COVID-19 Critical Care Research Articles

Neurological Complications and Outcomes in Critically Ill Patients With COVID-19: Results From International Neurological Study Group From the COVID-19 Critical Care Consortium.

In this COVID-19 Critical Care Consortium (CCCC) sub-study, we qualified neurological complications associated with SARS-CoV2 infection. The CCCC is an international, multicenter study. Eligible patients were COVID-19 patients admitted to intensive care units (ICU) across 23 centers between 1/7/2020 to 6/23/2022. Incidence of neurological complications was estimated as number of events per hospital days and per admission using Poisson regression. Associations between neurological complications and risk factors were assessed using multivariable Poisson regression. 713 patients were included. Median age = 56years (interquartile range (IQR) = 45-65). Neurological complications reported in 61/480 patients (12.7%) with the majority being ischemic stroke (2.9%), intracranial hemorrhage (ICH) (2.8%), and seizures (2.6%). Multivariable analysis for neurological complications per admitted days showed comorbid neurological conditions (incidence rate ratio (IRR) = 6.35, 2.57-15.7) were an independent risk factor for ischemic stroke. Extracorporeal membrane oxygenation (IRR = 5.32, 1.52-18.6), low-middle income countries (LMIC) vs high income countries (HIC) (IRR = 4.70, 1.62-13.7), and age >55 (IRR = 3.66, 1.23-10.9) were independent risk factors for ICH. Co-morbid neurological conditions (IRR = 3.43, 1.11-10.6), LMIC vs HIC (IRR = 8.69, 2.15-35.2), July-December 2020 vs January-June 2020 (IRR = 0.17, 0.04-0.69) and age >55 (IRR = 4.05, 1.15-14.3) were independent risk factors for seizure. Decision-making should incorporate salient risk factors to inform management of SARS-CoV2 infection and avoid neurological complications.

Epicardial adipose tissue defined by initial polytrauma CT of mechanically ventilated trauma patients: retrospective single-center cohort study to predict short-term outcomes.

Epicardial adipose tissue (EAT) detected by computed tomography (CT) is associated with morbidity and mortality in patients with COVID-19 and other critical care patient cohorts, whereas their prognostic relevance in trauma patients remains unclear. The present study explored associations with four potential short-term outcomes in trauma patients. All consecutive trauma patients requiring emergency tracheal intubation and mechanical ventilation before initial whole-body CT imaging at a level-1 trauma center over a 12-year period (2008-2019) were reanalyzed for this study. EAT was measured semiquantitatively in initial CT and analyzed regarding associations with 24-hour and 30-day mortality using Cox proportional hazard models. In survivors, associations of EAT with intensive care unit length of stay (ICU LOS) and mechanical ventilation duration were analyzed using linear regression analyses. Four hundred fifty-five patients (74.7% male) with a median age of 49 years, and a median injury severity score (ISS) of 26 points were analyzed. In univariable analysis, EAT index was significantly associated with 24-hour and 30-day mortality (p = 0.007, and p = 0.013, respectively). After adjustment for significant predictors age, body mass index, and ISS, no significant associations were confirmed (p = 0.622, and p = 0.903, respectively). In a subanalysis of 353 survivors, EAT index was significantly associated with ICU LOS and mechanical ventilation duration in univariable analyses (p = 0.031, and p = 0.014, respectively), but not in multivariable analyses (p = 0.81 and p = 0.46, respectively). EAT index was associated with short-term outcomes in severely injured trauma patients, which not remained significant in multivariable analysis, suggesting that its prognostic capability is limited.

Worldwide application and valuation of extracorporeal membrane oxygenation support during the COVID-19 pandemic (WAVES).

