scholarly journals Induced Immunosuppression in Critical Care

2020 ◽  
Author(s):  
Evgeny Grigoryev ◽  
Vera Matveeva ◽  
Artem Ivkin ◽  
Maryam Khanova

The maladaptive nature of the systemic inflammatory response syndrome, which may be caused by sepsis, trauma, or ischemia-reperfusion injury, is characterized by a shift towards the distant effects of pro- and anti-inflammatory mediators. Shock, blood loss, and metabolic disorders may cause the onset of multiple organ dysfunction syndrome. The final phase of critical illness is generally associated with induced immunosuppression and dysfunctions of neutrophils, monocytes and macrophages, dendritic cells, release of myeloid-derived suppressor cells, damage to glycocalyx and endothelium, and impaired metabolic conjugation. This review is aimed at providing novel evidences on the roles of various immune components, either innate or acquired, in the induction of immunosuppression from the standpoint of the rapid diagnosis of immune disorders in the intensive care unit using flow cytometry as a commonly accepted option.

2007 ◽  
Vol 16 (5) ◽  
pp. 434-443 ◽  
Author(s):  
Louise Rose ◽  
Sioban Nelson ◽  
Linda Johnston ◽  
Jeffrey J. Presneill

Background Responsibilities of critical care nurses for management of mechanical ventilation may differ among countries. Organizational interventions, including weaning protocols, may have a variable impact in settings that differ in nursing autonomy and interdisciplinary collaboration. Objective To characterize the role of Australian critical care nurses in the management of mechanical ventilation. Methods A 3-month, prospective cohort study was performed. All clinical decisions related to mechanical ventilation in a 24-bed, combined medical-surgical adult intensive care unit at the Royal Melbourne Hospital, a university-affiliated teaching hospital in Melbourne, Victoria, Australia, were determined. Results Of 474 patients admitted during the 81-day study period, 319 (67%) received mechanical ventilation. Death occurred in 12.5% (40/319) of patients. Median durations of mechanical ventilation and intensive care stay were 0.9 and 1.9 days, respectively. A total of 3986 ventilation and weaning decisions (defined as any adjustment to ventilator settings, including mode change; rate or pressure support adjustment; and titration of tidal volume, positive end-expiratory pressure, or fraction of inspired oxygen) were made. Of these, 2538 decisions (64%) were made by nurses alone, 693 (17%) by medical staff, and 755 (19%) by nurses and staff in collaboration. Decisions made exclusively by nurses were less common for patients with predominantly respiratory disease or multiple organ dysfunction than for other patients. Conclusions In this unit, critical care nurses have high levels of responsibility for, and autonomy in, the management of mechanical ventilation and weaning. Revalidation of protocols for ventilation practices in other clinical contexts may be needed.


2018 ◽  
Vol 2018 ◽  
pp. 1-2 ◽  
Author(s):  
Mariana Alves ◽  
Rita Faria ◽  
António Messias ◽  
Carlos Meneses-Oliveira

Eustachian valve endocarditis is rare. A literature review revealed that only 29 cases have been reported and, among them, there is only one mention of an intensive care unit (ICU) admission. We present an 82-year-old man without previous medical records who presented with septic shock with multiple organ dysfunction. The patient was admitted to the ICU and deteriorated with combined shock (septic + cardiogenic). A second ultrasound screen detected a prominent Eustachian valve with mobile multilobulated vegetation attached. Transesophageal echocardiography confirmed a 12 mm oscillating mass attached to a visible Eustachian valve.


2021 ◽  
Vol 36 (1) ◽  
pp. 55-70
Author(s):  
Jeffrey Haspel ◽  
Minjee Kim ◽  
Phyllis Zee ◽  
Tanja Schwarzmeier ◽  
Sara Montagnese ◽  
...  

