scholarly journals Neutrophil-to-lymphocyte ratio associated with an increased risk of mortality in patients with critical limb ischemia

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0252030
Author(s):  
Min-I. Su ◽  
Cheng-Wei Liu
Keyword(s):  
Hospital Mortality ◽  
Critical Limb Ischemia ◽  
Limb Ischemia ◽  
Neutrophil To Lymphocyte Ratio ◽  
Major Adverse Cardiovascular Events ◽  
Acute Limb Ischemia ◽  
Male Body ◽  
Lymphocyte Ratio ◽  
Increased Risk ◽  
Related Mortality

Purpose Association of the neutrophil-to-lymphocyte ratio (NLR) with mortality has not been comprehensively explored in critical limb ischemia (CLI) patients. We investigated the association between the NLR and clinical outcomes in CLI. Materials and methods We retrospectively enrolled consecutive CLI patients between 1/1/2013 and 12/31/2018. Receiver operating characteristic curve analysis determined NLR cutoffs for 1-year in-hospital, all-cause and cardiac-related mortality; major adverse cardiovascular events (MACEs); and major adverse limb events (MALEs). Results Among 195 patients (age, 74.0 years, SD: 11.5; 51.8% male; body mass index, 23.4 kg/m2, SD: 4.2), 14.4% exhibited acute limb ischemia. After 1 year, patients with NLR>8 had higher in-hospital mortality (21.1% vs. 3.6%, P<0.001), all-cause mortality (54.4% vs. 13.8%, P<0.001), cardiac-related mortality (28.1% vs. 6.5%, P<0.001), MACE (29.8% vs. 13.0%, P = 0.008), and MALE (28.1% vs. 13.0%, P = 0.021) rates than those with NLR<8. In multivariate logistic regression, NLR≥8 was significantly associated with all-cause (P<0.001) and cardiac-related (adjusted HR: 5.286, 95% CI: 2.075–13.47, P<0.001) mortality, and NLR≥6 was significantly associated with MALEs (adjusted HR: 2.804, 95% CI: 1.292–6.088, P = 0.009). Each increase in the NLR was associated with increases in all-cause (adjusted HR: 1.028, 95% CI: 1.008–1.049, P = 0.007) and cardiac-related (adjusted HR:1.027, 95% CI: 0.998–1.057, P = 0.073) mortality but not in-hospital mortality or MACEs. Conclusion CLI patients with high NLRs had significantly higher risks of 1-year all-cause and cardiac-related mortality and MALEs. The NLR can be used for prognostic prediction in these patients.

scholarly journals Neutrophil-to-lymphocyte Ratio Associated With an Increased Risk of Mortality in Patients With Critical Limb Ischemia

2021 ◽  
Author(s):  
Min-I Su ◽  
Cheng-Wei Liu
Keyword(s):  
Critical Limb Ischemia ◽  
Characteristic Curve ◽  
Limb Ischemia ◽  
Neutrophil To Lymphocyte Ratio ◽  
Major Adverse Cardiovascular Events ◽  
Acute Limb Ischemia ◽  
Lymphocyte Ratio ◽  
Increased Risk ◽  
Prognostic Prediction ◽  
Related Mortality

