Critical Care Resources Research Articles

Multiple Organ Dysfunction in Older Major Trauma Critical Care Patients

Severely injured older people present an increasing challenge for trauma systems. Recovery for those who require critical care may be complicated by MODS. In older trauma patients, MODS may not be predictable based on chronological age alone and factors associated with its development and resolution are unclear. Consecutive adult patients (aged ≥16 years) admitted to 4 level 1 major trauma center critical care units were enrolled and reviewed daily until discharge or death. MODS was defined by a daily total sequential organ failure assessment score of >5. One thousand three hundred sixteen patients were enrolled over 18 months and one-third (434) were aged ≥65 years. Incidence of MODS was high for both age groups (<65 years: 64%, ≥65 years: 70%). There were few differences in severity, patterns, and duration of MODS between cohorts, except for older traumatic brain injury (TBI) patients who experienced a prolonged course of MODS recovery (TBI: 9 days vs no TBI: 5 days, P < 0.01). Frailty rather than chronological age had a strong association with MODS development (odds ratio [OR], 6.9; 95% confidence intervals [CI], 3.0-12.4; P < 0.001) and MODS mortality (OR, 2.1; 95% CI, 1.31-3.38; P = 0.02). Critical care resource utilization was not increased in older patients, but MODS had a substantial impact on mortality (<65 years: 17%; ≥65 years: 28%). The majority of older patients who did not develop MODS survived and had favorable discharge outcomes (home discharge ≥65 years NoMODS: 50% vs MODS: 15%; P < 0.01). Frailty rather than chronological age appears to drive MODS development, recovery, and outcome in older cohorts. Early identification of frailty after trauma may help to predict MODS and plan care in older trauma.

The Utilization of Critical Care Resources in Pediatric Neurocritical Care Patients.

To define the prevalence of neurologic diagnoses and evaluate the utilization of critical care and neurocritical care (NCC) resources among children admitted to the PICU. Retrospective cohort analysis. Data submitted to the Virtual Pediatric Systems (VPS) database. All children entered in VPS during 2016 (January 1, 2016, to December 31, 2016). None. There were 128,688 patients entered into VPS and were comprised of 24.3% NCC admissions and 75.7% general PICU admissions. The NCC cohort was older, represented more scheduled admissions, and was more frequently admitted from the operating room. The NCC cohort also experienced a greater decline in prehospitalization to posthospitalization functional status and required more frequent use of endotracheal intubation, arterial lines, and foley catheters but had an overall shorter duration of PICU and hospital length of stay with a higher mortality rate. One thousand seven hundred fifteen patients at 12 participating institutions were entered into a novel, pilot NCC module evaluating sources of secondary neurologic injury. Four hundred forty-eight patients were manually excluded by the data entrant, leaving 1,267 patients in the module. Of the patients in the module, 75.8% of patients had a NCC diagnosis as their primary diagnosis; they experienced a high prevalence of pathophysiologic events associated with secondary neurologic insult (ranging from hyperglycemia at 10.5% to hyperthermia at 36.8%). In children admitted to a VPS-contributing PICU, a diagnosis of acute neurologic disease was associated with greater use of resources. We have identified the most common etiologies of acute neurologic disease in the 2016 VPS cohort, and such admissions were associated with significant decrease in functional status, as well as an increase in mortality.

Intensive care clincians' information acquisition during the first wave of the Covid 19 pandemic.