We currently find ourselves in the midst of a global coronavirus disease 2019 (COVID-19) pandemic, caused by the highly infectious novel coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Here, we discuss aspects of SARS-CoV-2 biology and pathology and how these might interact with the circadian clock of the host. We further focus on the severe manifestation of the illness, leading to hospitalization in an intensive care unit. The most common severe complications of COVID-19 relate to clock-regulated human physiology. We speculate on how the pandemic might be used to gain insights on the circadian clock but, more importantly, on how knowledge of the circadian clock might be used to mitigate the disease expression and the clinical course of COVID-19.


Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Jiefeng Xu ◽  
Sen Ye ◽  
Zilong Li ◽  
Moli Wang ◽  
Zhengquan Wang ◽  
...  

Introduction: Systemic ischemia-reperfusion injury produced by CA and resuscitation can result in severe post-cardiac arrest syndrome; which includes systemic inflammatory response and multiple organ dysfunction syndrome such as acute pulmonary edema. We previously demonstrated that remote ischemic post-conditioning (RIpostC) improved post-resuscitation myocardial and cerebral function in a rat model of CA. In this study, we investigated the effects of RIpostC on inflammatory response and pulmonary edema after CPR in a porcine model. Hypothesis: RIpostC would alleviate post-resuscitation inflammatory response and pulmonary edema in a porcine model of CA. Methods: Fourteen male domestic pigs weighing 37 ± 2 kg were utilized. Ventricular fibrillation was electrically induced and untreated for 10 mins. The animals were then randomized to receive RIpostC or control. Coincident with the start of CPR, RIpostC was induced by four cycles of 5 mins of limb ischemia and then 5 mins of reperfusion. Defibrillation was attempted after 5 mins of CPR. The resuscitated animals were monitored for 4 hrs and observed for an additional 68 hrs. Results: Six of the seven animals in each group were successfully resuscitated. After resuscitation, significantly lower levels of tumor necrosis factor-α and interleukin-6 were measured in the animals that received RIpostC when compared with the control group. Post-resuscitation extra-vascular lung water index was lower in the RIpostC group than in the control group; in which the differences were significant at 2,3 and 4 hrs (Table). Conclusion: In a porcine model of CA, RIpostC significantly alleviates post-resuscitation inflammatory response and pulmonary edema.


2018 ◽  
Vol 7 (2) ◽  
pp. e000239 ◽  
Author(s):  
Krishna Aparanji ◽  
Shreedhar Kulkarni ◽  
Megan Metzke ◽  
Yvonne Schmudde ◽  
Peter White ◽  
...  

Delirium is a key quality metric identified by The Society of Critical Care Medicine for intensive care unit (ICU) patients. If not recognised early, delirium can lead to increased length of stay, hospital and societal costs, ventilator days and risk of mortality. Clinical practice guidelines recommend ICU patients be assessed for delirium at least once per shift. An initial audit at our urban tertiary care hospital in Illinois, USA determined that delirium assessments were only being performed 31% of the time. Nurses completed simulation based education and were trained using delirium screening videos. After the educational sessions, delirium documentation increased from 40% (12/30) to 69% (41/59) (two-proportion test, p<0.01) for dayshift nurses and from 27% (8/30) to 61% (36/59) (two-proportion test, p<0.01) during the nightshift. To further increase the frequency of delirium assessments, the delirium screening tool was standardised and a critical care progress note was implemented that included a section on delirium status, management strategy and discussion on rounds. After the documentation changes were implemented, delirium screening during dayshift increased to 93% (75/81) (two-proportion test, p<0.01). Prior to this project, physicians were not required to document delirium screening. After the standardised critical care note was implemented, documentation by physicians was 95% (106/111). Standardising delirium documentation, communication of delirium status on rounds, in addition to education, improved delirium screening compliance for ICU patients.


2012 ◽  
Vol 73 (2) ◽  
pp. 100 ◽  
Author(s):  
Ick Hee Kim ◽  
Seung Bae Park ◽  
Seonguk Kim ◽  
Sang-Don Han ◽  
Seung Seok Ki ◽  
...  

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