Screening for cardiovascular disorders in professional athletes and the role of leukocyte indices in prediction of adverse outcomes of training and competition
Background: Current rates of cardiovascular morbidity among professional athletes depend not only on the sport type, but also on gender, age, ethnicity, screening strategies, and level of physical activity, its frequency, duration and intensity. Biochemical, immunological, hormonal, and psychological parameters are used as overtraining markers; however, they are not accurate enough for prediction of overtraining. In this regard, leukocyte indices calculated from a routine hematology test seem promising. Aim: To screen for cardiovascular disorders in a group of professional athletes with standard cardiological assessment methods, to evaluate the prognostic significance of leukocyte indices in the diagnosis of endogenous inflammation and overtraining, and to compare the values of leukocyte indices with the competitive results of the athletes. Methods: This was an observational cross-sectional, single stage, uncontrolled study in a random subject sample. From September 2021 to August 2022, we examined 180 highly qualified professional athletes on an outpatient basis. The athletes were practicing highly dynamic sport types (contact sport types such as combat sports, ice hockey, and football were excluded). All athletes had a routine hematology test (blood samples were taken 2 to 3 days before competitions) followed by calculation of hematological leukocyte indices: systemic inflammation response index (SIRI), systemic inflammation index (SII), aggregate index of systemic inflammation (AISI), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), monocyte-to-lymphocyte ratio (MLR), leukocyte intoxication index (LII), lymphocyte index (LI), and lymphocyte-to-monocyte ratio index (LMRI). The instrumental cardiovascular assessments included electrocardiography (ECG), 24-hour ECG monitoring, 24-hour blood pressure monitoring, cycling exercise functional test, and echocardiography (EchoCG). The study endpoints were adverse events occurring during the competition: 1) sports injuries during competition evaluated by a staff doctor of the national team; 2) deterioration of athletic performance compared to that shown by the athlete during training sessions (evaluated by a group of trainers). Results: The cohort consisted of 180 highly qualified professional athletes (orienteering, alpine skiing, biathlon, athletics, and swimming), with a mean age of 20.55 ± 2.69 years, including 42.2% (n = 76) women and 57.8% (n = 104) men. A high percentage of individuals with varying degrees of arterial hypertension (AH) were identified based on 24-hour blood pressure monitoring: mild AH, mostly at night, was found in 18.3% (n = 33) of the cases, while severe night AH in 7.2% (n = 13) of the cases. 24-hour ECG monitoring showed the following heart rhythm and conduction disorders: incomplete right bundle branch block in 15% (n = 27), sinus arrhythmia in 48.3% (n = 87), and atrial rhythm in 7.8% (n = 14). At EchoCG, the most common change was an apical or median chord of the left ventricle (44.4%, n = 80). In 13 (7.2%) of the patients, the cycling exercise test was discontinued due to an inadequate increase in diastolic blood pressure. Among the 90 athletes who had a valid assessment of their sports injury history, 26 (28.9%) had a sports injury. Deterioration in athletic performance was recorded in 39 cases (48.1%) of the 81 checkup lists available for the analysis. SIRI, SII, AISI, NLR, PLR, and MLR were significant predictors of deterioration in athletic performance. The deterioration of the competitive sports results was associated with SIRI ≥ 2.097 (sensitivity 53.85%, specificity 85.71%; AUC = 0.713, p 0.001), SII ≥ 616.95 (sensitivity 56.41%, specificity 76.19%; AUC = 0.705, p 0.001), AISI ≥ 180.15 (sensitivity 97.44%, specificity 45.24%; AUC = 0.733, p 0.001). LMRI ≥ 4.44 had 100.00% sensitivity and 60.94% specificity in the prediction of sports injuries (AUC = 0.870, p 0.001). Conclusion: A preliminary screening for cardiovascular disorders aimed primarily at identifying those associated with a sudden cardiac death, is necessary when conducting an in-depth medical examination of athletes. LMRI (threshold value ≥ 4.44), which reflects the relationship between the affecter and effector components of the immune process, can be considered a promising marker of the risk of sports-related injuries.