IntroductionThe global pandemic caused by novel Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has led to an unprecedented demand on critical care resources. The United Kingdom experienced its ‘first wave’ of Coronavirus–19 (Covid-19) disease in Spring 2020. Critical care units had to make major changes to their working practices in a short space of time and faced multiple challenges in doing so, including the challenge of caring for patients in multiple organ failure secondary to Covid-19 infection in the absence of an established evidence base of best practice. We undertook a qualitative investigation of the personal and professional challenges faced by critical care consultants in one Scottish health board in acquiring and evaluating information to guide clinical decision making during the first wave of the SARS-CoV-2 pandemic.MethodsCritical care consultants in NHS Lothian working in critical care from March to May 2020 were eligible to participate in the study. Participants were invited to take part in a one-to-one semi structured interview conducted using Microsoft Teams videoconferencing software. Reflexive thematic analysis was used as the method for data analysis using qualitative research methodology informed by a subtle realist position.ResultsAnalysis of the interview data generated the following themes: The Knowledge Gap; Trust in Information; and Implications for Practice. Illustrative quotes are presented in the text and thematic tables.DiscussionThis study explored the experiences of critical care consultant physicians in acquiring and evaluating information to guide clinical decision making during the first wave of the SARS CoV2 pandemic. This study revealed that clinicians were profoundly affected by the pandemic and the ways in which it changed how they could access information to guide clinical decision making. The paucity of reliable information on SARS-CoV-2 posed a significant threat to the clinical confidence of participants. Two strategies were adopted to ease mounting pressures – an organised approach to data collection and the establishment of a local community of collaborative decision-making. These findings contribute to the wider literature by describing health care professionals’ experiences in unprecedented times and could inform recommendations for future clinical practice. This could include governance around responsible information sharing in professional instant messaging groups, and medical journal guidelines on suspension of usual peer review and other quality assurance processes during pandemics.

Effect of the First Year of COVID-19 Pandemic on Ophthalmological Practice: A Multi-Centre Italian Study with a Focus on Medico-Legal Aspects

During the COVID-19 era, several restrictions on surgery have been imposed to reduce the infectious risk among patients and staff and further preserve the availability of critical care resources. The aim of the study was to assess their impact on the ophthalmological practice and its medico-legal implications. A retrospective review of electronic medical records of the ophthalmological departments of the University of Cagliari (SGD) and University Magna Græcia of Catanzaro (UMG), from 16 March 2020 to 14 March 2021 (52 weeks), were compared with data from the corresponding period of the previous year. Weekly data on the number and type of diagnoses and procedures performed were collected and analysed in relation to the weekly average of the total number of COVID-19 patients in intensive care units (ICUs) and inpatients in Sardinia and Calabria. Results showed a significant decrease in cataract surgery operations by 47% and 31%, respectively, in the SGD and UMG (p &lt; 0.05) during the second semester of the year; this drop occurred at the same time as the increase in COVID-19 patients in ICU and those hospitalised in both regions. Additionally, anterior segment surgery decreased at the UMG by 30% (p &lt; 0.05). Vitreoretinal surgery decreased by 27% at the SGD, differently increased amount 31.5% at UMG (p &lt; 0.05). The pandemic had a dramatic impact on elective surgery in ophthalmology, quantifying the backlog is the first step in order to understanding the measures to be taken in near future.

Treatments, resource utilization, and outcomes of COVID-19 patients presenting to emergency departments across pandemic waves: an observational study by the Canadian COVID-19 Emergency Department Rapid Response Network (CCEDRRN)

BackgroundTreatment for coronavirus disease 2019 (COVID-19) evolved between pandemic waves. Our objective was to compare treatments, acute care utilization, and outcomes of COVID-19 patients presenting to emergency departments (ED) across pandemic waves.MethodsThis observational study enrolled consecutive eligible COVID-19 patients presenting to 46 EDs participating in the Canadian COVID-19 ED Rapid Response Network (CCEDRRN) between March 1 and December 31, 2020. We collected data by retrospective chart review. Our primary outcome was in-hospital mortality. Secondary outcomes included treatments, hospital and ICU admissions, ED revisits and readmissions. Logistic regression modeling assessed the impact of pandemic wave on outcomes.ResultsWe enrolled 9,967 patients in 8 provinces, 3,336 from the first and 6,631 from the second wave. Patients in the second wave were younger, fewer met criteria for severe COVID-19, and more were discharged from the ED. Adjusted for patient characteristics and disease severity, steroid use increased (odds ratio [OR] 7.4; 95% confidence interval [CI] 6.2–8.9), and invasive mechanical ventilation decreased (OR 0.5; 95% CI 0.4–0.7) in the second wave compared to the first. After adjusting for differences in patient characteristics and disease severity, the odds of hospitalization (OR 0.7; 95% CI 0.6–0.8) and critical care admission (OR 0.7; 95% CI 0.6–0.9) decreased, while mortality remained unchanged (OR 0.7; 95% CI 0.5–1.1).InterpretationIn patients presenting to cute care facilities, we observed rapid uptake of evidence-based therapies and less use of experimental therapies in the second wave. We observed increased rates of ED discharges and lower hospital and critical care resource use over time. Substantial reductions in mechanical ventilation were not associated with increasing mortality. Advances in treatment strategies created health system efficiencies without compromising patient outcomes.Trial registrationClinicaltrials.gov, NCT04702945.

