Dataset Information

Systemic immune-inflammation index and in-stent restenosis in patients with acute coronary syndrome: a single-center retrospective study.

ABSTRACT:

Background

In-stent restenosis (ISR) has been shown to be correlated with inflammation. This study aimed to examine the relationship between systemic immune-inflammation index (SII, an innovative inflammatory biomarker) and ISR in acute coronary syndrome (ACS) patients after drug-eluting stent (DES) implantation.

Methods

Subjects who were diagnosed with ACS and underwent DES implantation were enrolled retrospectively. All individuals underwent follow-up coronary angiography at six to forty-eight months after percutaneous coronary intervention (PCI). SII was defined as [(platelet count × neutrophil count)/lymphocyte count], and Ln-transformed SII (LnSII) was carried out for our analysis. Multivariate logistic regression analysis was employed to assess the association between LnSII and DES-ISR.

Results

During a median follow-up period of 12 (11, 20) months, 523 ACS patients who underwent follow-up angiography were included. The incidence of DES-ISR was 11.28%, and patients in the higher LnSII tertile trended to show higher likelihoods of ISR (5.7% vs. 12.1% vs. 16.0%; P = 0.009). Moreover, each unit of increased LnSII was correlated with a 69% increased risk of DES-ISR (OR = 1.69, 95% CI 1.04-2.75). After final adjusting for confounders, a significant higher risk of DES-ISR (OR = 2.52, 95% CI 1.23-5.17) was found in participants in tertile 3 (≥ 6.7), compared with those in tertiles 1-2 (< 6.7). Subgroup analysis showed no significant dependence on age, gender, body mass index, current smoking, hypertension, and diabetes for this positive association (all P for interaction > 0.05).

Conclusion

High levels of SII were independently associated with an increased risk of DES-ISR in ACS patients who underwent PCI. Further prospective cohort studies are still needed to validate our findings.

SUBMITTER: Xie F

PROVIDER: S-EPMC10895800 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature

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Publications

Systemic immune-inflammation index and in-stent restenosis in patients with acute coronary syndrome: a single-center retrospective study.

Xie Feng F Yu Zuozhong Z Xiong Yurong Y Wu Zhijian Z Wu Yanqing Y

European journal of medical research 20240226 1

<h4>Background</h4>In-stent restenosis (ISR) has been shown to be correlated with inflammation. This study aimed to examine the relationship between systemic immune-inflammation index (SII, an innovative inflammatory biomarker) and ISR in acute coronary syndrome (ACS) patients after drug-eluting stent (DES) implantation.<h4>Methods</h4>Subjects who were diagnosed with ACS and underwent DES implantation were enrolled retrospectively. All individuals underwent follow-up coronary angiography at six ...[more]

PMID: 38409069

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Project description:BackgroundA small number of patients can develop stent thrombosis after coronary stent implantation. Diabetes, malignant tumors, anemia, etc. have been identified as risk factors for stent thrombosis. A previous study confirmed that the systemic immune-inflammatory index is associated with venous thrombosis. However, there are no studies investigating the association between the systemic immune-inflammation index and stent thrombosis after coronary stent implantation, and thus, we designed this study.MethodsA total of 887 myocardial infarction patients admitted to the Wuhan University Hospital from January 2019 to June 2021 were included. All of the patients received coronary stent implantation and were followed up for 1 year by clinic visit. The patients were divided into a stent thrombosis group (n=27) and a control group (n=860) according to whether or not they suffered stent thrombosis. The clinical features of the two groups were observed, and the receiver operator characteristic (ROC) curve was used to analyze the predictive value of the systemic immune-inflammation index for stent thrombosis in patients with myocardial infarction after coronary artery stenting.ResultsCompared with the control group, the proportion of stent number ≥4 in the stent thrombosis group was significantly higher (62.96% vs. 38.72%, P=0.011), and the proportion of patients with a systemic immune-inflammation index ≥636 was markedly increased (55.56% vs. 23.26%, P=0.000). The number of stents and the systemic immune-inflammation index were both valuable in predicting stent thrombosis, and the predictive value of the systemic immune-inflammation index was higher, with an area under the curve of 0.736 (95% confidence interval: 0.647-0.824, P=0.000), the best diagnostic value was 636, and the sensitivity and specificity were 0.556 and 0.767. The systemic immune-inflammation index ≥636 and the number of stents ≥4 were independent risk factors for stent thrombosis after coronary stent implantation (P<0.05). Compared with the control group, the incidence of recurrent myocardial infarction was notably increased in the stent thrombosis group (33.33% vs. 3.26%, P=0.000), and mortality was significantly higher in the stent thrombosis group (14.81% vs. 0.93%, P=0.000).ConclusionsThe systemic immune-inflammation index was associated with the development of stent thrombosis in patients with myocardial infarction after coronary stent implantation.