- Research Article
4
- 10.2147/ijgm.s461708
- Jul 1, 2024
- International journal of general medicine
Immunoinflammatory response can participate in the development of cancer. To investigate the relationship between pretreatment systemic immune inflammatory response index (SII), systemic inflammatory response index (SIRI), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), lymphocyte-to-monocyte ratio (LMR) and lymph node metastasis in patients with papillary thyroid carcinoma (PTC). A retrospective analysis was performed on 547 PTC patients treated in Meizhou People's Hospital from January 2018 to December 2021. Clinicopathological data were collected, including gender, age, Hashimoto's thyroiditis, maximum tumor diameter, extra-membrane infiltration, disease stage, BRAF V600E mutation, pretreatment inflammatory index levels, and lymph node metastasis. The optimal cutoff values of SII, SIRI, NLR, PLR and LMR were calculated by receiver operating characteristic (ROC) curve, and the relationship between inflammatory indexes and other clinicopathological features and lymph node metastasis was analyzed. There were 303 (55.4%) PTC patients with lymph node metastasis. The levels of SII, SIRI, NLR, and PLR in patients with lymph node metastasis were significantly higher than those in patients without lymph node metastasis, while the levels of LMR were significantly lower than those in patients without lymph node metastasis (all p<0.05). When lymph node metastasis was taken as the endpoint, the critical value of SII was 625.375, the SIRI cutoff value was 0.705, the NLR cutoff value was 1.915 (all area under the ROC curve >0.6). The results of regression logistic analysis showed that age <55 years old (OR: 1.626, 95% CI: 1.009-2.623, p=0.046), maximum tumor diameter >1cm (OR: 2.681, 95% CI: 1.819-3.952, p<0.001), BRAF V600E mutation (OR: 2.709, 95% CI: 1.542-4.759, p=0.001), SII positive (≥625.375/<625.375, OR: 2.663, 95% CI: 1.560-4.546, p<0.001), and NLR positive (≥1.915/<1.915, OR: 1.808, 95% CI: 1.118-2.923, p=0.016) were independent risk factors for lymph node metastasis of PTC. Age <55 years old, maximum tumor diameter >1cm, BRAF V600E mutation, SII positive, and NLR positive were independent risk factors for lymph node metastasis in PTC.
- Research Article
172
- 10.2147/cia.s339221
- Dec 1, 2021
- Clinical Interventions in Aging
PurposeStroke is a disease associated with high mortality. Many inflammatory indicators such as neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), lymphocyte to monocyte ratio (LMR) and red blood cell distribution width (RDW) have been documented to predict stroke prognosis, their predictive power is limited. A novel inflammatory indicator called systemic inflammatory response index (SIRI) has been advocated to have an essential role in the prognostic assessment of cancer and infectious diseases. In this study, we attempted to assess the prognosis of stroke by SIRI. Moreover, we compared SIRI with other clinical parameters, including NLR, PLR, LMR and RDW.MethodsThis was a retrospective cohort study. We obtained data of 2450 stroke patients from the Multiparametric Intelligent Monitoring in Intensive Care III database. We used the Cox proportional hazards models to evaluate the relationship between SIRI and all-cause mortality and sepsis. Receiver operating curve (ROC) analysis was used to assess the predictive power of SIRI compared to NLR, PLR, LMR and RDW for the prognosis of stroke. We collected data of 180 patients from the First Affiliated Hospital of Wenzhou Medical University, which used the Pearson’s correlation coefficient to assess the relationship between SIRI and the National Institute of Health stroke scale (NIHSS).ResultsAfter adjusting multiple covariates, we found that SIRI was associated with all-cause mortality in stroke patients. Rising SIRI accompanied by rising mortality. Besides, ROC analysis showed that the area under the curve of SIRI was significantly greater than for NLR, PLR, LMR and RDW. Besides, Pearson’s correlation test confirmed a significant positive correlation between SIRI and NIHSS.ConclusionElevated SIRI was associated with higher risk of mortality and sepsis and higher stroke severity. Therefore, SIRI is a promising low-grade inflammatory factor for predicting stroke prognosis that outperformed NLR, PLR, LMR, and RDW in predictive power.