Abstract Purpose: Association of the neutrophil-to-lymphocyte ratio (NLR) with mortality has not been comprehensively explored in critical limb ischemia (CLI) patients. We investigated the association between the NLR and clinical outcomes in CLI.Materials and methods: We retrospectively enrolled consecutive CLI patients during 1/1/2013–12/31/2018. Receiver operating characteristic curve analysis determined NLR cutoffs for 1-year in-hospital, all-cause and cardiac-related mortality, and major adverse cardiovascular events (MACEs) and limb events (MALEs).Results: Among 195 patients (age, 74.0 years, SD: 11.5; 51.8% male; BMI, 23.4 kg/m2, SD: 4.2), 14.4% exhibited acute limb ischemia. After 1 year, patients with an NLR>8 had higher in-hospital mortality (21.1% vs. 3.6%, P<0.001), all-cause mortality (54.4% vs. 13.8%, P<0.001), cardiac-related mortality (28.1% vs. 6.5%, P<0.001), MACE (29.8% vs. 13.0%, P=0.008), and MALE (28.1% vs. 13.0%, P=0.021) rates than those with an NLR<8. In multivariate logistic regression, an NLR≥8 was significantly associated with all-cause (P<0.001) and cardiac-related (adjusted HR: 5.286, 95% CI: 2.075-13.47, P<0.001) mortality, and an NLR≥6 was significantly associated with MALEs (adjusted HR: 2.804, 95% CI: 1.292-6.088, P=0.009).Conclusion: CLI patients with high NLRs had higher risks of 1-year all-cause and cardiac-related mortality and MALEs. The NLR can be used for prognostic prediction in these patients.

scholarly journals Neutrophil-to-Lymphocyte Ratio Could Predict Outcome in Patients Presenting with Acute Limb Ischemia

2021 ◽  
Vol 10 (19) ◽  
pp. 4343
Author(s):  
Maurizio Taurino ◽  
Francesco Aloisi ◽  
Flavia Del Porto ◽  
Martina Nespola ◽  
Tommaso Dezi ◽  
...  
Keyword(s):  
Univariate Analysis ◽  
Final Analysis ◽  
Limb Ischemia ◽  
Neutrophil To Lymphocyte Ratio ◽  
Acute Limb Ischemia ◽  
Mortality And Morbidity ◽  
Lymphocyte Ratio ◽  
Unselected Population ◽  
Event Rates

Introduction: Acute limb ischemia (ALI), classified according to Rutherford’s classification (RC), is a vascular emergency burdened by high rates of mortality and morbidity. The need of new and different prognostic values for ALI has emerged, and, among all, the neutrophil-to-lymphocyte ratio (NLR) has been proven as a strong outcome predictor in vascular disease. The aim of this study is to investigate the role of preoperative NLR in predicting clinical outcomes in patients presenting acute limb ischemia. Material and Methods: A single-center retrospective study was conducted between January 2015 and December 2019. Demographic and clinical characteristics, procedural technical aspects, postoperative and early (up to 30-day) outcomes were recorded. All enrolled patients were categorized into low- and high-NLR at baseline, using a cut-off value of 5. Study outcomes were 30-day all-cause mortality and amputation rates. Results: A total of 177 ALI patients were included in the final analysis (6 RC I, 44 RC IIA, 108 RC IIB, and 19 RC III), 115 males (65%), mean age 78.9 ± 10.4 years. Mean NLR at hospital presentation was 6.65 ± 6.75 (range 0.5–35.4), 108 (61.1%) patients presented a low-NLR, 69 (38.9%) a high-NLR. Immediate technical success was achieved in 90.1% of cases. At 30 days, freedom from amputation and freedom from death rates were 87.1% and 83.6%, respectively. At the univariate analysis, amputation (p < 0.0001, OR: 9.65, 95%CI: 3.7–25.19), mortality (p = 0.0001, OR: 9.88, 95%CI: 3.19–30.57), and cumulative event rates (p < 0.001, OR: 14.45, 95%CI: 6.1–34.21), were significantly different between the two groups according to NLR value. Multivariate analysis showed that a high baseline NLR value was an independent predictor of unfavorable outcomes in all enrolled patients. Consistently, at ROC analysis, a preoperative NLR > 5 was strongly associated with all outcome occurrences. Conclusion: Preoperative NLR value seems to be strongly related to ALI outcomes in this unselected population. The largest series should be evaluated to confirm present results.