The outcomes of COVID-19 patients on venovenous extracorporeal membrane oxygenation (VV-ECMO) varied. We aim to investigate the variability concerning location and timeframe. We conducted a retrospective analysis of data from 351 institutions in 53 countries. The primary outcome was survival to hospital discharge or death up to 90 days from ECMO start. The associations between calendar time (month and year) of ECMO initiation and the primary outcome were examined by Cox regression modeling. Multivariable survival analyses were adjusted for the time of ECMO start, age, body mass index, APACHE II, SOFA, and the duration of mechanical ventilation before ECMO. 1060 adult COVID-19 patients enrolled in the COVID-19 Critical Care Consortium (COVID Critical) international registry and required VV-ECMO support. The study period is from January 2020 to December 2021. The median age was 51 years old, and 70% were male patients. Most patients were from Europe (39.3%) and North America (37.4%). The in-hospital mortality of the entire cohort was 47.12%. In North America and Europe, there was an increased probability of death from May 2020 through February 2021. Latin America showed a steady rate of survival until late in the study. South Asia, the Middle East, and Africa showed an increased chance of mortality around May 2020. In the Asian-Pacific region, after February 2021, there was an increased probability of death. The time of ECMO initiation and advanced patient age were associated with increased mortality. Variability in the outcomes of COVID-19 patients on VV-ECMO existed within different regions. This variability reflects the differences in resources, policies, patient selection, management, and possibly COVID-19 virus subtypes. Our findings might help guide global response in the future by early adoption of patient selection protocols, worldwide policies, and delivery of resources.

Factors Affecting Covid-19 Critical Care Capacity: A Case Study of Lahore, Pakistan

Covid-19 was declared a pandemic in 2020 and diffused everywhere in the world. Since then, many models have been created to study the diffusion of the disease. This paper is an attempt to predict the dispersion of COVID-19 and extract the prime factors of COVID-19 critical surge care capacity in Lahore. The primary data were collected using a questionnaire as a tool. The data were obtained from both public and private hospitals in Lahore. The implementation of factor analysis in the current study of the prime causes of COVID-19 surge capacity was analyzed to anticipate a reference for rudimentary research on COVID-19 and its prevention and management. It was analyzed through factor analysis that Patient Surge during the peak month of the pandemic caused employee burden, PPE unavailability and shortage, lack of testing supplies, bed and ventilator shortages, and an increase in cases with no hygiene and precautionary measures. These are the major factors that were responsible for the surge of disease in Lahore. It was identified that resolving these basic issues can bring improvements in future disease management, early preparation, and quick response to the pandemic outbreak to prevent human suffering and financial loss.

Hemorrhage and thrombosis in COVID-19-patients supported with extracorporeal membrane oxygenation: an international study based on the COVID-19 critical care consortium

BackgroundExtracorporeal membrane oxygenation (ECMO) is a rescue therapy in patients with severe acute respiratory distress syndrome (ARDS) secondary to COVID-19. While bleeding and thrombosis complicate ECMO, these events may also occur secondary to COVID-19. Data regarding bleeding and thrombotic events in COVID-19 patients on ECMO are sparse.MethodsUsing the COVID-19 Critical Care Consortium database, we conducted a retrospective analysis on adult patients with severe COVID-19 requiring ECMO, including centers globally from 01/2020 to 06/2022, to determine the risk of ICU mortality associated with the occurrence of bleeding and clotting disorders.ResultsAmong 1,248 COVID-19 patients receiving ECMO support in the registry, coagulation complications were reported in 469 cases (38%), among whom 252 (54%) experienced hemorrhagic complications, 165 (35%) thrombotic complications, and 52 (11%) both. The hazard ratio (HR) for Intensive Care Unit mortality was higher in those with hemorrhagic-only complications than those with neither complication (adjusted HR = 1.60, 95% CI 1.28–1.99, p < 0.001). Death was reported in 617 of the 1248 (49.4%) with multiorgan failure (n = 257 of 617 [42%]), followed by respiratory failure (n = 130 of 617 [21%]) and septic shock [n = 55 of 617 (8.9%)] the leading causes.ConclusionsCoagulation disorders are frequent in COVID-19 ARDS patients receiving ECMO. Bleeding events contribute substantially to mortality in this cohort. However, this risk may be lower than previously reported in single-nation studies or early case reports.Trial registration ACTRN12620000421932 (https://covid19.cochrane.org/studies/crs-13513201).

COVID-19 critical care triage across Canada: a narrative synthesis and ethical analysis of early provincial triage protocols.

