Management of delirium in a medical and surgical intensive care unit.

WHAT IS KNOWN AND OBJECTIVE: Delirium has been associated with increased mortality and prolonged hospital length of stay among critical care patients. Furthermore, treatment of delirium remains variable amongst clinicians due to limited evidence. The objective of this study was to determine the local incidence of delirium and to characterize the effectiveness and safety of pharmacological therapy used to treat delirium. METHODS: A retrospective chart review evaluated patients diagnosed with delirium (Intensive Care Delirium Screening Checklist score ≥4) and requiring mechanical ventilation for ≥48 hours from January 2016 to June 2017. The primary outcomes included comparison of resolution, the time to first resolution and recurrence of delirium in patients prescribed pharmacological and/or pre-emptive therapy versus those who did not. Secondary outcomes included incidence of adverse effects of drug therapy and delirium attributable adverse events. RESULTS AND DISCUSSION: The incidence of delirium during our defined study period was 49%. Of the 178 patients included in the study, 136 (76%) received drug therapy for delirium. Agents used for treatment of delirium included dexmedetomidine (n = 90 [66%]), haloperidol (n = 77 [57%]), and quetiapine (n = 74 [54%]). Resolution of delirium occurred in 94 (52%) of patients and the difference was statistically significant favoring patients who did not receive pharmacological therapy. There was no difference in the median time to resolution of delirium (3 days) for patients who received pharmacological and/or pre-emptive therapy versus those who did not. Bradycardia and hypotension were the most frequently documented medication-related adverse events. Self-removal of an invasive line/catheter, was reported in 36 (26%) patients despite receiving pharmacological treatment. WHAT IS NEW AND CONCLUSION: Despite unclear evidence that pharmacological interventions help with delirium management, the majority of our patients received such interventions. To improve patient outcomes, we should shift focus towards non-pharmacological interventions for delirium.

Health-related expectations of the chronically critically ill: a multi-perspective qualitative study.

BACKGROUND: Those who survive critical illness only to become chronically critically ill (CCI) experience a high symptom burden, repeat episodes of illness exacerbation, communication barriers, and poor health outcomes. Yet, it is unclear how CCI individuals and their family understand their health and the importance of prognostic information following hospitalization. The research purpose was to examine expectations about health and disease prognosis of CCI residents in long-term care from the perspectives of the CCI themselves and their family members, as well as to describe healthcare provider (HCP) interpretations of, and reactions to, these health-related expectations. METHODS: In this qualitative interpretive descriptive study, conducted in British Columbia, Canada, 38 semi-structured interviews were conducted (6 CCI residents, 11 family members, and 21 HCPs) and inductively analyzed using thematic and constant comparative techniques. RESULTS: There was divergence in CCI resident, family and HCP expectations about health and the importance of disease prognosis, which contributed to conflict. CCI residents and family viewed conflict with HCPs in relation to their day-to-day care needs, while HCPs viewed this as arising from the unrealistically high expectations of residents and family. The CCI residents and family focussed on the importance of maintaining hope, and the HCPs highlighted the complexity of end-of-life decisions in conjunction with the high expectations and hopes of family. CONCLUSIONS: The emotional and ongoing process of formulating health-related expectations points to the need for future research to inform the development and/or adapting of existing communication, psychosocial and health services interventions to ease the burden experienced by those who are CCI.

Sources of Distress for Residents With Chronic Critical Illness and Ventilator Dependence in Long-Term Care.

Limited understanding of the psychological challenges experienced by individuals with chronic critical illness hampers efforts to deliver quality care. We used an interpretive description approach to explore sources of distress for individuals with chronic critical illness in residential care, wherein we interviewed six residents, 11 family members, and 21 staff. Rather than discuss physical symptoms, sources of distress for residents were connected to feeling as though they were a patient receiving medical care as opposed to an individual living in their home. The tension between medical care and the unmet need for a sense of home was related to care beyond the physical being overlooked, being dependent on others but feeling neglected, frustration with limited choice and participation in decision making, and feeling sad and alone. Efforts to refine health care for individuals with chronic critical illness must foster a sense of home while ensuring individuals feel safe and supported to make decisions.

How the high acuity unit changes mortality in the intensive care unit: a retrospective before-and-after study.

