The effects of a tailored intensive care unit delirium prevention protocol: A randomized controlled trial

Sedation in the ICU

AbstractSedation practices are key to improving intensive care unit (ICU) outcomes. Adequate treatment of pain, minimization of sedation, delirium prevention, and improved patient interaction to ensure early rehabilitation and faster ventilator liberation are evidenced-based components of ICU care. Here we review components of appropriate ICU sedation including the use of multicomponent care bundles such as the ABCDEF bundle with a focus on changes in ICU practice that followed the Covid-19 pandemic.

Randomized feasibility trial for evaluating the impact of primary nursing on delirium duration during intensive care unit stay

OBJECTIVE

We tested the feasibility of a randomized controlled trial for comparing primary nursing with standard care.

RESEARCH METHODOLOGY

Elective cardiac surgical patients were eligible for inclusion. Patients with an intensive care unit stay of ≥ 3 days were followed up until intensive care unit discharge. Recruitment period was one year.

SETTING

Two intensive care units at a university hospital specialized in cardiovascular and diabetic diseases.

MAIN OUTCOME MEASURES

Primary outcomes were recruitment and delivery rate. Primary clinical outcome was duration of delirium, as assessed by the Confusion Assessment Method for Intensive Care Units. Secondary outcomes included the incidence of delirium, anxiety (10-point Numeric Rating Scale), and the satisfaction of patient relatives (validated questionnaire).

RESULTS

Of 369 patients screened, 269 could be allocated to primary nursing (n = 134) or standard care (n = 135), of whom 46 patients and 48 patients, respectively, underwent an intensive care unit stay ≥ 3 days. Thus, recruitment and delivery rates were 73 and 26 %, respectively. During primary nursing and standard care, 18 and 24 patients developed a delirium, with a median duration of 32 (IQR: 14-96) and 24 (IQR: 8-44) hours (P = 0.10). The risk difference of delirium for primary nursing versus standard care was 11 % and the relative risk was 0.65 (95 % CI: 0.28-1.46; P = 0.29). The extent of anxiety was similar between groups (P = 0.13). Satisfaction could be assessed in 73.5 % of relatives, without substantial differences between groups.

CONCLUSION

Data demonstrate that a trial for comparing primary nursing with standard care is generally feasible. However, the incidence of delirium may be a better primary outcome parameter than delirium duration, both in terms of long-term patient outcome and robustness of data quality.

IMPLICATIONS FOR CLINICAL PRACTICE

A randomized clinical trial regarding nursing organization during intensive care unit stay requires detailed planning of patient recruitment, data evaluation, and power calculation.

Effectiveness of nurse-led non-pharmacological interventions on outcomes of delirium in adults: A meta-analysis of randomized controlled trials

BACKGROUND

Delirium is a common complication among adults. It is essential to improve the outcomes of delirium.

AIM

To systematically synthesize the evidence on the effectiveness of the nurse-led non-pharmacological interventions on outcomes of delirium in adults.

METHODS

Electronic databases including CINAHL, Cochrane Library, MEDLINE, EMBASE, PubMed, Web of Science, PsycINFO, and Clinical Trial Registration were searched comprehensively by the authors. The authors reviewed the full text and assessed the risk of bias using the Cochrane Risk of Bias Tool 2.0. The meta-analysis was performed using RevMan and Stata software. The forest plots showed the overall effect of the included study and the I2 test was used to assess the degree of heterogeneity between studies. Random effects models were used to analyze studies with significant heterogeneity.

RESULTS

A total of 32 studies (10,122 participants) were included in the meta-analysis. Nurse-led non-pharmacological interventions resulted in a significantly lower incidence of delirium compared with the usual care/control group (risk ratio = 0.74, p < .001) and reduced mortality in the hospital compared with usual care (risk ratio = 0.81, p = .04). However, the implementation of nurse-led, non-pharmacological interventions had no significant effect on the duration, severity of delirium, or length of hospital stay.