- Research Article
23
- 10.2147/jir.s418106
- Aug 1, 2023
- Journal of Inflammation Research
The aim of this study was to explore the relationship between functional prognosis and the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), lymphocyte-to-monocyte ratio (LMR) and systemic inflammatory response index (SIRI) in patients with acute ischemic stroke (AIS) at discharge. A total of 861 patients with AIS were enrolled between January 2019 and December 2021. Blood cell counts were collected on admission. Logistic regression analysis was performed to assess the relationship between NLR, PLR, LMR, SIRI and adverse functional outcomes (modified Rankin scale score of 3-6) at discharge. We also used receiver operating characteristic (ROC) curves to estimate the overall ability of NLR, PLR, LMR and SIRI to judge short-term functional outcomes. Associations between NLR, PLR, LMR, and SIRI with length of hospital stay were analyzed by Spearman correlation test. A total of 194 patients (22.5%) had poor functional outcomes at discharge. Multivariate logistic regression analysis showed that NLR (odds ratio [OR], 1.060; 95% confidence interval [CI] 1.004-1.120, P=0.037), PLR (OR, 1.003; 95% CI 1.000-1.005, P=0.018), LMR (OR, 0.872; 95% CI 0.774-0.981, P=0.023) and SIRI (OR, 1.099; 95% CI 1.020-1.184, P=0.013) were independent factors for poor functional outcome. The odds ratios of the highest versus lowest quartiles of NLR, PLR and SIRI were 2.495 (95% CI 1.394-4.466), 1.959 (95% CI 1.138-3.373) and 1.866 (95% CI 1.106-3.146), respectively. The odds ratio of the lowest versus highest quartile of LMR was 2.300 (95% CI 1.331-3.975). The areas under the curve (AUCs) of the NLR, PLR, LMR, and SIRI to discriminate poor functional prognosis were 0.644, 0.587, 0.628, and 0.651, respectively. NLR, LMR, and SIRI were related with the length of hospital stay (P<0.05). NLR, PLR, LMR, and SIRI were associated with functional outcome at discharge in AIS patients. NLR, LMR and SIRI were related to hospitalization days in patients with AIS.
- Research Article
- 10.2147/jir.s521080
- Jul 1, 2025
- Journal of inflammation research
The study aimed to evaluate the accuracy with which various nutritional and inflammatory indicators, including Neutrophil-to-Lymphocyte Ratio (NLR), Platelet-to-Lymphocyte Ratio (PLR), Systemic Immune-Inflammation Index (SII), Monocyte-to-Lymphocyte Ratio (MLR), Systemic Inflammatory Response Index (SIRI), and Prognostic Nutritional Index (PNI), can predict the severity of acute calculus cholecystitis. 109 cases of chronic calculus cholecystitis (CCC) and 130 cases of acute calculus cholecystitis (ACC), including 62 cases of acute simple cholecystitis (ASC), 35 cases of acute purulent cholecystitis (APC), and 33 cases of acute gangrenous cholecystitis (AGC), were encompassed in the retrospective cohort study. The patients' clinical information and inflammatory-immune markers were collected for analysis. The optimal cut-off values for NLR, SIRI, SII, MLR, PLR, and PNI in distinguishing ACC from CCC were determined to be 2.499, 0.964, 593.5, 0.230, 148.0, and 141.3, respectively. NLR > 2.499 demonstrated the highest predictive capability, with an AUC of 0.896. Multivariate analysis indicated that NLR > 2.499 (OR: 4.69, p = 0.006) was the dominant factor in differentiating ACC from CCC. The optimal cut-off values for SII, SIRI, MLR, NLR, PLR, and PNI in distinguishing ASC from APC were 1098, 2.092, 0.304, 4.082, 191.1, and 135.3, respectively. SII > 1098 exhibited the highest predictive capability, with an AUC of 0.73. The optimal cut-off values for NLR, SIRI, MLR, SII, and PLR in differentiating APC from AGC were 7.232, 4.773, 0.557, 2417, and 221.5, respectively. NLR > 7.232 demonstrated the highest predictive capability, with an AUC of 0.826. Systemic inflammatory index and nutritional marker can serve as valuable indicators for predicting acute calculus cholecystitis and its severity. An elevated systemic inflammatory index and a declining nutritional marker suggest an increased risk of severe cholecystitis, warranting prompt and appropriate interventions.
