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Cytokines and Chemokines Are Detectable in Swivel-Derived Exhaled Breath Condensate (SEBC): A Pilot Study in Mechanically Ventilated Patients.

细胞因子和趋化因子在旋转衍生呼出气冷凝液 (SEBC) 中可检测到: 机械通气患者的初步研究。

  • 影响因子:2.64
  • DOI:10.1155/2020/2696317
  • 作者列表:"van der Zee P","van Walree I","Fijen JW","van Houte AJ","van Velzen-Blad H","Rijkers G","Gommers D","Endeman H
  • 发表时间:2020-01-11
Abstract

:Introduction. Exhaled breath condensate (EBC) is a noninvasive method to collect samples from the respiratory tract. Usually, a thermoelectric cooling module is required to collect sufficient EBC volume for analyses. In here, we assessed the feasibility of cytokine and chemokine detection in EBC collected directly from the ventilator circuit without the use of a cooling module: swivel-derived exhaled breath condensate (SEBC). Methods:SEBC was prospectively collected from the swivel adapter and stored at -80°C. The objective of this study was to detect cytokines and chemokines in SEBC with a multiplex immunoassay. Secondary outcomes were to assess the correlation between cytokine and chemokine concentrations in SEBC and mechanical ventilation parameters, systemic inflammation parameters, and hemodynamic parameters. Results:Twenty-nine SEBC samples were obtained from 13 ICU patients. IL-1β, IL-4, IL-8, and IL-17 were detected in more than 90% of SEBC samples, and significant correlations between multiple cytokines and chemokines were found. Several significant correlations were found between cytokines and chemokines in SEBC and mechanical ventilation parameters and serum lactate concentrations. Conclusion:This pilot study showed that it is feasible to detect cytokines and chemokines in SEBC samples obtained without a cooling module. Despite small sample size, correlations were found between cytokines and chemokines in SEBC and mechanical ventilation parameters, as well as serum lactate concentrations. This simple SEBC collection method provides the opportunity to collect EBC samples in large prospective ICU cohorts.

摘要

: 简介。呼出气冷凝液 (EBC) 是一种从呼吸道收集样本的无创方法。通常,需要一个热电冷却模块来收集足够的 EBC 体积进行分析。在这里,我们评估了直接从呼吸机回路收集的 EBC 中细胞因子和趋化因子检测的可行性,而无需使用冷却模块: 旋转衍生呼出气冷凝液 (SEBC)。 方法: 前瞻性地从旋转适配器中收集 SEBC,并在-80 ℃ 下保存。本研究的目的是用多重免疫分析法检测 SEBC 中的细胞因子和趋化因子。次要结局是评估 SEBC 中细胞因子和趋化因子浓度与机械通气参数、全身炎症参数和血流动力学参数之间的相关性。 结果: 从 13 例 ICU 患者中获得 29 例 SEBC 样本。在超过 90% 的 SEBC 样本中检测到 il-1 β 、 IL-4 、 IL-8 和 IL-17,并且发现多种细胞因子和趋化因子之间存在显著相关性。SEBC 中的细胞因子和趋化因子与机械通气参数和血清乳酸浓度之间存在显著相关性。 结论: 这项初步研究表明,在没有冷却模块的情况下获得的 SEBC 样本中检测细胞因子和趋化因子是可行的。尽管样本量较小,但 SEBC 中的细胞因子和趋化因子与机械通气参数以及血清乳酸浓度之间存在相关性。这种简单的 SEBC 收集方法提供了在大型前瞻性 ICU 队列中收集 EBC 样本的机会。

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作者列表:["Maria Kózka","Aurelia Sega","Katarzyna Wojnar-Gruszka","Agnieszka Tarnawska","Agnieszka Gniadek"]