LINKING EVIDENCE TO ACTION

Our findings suggest that the nurse-led, non-pharmacological strategy was effective in reducing the incidence of delirium and mortality in the hospital. Multicomponent interventions were the most effective strategy for reducing the incidence of delirium in adults.

Multicentre implementation of a quality improvement initiative to reduce delirium in adult intensive care units: An interrupted time series analysis

PURPOSE

The ABCDEF bundle may improve delirium outcomes among intensive care unit (ICU) patients, however population-based studies are lacking. In this study we evaluated effects of a quality improvement initiative based on the ABCDEF bundle in adult ICUs in Alberta, Canada.

MATERIAL AND METHODS

We conducted a pre-post, registry-based clinical trial, analysed using interrupted time series methodology. Outcomes were examined via segmented linear regression using mixed effects models. The main data source was a population-based electronic health record.

RESULTS

44,405 consecutive admissions (38,400 unique patients) admitted to 15 general medical/surgical and/or neurologic adult ICUs between 2014 and 2019 were included. The proportion of delirium days per ICU increased from 30.24% to 35.31% during the pre-intervention period. After intervention implementation it decreased significantly (bimonthly decrease of 0.34%, 95%CI 0.18-0.50%, p < 0.01) from 33.48% (95%CI 29.64-37.31%) in 2017 to 28.74% (95%CI 25.22-32.26%) in 2019. The proportion of sedation days using midazolam demonstrated an immediate decrease of 7.58% (95%CI 4.00-11.16%). There were no significant changes in duration of invasive ventilation, proportion of partial coma days, ICU mortality, or potential adverse events.

CONCLUSIONS

An ABCDEF delirium initiative was implemented on a population-basis within adult ICUs and was successful at reducing the prevalence of delirium.

A cluster-randomized controlled trial of a nurse-led artificial intelligence assisted prevention and management for delirium (AI-AntiDelirium) on delirium in intensive care unit: Study protocol

BACKGROUND

Delirium is a common complication among intensive care unit (ICU) patients that is linked to negative clinical outcomes. However, adherence to the Clinical Practice Guidelines for the Prevention and Management of Pain, Agitation/Sedation, Delirium, Immobility, and Sleep Disruption in Adult Patients in the ICU (PADIS guidelines), which recommend the use of the ABCDEF bundle, is sub-optimal in routine clinical care. To address this issue, AI-AntiDelirium, a nurse-led artificial intelligence-assisted prevention and management tool for delirium, was developed by our research team. Our pilot study yielded positive findings regarding the use of AI-AntiDelirium in preventing patient ICU delirium and improving activities of daily living and increasing intervention adherence by health care staff.

METHODS

The proposed large-scale pragmatic, open-label, parallel-group, cluster randomized controlled study will assess the impact of AI-AntiDelirium on the incidence of ICU delirium and delirium-related outcomes. Six ICUs in two tertiary hospitals in China will be randomized in a 1:1 ratio to an AI-AntiDelirium or a PADIS guidelines group. A target sample size of 1,452 ICU patients aged 50 years and older treated in the ICU for at least 24 hours will be included. The primary outcome evaluated will be the incidence of ICU delirium and the secondary outcomes will be the duration of ICU delirium, length of ICU and hospital stay, ICU and in-hospital mortality rates, patient cognitive function, patient activities of daily living, and ICU nurse adherence to the ABCDEF bundle.

DISCUSSION

If this large-scale trial provides evidence of the effectiveness of AI-AntiDelirium, an artificial intelligence-assisted system tool, in decreasing the incidence of ICU delirium, length of ICU and hospital stay, ICU and in-hospital mortality rates, patient cognitive function, and patient activities of daily living while increasing ICU nurse adherence to the ABCDEF bundle, it will have a profound impact on the management of ICU delirium in both research and clinical practice.

CLINICAL TRIAL REGISTRATION

ChiCTR1900023711 (Chinese Clinical Trial Registry).