Risk stratification and cost-effectiveness analysis of adult patients receiving extracorporeal membrane oxygenation.

A more effective allocation of critical care resources is important as the cost of intensive care increases. A model has been developed to predict the probability of in-hospital death among patients who received extracorporeal membrane oxygenation (ECMO). Cost-effectiveness analyses (CEA) were performed regarding the relationship between hospitalization expenses and predicted survival outcomes. Adult patients who received ECMO in a medical center in Taiwan (2005-2016) were included. A logistic regression model was applied to a spectrum of clinical measures obtained before and during ECMO institutions to identify the risk variables for in-hospital mortality. CEA were reported as a predictive risk in quintiles and defined as the cost of each quality-adjusted life-year (QALY). The distribution of the cost-effectiveness ratio (CER) was measured by the ellipse and acceptability curve methods. A total of 919 patients (659 males, mean age: 53.7 years) were enrolled. Ten variables emerged as significant predictors of in-hospital death. The area under the receiver operating characteristic curve was 0.75 (95% confidence interval: 0.72-0.79). In-hospital and total follow-up times were 40,366 and 660,205 person-days, respectively. The total in-hospital expense was $31,818,701 USD and the total effectiveness was 1687.3 QALY. For the lowest to the highest risk quintile, the mean mortality risks were 0.30, 0.48, 0.61, 0.75, and 0.88, and mean adjusted CER were $24,230, $43,042, $54,929, $84,973, and $149,095 per QALY, respectively. The efficient allocation of limited and costly resources is most important when one is forced to decide between groups of critically ill patients. The current analyses of ECMO outcomes should assist in identifying candidates with the greatest prospect for survival while avoiding futile treatments.

Time for a do-not-resuscitate policy? Outcomes of inpatient cardiopulmonary resuscitation in very old patients in Bahrain.

Globally, do-not-resuscitate orders have been used for many years. Due to the lack of a do-not-resuscitate policy, full resuscitative measures including cardiopulmonary resuscitation (CPR) are applied for all patients admitted to our institution regardless of prognosis. To observe the outcomes of very old patients who underwent CPR, including mortality rate and length of stay. This will allow discussion of the need to implement a do-not-resuscitate policy in Bahrain, and its associated challenges. This was a retrospective observational study conducted in a 1200-bed tertiary hospital in Bahrain. We included patients aged ≥ 80 years admitted under general medicine who underwent CPR between January and July 2018. Medical records were reviewed for patients' characteristics and outcomes. Ninety patients were included in the study with an average age of 87.91 (6.27) years. The inhospital mortality rate was 96.67%, and 57.78% of patients died immediately after the first CPR attempt and 38.89% died during subsequent attempts. The survival rate at 1-year follow-up was only 1.11%. Survival of very old patients after cardiopulmonary arrest is low, and survival at discharge is even lower. The increase in the very old population will lead to a higher demand for critical care resources given the absence of a do-not-resuscitate policy. Our results demonstrate that implementing such a policy at our institution is crucial to reduce the number of futile CPR attempts, minimizing patients' suffering, and optimizing resource allocation.

Rapid deployment of a virtual simulation curriculum to prepare for critical care triage during the COVID-19 pandemic.

