Analysis of the Correlation between SII, NAR and Short-Term Prognosis of Intravenous Thrombolysis in Patients with Acute Cerebral Infarction
Objective: To analyze the correlation between systemic immune inflammation index (SII), neutrophil to albumin ratio (NAR) and short-term prognosis of intravenous thrombolysis in acute cerebral infarction. Methods: The clinical data of 199 patients with acute cerebral infarction who underwent intravenous thrombolysis with alteplase within 4.5 hours of onset in the stroke center of the Second Affiliated Hospital of Anhui Medical University from September 2021 to September 2023 were collected. According to the mRS score of 3 months, the short-term prognosis of patients was divided into good prognosis group and poor prognosis group. The general data, SII and NAR of the two groups were compared, and the univariate analysis indexes with statistical differences were included in the binary logistic regression analysis to explore the independent factors affecting the short-term prognosis, and the ROC curve was used to explore the predictive value of SII and NAR for short-term prognosis. Results: Compared with the results of the two groups, the history of atrial fibrillation, SII, NAR, white blood cell count, total bilirubin, creatinine and triglyceride were statistically significant (P < 0.05). Binary Logistic regression analysis showed that SII and NAR were independent influencing factors of poor prognosis (P < 0.05). ROC curve analysis showed that the area under the curve of SII predicting poor prognosis was 0.826, 95.0% confidence interval (0.755~0.898, P < 0.05), the best cut-off value was 781.16, the specificity was 96.2%, and the sensitivity was 52.5%. The area under the curve of NAR predicting prognosis was 0.813, 95.0% confidence interval (0.735~0.891, P < 0.05), the best cut-off value was 126.31, the specificity was 83.6%, and the sensitivity was 67.5%. The area under the combined prediction curve was 0.839, 95.0% confidence interval (0.769~0.910, P < 0.05), specificity was 91.2%, and sensitivity was 62.5%. Conclusion: High SII and high NAR before thrombolysis are independently and positively correlated with the short-term poor prognosis of patients with acute cerebral infarction after intravenous thrombolysis, and can be used to predict the poor prognosis of patients. The predictive value of the combination of the two is higher than that of SII, and SII is higher than NAR.
