Prognostic Value of Neutrophil/Lymphocyte Ratio for Pulmonary Embolism: A Meta-Analysis and External Validation.
Ann Vasc Surg
; 105: 48-59, 2024 Aug.
Article
em En
| MEDLINE
| ID: mdl-38582200
ABSTRACT
BACKGROUND:
Prognostic value of neutrophil/lymphocyte ratio (NLR) for pulmonary embolism (PE) has been reported in several retrospective studies. The purpose of this investigation was to perform a pooled analysis and external validation of predictive value of NLR.METHODS:
PubMed, Embase, and Cochrane databases were searched from inception to November 5, 2022. A random effects model was used. Grade was used to evaluate the certainty of evidence. External validation was conducted in clinical cohorts before and after a propensity scoring matching (PSM). Covariates include basic clinical characteristics, such as age, gender, etc. The value of NLR in prediction model was also evaluated.RESULTS:
A total of 15 studies comprising 5,874 patients were included. Pooled risk ratio of NLR was 2.33 (95% confidence interval [CI] 1.97-2.75), with an area under the curve of 0.78 (95% CI 0.74-0.81), a sensitivity of 0.75 (95% CI 0.71-0.79), a specificity of 0.67 (95% CI 0.61-0.73), and a median cut-off value of 5.7. Grade of Recommendations Assessment Development and Evaluation (GRADE) certainty analysis showed the quality of the evidence was moderate. Before (n = 336) and after (n = 152) propensity scoring matching, risk ratio of NLR was 2.69 (95% CI 1.04-6.97) and 6.58 (95% CI 1.99-17.75). A prediction model consisting of NLR, age, D-dimer, and simplified PE severity index had an area under the curve of 0.809 (95% CI 0.738-0.88), a sensitivity of 0.638 (95% CI 0.511-0.745), and a specificity of 0.851 (95% CI 0.709-0.917). Net reclassification index (12%, P = 0.035) and integrated discrimination improvement (17%, P = 0.022) indicated an improvement caused by NLR.CONCLUSIONS:
Prognostic value of NLR for PE was confirmed by meta-analysis and validated in an independent cohort, deserving further clinical application.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Embolia Pulmonar
/
Linfócitos
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Valor Preditivo dos Testes
/
Neutrófilos
Limite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Ann Vasc Surg
Assunto da revista:
ANGIOLOGIA
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China