METHODS:Background: The hospitalization of patients treated in the intensive care unit (ICU) in 5&#8722;15% of cases is associated with the occurrence of a complication in the form of ventilator-associated pneumonia (VAP). Purpose: Retrospective assessment of risk factors of VAP in patients treated at ICUs in the University Hospital in Krakow. Methods: The research involved the medical documentation of 1872 patients treated at the ICU of the University Hospital in Krakow between 2014 and 2017. The patients were mechanically ventilated for at least 48 h. The obtained data were presented by qualitative and quantitative analysis (%). The qualitative variables were compared using the Chi2 test. Statistically significant was the p < 0.05 value. Results: VAP was demonstrated in 23% of all patients treated in ICU during the analyzed period, and this infection occurred in 13% of men and 10% of women. Pneumonia associated with ventilation was found primarily in patients staying in the ward for over 15 days and subjected to intratracheal intubation (17%). A statistically significant was found between VAP and co-morbidities, e.g., chronic obstructive pulmonary disease, diabetes, alcoholism, obesity, the occurrence of VAP and multi-organ trauma, hemorrhage/hemorrhagic shock, and fractures as the reasons for admitting ICU patients. Conclusions: Patients with comorbidities such as chronic obstructive pulmonary disease, obesity, diabetes, and alcoholism are a high-risk group for VAP. Particular attention should be paid to patients admitted to the ICU with multi-organ trauma, fractures, and hemorrhage/hemorrhagic shock as patients predisposed to VAP. There is a need for further research into risk factors for non-modifiable VAP such as comorbidities and reasons for ICU admission in order to allow closer monitoring of these patients for VAP.

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影响因子:2.87
发表时间:2020-01-28
来源期刊:Bioscience reports
DOI:10.1042/BSR20192435
作者列表:["Yu H","Luo J","Ni Y","Hu Y","Liu D","Wang M","Liang B","Liang Z"]

METHODS::Backgroud Severe pneumonia is one of the most common causes for mechanical ventilation. We aimed to early identify severe pneumonia patients with high risk of extubation failure in order to improve prognosis. Methods From April 2014 to December 2015, medical records of intubated patients with severe pneumonia in intensive care unit were retrieved from database. Patients were divided into extubation success and failure groups, and multivariate logistic regressions were performed to identify independent predictors for extubation failure. Results A total of 125 eligible patients were included, of which 82 and 43 patients had extubation success and failure, respectively. APACHE II score (odds ration (OR) 1.141, 95% confident interval (CI) 1.022-1.273, P = 0.019, cutoff at 17.5), blood glucose (OR 1.122, 95%CI 1.008-1.249, P = 0.035, cutoff at 9.87mmol/L), dose of fentanyl (OR 3.010, 95%CI 1.100-8.237, P = 0.032, cutoff at 1.135mg/d), and the need for red blood cell (RBC) transfusion (OR 2.774, 95%CI 1.062-7.252, P = 0.037) were independent risk factors for extubation failure. Conclusions In patients with severe pneumonia, APACHE II score > 17.5, blood glucose > 9.87mmol/L, fentanyl usage > 1.135mg/d, and the need for RBC transfusion might be associated with higher risk of extubation failure.

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影响因子:3.86
发表时间:2020-01-28
来源期刊:Resuscitation
DOI:10.1016/j.resuscitation.2020.01.013
作者列表:["Lundin A","Karlsson T","Herlitz J","Lundgren P","Rylander C"]

METHODS:PURPOSE:To assess the association between the duration of mechanical ventilation during post resuscitation care and 30-day survival after cardiac arrest. METHODS:We conducted a retrospective observational study using data from two national registries. Comatose cardiac arrest patients admitted to general intensive care in Swedish hospitals between 2011 and 2016 were eligible. Based on the median duration of mechanical ventilation for patients who did not survive to hospital discharge, used as a proxy for the endurance of post resuscitation care, the hospitals were divided into four ordered groups for which association with 30-day survival was analyzed. RESULTS:In total, 5.113 patients in 56 hospitals were included. Median duration of mechanical ventilation for patients who did not survive to hospital discharge ranged from 17 hours in hospital group 1 to 51 hours in hospital group 4. After adjustment for baseline characteristics, 30-day survival in the entire cohort was positively and independently associated with ordered hospital group: (adjusted odds ratio (95%CI); 1.12 (1.02,1.23); p = 0.02). Thus, hospitals with a longer duration of mechanical ventilation among non-survivors had better survival rate among patients admitted to ICU after a cardiac arrest. However, in a secondary analysis restricted to patients with length of stay in the intensive care unit ≥ 48 hours, there was no significant association between 30-day survival and ordered hospital group. CONCLUSION:A tendency for longer duration of post resuscitation care in the ICU was associated with higher 30-day survival in comatose patients admitted to intensive care after cardiac arrest.

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