Frailty in the prediction of delirium in the intensive care unit: A secondary analysis of the Deli study

BACKGROUND

Delirium is an acute disorder of attention and cognition with an incidence of up to 70% in the adult intensive care setting. Due to the association with significantly increased morbidity and mortality, it is important to identify who is at the greatest risk of an acute episode of delirium while being cared for in the intensive care. The objective of this study was to determine the ability of the cumulative deficit frailty index and clinical frailty scale to predict an acute episode of delirium among adults admitted to the intensive care.

METHODS

This study is a secondary analysis of the Deli intervention study, a hybrid stepped-wedge cluster randomized controlled trial to assess the effectiveness of a nurse-led intervention to reduce the incidence and duration of delirium among adults admitted to the four adult intensive care units in the south-west of Sydney, Australia. Important predictors of delirium were identified using a bootstrap approach and the absolute risks, based on the cumulative deficit frailty index and the clinical frailty scale are presented.

RESULTS

During the 10-mth data collection period (May 2019 and February 2020) 2566 patients were included in the study. Both the cumulative deficit frailty index and the clinical frailty scale on admission, plus age, sex, and APACHE III (AP III) score were able to discriminate between patients who did and did not experience an acute episode of delirium while in the intensive care, with AUC of 0.701 and 0.703 (moderate discriminatory ability), respectively. The addition of a frailty index to a prediction model based on age, sex, and APACHE III score, resulted in net reclassified of risk. Nomograms to individualize the absolute risk of delirium using these predictors are also presented.

CONCLUSION

We have been able to show that both the cumulative deficits frailty index and clinical frailty scale predict an acute episode of delirium among adults admitted to intensive care.

Effects of non-pharmacologic prevention on delirium in critically ill patients: A network meta-analysis

BACKGROUND

Delirium is a common complication among patients in the intensive care unit (ICU). It is important to prevent the occurrence of delirium in critically ill patients.

AIM

This review aimed to evaluate the efficacy of non-pharmacological interventions and determine what combination of these is effective in preventing delirium among Intensive Care Unit patients.

STUDY DESIGN

A systematic review and meta-analysis. This review follows the guidelines of the Preferred Reporting Items for Systematic reviews and Meta Analysis statements for Network Meta-Analysis (PRISMA-NMA). Data sources included the Cumulative Index to Nursing & Allied Health Literature., MEDLINE, and Cochrane library databases. The integrated data were investigated with odds ratio (OR) and 95% confidence interval (95% CI), using the random-effects Mantel-Haenszel model. Data were considered significant when p < 0.05. Furthermore, to reveal what combination of care is effective, we performed a network meta-analysis estimated OR, 95% CI.

RESULTS

We identified three randomized controlled trials and eight controlled before-after trials (11 in total, with 2549 participants). The pooled data from 11 trials of multicomponent intervention had a significant effect on delirium prevention (OR 0.58, 95% CI 0.44-0.76, p < 0.001). As a result of network meta-analysis, two bundles were effective compared to the control group in reducing the incidence of delirium: a) the combination of sleep promotion (SP), cognitive stimulation (CS), early mobilization (EM), pain control (PC), and assessment (AS) (OR 0.47, 95% CI 0.35-0.64, p < 0.002), and b) the combination of SP and CS (OR 0.46, 95% CI 0.28-0.75, p < 0.001).

CONCLUSION

This study revealed that non-pharmacological interventions, particularly multicomponent interventions, helped to prevent delirium in critically ill patients. In the network meta-analysis, the most effective care combination for reducing incidence of delirium was found to be multicomponent intervention, which comprises SP-CS-EM-PC-AS, and SP-CS.

RELEVANCE TO CLINICAL PRACTICE

These findings reveal an efficient combination of multicomponent interventions for preventing delirium, which may be a very important prerequisite in planning care programs in the future.

