Deborah Cook

PurposeThe ordering of routine blood test panels in advance is common in intensive care units (ICUs), with limited consideration of the pretest probability of finding abnormalities. This practice contributes to anemia, false positive results, and health care costs. We sought to understand practices and attitudes of Canadian adult intensivists regarding ordering of blood tests in critically ill patients.MethodsWe conducted a nationwide Canadian cross-sectional survey consisting of 15 questions assessing three domains (global perceptions, test ordering, daily practice), plus 11 demographic questions. The target sample was one intensivist per adult ICU in Canada. We summarized responses using descriptive statistics and present data as mean with standard deviation (SD) or count with percentage as appropriate.ResultsOver seven months, 80/131 (61%) physicians responded from 77 ICUs, 50% of which were from …

RATIONALE In acute respiratory distress syndrome (ARDS), respiratory drive often differs among patients with similar clinical characteristics. Readily observable factors like acid-base state, oxygenation, mechanics, and sedation depth do not fully explain drive heterogeneity. This study sought to evaluate the relationship of systemic inflammation with respiratory drive and clinical outcomes in patients with ARDS. METHODS Patients enrolled in the multicenter EPVent-2 trial (NCT01681225) were evaluated for inclusion in this sub-study. Eligibility criteria for the parent trial include patients aged> 16 years and undergoing invasive ventilation for early moderate or severe ARDS (PaO2/FiO2≤ 200 mm Hg). Trial participants were excluded from sub-study if esophageal pressure waveform recordings were unavailable for analysis at baseline or within one hour of enrollment, the period of interest for this analysis …

Objetivo: Não está claro qual é a meta ideal de concentração de glicose no sangue em pacientes em estado grave. Realizaremos uma revisão sistemática e uma metanálise com dados agregados e de pacientes individuais de estudos controlados e randomizados, comparando o controle intensivo da glicose com o controle liberal da glicose em adultos em estado grave.

Objectives Although death is not uncommon for hospitalised patients with cancer, there are few interventions in oncology that are designed to create a dignified, compassionate end-of-life (EOL) experience for patients and families. The 3 Wishes Project (3WP), a programme in which clinicians elicit and implement final wishes for dying patients, has been shown effective in intensive care units (ICUs) at improving the EOL experience. The objective was to initiate 3WP on an oncology ward and evaluate its effect on family member experiences of their loved one’s EOL. We hypothesised that the 3WP can be implemented in the non-ICU setting and help oncological patients and their families with transition to the EOL.Methods When the patient’s probability of dying is greater than 95%, patients and families were invited to participate in the 3WP. Wishes were elicited, implemented and categorised. Audiorecorded …

BackgroundIn acute respiratory distress syndrome (ARDS), respiratory drive often differs among patients with similar clinical characteristics. Readily observable factors like acid–base state, oxygenation, mechanics, and sedation depth do not fully explain drive heterogeneity. This study evaluated the relationship of systemic inflammation and vascular permeability markers with respiratory drive and clinical outcomes in ARDS.MethodsARDS patients enrolled in the multicenter EPVent-2 trial with requisite data and plasma biomarkers were included. Neuromuscular blockade recipients were excluded. Respiratory drive was measured as P ES 0.1, the change in esophageal pressure during the first 0.1 s of inspiratory effort. Plasma angiopoietin-2, interleukin-6, and interleukin-8 were measured concomitantly, and 60-day clinical outcomes evaluated.Results54.8% of 124 included patients had detectable respiratory drive …

Objective The Word Cloud is a frequent wish in the 3 Wishes Project developed to nurture peace and ease the grieving process for dying critically ill patients. The objective was to examine whether Word Clouds can act as a heuristic approach to encourage a narrative orientation to medicine. Narrative medicine is an approach which can strengthen relationships, compassion and resilience.Design Word Clouds were created for 42 dying patients, and we interviewed 37 family members and 73 clinicians about their impact. We conducted a directed qualitative content analysis, using the 3 stages of narrative medicine (attention, representation, affiliation) to examine the narrative medicine potential of Word Clouds.Results The elicitation of stories for the Word Cloud promotes narrative attention to the patient as a whole person. The distillation of these stories into a list of words and the prioritisation of those words for …