Abstract 728: The Neutrophil-to-lymphocyte Ratio is Associated With Amputation Free Survival in Critical Limb Ischemia

2018 ◽  
Vol 38 (Suppl_1) ◽  
Author(s):  
Femke C van Rhijn-Brouwer ◽  
Hendrik Gremmels ◽  
Ian D van Koeverden ◽  
Martin Teraa ◽  
Gerard Pasterkamp ◽  
...  
Keyword(s):  
Critical Limb Ischemia ◽  
Limb Ischemia ◽  
Neutrophil To Lymphocyte Ratio ◽  
Free Survival ◽  
Lymphocyte Ratio

scholarly journals Neutrophil-to-Lymphocyte Ratio and Its Association with Critical Limb Ischemia in PAOD Patients

PLoS ONE ◽  
2013 ◽  
Vol 8 (2) ◽  
pp. e56745 ◽  
Author(s):  
Thomas Gary ◽  
Martin Pichler ◽  
Klara Belaj ◽  
Franz Hafner ◽  
Armin Gerger ◽  
...  
Keyword(s):  
Critical Limb Ischemia ◽  
Limb Ischemia ◽  
Neutrophil To Lymphocyte Ratio ◽  
Lymphocyte Ratio

scholarly journals The Neutrophil-to-Lymphocyte Ratio is a Prognostic Biomarker of Amputation and Mortality Among Patients Suffering an Acute Limb Ischemia Event

2019 ◽  
Vol 58 (6) ◽  
pp. e576
Author(s):  
Carlos Ruiz Carmona ◽  
Alina Velescu ◽  
Andrés Galarza Tapia ◽  
Eduard Casajuana Urgell ◽  
Lidia Marcos García ◽  
...  
Keyword(s):  
Prognostic Biomarker ◽  
Limb Ischemia ◽  
Neutrophil To Lymphocyte Ratio ◽  
Acute Limb Ischemia ◽  
Lymphocyte Ratio

scholarly journals Non-compressible ABIs are associated with an increased risk of major amputation and major adverse cardiovascular events in patients with critical limb ischemia

2017 ◽  
Vol 22 (3) ◽  
pp. 210-217 ◽  
Author(s):  
Gagan D Singh ◽  
Ehrin J Armstrong ◽  
Stephen W Waldo ◽  
Bejan Alvandi ◽  
Ellen Brinza ◽  
...  
Keyword(s):  
Clinical Outcomes ◽  
Critical Limb Ischemia ◽  
Cardiovascular Events ◽  
Limb Ischemia ◽  
Major Amputation ◽  
Tissue Loss ◽  
Major Adverse Cardiovascular Events ◽  
Increased Risk ◽  
Artery Disease ◽  
Stage Renal Disease

Ankle–brachial indices (ABIs) are important for the assessment of disease burden among patients with peripheral artery disease. Although low values have been associated with adverse clinical outcomes, the association between non-compressible ABI (ncABI) and clinical outcome has not been evaluated among patients with critical limb ischemia (CLI). The present study sought to compare the clinical characteristics, angiographic findings and clinical outcomes of those with compressible (cABI) and ncABI among patients with CLI. Consecutive patients undergoing endovascular evaluation for CLI between 2006 and 2013 were included in a single center cohort. Major adverse cardiovascular events (MACE) were then compared between the two groups. Among 284 patients with CLI, 68 (24%) had ncABIs. These patients were more likely to have coronary artery disease ( p=0.003), diabetes ( p<0.001), end-stage renal disease ( p<0.001) and tissue loss ( p=0.01) when compared to patients with cABI. Rates of infrapopliteal disease were similar between the two groups ( p=0.10), though patients with ncABI had lower rates of iliac ( p=0.004) or femoropopliteal stenosis ( p=0.003). Infrapopliteal vessels had smaller diameters ( p=0.01) with longer lesions ( p=0.05) among patients with ncABIs. After 3 years of follow-up, ncABIs were associated with increased rates of mortality (HR 1.75, 95% CI: 1.12–2.78), MACE (HR 2.04, 95% CI: 1.35–3.03) and major amputation (HR 1.96, 95% CI: 1.11–3.45) when compared to patients with cABIs. In conclusion, ncABIs are associated with higher rates of mortality and adverse events among those undergoing endovascular therapy for CLI.