The COVID-19 pandemic created conditions of scarcity that led many provinces within Canada to develop triage protocols for critical care resources. In this study, we sought to undertake a narrative synthesis and ethical analysis of early provincial pandemic triage protocols. We collected provincial triage protocols through personal correspondence with academic and political stakeholders between June and August 2020. Protocol data were extracted independently by two researchers and compared for accuracy and agreement. We separated data into three categories for comparative content analysis: protocol development, ethical framework, and protocol content. Our ethical analysis was informed by a procedural justice framework. We obtained a total of eight provincial triage protocols. Protocols were similar in content, although age, physiologic scores, and functional status were variably incorporated. Most protocols were developed through a multidisciplinary, expert-driven, consensus process, and many were informed by influenza pandemic guidelines previously developed in Ontario. All protocols employed tiered morality-focused exclusion criteria to determine scarce resource allocation at the level of regional health care systems. None included a public engagement phase, although targeted consultation with public advocacy groups and relevant stakeholders was undertaken in select provinces. Most protocols were not publicly available in 2020. Early provincial COVID-19 triage protocols were developed by dedicated expert committees under challenging circumstances. Nonetheless, few were publicly available, and public consultation was limited. No protocols were ever implemented, including during periods of extreme critical care surge. A national approach to pandemic triage that incorporates additional aspects of procedural justice should be considered in preparation for future pandemics.

Exploring the recovery journey of COVID-19 critical care survivors during the first year after hospital discharge.

To explore the longitudinal recovery of patients admitted to critical care following COVID-19 over the year following hospital discharge. To understand the important aspects of the patients' recovery process and key elements of their caregivers' experiences during this time. A longitudinal qualitative study using semi-structured interviews. Two acute hospitals in South East England and follow-up in the community. Six COVID-19 critical care survivors from the first wave of the pandemic (March-May 2020) and five relatives were interviewed 3 months after hospital discharge. The same six survivors and one relative were interviewed again at 1 year. Interviews were transcribed verbatim, anonymised and a reflexive thematic analysis was conducted. Three themes were developed: (1) 'The cycle of guilt, fear and stigma'; (2) 'Facing the uncertainties of recovery' and (3) 'Coping with lingering symptoms - the new norm'. The first theme highlights survivors' reluctance to share their experiences associated with contracting the disease. The second theme, explores challenges faced by the survivors and their relatives in navigating the recovery process, given the unknown nature of the illness. The final theme illustrates the mechanisms survivors develop to come to terms with the remnants of their illness and critical care stay. The longitudinal nature of the study highlighted the persisting symptoms of long COVID-19, their impact on survivors and coping methods amidst the ongoing pandemic. Further research into the experiences of those affected in the first and subsequent waves of the COVID-19 pandemic, is desirable to help guide the formulation of the optimally supported recovery pathways.

Race and ethnicity in the COVID-19 Critical Care Consortium: demographics, treatments, and outcomes, an international observational registry study

BackgroundImproving access to healthcare for ethnic minorities is a public health priority in many countries, yet little is known about how to incorporate information on race, ethnicity, and related social determinants of health into large international studies. Most studies of differences in treatments and outcomes of COVID-19 associated with race and ethnicity are from single cities or countries.MethodsWe present the breadth of race and ethnicity reported for patients in the COVID-19 Critical Care Consortium, an international observational cohort study from 380 sites across 32 countries. Patients from the United States, Australia, and South Africa were the focus of an analysis of treatments and in-hospital mortality stratified by race and ethnicity. Inclusion criteria were admission to intensive care for acute COVID-19 between January 14th, 2020, and February 15, 2022. Measurements included demographics, comorbidities, disease severity scores, treatments for organ failure, and in-hospital mortality.ResultsSeven thousand three hundred ninety-four adults met the inclusion criteria. There was a wide variety of race and ethnicity designations. In the US, American Indian or Alaska Natives frequently received dialysis and mechanical ventilation and had the highest mortality. In Australia, organ failure scores were highest for Aboriginal/First Nations persons. The South Africa cohort ethnicities were predominantly Black African (50%) and Coloured* (28%). All patients in the South Africa cohort required mechanical ventilation. Mortality was highest for South Africa (68%), lowest for Australia (15%), and 30% in the US.ConclusionsDisease severity was higher for Indigenous ethnicity groups in the US and Australia than for other ethnicities. Race and ethnicity groups with longstanding healthcare disparities were found to have high acuity from COVID-19 and high mortality. Because there is no global system of race and ethnicity classification, researchers designing case report forms for international studies should consider including related information, such as socioeconomic status or migration background.*Note: “Coloured” is an official, contemporary government census category of South Africa and is a term of self-identification of race and ethnicity of many citizens of South Africa.