Background Proton pump inhibitors (PPIs) are the most commonly prescribed drugs for preventing upper gastrointestinal bleeding in critically ill patients. However, concerns have arisen about the possible harms of using PPIs, including potentially increased risk of pneumonia, Clostridioides difficile infection, and more seriously, an increased risk of death in the most severely ill patients. Triggered by the REVISE trial, which is a forthcoming large randomized trial comparing pantoprazole to placebo in invasively mechanically ventilated patients, we will conduct this systematic review to evaluate the efficacy and safety of PPIs versus no prophylaxis for critically ill patients. Methods We will systematically search randomized trials that compared gastrointestinal bleeding prophylaxis with PPIs versus placebo or no prophylaxis in adults in the intensive care unit (ICU). Pairs of reviewers will independently screen the …

ImportanceAlthough major bleeding is among the most common and prognostically important perioperative complications, the relative timing of bleeding events is not well established. This information is critical for preventing bleeding complications and for informing the timing of pharmacologic thromboprophylaxis.ObjectiveTo determine the timing of postoperative bleeding among patients undergoing surgery for up to 30 days after surgery.Design, Setting, and ParticipantsThis is a secondary analysis of a prospective cohort study. Patients aged 45 years or older who underwent inpatient noncardiac surgery were recruited in 14 countries between 2007 and 2013, with follow-up until December 2014. Data analysis was performed from June to July 2023.ExposureNoncardiac surgery requiring overnight hospital admission.Main Outcomes and MeasuresThe primary outcome (postoperative major bleeding) was a …

IntroductionThe objective of this study was to create a definition of patient-important upper gastrointestinal bleeding during critical illness as an outcome for a randomized trial.DesignThis was a sequential mixed-methods qualitative-dominant multi-center study with an instrument-building aim. In semi-structured individual interviews or focus groups we elicited views from survivors of critical illness and family members of patients in the intensive care unit (ICU) regarding which features indicate important gastrointestinal bleeding. Quantitative demographic characteristics were collected. We analyzed qualitative data using inductive content analysis to develop a definition for patient-important upper gastrointestinal bleeding.SettingCanada and the United States.Participants51 ICU survivors and family members of ICU patients.ResultsParticipants considered gastrointestinal bleeding to be important if it resulted in death …

Objective:To evaluate the impact of direct discharge home (DDH) from ICUs compared with ward transfer on safety outcomes of readmissions, emergency department (ED) visits, and mortality.Data Sources:We searched MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, and Cumulative Index to Nursing and Allied Health Literature from inception until March 28, 2022.Study Selection:Randomized and nonrandomized studies of DDH patients compared with ward transfer were eligible.Data Extraction:We screened and extracted studies independently and in duplicate. We assessed risk of bias using the Newcastle-Ottawa Scale for observational studies. A random-effects meta-analysis model and heterogeneity assessment was performed using pooled data (inverse variance) for propensity-matched and unadjusted cohorts. We assessed the overall certainty of evidence for each outcome using the …

PurposeThe aim of this study was to characterize differences in directives to limit treatments and discontinue invasive mechanical ventilation (IMV) in elderly (65–80 years) and very elderly (> 80 years) intensive care unit (ICU) patients.MethodsWe prospectively described new written orders to limit treatments, IMV discontinuation strategies [direct extubation, direct tracheostomy, spontaneous breathing trial (SBT), noninvasive ventilation (NIV) use], and associations between initial failed SBT and outcomes in 142 ICUs from 6 regions (Canada, India, United Kingdom, Europe, Australia/New Zealand, United States).ResultsWe evaluated 788 (586 elderly; 202 very elderly) patients. Very elderly (vs. elderly) patients had similar withdrawal orders but significantly more withholding orders, especially cardiopulmonary resuscitation and dialysis, after ICU admission [67 (33.2%) vs. 128 (21.9%); p = 0.002]. Orders to …