- Research Article
2
- 10.3760/cma.j.cn121094-20231010-00081
- May 20, 2024
- Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases
Objective: To analyze the comprehensive blood inflammation index of the patients with stage I pneumoconiosis complicated with pulmonary infection, and to explore its value in predicting the patients' disease. Methods: In September 2023, 83 patients with stage I pneumoconiosis who were treated in Tianjin Occupational Diseases Precaution and Therapeutic Hospital from November 2021 to August 2023 were selected and divided into non-infected group (56 cases) and infected group (27 cases) according to whether they were combined with lung infection. Workers with a history of dust exposure but diagnosed without pneumoconiosis during the same period were selected as the control group (65 cases) . By referring to medical records and collecting clinical data such as gender, age, occupational history, past medical history, hematology testing, the differences in the comprehensive blood inflammation indexes among the three groups were compared, ROC curve was drawn, and the relationship between comprehensive blood inflammation indexes and stage I pneumoconiosis and its combined lung infection was analyzed. Results: There were significtant differences in the number of neutrophils (N) , the number of lymphocytes (L) , the number of monocytes (M) , C-reactive protein (CRP) , the neutrophil to lymphocyte ratio (NLR) , the monocyte to lymphocyte ratio (MLR) , the platelet to lymphocyte ratio (PLR) , the systemic immune-inflammatory index (SII) , the systemic inflammation response index (SIRI) , the aggregate index of systemic inflammation (AISI) , the derived neutrophil to lymphocyte ratio (dNLR) , the neutrophil to lymphocyte and platelet ratio (NLPR) , and the C-reactive protein to lymphocyte ratio (CLR) (P<0.05) . Compared with the control group, MLR, SIRI and AISI in the non-infected group were significantly increased (P<0.05) . NLR, MLR, PLR, SII, SIRI, AISI, dNLR, NLPR, CLR were significantly increased (P<0.05) . Compared with the non-infected group, NLR, PLR, SII, SIRI, AISI, dNLR, NLPR and CLR were significantly increased in the infected group (P<0.05) . ROC analysis showed that NLR, MLR, PLR, SII, SIRI and AISI had a certain predictive capability for stage I pneumoconiosis (P<0.05) , among which MLR had the highest efficacy, with an AUC of 0.791 (95% CI: 0.710-0.873) , the cut-off value was 0.18, the sensitivity was 71.4%, and the specificity was 78.5%. NLR, MLR, PLR, SII, SIRI, AISI, dNLR, NLPR and CLR all had a certain predictive capability forstage I pneumoconiosis combined lung infection (P<0.05) , among which CLR had the highest efficacy, with an AUC of 0.904 (95%CI: 0.824~0.985) , the cut-off value was 5.33, sensitivity was 77.8%, specificity was 98.2%. Conclusion: The comprehensive blood inflammation index may be an auxiliary predictor of stage I pneumoconiosis and its combined lung infections.
- Research Article
- 10.1302/1358-992x.2024.19.037
- Nov 22, 2024
- Orthopaedic Proceedings
AimPeriprosthetic joint infection (PJI) is a devastating complication that develops after total joint arthroplasty (TJA) whose incidence is expected to increase over the years. Traditionally, surgical treatment of PJI has been based on algorithms, where early infections are preferably treated with debridement, antibiotics, and implant retention (DAIR), while late infections with two-stage revision surgery. Two-stage revision is considered the “gold standard” for treatment of chronic PJI. In this observational retrospective study, we investigated the potential role of inflammatory blood markers (neutrophil-to- lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), platelet-to-lymphocyte ratio (PLR), systemic inflammatory index (SII)], systemic inflammatory response index (SIRI), and aggregate index of systemic inflammation (AISI)) as prognostic factors in two-stage exchange arthroplasty for PJI.MethodA single-center retrospective analysis was conducted, collecting clinical data and laboratory parameters from patients submitted to prosthetic explantation for chronic PJI. Laboratory parameters (PCR, NLR, MLR, PLR, SIRI, SII and AISI) were evaluated at the explantation time, at 4, 6, 8 weeks after surgery and at reimplantation time. Correlation between laboratory parameters and surgery success was evaluated, defined as infection absence/resolution at the last follow upResults57 patients with PJI were evaluated (62% males; average age 70 years, SD 12.14). Fifty-three patients with chronic PJI were included. Nineteen patients completed the two-stage revision process. Among them, none showed signs of re-infection or persistence of infection at the last available follow up. The other twenty-three patients did not replant due to persistent infection: among them, some (the most) underwent spacer retention; others were submitted to Girdlestone technique or chronic suppressive antibiotic therapy. Of the patients who concluded the two-stage revision, the ones with high SIRI values (mean 3.08 SD 1.7, p-value 0.04) and MLR values (mean 0.4 SD 0.2, p-value 0.02) at the explantation time were associated with a higher probability of infection resolution. Moreover, higher variation of SIRI and PCR, also defined respectively delta-SIRI (mean −2.3 SD 1.8, p-value 0.03) and delta-PCR (mean −46 SD 35.7, p-value 0.03), were associated with favorable outcomesConclusionsThe results of our study suggest that, in patients with PJI undergoing two-stage, SIRI and MLR values and delta-SIRI and delta-PCR values could be predictive of favorable outcome. The evaluation of these laboratory indices, especially their determination at 4 weeks after removal, could therefore help to determine which patients could be successfully replanted and to identify the best time to replant.