PURPOSE: High acuity units (HAU) are hospital units that provide patients with more acute care and closer monitoring than a general hospital ward but are not as resource intensive as an intensive care unit (ICU). Nevertheless, the impact of opening a HAU on ICU patient outcomes remains poorly defined. We investigated how the creation of a HAU impacted patient outcomes in the ICU. METHODS: This historical cohort study compared ICU patient in-hospital mortality, ICU length of stay (LOS), and hospital LOS before and after the creation of a HAU in a tertiary-care hospital with a medical/surgical ICU between 1 January 2013 and 31 December 2017. RESULTS: Data from 4,380 patients (984 in the pre-HAU group and 3,396 in the post-HAU group) were analyzed. In this cohort of ICU patients, 360 (37%) died in the pre-HAU group before the creation of a HAU, and 1,074 (32%) died in the post-HAU group after the creation of a HAU. The creation of a HAU was associated with lower relative risk of in-hospital mortality (adjusted risk ratio, 0.80; 95% confidence interval [CI], 0.72 to 0.89; P < 0.001). The creation of a HAU was also associated with reduced ICU and hospital LOS with a 12% increase in the rate of ICU discharge (adjusted sub-distribution hazard ratio [SHR], 1.12; 95% CI, 1.02 to 1.23; P = 0.02) and a 26% increase in the rate of hospital discharge (adjusted SHR, 1.26; 95% CI, 1.14 to 1.39; P < 0.001), when accounting for the competing risk of death. CONCLUSIONS: These data support the hypothesis that the creation of a HAU may be associated with reduced in-hospital mortality, ICU LOS, and hospital LOS for ICU patients.

RéSUMé: OBJECTIF: Les unités de soins intermédiaires sont des départements hospitaliers qui prodiguent des soins plus aigus et un monitorage plus serré aux patients qu'une unité générale, mais qui ne nécessitent pas autant de ressources qu'une unité de soins intensifs (USI). L'impact de l'ouverture d'une unité de soins intermédiaires sur les devenirs des patients à l'USI n'a pourtant été que peu décrit. Nous avons exploré la façon dont la création d'une unité de soins intermédiaires a eu un impact sur les devenirs des patients à l'USI. MéTHODE: Cette étude de cohorte historique a comparé la mortalité hospitalière, la durée de séjour à l'USI et la durée de séjour hospitalier des patients à l'USI avant et après la création d'une unité de soins intermédiaires dans un hôpital de soins tertiaires disposant d'une USI médicale/chirurgicale entre le 1er janvier 2013 et le 31 décembre 2017. RéSULTATS: Les données de 4380 patients (984 dans le groupe pré unité de soins intermédiaires et 3396 dans le groupe post unité de soins intermédiaires) ont été analysées. Dans cette cohorte de patients de l'USI, 360 (37 %) sont décédés avant la création de l'unité de soins intermédiaires, et 1074 (32 %) sont décédés après. La création d'une unité de soins intermédiaires a été associée à un risque relatif plus faible de mortalité hospitalière (risque relatif ajusté, 0,80; intervalle de confiance [IC] 95 %, 0,72 à 0,89; P < 0,001). La création d'une unité de soins intermédiaires a également été associée à une durée de séjour réduite à l'USI et à l'hôpital, avec une augmentation de 12 % du taux de congé de l'USI (rapport de risque ajusté [RRA], 1,12; IC 95 %, 1,02 à 1,23; P = 0,02) et une augmentation de 26 % du taux de congé de l'hôpital (RRA, 1,26; IC 95 %, 1,14 à 1,39; P < 0,001), en tenant compte du risque concurrent de décès. CONCLUSION: Ces données appuient l'hypothèse que la création d'une unité de soins intermédiaires pourrait être associée à une réduction de la mortalité hospitalière, de la durée de séjour à l'USI et de la durée de séjour à l'hôpital pour les patients de l'USI.

When chronic critical illness is a family affair: A multi-perspective qualitative study of family involvement in long-term care.

OBJECTIVE: Those with chronic critical illness (CCI) remain dependent on life-sustaining treatments and increasingly reside in long-term care facilities equipped to meet their needs. The nature of family involvement in care remains undetermined thwarting approaches to mitigate poor family outcomes. The research objective was to explicate family involvement in the care of an individual with CCI who resides in long-term care. METHODS: In this qualitative research, we used thematic analysis and constant comparative techniques to analyze data from interviews with 38 participants: 11 family members, 6 residents with CCI, and 21 healthcare providers. RESULTS: Involvement in care entailed family: (1) reorienting their life despite the stress and emotional toll; (2) assuming responsibility for meaningful activities and management of practical matters, yet struggling alone; (3) advocating for care by being present, reminding and pushing, and picking their battles; and (4) figuring out how to contribute to nursing care, but with unclear expectations. DISCUSSION: The burden of family caregiving was substantial, contrasting the assumption that family are relieved of their caregiver responsibilities when the patient with CCI is in a care facility. Research to address unmet family needs specific to their roles and responsibilities could potentially improve family outcomes and is warranted.

Attending to Methodological Challenges in Qualitative Research to Foster Participation of Individuals with Chronic Critical Illness and Communication Impairments.