Characteristics of and Outcomes in COVID-19 Critical Care Patients in the Qassim Region, Saudi Arabia

Characteristics of and Outcomes in COVID-19 Critical Care Patients in the Qassim Region, Saudi Arabia

Risk analysis of COVID-19 hospitalization and critical care by race and region in the United States: a cohort study

BackgroundThis study aimed to identify the current risk factors for coronavirus disease 2019 severity and examine its association with medication use.MethodsWe used data from a large United States electronic health record database to conduct an anonymized cohort study of 171,491 patients with coronavirus disease 2019. The study was conducted from January 1, 2020, to August 27, 2021. Data on age, race, sex, history of diseases, and history of medication prescriptions were analyzed using the Cox proportional hazards model analysis to calculate hazard ratios for hospitalization and severe risk.ResultsFactors that increased the risk of hospitalization and critical care were age ≥ 65 years, male sex, type 2 diabetes, hypertension, interstitial pneumonia, and cardiovascular disease. In particular, age ≥ 65 years significantly increased the risk of hospitalization (hazard ratio, 2.81 [95% confidence interval, 2.58–3.07]; P < 0.001) and critical care (hazard ratio, 3.45 [2.88–4.14]; P < 0.001). In contrast, patients with hyperlipidemia had a reduced risk. However, patients with hyperlipidemia who were not taking statins had a significantly increased risk of hospitalization (hazard ratio, 1.24 [1.16–1.34]; P < 0.001). Sodium-glucose cotransporter-2 inhibitors, angiotensin-converting enzyme inhibitors, angiotensin II receptor blockers, glucocorticoids, and statins significantly reduced the risk of hospitalization and critical care. The risk of hospitalization and critical care increased in patients of all ethnicities with type 2 diabetes. The factors that significantly increased the risk of hospitalization in all regions were older age, hypertension, chronic obstructive pulmonary disease, and cardiovascular disease.ConclusionThis study identified factors that increase or reduce the risk of severe coronavirus disease. The provision of appropriate drug treatment and modification of lifestyle-related risk factors may reduce coronavirus disease severity.

Rapid cycle training for non-critical care physicians to meet intensive care unit staff shortage at an academic training center in a developing country during the COVID-19 pandemic

BackgroundThe sudden unexpected increase in critically ill COVID-19 patients admitted to Intensive Care Units (ICUs), resulted in an urgent need for expanding the physician workforce. A COVID-19 critical care crash (5C) course was implemented to introduce physicians without formal critical care training to care for critically ill COVID-19 patients. Upon successful completion of the course, physicians were recruited to work in a COVID-19 ICU under the supervision of a board-certified critical care physician. The aim of this study is to describe the methods of a novel course designed specifically to teach the management critically ill COVID-19 patients, while assessing change in knowledge, skill competency, and self-reported confidence.MethodsThe blended focused 5C course is composed of both virtual and practical components. Candidates may register for the practical component only after successful completion of the virtual component. We assessed knowledge acquisition using a multiple-choice question test (pre- and post-test assessment), skill competency, and self-reported confidence levels during simulated patient settings. Paired T-test was used to compare before and after course results.ResultsSixty-five physicians/trainees from different specialties were included in the analysis. Knowledge significantly increased from 14.92± 3.20 (out of 20 multiple-choice questions) to 18.81± 1.40 (p< 0.01), skill competence during practical stations had a mean minimum of 2 (out of 3), and self-reported confidence during a simulated patient setting increased significantly from 4.98± 1.15 (out of 10) to 8.76± 1.10 (out of 10) (p< 0.01).ConclusionWe describe our initiative in increasing the ICU physician workforce in the midst of the COVID-19 pandemic. The blended 5C course is a valuable educational program designed by experts from different backgrounds. Future research should be directed at examining outcomes of patients associated with graduates of such program.

