel prognostic biomarker for AIS patients treated with IVT.
- Subjects
STROKE; STROKE patients; FUNCTIONAL assessment; ISCHEMIC stroke; LOGISTIC regression analysis; PROGNOSTIC models
- Publication
Clinical Interventions in Aging, 2021, Vol 16, p877
- ISSN
1178-1998
- Publication type
Article
- DOI
10.2147/CIA.S311047