Individuals with chronic critical illness experience multiple complex physiological disturbances including ongoing respiratory failure, requiring prolonged mechanical ventilation, and thus communication impairments. In conducting a qualitative interpretive description study, we sought to ensure that individuals with chronic critical illness themselves were included as participants. Our commitment to recruiting these individuals to the study and ensuring their data meaningfully informed the analysis and findings required us to reconsider and challenge some of the traditional notions of high-quality qualitative research and develop appropriate practical strategies. These strategies included: (1) centering participant abilities and preferences, (2) adopting a flexible approach to conducting interviews, (3) engaging in a therapeutic relationship, and (4) valuing "thin" data. In this article, we extend existing literature describing the complexities of conducting research with individuals with communication impairments and strategies to consider in the hopes of informing future research with other populations historically excluded from study participation.

The effect of COVID-19 pandemic on the mental health of Canadian critical care nurses providing patient care during the early phase pandemic: A mixed method study.

BACKGROUND: Healthcare workers have historically experienced symptoms of post-traumatic stress disorder, depression and anxiety with previous infectious outbreaks. It is unknown if critical care nurses have similar experiences. OBJECTIVES: The study aimed to examine the mental health of Critical Care Registered Nurses providing direct patient care during the initial phase of the COVID-19 pandemic in Canada. DESIGN: This was a convergent parallel mixed method study utilizing validated questionnaires and semi-structured qualitative interviews. SETTING: Critical care units in a single large 650 bed academic teaching hospital in western Canada. The critical care units serve a general mixed medical - surgical adult patient population. PARTICIPANTS: Critical Care Registered Nurses providing direct patient care in the intensive care and high acuity units at the designated site. METHODS: 109 participants completed two self-reported validated surveys, the Impact of Events Scale - Revised and the Depression, Anxiety and Stress Scale. 15 participants completed one-on-one semi-structured interviews that were analyzed using inductive thematic analysis. RESULTS: In the surveys, the participants reported clinical concern for (23%), probable (13%) and significant (38%) symptoms of post-traumatic stress disorder, as well as mild to severe depression (57%), anxiety (67%) and stress (54%). In the interviews, psychological distress was described as anxiety, worry, distress and fear related to: 1) rapidly changing policy and information, 2) overwhelming and unclear communication, 3) meeting patient care needs in new ways while staying safe, and 4) managing home and personal commitments to self and family. CONCLUSIONS: Critical care nurses experienced psychological distress associated with providing care to COVID-19 patients during the early phases of the pandemic.

Prone Position after Liberation from Prolonged Mechanical Ventilation in COVID-19 Respiratory Failure.

DESIGN: This is a retrospective case series describing the feasibility and tolerability of postextubation prone positioning (PEPP) and its impact on physiologic parameters in a tertiary intensive care unit during the COVID-19 pandemic. Setting and Patients. This study was conducted on patients with COVID-19 respiratory failure hospitalized in a tertiary Intensive Care Unit at Surrey Memorial Hospital during the COVID-19 pandemic. Measurements and Results. We did not find prior reports of PEPP following prolonged intubation in the literature. Four patients underwent a total of 13 PEPP sessions following liberation from prolonged mechanical ventilation. Each patient underwent a median of 3 prone sessions (IQR: 2, 4.25) lasting a median of 1.5 hours (IQR: 1.2, 2.1). PEPP sessions were associated with a reduction in median oxygen requirements, patient respiratory rate, and reintubation rate. The sessions were well tolerated by patients, nursing, and the allied health team. CONCLUSIONS: The novel practice of PEPP after liberation from prolonged mechanical ventilation in patients with COVID-19 respiratory failure is feasible and well tolerated, and may be associated with favourable clinical outcomes including improvement in oxygenation and respiratory rate and a low rate of reintubation. Larger prospective studies of PEPP are warranted.

The erythropoietin neuroprotective effect: assessment in CABG surgery (TENPEAKS): a randomized, double-blind, placebo controlled, proof-of-concept clinical trial.