BackgroundDuring the COVID-19 pandemic in Ontario, Canada, an Emergency Standard of Care for Major Surge was created to establish a uniform process for the “triage” of finite critical care resources. This proposed departure from usual clinical care highlighted the need for an educational tool to prepare physicians for making and communicating difficult triage decisions. We created a just-in-time, virtual, simulation-based curriculum and evaluated its impact for our group of academic Emergency Physicians.MethodsOur curriculum was developed and evaluated following Stufflebeam’s Context-Input-Process–Product model. Our virtual simulation sessions, delivered online using Microsoft Teams, addressed a range of clinical scenarios involving decisions about critical care prioritization (i.e., Triage). Simulation participants completed a pre-course multiple-choice knowledge test and rating scales pertaining to their attitudes about using the Emergency Standard of Care protocol before and 2–4 weeks after participating. Qualitative feedback about the curriculum was solicited through surveys.ResultsNine virtual simulation sessions were delivered over 3 weeks, reaching a total of 47 attending emergency physicians (74% of our active department members). Overall, our intervention led to a 36% (95% CI 22.9–48.3%) improvement in participants’ self-rated comfort and attitudes in navigating triage decisions and communicating with patients at the end of life. Scores on the knowledge test improved by 13% (95% CI 0.4–25.6%). 95% of participants provided highly favorable ratings of the course content and similarly indicated that the session was likely or very likely to change their practice. The curriculum has since been adopted at multiple sites around the province.ConclusionOur novel virtual simulation curriculum facilitated rapid dissemination of the Emergency Standard of Care for Major Surge to our group of Emergency Physicians despite COVID-19-related constraints on gathering. The active learning afforded by this method improved physician confidence and knowledge with these difficult protocols.Supplementary InformationThe online version contains supplementary material available at 10.1007/s43678-022-00280-6.

A framework for critical care triage during a major surge in critical illness

During the COVID-19 pandemic, many jurisdictions experienced surges in demand for critical care that strained or overwhelmed their healthcare system’s ability to respond. A major surge necessitates a deviation from usual practices, including difficult decisions about how to allocate critical care resources. We present a framework to guide these decisions in the hope of saving the most lives as ethically as possible, while concurrently respecting, protecting, and fulfilling legal and human rights obligations. It was developed in Ontario in 2020–2021 through an iterative consultation process with diverse participants, but was adopted in other jurisdictions with some modifications. The framework features three levels of triage depending on the degree of the surge, and a system for prioritizing patients based on their short-term mortality risk following the onset of critical illness. It also includes processes aimed at promoting consistency and fairness across a region where many hospitals are expected to apply the same framework. No triage framework should ever be considered “final,” and there is a need for further research to examine ethical issues related to critical care triage and to increase the extent and quality of evidence to inform critical care triage.

Vaccination

Vaccination

Emergency Medical Response for Non-Hospitalized Person Events in a Children's Hospital.

Hospital-based code blue (CB) teams are designed for hospitalized patients (HP) with unanticipated medical emergencies outside of an ICU. At our freestanding pediatric institution, the same team responds to CB calls involving nonhospitalized persons (NHP) throughout the hospital campus. We hypothesized there are significant differences between the characteristics of NHP and HP requiring emergency medical response, and most responses for NHP do not require advanced critical care. We analyzed a retrospective cohort of CB responses at our large, urban, academic children's medical center from January to December 2017. We evaluated the demographic and clinical characteristics of these HP compared with NHP events. There were 168 CB activations during the study, of which 135 (80.4%) were for NHP. Ninety-one (67.4%) of the NHP responses involved adults (age >18 years) compared with 6 (18.2%) of the HP. Triggers for CB team activation for NHP were most frequently syncope (42.2%), seizure (10.3%), or fall (9.6%) compared with seizure (30.3%), hypoxia (27.3%), or anaphylaxis (12.1%) for HP. Critical interventions such as bag-mask ventilation and cardiopulmonary resuscitation were infrequently performed for either cohort. CB activations in our pediatric institution more often involve NHP than HP. NHP responses are more likely to involve adults and infrequently require advanced interventions. Use of a pediatric CB team for NHP events may be an unnecessary use of pediatric critical care resources. Future studies are warranted to evaluate the most effective team composition, training, and response system for NHP in a freestanding children's hospital.