Objective The optimal target for blood glucose concentration in critically ill patients is unclear. We will perform a systematic review and meta-analysis with aggregated and individual patient data from randomized controlled trials, comparing intensive glucose control with liberal glucose control in critically ill adults. Data sources MEDLINE®, Embase, the Cochrane Central Register of Clinical Trials, and clinical trials registries (World Health Organization, clinical trials.gov). The authors of eligible trials will be invited to provide individual patient data. Published trial-level data from eligible trials that are not at high risk of bias will be included in an aggregated data meta-analysis if individual patient data are not available. Methods Inclusion criteria: randomized controlled trials that recruited adult patients, targeting a blood glucose of ≤ 120mg/dL (≤ 6.6mmol/L) compared to a higher blood glucose concentration target using intravenous insulin in both groups. Excluded studies: those with an upper limit blood glucose target in the intervention group of > 120mg/dL (> 6.6mmol/L), or where intensive glucose control was only performed in the intraoperative period, and those where loss to follow-up exceeded 10% by hospital discharge. Primary endpoint In-hospital mortality during index hospital admission. Secondary endpoints: mortality and survival at other timepoints, duration of invasive mechanical ventilation, vasoactive agents, and renal replacement therapy. A random effect Bayesian meta-analysis and hierarchical Bayesian models for individual patient data will be used …

BackgroundMoral distress is a serious problem for health care personnel. Surveys, individual interviews, and focus groups may not capture all of the effects of, and responses to, moral distress. Therefore, we used a new participatory action research approach—moral conflict assessment (MCA)—to characterize moral distress and to facilitate the development of interventions for this problem.AimTo characterize moral distress by analyzing responses of intensive care unit (ICU) personnel who participated in the MCA process.Research DesignIn this qualitative study, we invited all ICU personnel at 3 urban hospitals to participate in individual or group sessions using the 8-step MCA tool. These sessions were facilitated by either a clinical ethicist or a counseling psychologist who was trained in this process. During each session, one of the researchers took notes and prepared a report for each MCA which were analyzed …

Sa1106 CLOSTRIDIODES DIFFICILE INFECTION IN MECHANICALLY VENTILATED CRITICALLY ILL PATIENTS: A NESTED COHORT STUDY Joanna C. Dionne, Jennie Johnstone, Diane Heels-Ansdell, Erick H. Duan, Francois Lauzier, Yaseen Arabi, Neill K. Adhikari, Wendy I. Sligl, Peter Dodek, Bram N. Rochwerg, John C. Marshall, Daniel J. Niven, David R. Williamson, Steven Reynolds, Nicole Zytaruk, Deborah J. Cook Abstract Introduction: Clostridioides difficile infection (CDI) is a potentially serious complica-tion of critical illness. The objective of the study was to determine its incidence, prevalence, timing, severity, predictors, and impact among mechanically ventilated patients admitted to the intensive care unit (ICU). Methods: In mechanically ventilated patients, we performed a prospective nested cohort study of CDI within a randomized trial comparing Lactobacillus rhamnosus GG to placebo (PROSPECT …

Purpose The helmet is a novel interface for delivering non-invasive ventilation (NIV). We conducted a case series to characterize introduction of the helmet interface in both COVID and non-COVID patients at two-centres. Methods We enrolled all patients with respiratory failure admitted to the Juravinski Hospital (Hamilton, Canada) and St. Joseph’s Health Center (Syracuse, New York) between November 1, 2020 and June 30, 2021 who used the helmet interface (Intersurgical StarMed) as part of this introduction into clinical practice. We collected patient demographics, reason for respiratory failure, NIV settings, device-related complications and outcomes. We report respiratory therapist’s initial experiences with the helmet using descriptive results. Results We included 16 patients with a mean age of 64.3 ± 10.9 years. The most common etiology for respiratory failure was pneumonia (81.3%). The median duration of NIV during the ICU admission was 67.5 (15.3, 80.8) hours, with a mean maximum PS of 13.9 ± 6.6 cm H2O and a mean maximum PEEP of 10.4 ± 5.1 cm H20. Three patients (18.7%) did not tolerate the helmet. Ten (62.5%) patients ultimately required intubation, and 7 (43.4%) patients died while in the ICU. The most common reason for intubation was worsening hypoxia (70%). No adverse events related to the helmet were recorded. Conclusion Over the 8-month period of this study, we found that the helmet was well tolerated in over 80% of patients, although, more than half ultimately required intubation. Randomized controlled trials with this device are required to fully assess the efficacy of this interface.