- Research Article
4
- 10.15537/smj.2024.45.8.20240404
- Jul 28, 2024
- Saudi Medical Journal
Objectives:To uncover the predictive value of systemic immune-inflammatory index (SII) and systemic inflammatory response index (SIRI) on early pregnancy loss.Methods:A total of 535 individuals were enrolled in this retrospective analysis. The early pregnancy losses (EPL) group included patients between 18-35 years old who experienced EPL. The control group comprised healthy pregnant women who gave birth at ≥37 weeks.Results:The EPL group had significantly lower plateletcrit (p=0.04), platelet distribution width (PDW, p<0.0001), and RDW (p<0.0001) and higher monocyte (p<0.0001) and SIRI (p<0.0001) values than the control group. The hemoglobin, white blood cells, platelet count, neutrophil count, lymphocyte count, mean platelet volume, neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR), monocyte-to-lymphocyte ratio (MLR), and SII values were not significantly different between the EPL and control groups (p>0.05). The cut-off value for the SIRI that offers the best sensitivity/specificity balance was 1.48 (sensitivity of 63%; specificity of 63%) in the receiver operating characteristics curve. Among the inflammatory parameters for predicting EPL, PDW had highest specificity (84%), and RDW had the highest sensitivity (80%).Conclusion:This study provides compelling evidence that various inflammatory pathways may significantly contribute to EPL pathogenesis. Moreover, our findings suggest that SIRI could be a more effective marker than NLR, PLR, MLR, and SII in predicting EPL in an ongoing pregnancy, thereby potentially revolutionizing early pregnancy loss diagnostics.
- Research Article
- 10.2147/jir.s531272
- Jul 30, 2025
- Journal of Inflammation Research
IntroductionWe analyzed the correlation between systemic immune inflammatory index (SII), systemic inflammatory response index (SIRI), systemic inflammatory index (AISI), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), monocyte-to-lymphocyte ratio (MLR) and mortality in patients with bloodstream infection to determine their application potential in predicting the prognosis of bloodstream infection.MethodsWe calculated SII, SIRI, AISI, NLR, PLR, and MLR in 469 patients with bloodstream infections. Logistic regression modeling, generalized additive modeling (GAM), and smoothed curve fitting were used to investigate the correlation of SII and other inflammatory markers with mortality in patients with bloodstream infections. Area under the curve (AUC) of ROC was used to assess the predictive effect of SII and other inflammatory markers.ResultsLevels of SII, SIRI, AISI, NLR, PLR, and MLR were significantly higher in the mortality group of this study (P < 0.05). There were significant differences in gender, age, diabetes, cardiovascular disease, respiratory disease, NEUT and LUMPH between the survival group and the death group (p < 0.05). Smooth curve fitting and GAM showed that SII and NLR had a non-linear relationship with death. After adjustment, the breakpoints (K) were 1711 and 7.22, respectively (P < 0.05), and there was a positive correlation on both sides of the breakpoint. The comparison of AUC values showed that SII and NLR had higher accuracy in predicting the risk of death in patients with bloodstream infection.ConclusionStudies demonstrates that SII and NLR are more predictive of mortality risk in patients with bloodstream infections. Patients with diabetes, cardiovascular disease, or respiratory disease should be monitored regularly for SII and NLR indicators to reduce the risk of death.
- Research Article
4
- 10.3390/healthcare12090867
- Apr 23, 2024
- Healthcare
Periprosthetic joint infection (PJI) is a devastating complication that develops after total joint arthroplasty (TJA), whose incidence is expected to increase over the years. Traditionally, surgical treatment of PJI has been based on algorithms, where early infections are preferably treated with debridement, antibiotics, and implant retention (DAIR) and late infections with two-stage revision surgery. Two-stage revision is considered the "gold standard" for treatment of chronic prosthetic joint infection (PJI) as it enables local delivery of antibiotics, maintenance of limb-length and mobility, and easier reimplantation. Many studies have attempted to identify potential predicting factors for early diagnosis of PJI, but its management remains challenging. In this observational retrospective study, we investigated the potential role of inflammatory blood markers (neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), platelet-to-lymphocyte ratio (PLR), systemic inflammatory index (SII), systemic inflammatory response index (SIRI), and aggregate index of systemic inflammation (AISI)) as prognostic factors in two-stage exchange arthroplasty for PJI. A single-center retrospective analysis was conducted, collecting clinical data and laboratory parameters from patients submitted to prosthetic explantation (EP) for chronic PJI. Laboratory parameters (PCR, NLR, MLR, PLR, SIRI, SII, and AISI) were evaluated at the explantation time; at 4, 6, and 8 weeks after surgery; and at reimplantation time. The correlation between laboratory parameters and surgery success was evaluated and defined as infection absence/resolution at the last follow-up. A total of 57 patients with PJI were evaluated (62% males; average age 70 years, SD 12.14). Fifty-three patients with chronic PJI were included. Nine patients underwent DAIR revision surgery and chronic suppressive therapy; two patients died. Nineteen patients completed the two-stage revision process (prosthetic removal, spacer placement, and subsequent replanting). Among them, none showed signs of reinfection or persistence of infection at the last available follow-up. The other twenty-three patients did not replant due to persistent infection: among them, some (the most) underwent spacer retention; others (fewer in number) were submitted to resection arthroplasty and arthrodesis (Girdlestone technique) or chronic suppressive antibiotic therapy; the remaining were, over time, lost to follow-up. Of the patients who concluded the two-stage revision, the ones with high SIRI values (mean 3.08 SD 1.7 and p-value 0.04) and MLR values (mean 0.4 SD 0.2 and p-value 0.02) at the explantation time were associated with a higher probability of infection resolution. Moreover, higher variation in the SIRI and PCR, also defined, respectively, as delta-SIRI (mean -2.3 SD 1.8 and p-value 0.03) and delta-PCR (mean -46 SD 35.7 and p-value 0.03), were associated with favorable outcomes. The results of our study suggest that, in patients with PJI undergoing EP, the SIRI and MLR values and delta-SIRI and delta-PCR values could be predictive of a favorable outcome. The evaluation of these laboratory indices, especially their determination at 4 weeks after removal, could therefore help to determine which patients could be successfully replanted and to identify the best time to replant. More studies analyzing a wider cohort of patients with chronic PJI are needed to validate the promising results of this study.