What if some patients are more \u201cimportant\u201d than others? A possible framework for Covid-19 and other emergency care situations

BackgroundThe Covid-19 pandemic caused situations where, in some hospitals, there were more patients in need of urgent treatment in intensive care units (ICU) than were available. In particular, there were not sufficient ventilators or critical care resources for all patients in danger of dying from respiratory failure or other organ failures.DiscussionAs the “first come, first served” criterion was not considered adequate, more nuanced and fairer clinical criteria were proposed to assess whom to treat first. One type of patients that has not been considered in the literature so far is that of “important patients”, individuals that many people might consider worthy of priority treatment for the contribution they made or might make to society as a whole.SummaryIn this article, we discuss the moral insights behind the possible treatment of “important patients” and suggest a supererogatory solution of voluntary renunciation/withdrawal. Details of the proposal are explained, and potential objections are addressed.

Severe bradycardia from severe hyperkalemia: Patient characteristics, outcomes and factors associated with hemodynamic support

ObjectiveBradycardia is an under-studied manifestation of hyperkalemia potentially associated with adverse outcomes. We sought to systematically describe emergency department (ED) patients that present with severe bradycardia (heart rate < 50) associated with severe hyperkalemia (potassium ≥6.0 mEQ/L) and identify factors associated with the receipt of hemodynamic support. MethodsRetrospective, single-center, case series performed at an urban, tertiary-care hospital from 1/1/2014 to 6/30/2020. We included consecutive adult ED patients presenting simultaneously with severe bradycardia and severe hyperkalemia. Patients with prehospital cardiac arrest, hemolyzed potassium specimens, or only point-of-care lab results were excluded. Detailed information, including chronic medications, electrocardiogram (ECG) features, and potassium/heart rate-directed treatments, was abstracted from the ED medical record. Intensive care utilization and in-hospital outcomes were also recorded. Factors associated with receipt of bradycardia-targeted treatment in the ED were determined with univariate comparisons. ResultsWe screened 319 records and included 87 patients [mean age 72.5 (95% CI 53–92), 55% female, median heart rate 43 (38–47) beats/min, mean potassium 7.1 (95% CI 5.6–8.7) mEQ/L]. Cardiovascular (hypertension 82%, congestive heart failure 28%) and renal (dialysis dependence 30%) comorbidities were common. Many patients were prescribed negative chronotropic agents (84%) or potassium-retaining (52%) chronic medications. Common presenting scenarios were missed hemodialysis, isolated acute renal failure, or acute renal failure in the setting of concomitant critical illness. ECG revealed: junctional rhythm (39%), peaked T waves (27%), and QRS prolongation (30%). Twenty-eight (32%) patients exhibited hypotension and 34 (40%) altered mentation. Thirty-three (38%) patients received hemodynamic support, including 12 (14%) requiring temporary cardiac pacing. Forty-two (48%) patients received emergent renal replacement therapy and 57 (66%) were admitted to the intensive care unit. Hospital mortality was 10%. Factors associated with receipt of hemodynamic-targeted treatment included a lack of dialysis dependence, junctional rhythm, and concomitant presentation with hypothermia, acidemia, or sepsis. ConclusionsPatients presenting with severe bradycardia represent a unique phenotype of ED patients with hyperkalemia that may require significant resuscitation and critical care resources. Further research on the treatment of this uncommon, but potentially life-threatening condition is needed.

Hyperbaric Oxygen: A Lifesaver During COVID-19?

Coronavirus (COVID-19) has become a worldwide pandemic after its emergence in late December 2019. The virus has evolved through mutations such as alpha, beta, gamma, delta, and epsilon variants. The one becoming variant, becomes precarious. COVID virus spiked a surge in hospitalizations and equipment utilization, as well as a scarcity of critical care resources. The precautionary measures, such as the use of masks and hand sanitizers, are advised to contain the virus.