The effects of a sensory stimulation intervention for preventing delirium in a surgical intensive care unit: A randomized controlled trial

BACKGROUND

Despite extensive efforts and advances in developing and fostering evidence-based delirium prevention interventions, the incidence of delirium remains high in hospitalized patients. Evidence suggests that sensory stimulation is a core component in interventions to prevent delirium among critically ill patients. However, its impact on the occurrence and outcomes of delirium is poorly understood.

AIM

To evaluate the effects of a sensory stimulation intervention on preventing delirium in a surgical intensive care unit (ICU).

STUDY DESIGN

A prospective, assessor-blind, parallel-group randomized controlled trial. Adult patients were recruited from a surgical ICU of one tertiary hospital in Guangzhou, China. Participants in the intervention group received a daily 30-min auditory and visual stimulation session for a week, taking into consideration the participants' predefined condition and intervention protocol. The primary outcomes were delirium incidence and delirium-free days, and the secondary outcomes were delirium duration, severity and the first occurrence of delirium. Demographic and clinical data were collected at recruitment, and delirium was assessed three times a day for seven consecutive days using Confusion Assessment-ICU.

RESULTS

One hundred and fifty-two participants were randomly assigned to intervention or control groups. For primary outcomes, there were fewer patients with delirium in the intervention group than in the control group (10 vs. 19, risk ratio = 0.53), although statistical significance was not reached. The result showed that there were longer delirium-free days among participants in the intervention group than in the control group (3.66 vs. 2.84, p = .019). For secondary outcomes, the intervention could significantly reduce delirium duration (1.70 ± 0.82 vs. 4.53 ± 2.74 days, p = .004) and delirium severity (3.70 ± 1.25 vs. 5.68 ± 1.57, p = .002). The Kaplan-Meier curve showed the intervention group had a significantly delayed first occurrence of delirium compared with the control group (p = .043).

CONCLUSIONS

The study did not provide significant evidence to support that sensory stimulation could reduce the incidence of delirium, but significant difference on delirium-free days.

RELEVANCE TO CLINICAL PRACTICE

This study provides evidence-based practice for clinical healthcare providers to adopt the sensory stimulation protocol to prevent delirium, significantly reducing delirium duration and severity.

Effect of using eye masks and earplugs in preventing delirium in intensive care patients: A single-blinded, randomized, controlled trial

BACKGROUND

Delirium, which is frequently encountered in intensive care patients, can be prevented with multicomponent nursing interventions, and thus the negative consequences can be reduced.

AIM

To examine the effect of using eye masks and earplugs in preventing delirium in intensive care units (ICUs).

STUDY DESIGN

A randomized, controlled, single-blind intervention study. This study was conducted in the medical and surgical ICUs of a tertiary hospital, and nurses were given pre-study training on delirium risks, diagnosis, prevention, and management. Data were collected using the patient information form, the Nursing Delirium Screening Scale, the Richard-Campbell Sleep Scale, and the daily follow-up form. Various environmental modifications were made in the ICUs for all patients, and evidence-based nonpharmacological nursing interventions were applied to the patients in both groups during the day and night shifts for 3 days. In addition, the patients in the intervention group were provided with eye masks and earplugs for three nights.

RESULTS

The study included a total of 60 patients (30 in the intervention group and 30 in the control group). There was a statistically significant difference in the development of delirium between the intervention and control groups (night of the 2nd day, p = .019; day of the 3rd day p < .001; night of the 3rd day p ≤ .001). The average total sleep quality score of the intervention group was found to be significantly higher than the control group (p ≤ .001 for three nights). Staying in the internal medicine ICU affected (odds ratio [OR], 11.84; 95% confidence interval [CI], 3.00-46.66; p = .017) more on the development of delirium than in coronary ICU, being in the age group of 65 and over, having a hearing impairment, coming to ICU from the operating room, and education level had an effect.

CONCLUSIONS

The earplugs and eye masks used by the intensive care patients overnight were found to be effective in increasing sleep quality and preventing delirium.