- Research Article
1
- 10.1186/s43168-025-00404-3
- May 21, 2025
- The Egyptian Journal of Bronchology
Asthma, a chronic respiratory disease, is characterized by inflammation and narrowing of bronchi, affecting 300 million people worldwide. Cellular markers neutrophil-to-lymphocyte ratio (NLR), eosinophils-to-lymphocyte ratio (ELR), platelet-to-lymphocyte ratio (PLR), monocyte-to-lymphocyte ratio (MLR), systemic inflammatory index (SII), and systemic inflammatory response index (SIRI) reported individually in the assessment of asthma. However, there is no comprehensive approach using correlation between these multiple markers and oxidative stress (OS) in assessing severity of the condition. For the present hospital-based study, blood samples were collected from 200 individuals containing equal number of asthma patients (61% severe, 39% non-severe) and healthy volunteers. Samples were processed for serum MDA (sMDA) and complete blood picture; cell based ratios and indices were calculated (NLR, ELR, PLR, MLR, SII, and SIRI). We found higher values for all the parameters in the asthma patients over healthy controls (p < 0.05) and PLR, SII, and sMDA between severe and non-severe cases. Receiver operating characteristic (ROC) curve analysis showed good area under curve (AUC), specificity and sensitivity (ELR > PLR > SII > NLR) in patient and controls and in severe and non-severe cases (PLR > SII > NLR). Serum MDA exhibited correlation with all ratios and indices except ELR in patient group while no correlation in severe group. These results are suggestive of association of systemic cellular markers with OS in patients over controls. Heightened sMDA in severe cases appears to be independent of circulating cellular markers. As asthma is a progressive disease, understanding the severity requires longitudinal studies to develop novel inexpensive management strategies.
- Research Article
39
- 10.3390/medicina58101502
- Oct 21, 2022
- Medicina
Background and objectives: Deep vein thrombosis (DVT) is one of the most serious post-operative complications in the case of total knee arthroplasty (TKA). This study aims to verify the predictive role of inflammatory biomarkers [monocyte-to-lymphocyte ratio (MLR), neutrophil-to-lymphocyte ratio (NLR), platelets-to-lymphocyte ratio (PLR), systemic inflammatory index (SII), systemic inflammation response index (SIRI), and aggregate index of systemic inflammation (AISI)] in acute DVT following TKA. Materials and methods: The present study was designed as an observational, analytical, retrospective cohort study and included all patients over 18 years of age with surgical indications for TKA, admitted to the Department of Orthopedics, Regina Maria Health Network, Targu Mures, Romania, and the Department of Orthopedics, Humanitas MedLife Hospital, Cluj-Napoca, Romania between January 2017 and July 2022. The primary endpoint was the risk of acute DVT following the TKA, and the secondary endpoint was the length of hospital stay, and the outcomes were stratified for the baseline’s optimal MLR, NLR, PLR, SII, SIRI, and AISI cut-off value. Results: DVT patients were associated with higher age (p = 0.01), higher incidence of cardiac disease [arterial hypertension (p = 0.02), atrial fibrillation (p = 0.01)], malignancy (p = 0.005), as well as risk factors [smoking (p = 0.03) and obesity (p = 0.02)]. Multivariate analysis showed a high baseline value for all hematological ratios: MLR (OR: 11.06; p < 0.001), NLR (OR: 10.15; p < 0.001), PLR (OR: 12.31; p < 0.001), SII (OR: 18.87; p < 0.001), SIRI (OR: 10.86; p < 0.001), and AISI (OR: 14.05; p < 0.001) was an independent predictor of DVT after TKA for all recruited patients. Moreover, age above 70 (OR: 2.96; p = 0.007), AH (OR: 2.93; p = 0.02), AF (OR: 2.71; p = 0.01), malignancy (OR: 3.98; p = 0.002), obesity (OR: 2.34; p = 0.04), and tobacco (OR: 2.30; p = 0.04) were all independent predictors of DVT risk. Conclusions: Higher pre-operative hematological ratios MLR, NLR, PLR, SII, SIRI, and AISI values determined before operations strongly predict acute DVT following TKA. Moreover, age over 70, malignancy, cardiovascular disease, and risk factors such as obesity and tobacco were predictive risk factors for acute DVT.