COVID-19 Variants of Concern: An Analysis of Critical Care Admission in Hospitalized Patients in a Canadian Health Region

PurposeTo examine outcomes in COVID-19 positive acute care patients and the differential impact of the presence of COVID-19 Variants of Concern (VOCs).Methods & MaterialsThis study was a cross-sectional analysis using patient data from the patient's electronic medical records. Inclusion criteria were COVID-19-positive patients hospitalized within acute care sites in Fraser Health (British Columbia) between January 1 and April 30, 2021. Data analysis was conducted using SAS Studio 3.8 and STATA 17.0.ResultsOf the patients included in the study, 934 (33%) were classified as having a VOC. The proportion of VOC-related COVID-19 cases steadily increased from 0.6% of all COVID-19 admissions in January 2021 to 67.2% in April 2021. Males were more likely to have VOCs than females (36% vs. 30%). The age groups with the highest proportion of VOCs were 40-49 (51%), 50-59 (44%), and 60-69 (40%). After controlling for sex and age, it was shown that patients with VOCs were more than twice as likely to require critical care admission than those without VOCs (OR=2.04, 95%CI:1.67, 2.48; p<0.001). There was no statistically significant difference in overall length of stay (p=0.502) or length of stay in critical care (p=0.237) for those with VOCs after controlling for age and sex. While patients with VOCs were more than twice as likely to require critical care, there was no difference in mortality (OR=1.03, 95%CI:0.75,1.41), p=0.877).ConclusionVOCs were more likely to be present in middle-aged hospitalized patients than in older patients, and were more prevalent in males. Patients with VOCs were more likely to require critical care; however, there was no difference in length of stay in critical care, or in overall mortality. This is important to understand, as VOCs make up a larger proportion of COVID-19 cases, and will likely place significant burden on critical care resources. Limitations of this study are that other factors such as co-morbidities and socioeconomic status have not been controlled for, and the findings may not be generalizable to other health regions with different populations and health care systems. This study provides groundwork for future research on this evolving topic.

Critical Care in Obstetrics: A Strategy for Addressing Maternal Mortality

(Am J Obstet Gynecol. 2021;224:567–573) Given a 200% increase from 1993 to 2014 of severe maternal morbidity, it is imperative to look for mechanisms to decrease risk and possible associated maternal deaths. For the estimated 1 to 3 percent of all obstetrical patients who require intensive care unit (ICU) level care, best outcomes are achieved when a collaborative care model utilizing intensivists and maternal fetal medicine (MFM) specialists is possible. However, with an increasingly more complicated obstetrical population and no concomitant rise in MFM specialists there is an important role for broadening the skill sets for health care providers and resources for facilities that are lacking in advanced care. The authors suggest that using evidence-based tools for patient risk stratification, rapid diagnosis of life-threatening conditions, access to consultation by critical care specialists and better education regarding critical care for all obstetrical providers would lead to less maternal morbidity and mortality. The focus of the authors’ clinical opinion was to evaluate the best screening tools for high risk obstetrical patients as well as advocating for more critical care resource accessibility on Labor and Delivery.

Adding a Correction Factor to the Allocation of Scarce Life-saving Resources in a Pandemic

Adding a Correction Factor to the Allocation of Scarce Life-saving Resources in a Pandemic

Perceptions of Critical Care Shortages, Resource Use, and Provider Well-being During the COVID-19 Pandemic: A Survey of 1,985 Health Care Providers in Brazil

