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The Prognostic Value of Inflammatory Indices in Acute Pulmonary Embolism

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Specialty Radiology
Date 2025 Feb 13
PMID 39941242
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Abstract

Acute pulmonary embolism (PE) is a condition with increased morbidity and mortality. It is important to identify patients with high mortality risk. Inflammation and thrombosis are interconnected in the pathophysiology of PE. The aim of the study was to investigate the prognostic value of multiple blood cellular indices such as neutrophil-to-lymphocyte ratio (NLR), lymphocyte-to-monocyte ratio (LMR), platelet-to-lymphocyte ratio (PLR), neutrophil-to-lymphocyte platelet ratio (NLPR), systemic immune-inflammation index (SII), systemic inflammation response index (SIRI) and aggregate index of systemic inflammation (AISI) in acute PE. : A total of 157 patients with acute PE confirmed by chest computed tomographic angiography (CTPA) were enrolled. These patients were divided into two categories according to the simplified pulmonary embolism severity index (sPESI): high risk and low risk. : Univariate logistic regression analysis showed that right ventricle dysfunction, NLR, SII and SIRI were significantly associated with high risk of acute PE. NLR of 4.32 was associated with high-risk PE with a sensitivity of 57.4% and specificity of 65.7% (AUC = 0.635). SII of 1086.55 was associated with high-risk PE with a sensitivity of 55.7% and specificity of 71.4% (AUC = 0.614). SIRI of 2.87 was associated with high-risk PE with a sensitivity of 59% and specificity of 62.9% (AUC = 0.624). Multivariate logistic regression analysis demonstrated that right ventricle dysfunction, NLR, PLR and NLPR are independent predictors of high-risk acute PE. Secondly, NLR, NLPR, SII and SIRI were significantly correlated with in-hospital mortality of acute PE. Based on receiver-operating characteristic (ROC) curve values of 7.66 for NLR (AUC 0.911, sensitivity of 85.7% and sensibility of 83%), 0.02 for NLPR (AUC 0.871, sensitivity of 85.7% and sensibility of 70%), 1542.71 for SII (AUC 0.782, sensitivity of 71.4% and sensibility of 72%) and 5.72 for SIRI (AUC 0.788, sensitivity of 71.4% and sensibility of 73%) could predict in-hospital mortality. : The blood cellular indices (NLR, NLPR, SII and SIRI) are associated with high-risk acute PE and in-hospital mortality. Right ventricular dysfunction, NLR and NLPR are independent predictors for high-risk acute PE.

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