- Research Article
28
- 10.3390/diagnostics12102379
- Sep 30, 2022
- Diagnostics (Basel, Switzerland)
Background: Numerous tools, including inflammatory biomarkers and lung injury severity scores, have been evaluated as predictors of thromboembolic events and the requirement for intensive therapy in COVID-19 patients. This study aims to verify the predictive role of inflammatory biomarkers [monocyte to lymphocyte ratio (MLR), neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR), systemic inflammatory index (SII), Systemic Inflammation Response Index (SIRI), and Aggregate Index of Systemic Inflammation (AISI)] and the CT Severity Score in acute limb ischemia (ALI) risk, intensive unit care (ICU) admission, and mortality in COVID-19 patients.; Methods: The present study was designed as an observational, analytical, retrospective cohort study and included all patients older than 18 years of age with a diagnosis of COVID-19 infection, confirmed through real time-polymerase chain reaction (RT-PCR), and admitted to the County Emergency Clinical Hospital of Targu-Mureș, Romania, and Modular Intensive Care Unit of UMFST “George Emil Palade” of Targu Mures, Romania between January 2020 and December 2021. Results: Non-Survivors and “ALI” patients were associated with higher incidence of cardiovascular disease [atrial fibrillation (AF) p = 0.0006 and p = 0.0001; peripheral arterial disease (PAD) p = 0.006 and p < 0.0001], and higher pulmonary parenchyma involvement (p < 0.0001). Multivariate analysis showed a high baseline value for MLR, NLR, PLR, SII, SIRI, AISI, and the CT Severity Score independent predictor of adverse outcomes for all recruited patients (all p < 0.0001). Moreover, the presence of AF and PAD was an independent predictor of ALI risk and mortality. Conclusions: According to our findings, higher MLR, NLR, PLR, SII, SIRI, AISI, and CT Severity Score values at admission strongly predict ALI risk, ICU admission, and mortality. Moreover, patients with AF and PAD had highly predicted ALI risk and mortality but no ICU admission.
- Research Article
- 10.3389/fmed.2025.1538710
- Jun 10, 2025
- Frontiers in medicine
We investigated the relationship between inflammatory indicators derived from complete blood cell (CBC) counts and all-cause mortality in individuals with rheumatoid arthritis (RA). Data were collected from the National Health and Nutrition Examination Survey (NHANES) database from 2007 to 2018, with a median follow-up duration of 78 months. The inflammatory indicators derived from CBC included several types: the systemic inflammatory response index (SIRI), the systemic immune-inflammation index (SII), the neutrophil-to-lymphocyte ratio (NLR), the platelet-to-lymphocyte ratio (PLR), and the monocyte-to-lymphocyte ratio (MLR). The multiple COX regression models were used to estimate adjusted hazard ratios (HRs) and 95% CIs concerning all-cause mortality of participants with RA, which focused on CBC-derived inflammatory indicators. Additionally, restricted cubic spline (RCS) curve was utilized to investigate non-linear associations. The research comprised a cohort of 1,314 individuals, among whom 246 with RA succumbed during a median follow-up duration of 78 months. After adjusting for key covariates, the mortality rate in patients with RA who had high SIRI, NLR, and MLR levels was considerably higher than in those with medium or low SIRI, NLR, and MLR levels. Compared with the lowest tertile, the highest tertiles of SIRI (HR 1.87, 95% CI: 1.12-3.13), NLR (HR 1.79, 95% CI: 1.10-2.92), and MLR (HR 1.88, 95% CI: 1.17-3.02) were associated with an increased risk of all-cause mortality. The Kaplan-Meier analysis indicated a significant decrease in the survival probability among individuals with elevated SIRI, NLR, and MLR levels. The RCS analysis revealed a linear association between SIRI, NLR, MLR, and RA-related all-cause mortality, whereas a non-linear relationship was identified between the SII, PLR, and mortality. This investigation revealed that the SIRI, NLR, and MLR are novel, valuable, and convenient inflammatory indicators. In the United States adults with RA, higher SIRI, NLR, and MLR were independently associated with an increased long-term mortality risk. These findings not only assist in uncovering the potential utility of predicting RA outcomes but also provide rheumatologists valuable guidance for disease management.