BACKGROUND AND PURPOSE: Neurocognitive dysfunction complicates coronary artery bypass surgery. Erythropoietin may be neuroprotective. We sought to determine whether human recombinant erythropoietin would reduce the incidence of neurocognitive dysfunction after surgery. METHODS: We randomly assigned 32 elective first-time coronary artery bypass graft patients to receive placebo or 375 U/kg, 750 U/kg, or 1500 U/kg of recombinant human erythropoietin divided in 3 daily doses, starting the day before surgery. Primary outcomes were feasibility and safety, and secondary outcomes were neurocognitive dysfunction at discharge and 2 months. RESULTS: All subjects were male, mean age 60 years (range 46 to 73). No significant differences were found in pump time, cross-clamp time, or hospital length of stay. Mortality and pure red cell aplasia were not observed. One patient in the 375 U/kg group had ST changes compatible with myocardial injury immediately postoperative, but no other thrombotic complications were observed. Neurocognitive dysfunction occurred in 21/32 (66%) of patients at discharge and 5/32 (16%) at 2 months. Neurocognitive dysfunction at discharge by group was: placebo 6/8 (75%), 375 U/kg 4/8 (50%), 750 U/kg 6/8 (75%), and 1500 U/kg 5/8 (63%). Neurocognitive dysfunction at 2 months by group was: placebo 3/8 (38%), 375 U/kg 1/8 (13%), 750 U/kg 1/8 (13%), and 1500 U/kg 0/8 (0%). Neurocognitive dysfunction at 2 months for erythropoietin at any dose was 2/24 (8.3%) versus 3/8 (38%) for placebo (P=0.085). CONCLUSIONS: This study demonstrates feasibility and safety for the use of human recombinant erythropoietin as a neuroprotectant in coronary artery bypass graft surgery. A trend in the reduction of neurocognitive dysfunction at 2 months was associated with erythropoietin use. A multicenter randomized controlled trial is warranted.

Health solutions to improve post-intensive care outcomes: a realist review protocol.

BACKGROUND: While 80% of critically ill patients treated in an intensive care unit (ICU) will survive, survivors often suffer a constellation of new or worsening physical, cognitive, and psychiatric complications, termed post-intensive care syndrome. Emerging evidence paints a challenging picture of complex, long-term complications that are often untreated and culminate in substantial dependence on acute care services. Clinicians and decision-makers in the Fraser Health Authority of British Columbia are working to develop evidence-based community healthcare solutions that will be successful in the context of existing healthcare services. The objective of the proposed review is to provide the theoretical scaffolding to transform the care of survivors of critical illness by a synthesis of relevant clinical and healthcare service programs. METHODS: Realist review will be used to develop and refine a theoretical understanding of why, how, for whom, and in what circumstances post-ICU program impact ICU survivors' outcomes. This review will follow the recommended five steps of realist review which include (1) clarifying the scope of the review and articulating a preliminary program theory, (2) searching for evidence, (3) appraising primary studies and extracting data, (4) synthesizing evidence and sharing conclusions, and (5) disseminating and implementing recommendations. DISCUSSION: This realist review will provide a program theory, encompassing the contexts, mechanisms, and outcomes, to explain how clinical and health service interventions to improve ICU survivor outcomes operate in different contexts for different survivors, and with what effect. This review will be an evidentiary pillar for health service development and implementation by our knowledge user team members as well as advance scholarly knowledge relevant nationally and internationally. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42018087795.

The role of capsid-endothelial interactions in the innate immune response to adenovirus vectors.

Adenovirus (Ad) vectors can produce inflammatory responses at high doses. Intravenous administration of an Ad vector expressing green fluorescent protein (AdGFP) to naive mice induced a biphasic pattern of liver cytokine/chemokine gene expression over 7 days. Tumor necrosis factor alpha (TNF-alpha), macrophage inflammatory protein 2 (MIP-2), and interferon gamma-inducible protein 10 (IP-10) genes were upregulated, with two distinct peaks of mRNA expression occurring at 6 hr and 5 days. The administration of transcription-defective AdGFP particles induced the early but not the late peak of chemokine/cytokine gene expression, confirming that Ad vector-induced inflammation is capsid dependent in the early phase and transcription dependent in the late phase. To determine the role of adenoviral capsid motifs in the early phase, capsid-modified Ad vectors were employed. The intravenous administration of the RGD-deleted Ad vector AdL.PB*, the fiber mutant AdL.F*, or the double mutant AdL.F*PB* induced similar levels of cytokine/chemokine expression compared with the wild-type vector AdLuc. Kupffer cell blockade significantly reduced liver TNF-alpha, MIP-2, and IP-10 gene expression and liver inflammation after the administration of AdL.PB* or AdL.F*PB*. Fluorescence microscopy of AdLuc- and AdL.PB*-transduced liver at 1 hr revealed localization of Ad vectors to liver sinusoids in Kupffer cell-depleted mice. AdL.PB* induced less E-selectin and VCAM-1 gene expression in liver, confirming reduced endothelial activation in mice receiving RGD-deleted Ad vectors. In vitro studies of endothelial cells demonstrated reduced transduction and endothelial activation by AdL.PB* compared with AdLuc. These results demonstrate that adenovirus capsid RGD motifs are required for efficient transduction and endothelial cell activation. Altering vector tropism represents a feasible strategy to modulate the innate response to Ad vectors in nontargeted tissues.