Journal of the Intensive Care Society最新文献

Introduction: The age of patients admitted into critical care in the UK is increasing. Clinical decisions for very-old patients, usually defined as over 80, can be challenging. Clinicians are frequently asked to predict outcomes as part of discussions around the pros and cons of an intensive care unit (ICU) admission. Measures of overall health in old age, such as the clinical frailty scale (CFS), are increasingly used to help guide these discussions. We aimed to understand the characteristics of the very-old critically unwell population in the UK and the associations between frailty and outcome of an ICU admission in our healthcare system (National Health Service, NHS).

Methods: Baseline characteristics, ICU interventions and outcomes (ICU- and 30-day mortality) were recorded for sequential admissions of very old patients to UK ICUs as part of the European VIP 1 and 2 studies. Patient characteristics, interventions and outcome measures were compared by frailty group using standard statistical tests. Multivariable logistic regression modelling was undertaken to test association between baseline characteristics, admission type and outcome.

Results: 1858 participants were enrolled from 95 ICUs in the UK. The median age was 83. The median CFS was 4 (IQR 3-5). 30-day survival was significantly lower in the frail group (CFS > 4, 58%) compared to vulnerable (CFS = 4, 65%) and fit (CFS < 4 68%, p = .004). Sequential organ failure assessment (SOFA) score, reason for admission and CFS were all independently associated with increased 30-day mortality (p < .01).

Conclusion: In the UK, frailty is associated with an increase in mortality at 30-days following an ICU admission. At moderate frailty (CFS 5-6), three out of every five patients admitted survived to 30-days. This is a similar mortality to septic shock.

Methods of continuous renal replacement therapy (CRRT) in extracorporeal membrane oxygenation (ECMO) patients include dedicated central venous cannula (CVC) (vCRRT), in-series with filter connected to ECMO circuit (eCRRT) or in-line with haemodiafilter incorporated within ECMO circuit. We assessed the efficacy and safety of eCRRT versus vCRRT in 20 ECMO-CRRT patients. Average filter lifespan was 42 vs 28 hours and filter runs completing 72hours were 40% vs 13.8% (eCRRT vs vCRRT, respectively). One incidence of ECMO circuit air embolus occurred (vCRRT). eCRRT achieved adequate filtration and increased filter lifespan, and has become our default for ECMO-CRRT if a pre-existing dialysis CVC is not present.

Background: The decision to admit patients to the intensive care unit (ICU) is complex. Structuring the decision-making process may be beneficial to patients and decision-makers alike. The aim of this study was to investigate the feasibility and impact of a brief training intervention on ICU treatment escalation decisions using the Warwick model- a structured decision-making framework for treatment escalation decisions.

Methods: Treatment escalation decisions were assessed using Objective Structured Clinical Examination-style scenarios. Participants were ICU and anaesthetic registrars with experience of making ICU admission decisions. Participants completed one scenario, followed by training with the decision-making framework and subsequently a second scenario. Decision-making data was collected using checklists, note entries and post-scenario questionnaires.

Results: Twelve participants were enrolled. Brief decision-making training was successfully delivered during the normal ICU working day. Following training participants demonstrated greater evidence of balancing the burdens and benefits of treatment escalation. On visual analogue scales of 0-10, participants felt better trained to make treatment escalation decisions (4.9 vs 6.8, p = 0.017) and felt their decision-making was more structured (4.7 vs 8.1, p = 0.017).Overall, participants provided positive feedback and reported feeling more prepared for the task of making treatment escalation decisions.

Conclusion: Our findings suggest that a brief training intervention is a feasible way to improve the decision-making process by improving decision-making structure, reasoning and documentation. Training was implemented successfully, acceptable to participants and participants were able to apply their learning. Further studies of regional and national cohorts are needed to determine if training benefit is sustained and generalisable.

Background: Adverse sequelae are common in survivors of critical illness. Physical, psychological and cognitive impairments can affect quality of life for years after the original insult. Driving is an advanced task reliant on complex physical and cognitive functioning. Driving represents a positive recovery milestone. Little is currently known about the driving habits of critical care survivors. The aim of this study was to explore the driving practices of individuals after critical illness. Methods: A purpose-designed questionnaire was distributed to driving licence holders attending critical care recovery clinic. Results: A response rate of 90% was achieved. 43 respondents declared their intention to resume driving. Two respondents had surrendered their licence on medical grounds. 68% had resumed driving by 3 months, 77% by 6 months, and 84% by 1 year. The median interval (range) between critical care discharge and resumption of driving was 8 weeks (1-52 weeks). Psychological, physical and cognitive barriers were cited by respondents as barriers to driving resumption. Eight themes regarding driving resumption were identified from the framework analysis under three core domains and included: psychological/cognitive impact on ability to drive (Emotional readiness and anxiety; Confidence; Intrinsic motivation; Concentration), physical ability to drive (Weakness and fatigue; Physical recovery), and supportive care and information needs to resume driving (Information/advice; Timescales). Conclusion: This study demonstrates that resumption of driving following critical illness is substantially delayed. Qualitative analysis identified potentially modifiable barriers to driving resumption.

Background: To investigate the impact of physical activity interventions, including early mobilisation, on delirium outcomes in critically ill patients.

Methods: Electronic database literature searches were conducted, and studies were selected based on pre-specified eligibility criteria. Cochrane Risk of Bias-2 and Risk Of Bias In Non-randomised Studies-of Interventions quality assessment tools were utilised. Grading of Recommendations, Assessment, Development and Evaluations was used to assess levels of evidence for delirium outcomes. The study was prospectively registered on PROSPERO (CRD42020210872).

Results: Twelve studies were included; ten randomised controlled trials one observational case-matched study and one before-after quality improvement study. Only five of the included randomised controlled trial studies were judged to be at low risk of bias, with all others, including both non-randomised controlled trials deemed to be at high or moderate risk. The pooled relative risk for incidence was 0.85 (0.62-1.17) which was not statistically significant in favour of physical activity interventions. Narrative synthesis for effect on duration of delirium found favour towards physical activity interventions reducing delirium duration with median differences ranging from 0 to 2 days in three comparative studies. Studies comparing varying intervention intensities showed positive outcomes in favour of greater intensity. Overall levels of evidence were low quality.

Conclusions: Currently there is insufficient evidence to recommend physical activity as a stand-alone intervention to reduce delirium in Intensive Care Units. Physical activity intervention intensity may impact on delirium outcomes, but a lack of high-quality studies limits the current evidence base.

Good glycaemic control confers an outcome benefit in both diabetic and non-diabetic critically unwell patients. Critically unwell patients receiving intravenous insulin in the intensive care unit (ICU) require hourly glucose monitoring. This brief communication highlights the impact of the introduction of the FreeStyle Libre glucose monitor, a form of continuous glucose monitoring, on the frequency of glucose recordings in patients receiving intravenous insulin in the ICU at York Teaching Hospital NHS Foundation Trust.

Introduction: The 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.

Methods: Critical 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.

Results: Analysis 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.

Discussion: This 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.