Cerebral Infarction
急性脑梗死(Acute Cerebral Infarction, AIS)是导致我国老年人死亡和残疾的首要原因,并随着社会经济水平的发展,近年来呈现年轻化趋势
纳入2021年9月至2023年9月就诊于安徽医科大学第二附属医院急诊绿道收治的共199例患者。纳入标准:1) 年龄 > 18岁;2) 符合《中国急性缺血性脑卒中诊治指南2018》诊断标准
回顾性收集病人性别、年龄、既往史(高血压、糖尿病、心房颤动、脑梗死)、吸烟史、饮酒史和用药史(他汀药、抗血小板聚集药)及溶栓前的实验室指标,并根据公式(SII = 中性粒细胞计数 × 血小板计数/淋巴细胞计数,NAR = 淋巴细胞计数/血清白蛋白)计算出SII及NAR。在研究对象发病后90 d采用改良Rankin量表(mRS)评分评估患者的短期预后,mRS评分0~2分为预后良好,纳入预后良好组;3~6分为预后不良
采用SPSS26.0统计学软件进行数据处理及统计分析。计量资料符合正态分布的用均数±标准差表示,两组间采用两独立样本t检验进行比较;不呈正态分布的计量资料以M (P25, P75)表示,两组间比较采用Mann-Whitney U检验;计数资料以例数和百分率表示,组间比较采用χ2检验;采用多因素Logistic回归进行危险因素分析;采用受试者工作特征(ROC)曲线下面积(AUC)评估SII、NAR及两者联合指标预测急性脑卒中不良预后的效能。以P < 0.05为差异有统计学意义。
在两组一般资料比较中的结果显示,心房颤动病史在是预后不良的影响因素(P < 0.05),而两组患者在性别、年龄、既往史、吸烟饮酒史及药物服用史等方面无统计学差异(P > 0.05)。见
预后良好组(n = 159) |
预后不良组(n = 40) |
P值 |
|
性别 |
0.428 |
||
女 |
53 (33.3) |
16 (40.0) |
续表
男 |
106 (66.7) |
24 (60.0) |
|
年龄(岁) |
63.00 (54.00,72.00) |
67.00 (58.00,74.50) |
0.058 |
高血压史[例(%)] |
120 (75.5) |
28 (70.0) |
0.479 |
糖尿病史[例(%)] |
42 (26.4) |
9 (22.5) |
0.612 |
心房颤动史[例(%)] |
22 (13.8) |
13 (32.5) |
0.006 |
吸烟[例(%)] |
56 (35.2) |
13 (32.5) |
0.747 |
饮酒[例(%)] |
50 (31.4) |
12 (30.0) |
0.860 |
抗血小板药[例(%)] |
60 (37.7) |
9 (22.5) |
0.070 |
他汀药[例(%)] |
60 (37.7) |
16 (40.0) |
0.792 |
脑梗死既往史[例(%)] |
23 (14.5) |
7 (17.5) |
0.632 |
DNT (min) |
43.21 ± 15.78 |
42.08 ± 16.97 |
0.690 |
入院收缩压(mmHg) |
153.34 ± 20.80 |
150.38 ± 21.41 |
0.424 |
入院舒张压(mmHg) |
89.02 ± 14.46 |
87.25 ± 15.98 |
0.499 |
实验室指标的单因素分析结果表明,预后不良组的SII、NAR、白细胞计数、总胆红素、肌酐、甘油三酯均高于预后良好组,且差异具有统计学意义(P < 0.05);而两组在红细胞计数、单核细胞计数、总蛋白、谷丙转氨酶、谷草转氨酶等实验室指标上无统计数差异(P > 0.05)。见
预后良好组(n = 159) |
预后不良组(n = 40) |
||
SII (×109/L) |
377.19 (277.27,507.59) |
787.78 (462.58,1033.86) |
P < 0.001 |
NAR (×106/g) |
101.91 (79.49,120.45) |
146.94 (109.96,202.38) |
P < 0.001 |
PT (s) |
11.40 (10.50,108.30) |
11.50 (10.73,19.23) |
0.741 |
红细胞计数(×1012/L) |
4.58 (4.21,5.00) |
4.48 (4.14,4.85) |
0.344 |
白细胞计数(×109/L) |
6.82 (5.79,8.07) |
8.16 (6.64,9.48) |
P < 0.001 |
单核细胞计数(×109/L) |
0.44 (0.34,0.53) |
0.51 (0.34,0.65) |
0.76 |
纤维蛋白原(g/L) |
2.76 (2.36,3.09) |
2.92 (2.43,4.06) |
0.126 |
总蛋白(g/L) |
71.00 (38.60,44.00) |