BackgroundCritically ill patients commonly receive proton pump inhibitors (PPIs) to prevent gastrointestinal (GI) bleeding from stress-induced ulceration. Despite widespread use in the intensive care unit (ICU), observational data suggest that PPIs may be associated with adverse outcomes in patients with COVID-19 infection. This preplanned study is nested within a large randomized trial evaluating pantoprazole versus placebo in invasively ventilated patients. The 3 objectives are as follows: (1) to describe the characteristics of patients with COVID-19 in terms of demographics, biomarkers, venous thromboembolism, tracheostomy incidence and timing, and other clinical outcomes; (2) to evaluate the impact of COVID-19 infection on clinically important GI bleeding, 90-day mortality, and other outcomes compared to a propensity-matched non-infected cohort; and (3) to explore whether pantoprazole has a differential …

BackgroundThe end-of-life (EOL) experience in the intensive care unit (ICU) is emotionally challenging, and there are opportunities for improvement. The 3 Wishes Program (3WP) promotes the dignity of dying patients and their families by eliciting and implementing wishes at the EOL.AimTo assess whether the 3WP is associated with improved ratings of EOL care.Program DescriptionIn the 3WP, clinicians elicit and fulfill simple wishes for dying patients and their families.Setting2-hospital academic healthcare system.ParticipantsDying patients in the ICU and their families.Program EvaluationA modified Bereaved Family Survey (BFS), a validated tool for measuring EOL care quality, was completed by families of ICU decedents approximately 3 months after death. We compared patients whose care involved the 3WP to those who did not using three BFS–derived measures: Respectful Care and Communication (5 …

ImportanceThe efficacy of vitamin C for hospitalized patients with COVID-19 is uncertain.ObjectiveTo determine whether vitamin C improves outcomes for patients with COVID-19.Design, Setting, and ParticipantsTwo prospectively harmonized randomized clinical trials enrolled critically ill patients receiving organ support in intensive care units (90 sites) and patients who were not critically ill (40 sites) between July 23, 2020, and July 15, 2022, on 4 continents.InterventionsPatients were randomized to receive vitamin C administered intravenously or control (placebo or no vitamin C) every 6 hours for 96 hours (maximum of 16 doses).Main Outcomes and MeasuresThe primary outcome was a composite of organ support–free days defined as days alive and free of respiratory and cardiovascular organ support in the intensive care unit up to day 21 and survival to hospital discharge. Values ranged from –1 organ support …

ObjectivesNormal saline (NS) and Ringer’s lactate (RL) are the most common crystalloids used for fluid therapy. Despite evidence of possible harm associated with NS (eg, hyperchloremic metabolic acidosis, impaired kidney function and death), few large multi-centre randomised trials have evaluated the effect of these fluids on clinically important outcomes. We conducted a pilot trial to explore the feasibility of a large trial powered for clinically important outcomes.DesignFLUID was a pragmatic pilot cluster randomised cross-over trial.SettingFour hospitals in the province of Ontario, CanadaParticipantsAll hospitalised adult and paediatric patients with an incident admission to the hospital over the course of each study period.InterventionsA hospital wide policy/strategy which stocked either NS or RL throughout the hospital for 12 weeks before crossing over to the alternate fluid for the subsequent 12 weeks.Primary …

AimInfants and children who require specialized medical attention are admitted to neonatal and pediatric intensive care units (ICUs) for continuous and closely supervised care. Overnight in-house physician coverage is frequently considered the ideal staffing model. It remains unclear how often this is achieved in both pediatric and neonatal ICUs in Canada. The aim of this study is to describe overnight in-house physician staffing in Canadian pediatric and level-3 neonatal ICUs (NICUs) in the pre-COVID-19 era.MethodsA national cross-sectional survey was conducted in 34 NICUs and 19 pediatric ICUs (PICUs). ICU directors or their delegates completed a 29-question survey describing overnight staffing by resident physicians, fellow physicians, nurse practitioners, and attending physicians. A comparative analysis was conducted between ICUs with and without in-house physicians.ResultsWe obtained responses …