Inflammasome Mediators Predict Disease Severity and Mortality in Patients with Sepsis and Acute Respiratory Distress Syndrome.

Author(s):  
T Dolinay ◽  
RM Baron ◽  
L Fredenburgh ◽  
AF Massaro ◽  
R Lanazury ◽  
...  
2021 ◽  
Vol 15 (6) ◽  
pp. 401-412
Author(s):  
Yijue Liu ◽  
Huan Peng ◽  
Feng Gui

Aim: We aimed to investigate the association of long noncoding RNA plasmacytoma variant translocation 1 (lncRNA PVT1) expression with acute respiratory distress syndrome (ARDS) risk and its prognostic value for 28-day mortality in sepsis patients. Materials & methods: LncRNA PVT1 expression from 109 sepsis patients and 100 health controls was detected. General sepsis severity was assessed using acute physiology and chronic health evaluation II score and sequential organ failure assessment score. Results: LncRNA PVT1 had an acceptable predictive value for higher ARDS risk, then was identified as an independent risk factor for sepsis ARDS; LncRNA PVT1 expression positively correlated with general disease severity in sepsis patients; LncRNA PVT1 was overexpressed in 28-day deaths compared with 28-day survivors in sepsis patients. Conclusion: LncRNA PVT1 may facilitate the surveillance of ARDS, general disease severity and the prediction of mortality in sepsis patients.


Author(s):  
Christian Mueller ◽  
Evangelos Giannitsis ◽  
Allan S Jaffe ◽  
Kurt Huber ◽  
Johannes Mair ◽  
...  

Abstract The coronavirus disease 2019 (COVID-19) pandemic has increased awareness that severe acute respiratory distress syndrome coronavirus-2 (SARS-CoV-2) may have profound effects on the cardiovascular system. COVID-19 often affects patients with pre-existing cardiac disease, and may trigger acute respiratory distress syndrome (ARDS), venous thromboembolism (VTE), acute myocardial infarction (AMI), and acute heart failure (AHF). However, as COVID-19 is primarily a respiratory infectious disease, there remain substantial uncertainty and controversy whether and how cardiovascular biomarkers should be used in patients with suspected COVID-19. To help clinicians understand the possible value as well as the most appropriate interpretation of cardiovascular biomarkers in COVID-19, it is important to highlight that recent findings regarding the prognostic role of cardiovascular biomarkers in patients hospitalized with COVID-19 are similar to those obtained in studies for pneumonia and ARDS in general. Cardiovascular biomarkers reflecting pathophysiological processes involved in COVID-19/pneumonia and its complications have a role evaluating disease severity, cardiac involvement, and risk of death in COVID-19 as well as in pneumonias caused by other pathogens. First, cardiomyocyte injury, as quantified by cardiac troponin concentrations, and haemodynamic cardiac stress, as quantified by natriuretic peptide concentrations, may occur in COVID-19 as in other pneumonias. The level of those biomarkers correlates with disease severity and mortality. Interpretation of cardiac troponin and natriuretic peptide concentrations as quantitative variables may aid in risk stratification in COVID-19/pneumonia and also will ensure that these biomarkers maintain high diagnostic accuracy for AMI and AHF. Second, activated coagulation as quantified by D-dimers seems more prominent in COVID-19 as in other pneumonias. Due to the central role of endothelitis and VTE in COVID-19, serial measurements of D-dimers may help physicians in the selection of patients for VTE imaging and the intensification of the level of anticoagulation from prophylactic to slightly higher or even therapeutic doses.


2021 ◽  
Author(s):  
Rahul Y Mahida ◽  
Joshua Price ◽  
Sebastian T. Lugg ◽  
Hui Li ◽  
Dhruv Parekh ◽  
...  

Recent studies have indicated that extracellular vesicles (EV) may play a role in the pathogenesis of Acute Respiratory Distress Syndrome (ARDS). EV have been identified as potential biomarkers of disease severity and prognosis in other pulmonary diseases. We sought to characterize the EV phenotype within ARDS patient broncho-alveolar lavage fluid (BAL), and to determine whether BAL EV could be utilized as a potential biomarker in ARDS. EV from the BAL of sepsis patients with ARDS, sepsis patients without ARDS, and post-operative control patients were characterized with regards to size, number and cell of origin. ARDS patients had significantly higher numbers of CD14+/CD81+ monocyte-derived BAL EV than sepsis patients without ARDS (p=0.022). CD14+/CD81+ BAL EV numbers were significantly higher in those ARDS patients who died during the 30 days following ICU admission (p=0.027). Also, across all sepsis patients there was an association between CD66b+/CD63+ neutrophil-derived BAL EV and increased BAL IL-8 concentration, increased alveolar neutrophil apoptosis and decreased alveolar macrophage efferocytosis. Thus, CD14+/CD81+ BAL EV are a potential biomarker for disease severity and mortality in ARDS. These findings provide the impetus to further elucidate the contribution of these EV to ARDS pathogenesis.


2020 ◽  
Vol 14 ◽  
pp. 175346662093687
Author(s):  
Li-Chung Chiu ◽  
Shih-Wei Lin ◽  
Pi-Hua Liu ◽  
Li-Pang Chuang ◽  
Chih-Hao Chang ◽  
...  

Background: Disease severity may change in the first week after acute respiratory distress syndrome (ARDS) onset. The aim of this study was to evaluate whether the reclassification of disease severity after 48 h (i.e. day 3) of ARDS onset could help in predicting mortality and determine factors associated with ARDS persistence and mortality. Methods: We performed a secondary analysis of a 3-year prospective, observational cohort study of ARDS in a tertiary care referral center. Disease severity was reclassified after 48 h of enrollment, and cases that still fulfilled the Berlin criteria were regarded as nonresolving ARDS. Results: A total of 1034 ARDS patients were analyzed. Overall hospital mortality was 57.7% (56.7%, 57.5%, and 58.6% for patients with initial mild, moderate, and severe ARDS, respectively, p = 0.189). On day 3 reclassification, the hospital mortality rates were as follows: resolved (42.1%), mild (47.9%), moderate (62.4%), and severe ARDS (76.1%) ( p < 0.001). Patients with improving severity on day 3 had lower mortality (48.8%), whereas patients with the same or worsening severity on day 3 had higher mortality (62.7% and 76.3%, respectively). Patients who were older, had lower PaO2/FiO2, or higher positive end-expiratory pressure on day 1 were significantly associated with nonresolving ARDS on day 3. A Cox regression model with ARDS severity as a time-dependent covariate and competing risk analysis demonstrated that ARDS severity was independently associated with hospital mortality, and nonresolving ARDS had significantly increased hazard of death than resolved ARDS ( p < 0.0001). Cumulative mortality curve for ARDS severity comparisons demonstrated significantly different (overall comparison, p < 0.001). Conclusions: Reclassification of disease severity after 48 h of ARDS onset could help to divide patients into subgroups with greater separation in terms of mortality. The reviews of this paper are available via the supplemental material section.


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