39.15 (36.86,42.83) |
0.511 |
谷丙转氨酶(U/L) |
26.00 (18.00,34.00) |
28.00 (16.25,45.00) |
0.484 |
谷草转氨酶(U/L) |
22.00 (19.00,30.00) |
23.50 (19.25,31.75) |
0.267 |
总胆红素(μmol/L) |
11.70 (8.00,15.10) |
14.45 (8.65,20.15) |
0.047 |
续表
直接胆红素(μmol/L) |
2.40 (1.90,3.10) |
2.50 (1.30,3.30) |
0.545 |
间接胆红素(μmol/L) |
9.10 (5.90,12.00) |
11.70 (5.68,14.55) |
0.108 |
尿素氮(mmol/L) |
5.65 (4.66,6.99) |
5.72 (4.82,8.54) |
0.388 |
尿酸(μmol/L) |
332.00 ± 103.71 |
345.18 ± 105.78 |
0.475 |
肌酐(μmol/L) |
75.00 (63.00,88.00) |
82.50 (66.75,104.25) |
0.034 |
总胆固醇(mmol/L) |
4.86 ± 1.19 |
4.54 ± 0.97 |
0.125 |
甘油三酯(mmol/L) |
1.31 (0.93,2.01) |
1.06 (0.78,1.57) |
0.048 |
高密度脂蛋白(mmol/L) |
1.15 (0.98,1.35) |
1.27 (1.03,1.42) |
0.168 |
低密度脂蛋白(mmol/L) |
3.08 (2.56,3.56) |
2.78 (2.43,3.31) |
0.093 |
同型半胱氨酸(μmol/L) |
14.1 (12.00,17.5) |
15.40 (12.5,17.43) |
0.291 |
将上述单因素分析有意义的指标纳入到二元Logistic回归方程中,结果显示SII (OR = 1.003, 95% CI: 1.000~1.005, P < 0.05)、NAR (OR = 1.029, 95% CI: 1.002~1.058, P < 0.05)是预后不良的独立影响因素(P < 0.05)。见
回归系数 |
标准误差 |
Wald |
OR |
95% CI |
P值 |
|
心房颤动史 |
0.974 |
0.582 |
2.801 |
2.649 |
0.846~8.291 |
0.094 |
白细胞计数 |
−0.271 |
0.246 |
1.218 |
0.762 |
0.471~1.234 |
0.270 |
SII |
0.003 |
0.001 |
4.986 |
1.003 |
1.000~1.005 |
0.026 |
NAR |
0.029 |
0.014 |
4.431 |
1.029 |
1.002~1.058 |
0.035 |
总胆红素 |
0.044 |
0.037 |
1.455 |
1.045 |
0.973~1.019 |
0.228 |
肌酐 |
0.006 |
0.007 |
0.867 |
1.006 |
1.006~0.993 |
0.352 |
甘油三酯 |
−0.168 |
0.319 |
0.277 |
0.846 |
0.453~1.579 |
0.599 |
常量 |
−5.625 |
1.433 |
15.409 |
0.004 |
0 |
对SII、NAR及两者联合指标进行ROC曲线,分析结果显示,SII预测AIS患者不良预后的曲线下面积0.826,95.0%可信区间(0.755~0.898, P < 0.05),最佳截点值781.16,特异度96.2%,敏感度52.5%;NAR的曲线下面积0.813,95.0%可信区间(0.735~0.891, P < 0.05),最佳截点值126.31,特异度83.6%,敏感度67.5%。联合指标预测曲线下面积0.839,95.0%可信区间(0.769~0.910, P < 0.05),特异度91.2%,敏感度62.5%。根据曲线下面积可知,联合指标的预测价值大于SII、NAR,而SII的预测价值高于NAR。见
本研究发现SII及NAR与AIS患者静脉溶栓后的不良预后独立相关,均为其90 d预后不良的独立危险因素。NAR相对于SII来说预测预后不良的能力较强,而SII及NAR两者联合指标对溶栓患者不良预后的预测能力比SII、NAR单独的预测能力更好。
目前越来越多的研究表明在AIS的发生和发展中炎症机制起着不可或缺的作用。炎症介质在正常脑组织中表达水平很低,当脑组织发生缺血缺氧损伤后,可诱导促炎性细胞因子的释放,炎症反应加剧了缺血性脑损伤和神经功能障碍,缺血组织释放的趋化因子和细胞因子可促进外周循环白细胞向缺血部位的浸润
另外,本研究也有存在一些局限性。首先,这本研究为单一中心数据的回顾性研究,其结果有一定的偏倚性。其次,本研究样本量相对较小,需要用更大的数据库进一步研究。此外,本研究的数据具有区域性、种族性、偶然性等。因此要将SII、NAR作为预后生物标志物,其临床意义必须得到充分的验证,所以仍需要进行更大规模的前瞻性、大样本、多中心的临床研究,力求尽可能精准评估AIS患者的临床预后。
*通讯作者。