RELEVANCE TO CLINICAL PRACTICE

The use of eye masks and earplugs is recommended for ICUs in preventing delirium.

Evaluating the performance of machine learning methods for risk estimation of delirium in patients hospitalized from the emergency department

INTRODUCTION

Delirium is a cerebral dysfunction seen commonly in the acute care setting. It is associated with increased mortality and morbidity and is frequently missed in the emergency department (ED) and inpatient care by clinical gestalt alone. Identifying those at risk of delirium may help prioritize screening and interventions in the hospital setting.

OBJECTIVE

Our objective was to leverage electronic health records to identify a clinically valuable risk estimation model for prevalent delirium in patients being transferred from the ED to inpatient units.

METHODS

This was a retrospective cohort study to develop and validate a risk model to detect delirium using patient data available from prior visits and ED encounter. Electronic health records were extracted for patients hospitalized from the ED between January 1, 2014, and December 31, 2020. Eligible patients were aged 65 or older, admitted to an inpatient unit from the emergency department, and had at least one DOSS assessment or CAM-ICU recorded within 72 h of hospitalization. Six machine learning models were developed to estimate the risk of delirium using clinical variables including demographic features, physiological measurements, medications administered, lab results, and diagnoses.

RESULTS

A total of 28,531 patients met the inclusion criteria with 8057 (28.4%) having a positive delirium screening within the outcome observation period. Machine learning models were compared using the area under the receiver operating curve (AUC). The gradient boosted machine achieved the best performance with an AUC of 0.839 (95% CI, 0.837-0.841). At a 90% sensitivity threshold, this model achieved a specificity of 53.5% (95% CI 53.0%-54.0%) a positive predictive value of 43.5% (95% CI 43.2%-43.9%), and a negative predictive value of 93.1% (95% CI 93.1%-93.2%). A random forest model and L1-penalized logistic regression also demonstrated notable performance with AUCs of 0.837 (95% CI, 0.835-0.838) and 0.831 (95% CI, 0.830-0.833) respectively.

CONCLUSION

This study demonstrated the use of machine learning algorithms to identify a combination of variables that enables an estimation of risk of positive delirium screens early in hospitalization to develop prevention or management protocols.

The effects of a sensory stimulation intervention on psychosocial and clinical outcomes of critically ill patients and their families: A randomised controlled trial

OBJECTIVES

To explore the effectiveness of a sensory stimulation intervention on intensive care unit patients' psychosocial, clinical, and family outcomes.

DESIGN

A prospective, assessor-blind, parallel-group randomised controlled trial.

SETTING

A surgical intensive care unit of one tertiary hospital in Guangzhou, mainland China.

INTERVENTION

Participants in the intervention group received a daily 30-minute auditory and visual stimulation session starting from recruitment and for a maximum of seven days while in the intensive care unit.

MEASUREMENT AND MAIN RESULTS

One hundred fifty-two patients and family caregiver dyads were recruited. Patients in the intervention group showed lower total scores of post-traumatic stress disorder (21.92 ± 6.34 vs 27.62 ± 10.35,p = 0.001), depressive symptoms (3.76 ± 3.99 vs 6.78 ± 4.75,p = 0.001) and delusional memories (0.47 ± 0.92 vs 0.82 ± 1.23,p = 0.001) collected immediately post-intervention than those in the control group, while not on depressive symptoms at one-month post-intervention (3.32 ± 4.03 vs 3.28 ± 3.77,p = 0.800). Sensory stimulation did not significantly impact patients' unit length of stay and 30-day mortality (allp > 0.05). For family outcomes, family caregivers in the intervention group had greater satisfaction with care (127.12 ± 14.14 vs 114.38 ± 21.97,p = 0.001) and a lower level of anxiety (28.49 ± 6.48 vs 34.64 ± 7.68,p = 0.001) than family caregivers in the control group.

CONCLUSIONS

Sensory stimulation may benefit patients' and family caregivers' psychological well-being, and further well-designed multi-centre clustered randomized controlled trials could be considered to strengthen the evidence.