- Research Article
- 10.2147/idr.s543622
- Sep 13, 2025
- Infection and Drug Resistance
ObjectiveThis investigation intends to clarify the disparities in hematological parameters and ratios among different age groups,providing new insights for the diagnostic of Mycobacterium Avium Complex Pulmonary Disease (MAC-PD).Patients and MethodsA retrospective investigation was undertaken to examine the hematological parameters of elderly (n=88) and non-elderly (n=44) patients diagnosed with MAC-PD at Hebei Chest Hospital between 2020 and 2024. The study involved the calculation of the neutrophil-to-lymphocyte ratio (NLR), lymphocyte-to-monocyte ratio (LMR), platelet-to-lymphocyte ratio (PLR), hemoglobin-to-lymphocyte ratio (HLR),hemoglobin-to-platelet ratio (HPR),systemic inflammatory response index (SIRI) and systemic immune-inflammation index (SII). Statistical analyses were executed utilizing SPSS 27.0 and R (4.2.1) software.ResultsThe levels of absolute lymphocyte count (ALC),hemoglobin (Hb) and LMR were lower in Elderly MAC group compared to Non-elderly MAC group. Conversely,the levels of NLR, PLR,HLR,SIRI and SII were higher in Elderly MAC group than in Non-elderly MAC group. There was a certain correlation between the Ct value of MAC nucleic acid and NLR, LMR, SIRI and SII (P<0.05) in Elderly MAC group. In Non-elderly MAC group, the Ct value of MAC nucleic acid was correlated with absolute neutrophil count (ANC), LMR, SIRI and SII (P<0.05). Receiver operating characteristic curve (ROC) analysis indicated that NLR, LMR, SIRI and SII exhibited high diagnostic value in Elderly MAC group,while LMR, SIRI and SII demonstrated high diagnostic value in Non-elderly MAC group. The combined diagnostic value was even more prominent. Nevertheless,no significant diagnostic indicators were identified between Elderly MAC group and Non-elderly MAC group.ConclusionThe combination of NLR, LMR, SIRI and SII may serve as diagnostic markers for Elderly MAC-PD and the combination of LMR, SIRI and SII may serve as diagnostic markers for Non-lderly MAC-PD. But there were no significant diagnostic indicators differentiating Elderly MAC group from Non-elderly MAC group.
- Research Article
43
- 10.1155/2021/2939162
- Sep 8, 2021
- Journal of Oncology
Introduction Stage IIB cervical cancer (CC) is an advanced stage CC with poor prognosis. Inflammatory response plays a crucial role in the development of CC, and systemic inflammatory indexes were related to the prognosis in several cancers. The objective of the study was to determine the prognostic value of platelet-to-lymphocyte ratio (PLR), neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), basophil-to-lymphocyte ratio (BLR), and systemic inflammation response index (SIRI) as inflammatory indexes in patients with stage IIB CC. Materials and Methods A retrospective study was performed in 260 patients with stage IIB CC. PLR, NLR, MLR, BLR, and SIRI were obtained from routine blood tests. Prognosis information of the patients was acquired from regular clinical follow-up. Recurrence and response to therapy were determined through electronic medical records (EMRs). Correlations of the inflammatory indexes with overall survival (OS), progression-free survival (PFS), recurrence, and response to therapy were analyzed using SPSS version 26.0 software. Results Receiver operating characteristic (ROC) curve analyses suggested that NLR, MLR, and SIRI had better predictive value than PLR as well as BLR in the prognosis and recurrence risk. Both univariate and multivariate survival analyses showed that higher NLR and MLR were significantly associated with shorter OS as well as PFS, whereas SIRI was not an independent predictive factor of PFS. Chi-square test results revealed that increased NLR was significantly correlated with higher recurrence rate (P=0.046), and increased MLR showed significant correlation with elevated recurrence risk (P=0.002). Univariate and binary logistic regression analyses for response to therapy indicated that elevated NLR was associated with decreased complete remission (CR) rate (P=0.031), and the P value lost statistical significance while being adjusted by tumor size (P=0.108). Conclusions For patients with stage IIB CC, both NLR and MLR are independent prognostic factors as well as risk factors for recurrence; NLR serves as a potential marker for therapeutic response.
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