BackgroundBrazil has been disproportionately affected by COVID-19, placing a high burden on ICUs.Research QuestionAre perceptions of ICU resource availability associated with end-of-life decisions and burnout among health care providers (HCPs) during COVID-19 surges in Brazil?Study Design and MethodsWe electronically administered a survey to multidisciplinary ICU HCPs during two 2-week periods (in June 2020 and March 2021) coinciding with COVID-19 surges. We examined responses across geographical regions and performed multivariate regressions to explore factors associated with reports of: (1) families being allowed less input in decisions about maintaining life-sustaining treatments for patients with COVID-19 and (2) emotional distress and burnout.ResultsWe included 1,985 respondents (57% physicians, 14% nurses, 12% respiratory therapists, 16% other HCPs). More respondents reported shortages during the second surge compared with the first (P < .05 for all comparisons), including lower availability of intensivists (66% vs 42%), ICU nurses (53% vs 36%), ICU beds (68% vs 22%), and ventilators for patients with COVID-19 (80% vs 70%); shortages were highest in the North. One-quarter of HCPs reported that families were allowed less input in decisions about maintaining life-sustaining treatments for patients with COVID-19, which was associated with lack of intensivists (adjusted relative risk [aRR], 1.37; 95% CI, 1.05-1.80) and ICU beds (aRR, 1.71; 95% CI, 1.16-2.62) during the first surge and lack of N95 masks (aRR, 1.43; 95% CI, 1.10-1.85), noninvasive positive pressure ventilation (aRR, 1.56; 95% CI, 1.18-2.07), and oxygen concentrators (aRR, 1.50; 95% CI, 1.13-2.00) during the second surge. Burnout was higher during the second surge (60% vs 71%; P < .001), associated with witnessing colleagues at one’s hospital contract COVID-19 during both surges (aRR, 1.55 [95% CI, 1.25-1.93] and 1.31 [95% CI, 1.11-1.55], respectively), as well as worries about finances (aRR, 1.28; 95% CI, 1.02-1.61) and lack of ICU nurses (aRR, 1.25; 95% CI, 1.02-1.53) during the first surge.InterpretationDuring the COVID-19 pandemic, ICU HCPs in Brazil experienced substantial resource shortages, health care disparities between regions, changes in end-of-life care associated with resource shortages, and high proportions of burnout.

Life-threatening infections during treatment for acute lymphoblastic leukemia on the Malaysia-Singapore 2003 and 2010 clinical trials: A risk prediction model.

Life-threatening infections significantly impact the care of children undergoing therapy for acute lymphoblastic leukemia (ALL) who are at risk of severe sepsis due to both host and treatment factors. Our aim was to develop a life-threatening infection risk prediction model that would allow remote rapid triage of patients to reduce time to first dose of antibiotics and sepsis-related mortality. A retrospective analysis of 2068 fever episodes during ALL therapy was used for model building and subsequent internal validation. Three hundred and seventy-seven patients were treated for ALL in two institutions with comparable critical and supportive care resources. A total of 55 patients accounted for 71 admissions to the critical care unit for sepsis that led to eight septic deaths during a 16-year study period. A retrospective analysis of risk factors for sepsis enabled us to build a model focused on 13 variables that discriminated admissions requiring critical care well: area under the receiver operating characteristic curve of .82; 95% CI .76-.87, p<.001, and Brier score of .033. Significant univariate predictors included neutropenia, presence of symptoms of abdominal pain, diarrhea, fever during induction or steroid-based phases, and the lack of any localizing source of infection at time of presentation. We have developed a risk prediction model that can reliably identify ALL patients undergoing treatment who are at a higher risk of life-threatening sepsis. Clinical applicability can potentially be extended to low-middle income settings, and its utility should be further studied in real-world settings.

Allocation of scarce critical care resources during public health emergencies: which ethical principles support decision making.

To investigate whether and how ten ethical principles are mentioned within documents on critical care resources allocation during public health emergencies. We conducted a search of documents con-cerning critical resources allocation during public emergencies publicly available from Google and two specific international websites, up to November 2020. Each document was analyzed by two independent reviewers to assess whether a reference to any of the 10 key ethical principles indicated by the Northern Italy Ethical Committee could be found in the documents. Cohen's K statistic was used. We obtained 34 documents, of which 19 were allocation frameworks, 15 crisis standards of care, 4 clinical triage protocol, 3 clinical guidelines and 2 public health emergency response plans. The principles most frequently mentioned as important for decision-making was "number of lives saved", followed by "transparency", "equity", "respect of person and their autonomy". The most cited tiebreakers were "younger first/life cycle" and "lottery". All documents aim to protect the life and health of the largest number of people and should be objective, ethical, transparent, applied equitably, and be publicly disclosed. It is plausible that short- and long-term prognostic tools can help allocate critical resources, but it remains strong that the decision-making process must be guided by a multi-principle ethical model that is not always easy to apply.