Experiences of nurses in charge of COVID-19 critical care patients during the initial stages of the pandemic in Japan.

The fatality rate of the coronavirus disease (COVID-19) at the beginning of the pandemic was as high as 8.5%, and it was considered to be an intractable infectious disease. Reports regarding early experiences are essential for improving nurses' quality of care, patient safety, and working conditions during future pandemics. Therefore, this study aimed to describe the experiences of nurses who were in charge of critically ill COVID-19 patients during the early stages of the pandemic in Japan. This was a qualitative study. Participants were nurses who were in charge of critically ill COVID-19 patients in an emerging contagious disease ward between February and April 2020. Interviews were conducted in groups of 2-3 persons based on an interview guide using an online conferencing application to prevent infection. Consent to participation was obtained from 19 nurses. Five categories of experiences were generated from the analysis: "Fear of risk to my own life and to those of others around me", "The shock of finding myself amid an infectious disease pandemic", "Anxiety about unknown challenges", "Driven by a sense of purpose", and "Growth as nurses". Working under harsh conditions where nurses' safety is threatened may affect the quality of care and nurses' mental health. Therefore, nurses should receive both short-term and long-term support.

A cost-effectiveness analysis of COVID-19 critical care interventions in Addis Ababa, Ethiopia: a modeling study

ObjectiveTo estimate and compare the cost-effectiveness of COVID-19 critical care intervention approaches: noninvasive (oxygen without intubation) and invasive (intubation) management in Ethiopia.MethodsA Markov model is used to compare the costs and outcomes for non-invasive and invasive COVID-19 clinical interventions using both primary and secondary data sources. Healthcare provider costs (recurrent and capital cost) and patient-side costs (direct and indirect) were estimated and reported in United States Dollars (US$), 2021. The outcome measure used in this analysis was DALYs averted. Both the average cost-effectiveness ratio (ACER) and incremental cost-effectiveness ratio (ICER) were reported. One-way and probabilistic sensitivity analyses were applied to assess the robustness of the findings. The analysis is conducted using Tree Age pro health care software 2022.ResultThe average cost per patient per episode for mild/moderate, severe, noninvasive, and invasive critical management was $951, $3449, $5514, and $6500, respectively. According to the average cost-effective ratio (ACER), non-invasive management resulted in $1991 per DALY averted, while invasive management resulted in $3998 per DALY averted. Similarly, the incremental cost-effective ratio (ICER) of invasive compared to noninvasive management was $ 4948 per DALY averted.ConclusionClinical management of critical COVID-19 cases in Ethiopia is associated with a significant financial burden. Invasive intervention is unlikely to be a cost-effective COVID-19 intervention in Ethiopia compared to noninvasive critical case management using a willingness to pay threshold of three times GDP per capita.

PULM11: Regional Variation in Severe COVID-19 Therapeutics and Outcomes Within a Single Large Healthcare System: Insights from the ECMOCARD Study