Project description:BackgroundThe triglyceride-glucose (TyG) index is an alternative marker of insulin resistance (IR) and is closely associated with the prevalence and prognosis of atherosclerotic cardiovascular disease (ASCVD). However, the association between the TyG index and in-stent restenosis (ISR) after drug-eluting stent (DES) implantation in patients with acute coronary syndrome (ACS) remains unknown.MethodsThe present study retrospectively recruited patients who were admitted for ACS and underwent coronary angiography at 6 to 24 months after successful DES-based percutaneous coronary intervention (PCI). In addition, we calculated the TyG index with the following formula: Ln(fasting triglyceride [mg/dL] × fasting blood glucose [mg/dL]/2) and divided patients into 3 groups according to the tertile of the TyG index. Most importantly, multivariate logistic regression analysis models were also constructed to assess the association between the TyG index and DES-ISR in patients with ACS.ResultsA total of 1574 patients with ACS (58.4 ± 9.4 years, 77.4% male) were included in this study. At the median follow-up time of 12 (9-14) months, the prevalence of DES-ISR increased stepwise with the increasing tertile of the TyG index (11.6% vs 17.3% vs 19.4%, p = 0.002), and the TyG index was also higher in the ISR group than in the non-ISR group (9.00 ± 0.58 vs 8.84 ± 0.61, p < 0.001). In addition, the positive association between the TyG index and the prevalence of DES-ISR was also determined in the fully adjusted model (TyG, per 1-unit increase: OR 1.424, 95% CI 1.116 to 1.818, p = 0.005; tertile of TyG, the OR (95% CI) values for tertile 2 and tertile 3 were 1.454 (1.013 to 2.087) and 1.634 (1.125 to 2.374), respectively, with tertile 1 as a reference). The association was also reflected in most subgroups. Moreover, adding the TyG index to the predictive model for DES-ISR in patients with ACS could contribute to an increase in C-statistics (0.675 vs 0.659, p = 0.010), categorical net reclassification improvement (0.090, p < 0.001), and integrated discrimination improvement (0.004, p = 0.040).ConclusionAn elevated TyG index was independently and positively associated with DES-ISR in patients with ACS who underwent PCI. However, the incremental predictive value of the TyG index for DES-ISR was slight. To further confirm our findings, future studies are needed.

Project description:BackgroundChronic inflammatory disorders in peritoneal dialysis (PD) contribute to the adverse clinical outcome. Systemic immune inflammation index (SII) is the novel and convenient measurement that is positively associated with various diseases. However, scarce is known regarding the association between SII with all-cause mortality among PD patients.MethodsIn this multi-center retrospective cohort study, 1,677 incident patients with PD were enrolled. Eligible patients were stratified into groups based on SII level: tertile 1(< 456.76), tertile 2(456.76 to 819.03), and tertile 3(> 819.03). The primary endpoint was the all-cause mortality. Both Cox regression analysis and competing risk models were used to examine the association between SII and all-cause mortality. Subgroup analysis was performed to assess the influence of the SII tertiles on all-cause mortality in different subgroups.ResultsDuring the follow-up period of 30.5 ± 20.0 months, 26.0% (437/1,677) patients died, of whom the SII tertile 3 group accounted for 39.1% (171/437) of the deaths. Patients in the SII tertile 3 group had a higher all-cause mortality rate than patients in the SII tertile 1 and 2 groups (log-rank = 13.037, P < 0.001). The SII tertile 3 group was significantly associated with 80% greater risk (95% confidence interval:1.13 to 2.85; P = 0.013) compared with the SII tertile 1 group in multivariable Cox regression analysis. The competing risk model also indicated that the relationship between SII tertiles and all-cause mortality remains (subdistribution hazard ratio: 1.86; 95% confidence interval: 1.15 to 2.02, P = 0.011). Furthermore, the relationship between the log-transformed SII and all-cause mortality in patients with PD was nearly linear (P = 0.124).ConclusionA close relationship was observed between the SII and all-cause mortality in patients undergoing PD, suggesting that more attention should be paid to the SII, which is a convenient and effective measurement in clinical practice.

Dataset Information

Systemic immune-inflammation index and in-stent restenosis in patients with acute coronary syndrome: a single-center retrospective study.

Background

Methods

Results

Conclusion

Publications

Systemic immune-inflammation index and in-stent restenosis in patients with acute coronary syndrome: a single-center retrospective study.

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