Impact of Baseline Neutrophil-to-Lymphocyte Ratio on Long-Term Prognosis in Patients With Atrial Fibrillation

Angiology ◽  
2021 ◽  
pp. 000331972110004
Author(s):  
Shuang Wu ◽  
Yan-min Yang ◽  
Jun Zhu ◽  
Jia-meng Ren ◽  
Juan Wang ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Continuous Variable ◽  
Cox Proportional Hazards ◽  
Neutrophil To Lymphocyte Ratio ◽  
Long Term Outcomes ◽  
Lymphocyte Ratio ◽  
Net Reclassification Improvement ◽  
Increased Risk ◽  
All Cause Mortality

We performed a retrospective analysis involving 1269 patients with atrial fibrillation (AF) to evaluate the predictive value of the neutrophil-to-lymphocyte ratio (NLR) on long-term outcomes. The primary outcomes were all-cause mortality and combined end point events (CEEs). Cox proportional hazards regression analysis and net reclassification improvement (NRI) analysis were performed. During a median follow-up of 3.32 years, 285 deaths and 376 CEEs occurred. With the elevation of the NLR, the incidence of all-cause mortality (2.77, 4.14, 6.12, and 12.18/100 person-years) and CEEs (4.19, 7.40, 8.03, and 15.22/100 person-years) significantly increased. Multivariate Cox analysis indicated that the highest NLR quartile was independently associated with the incidence of all-cause mortality (hazard ratio [HR] = 1.77, 95% CI: 1.19-2.65) and CEEs (HR = 1.66, 95% CI: 1.18-2.33). When the NLR was analyzed as a continuous variable, a 1-unit increment in log NLR was related to 134% increased risk of all-cause mortality and 119% increased risk of CEEs. Net reclassification improvement analysis revealed that NLR significantly improved risk stratification for all-cause death and CEEs by 15.0% and 9.6%, respectively. Neutrophil-to-lymphocyte ratio could be an independent predictor of long-term outcomes in patients with AF.

scholarly journals Prognostic value of the neutrophil-to-lymphocyte ratio in acute organophosphorus pesticide poisoning

2021 ◽  
Vol 16 (1) ◽  
pp. 703-710
Author(s):  
Yuhang Mu ◽  
Boqi Hu ◽  
Nan Gao ◽  
Li Pang
Keyword(s):  
Logistic Regression ◽  
Regression Analysis ◽  
Hospital Mortality ◽  
Logistic Regression Analysis ◽  
Poor Prognosis ◽  
Prognostic Value ◽  
Organophosphorus Pesticide ◽  
Neutrophil To Lymphocyte Ratio ◽  
Pesticide Poisoning ◽  
Lymphocyte Ratio

Abstract This study investigates the ability of blood neutrophil-to-lymphocyte ratio (NLR) to predict acute organophosphorus pesticide poisoning (AOPP). Clinical data of 385 patients with AOPP were obtained within 24 h of admission, and NLR values were calculated based on neutrophil and lymphocyte counts. The patients were divided into two groups – good and poor – based on prognosis. Poor prognosis included in-hospital death and severe poisoning. The factors affecting prognosis were analyzed by logistic regression analysis, and the prognostic value of NLR was evaluated using the area under the receiver operating characteristic curve (AUC). Univariate logistic regression analysis showed that NLR levels, serum cholinesterase, and creatinine levels were good predictors of AOPP. Multivariate logistic regression analysis showed that high NLR was an independent risk factor for severe poisoning (adjusted odds ratio [AOR], 1.13; 95% CI, 1.10–1.17; p < 0.05) and in-hospital mortality (AOR, 1.07; 95% CI, 1.03–1.11; p < 0.05). NLR values >13 and >17 had a moderate ability to predict severe poisoning and in-hospital mortality, respectively (AUC of 0.782 [95% CI, 0.74–0.824] and 0.714 [95% CI, 0.626–0.803], respectively). Our results show that high NLR at admission is an independent indicator of poor prognosis in AOPP and can be used to optimize treatment and manage patients.

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