Purpose: Despite extensive descriptions of patients and outcomes associated with critical illness due to COVID-19, there is paucity of data from individual large healthcare systems. Here we describe our experience at Baylor Scott & White Health in Texas. Methods: Patients, treatments, and outcomes were compared among our 4 ECMO centers in Central (Temple) and North Texas (Baylor All Saints (BAS), Baylor University Medical Center (BUMC), The Heart Hospital Baylor-Plano (THHBP)) via the ECMOCARD Registry (Covid-19 Critical Care Consortium) using Bonferroni-corrected multivariable statistics and post-hoc comparisons. Results: Of 228 patients (mean age 57.9 y; 56% men), 26% were treated at BAS, 27% at BUMC, 34% at Temple, and 13% at THBBP. All were admitted to the ICU or high dependency unit with a median length of stay of 17 days. The majority were on inotropes or vasopressors. Overall, 85% received some level of O2 support including 39% non-invasive, 67% high flow nasal cannula, and 34% ECMO, non-exclusive. The 28-day survival was 63% overall with some regional differences (BAS, 47%; BUMC, 72%; Temple, 64%; THHBP, 75%; P=0.02). Patient demographics differed by center with Temple having older patients and BUMC the largest proportion of Black patients (P<0.001). The most prevalent comorbidities were hypertension (59%), obesity (39%), Type 2 diabetes (36%), and chronic cardiac disease (29%). Temple patients had the highest prevalence of chronic neurological disorder, hypertension, and chronic kidney disease. The most frequent level of support at BAS, BUMC, and THHBP was invasive ventilation, whereas Temple patients most frequently were on high flow nasal O2. ECMO support was used most commonly at BUMC and least frequently at Temple. Summary: In this large hospital system there was significant variation among characteristics and treatments for patients with severe-COVID 19 illness despite system-wide protocolized care. Regional impact on patient characteristics and health outcomes warrants further study.

Critical care among newborns with and without a COVID-19 diagnosis, May 2020-February 2022.

To assess COVID-19 association with newborn critical care outcomes, including nursery level of care and ventilation, during three time periods: Pre-delta (May 2020-June 2021), Delta (July-November 2021), and Omicron (December 2021-February 2022). In a retrospective cohort of newborns born May 2020-February 2022 using the Premier Healthcare Database, we classified COVID-19 status and critical care using International Classification of Diseases 10th Revision and Current Procedural Terminology codes, laboratory data, and billing records and assessed for variation during three time periods. Of 1,388,712 newborns, 0.06% had COVID-19 during the birth hospitalization (Pre-delta period: 0.03%; Delta: 0.07%; Omicron: 0.21%). Among newborns with COVID-19, the risks for admission to a higher-level nursery and for invasive or non-invasive ventilation were lower in the Omicron period compared to Pre-delta and Delta periods. From May 2020-February 2022, COVID-19 in newborns was rare and cases were less severe during the period of Omicron predominance.

Cerebrovascular Complications of COVID-19 on Venovenous Extracorporeal Membrane Oxygenation.

Evidence of cerebrovascular complications in COVID-19 requiring venovenous extracorporeal membrane oxygenation (ECMO) is limited. Our study aims to characterize the prevalence and risk factors of stroke secondary to COVID-19 in patients on venovenous ECMO. We analyzed prospectively collected observational data, using univariable and multivariable survival modeling to identify risk factors for stroke. Cox proportional hazards and Fine-Gray models were used, with death and discharge treated as competing risks. Three hundred eighty institutions in 53 countries in the COVID-19 Critical Care Consortium (COVID Critical) registry. Adult COVID-19 patients who were supported by venovenous ECMO. None. Five hundred ninety-five patients (median age [interquartile range], 51 yr [42-59 yr]; male: 70.8%) had venovenous ECMO support. Forty-three patients (7.2%) suffered strokes, 83.7% of which were hemorrhagic. In multivariable survival analysis, obesity (adjusted hazard ratio [aHR], 2.19; 95% CI, 1.05-4.59) and use of vasopressors before ECMO (aHR, 2.37; 95% CI, 1.08-5.22) were associated with an increased risk of stroke. Forty-eight-hour post-ECMO Pa co2 -pre-ECMO Pa co2 /pre-ECMO Pa co2 (relative ΔPa co2 ) of negative 26% and 48-hour post-ECMO Pa o2 -pre-ECMO Pa o2 /pre-ECMO Pa o2 (relative ΔPa o2 ) of positive 24% at 48 hours of ECMO initiation were observed in stroke patients in comparison to relative ΔPa co2 of negative 17% and relative ΔPa o2 of positive 7% in the nonstroke group. Patients with acute stroke had a 79% in-hospital mortality compared with 45% mortality for stroke-free patients. Our study highlights the association of obesity and pre-ECMO vasopressor use with the development of stroke in COVID-19 patients on venovenous ECMO. Also, the importance of relative decrease in Pa co2 and moderate hyperoxia within 48 hours after ECMO initiation were additional risk factors.

Iliopsoas haematoma during extracorporeal membrane oxygenation: A registry report from the COVID-19 critical care consortium across 30 countries.

Iliopsoas haematoma (IPH) during extracorporeal membrane oxygenation (ECMO) is a rare bleeding complication that can be fatal due to its progression to abdominal compartment syndrome, but its incidence and risk factors are not well known. We have previously reported an IPH incidence rate of 16% in Japan. Among possible reasons for this high incidence, ethnicity has been hypothesised to play a role. Therefore, we used an international multi-centre cohort registry to test this hypothesis by determining the incidence rate of IPH. This study was performed using the COVID-19 Critical Care Consortium database, conducted in 30 countries across five continents between 3 January 2020, and 20 June 2022. Overall, 1102 patients received ECMO for COVID-19-related acute respiratory distress syndrome. Of them, only seven were reported to have IPH, indicating an incidence rate of 0.64%, with comparable rates between the countries. The IPH group tended to have a higher mortality rate (71.4%) than the non-IPH group (51%). Overall incidence of IPH in the studied COVID-19 ECMO cohort was 0.64%. Most cases were reported from Japan, Belgium, and Italy. In our study, this rare complication did not appear to be confined to Asian patients. Due to the high fatality rate, awareness about the occurrence of IPH should be recognised.

Impact of personal protective equipment attached powered air-purifying respirator on nursing-skill performance and psychosocial stress of intensive care unit COVID-19 nurses: A cross-sectional study.

To investigate how personal protective equipment with an attached powered air-purifying respirator worn by intensive care unit nurses caring for COVID-19 patients in Korea impacts nursing-skill performance and psychosocial stress. A cross-sectional descriptive study was designed using purposive sampling. Online data collection was conducted from 3 March 2021-20 March 2021on 181 nurses who had worked for more than 1 month in COVID-19 critical care settings wearing personal protective equipment with a powered air-purifying respirator. A structured questionnaire was used to gather data on sociodemographic characteristics, attitude toward personal protective equipment, nursing-skill performance wearing personal protective equipment and psychosocial stress. Data was sourced from structured questionnaire responses. Nursing skill performance decreased to 63.4%, compared with normal performance. Subjects' perceptions and attitudes related to PPE scored 3.56 out of 5; 44.7% of subjects reported severe psychosocial stress, which was significantly affected by attitude toward personal protective equipment usage, nursing performance, experience caring for COVID-19 patients and length of personal protective equipment usage per shift. Greater negative attitude toward usage of personal protective equipment with a powered air-purifying respirator, results in lower nursing-skill performance and higher the psychosocial stress of nurses responding to COVID-19 outbreaks. High negative attitude toward PPE and low nursing-skill performance due to PPE with an attached PAPR results in significant and debilitating psychosocial stress in ICU nurses responding to COVID-19 outbreaks. To respond effectively to future infectious disease outbreaks and improve nursing performance, minimising the inconvenience and restrictions experienced by nurses wearing personal protective equipment is critical. We adhered to relevant EQUATOR guidelines to report. No patient or public contribution.

Morbid obesity's impact on COVID-19 patients requiring venovenous extracorporeal membrane oxygenation: The covid-19 critical care consortium database review.

Introduction: Obesity is associated with a worse prognosis in COVID-19 patients with acute respiratory distress syndrome (ARDS). Veno-venous (V-V) Extracorporeal Membrane Oxygenation (ECMO) can be a rescue option, however, the direct impact of morbid obesity in this select group of patients remains unclear.Methods: This is an observational study of critically ill adults with COVID-19 and ARDS supported by V-V ECMO. Data are from 82 institutions participating in the COVID-19 Critical Care Consortium international registry. Patients were admitted between 12 January 2020 to 27 April 2021. They were stratified based on Body Mass Index (BMI) at 40kg/m2. The endpoint was survival to hospital discharge.Results: Complete data available on 354 of 401 patients supported on V-V ECMO. The characteristics of the high BMI (>40kg/m2) and lower BMI (≤40kg/m2) groups were statistically similar. However, the 'high BMI' group were comparatively younger and had a lower APACHE II score. Using survival analysis, older age (Hazard Ratio, HR 1.49 per-10-years, CI 1.25-1.79) and higher BMI (HR 1.15 per-5kg/m2 increase, CI 1.03-1.28) were associated with a decreased patient survival. A safe BMI threshold above which V-V ECMO would be prohibitive was not apparent and instead, the risk of an adverse outcome increased linearly with BMI.Conclusion: In COVID-19 patients with severe ARDS who require V-V ECMO, there is an increased risk of death associated with age and BMI. The risk is linear and there is no BMI threshold beyond which the risk for death greatly increases.

Efficacy and safety of antimicrobial stewardship prospective audit and feedback in patients hospitalised with COVID-19 (COVASP): a pragmatic, cluster-randomised, non-inferiority trial

The COVID-19 pandemic has been associated with increased antimicrobial use despite low rates of bacterial co-infection. Prospective audit and feedback is recommended to optimise antibiotic prescribing, but high-quality evidence supporting its use for COVID-19 is absent. We aimed to study the efficacy and safety of prospective audit and feedback in patients admitted to hospital for the treatment of COVID-19. COVASP was a prospective, pragmatic, non-inferiority, small-unit, cluster-randomised trial comparing prospective audit and feedback plus standard of care with standard of care alone in adults admitted to three hospitals in Edmonton, AB, Canada, with COVID-19 pneumonia. All patients aged at least 18 years who were admitted from the community to a designated study bed with microbiologically confirmed SARS-CoV-2 infection in the preceding 14 days were included if they had an oxygen saturation of 94% or lower on room air, required supplemental oxygen, or had chest-imaging findings compatible with COVID-19 pneumonia. Patients were excluded if they were transferred in from another acute care centre, enrolled in another clinical trial that involved antibiotic therapy, expected to progress to palliative care or death within 48 h of hospital admission, or managed by any member of the research team within 30 days of enrolment. COVID-19 unit and critical care unit beds were stratified and randomly assigned (1:1) to the prospective audit and feedback plus standard of care group or the standard of care group. Patients were masked to their bed assignment but the attending physician and study team were not. The primary outcome was clinical status on postadmission day 15, measured using a seven-point ordinal scale. We used a non-inferiority margin of 0·5. Analysis was by intention to treat. The trial is registered with ClinicalTrials.gov, NCT04896866, and is now closed. Between March 1 and Oct 29, 2021, 1411 patients were screened and 886 were enrolled: 457 into the prospective audit and feedback plus standard of care group, of whom 429 completed the study, and 429 into the standard of care group, of whom 404 completed the study. Baseline characteristics were similar for both groups, with an overall mean age of 56·7 years (SD 17·3) and a median baseline ordinal scale of 4·0 (IQR 4·0-5·0). 301 audit and feedback events were recorded in the intervention group and 215 recommendations were made, of which 181 (84%) were accepted. Despite lower antibiotic use in the intervention group than in the control group (length of therapy 364·9 vs 384·2 days per 1000 patient days), clinical status at postadmission day 15 was non-inferior (median ordinal score 2·0 [IQR 2·0-3·0] vs 2·0 [IQR 2·0-4·0]; p=0·37, Mann-Whitney U test). Neutropenia was uncommon in both the intervention group (13 [3%] of 420 patients) and the control group (20 [5%] of 396 patients), and acute kidney injury occurred at a similar rate in both groups (74 [18%] of 421 patients in the intervention group and 76 [19%] of 399 patients in the control group). No intervention-related deaths were recorded. This cluster-randomised clinical trial shows that prospective audit and feedback is safe and effective in optimising and reducing antibiotic use in adults admitted to hospital with COVID-19. Despite many competing priorities during the COVID-19 pandemic, antimicrobial stewardship should remain a priority to mitigate the overuse of antibiotics in this population. None.