Delirium in the intensive care unit and its importance in the post-operative context: A review

The burden of delirium in the intensive care setting is a global priority. Delirium affects up to 80% of patients in intensive care units; an episode of delirium is often distressing to patients and their families, and delirium in patients within, or outside of, the intensive care unit (ICU) setting is associated with poor outcomes. In the short term, such poor outcomes include longer stay in intensive care, longer hospital stay, increased risk of other hospital-acquired complications, and increased risk of hospital mortality. Longer term sequelae include cognitive impairment and functional dependency. While medical category of admission may be a risk factor for poor outcomes in critical care populations, outcomes for surgical ICU admissions are also poor, with dependency at hospital discharge exceeding 30% and increased risk of in-hospital mortality, particularly in vulnerable groups, with high-risk procedures, and resource-scarce settings. A practical approach to delirium prevention and management in the ICU setting is likely to require a multi-faceted approach. Given the good evidence for the prevention of delirium among older post-operative outside of the intensive care setting, simple non-pharmacological interventions should be effective among older adults post-operatively who are cared for in the intensive care setting. In response to this, the future ICU environment will have a range of organizational and distinct environmental characteristics that are directly targeted at preventing delirium.

Patientinnen- und patientenbezogene Auswirkungen von prozessverantwortlicher Pflege

Background

Since January 2022, a primary nursing system called process-responsible nursing (PP) has substituted the standard room care system in an intensive care unit (ICU) at our institution. The process of the development and implementation of PP is already being evaluated in a separate study as an actual analysis prior to implementation, as well as after 6 and 12 months.

Aim

This pilot randomized controlled trial (RCT) aims to test the feasibility of an RCT. For this purpose, the duration of delirium, among other things, will be compared in the project ICU with the results of standard care in another ICU at the university hospital. As secondary aims, the incidence of delirium, anxiety, the satisfaction of relatives, and the effects of PP on nurses will be assessed.

Methods

It is planned to recruit about 400–500 patients over a period of one year. They will be allocated to PP or standard care. Delirium will be assessed using the Confusion Assessment Method for Intensive Care Units by specifically trained nurses three times a day. Anxiety in patients, the satisfaction of relatives, and the effects of PP on nurses will be evaluated using the numeric rating scale, a standardized questionnaire, and a focus group interview, respectively.

Expected results

The primary hypothesis is that compared to usual care PP reduces the duration of delirium by at least 8 h. Additional hypotheses are that PP reduces anxiety in patients and increases the satisfaction of relatives.

Web-Based Delirium Prevention Application for Long-Term Care Facilities

OBJECTIVE

A web-based application was developed for medical staff to easily access and use a comprehensive delirium prevention management program-comprising risk prediction, assessment, and intervention-even in long-term care facilities with insufficient systems.

DESIGN

A randomized control trial.

SETTING AND PARTICIPANTS

A long-term care facility with 250 beds in Korea. Participants were 130 facility residents aged 18 or older who understood the purpose of this study and for whom a legal representative provided participation consent. Participants were randomly assigned to the intervention and control groups (n = 65 per group).

METHODS

The participants' risk of delirium episodes was predicted using the web-based application Web_DeliPREVENT_4LCF. Delirium was assessed using the built-in Short Confusion Assessment Method (S-CAM). Among the intervention group, nonpharmacological, multicomponent delirium prevention interventions guided by the application were applied to participants who were predicted to be at risk for delirium or tested positive for delirium. The intervention was provided for 30 days.

RESULTS

The intervention group had a 0.30 times lower incidence of delirium [95% confidence interval (CI) 0.12-0.79; P = .015] and 0.08 times lower 1-month hospitalization mortality (95% CI 0.01-0.79; P = .031) than the control group. There were no differences between the 2 groups in delirium severity, mortality, and 3-month hospitalization mortality, long-term care facility discharge, and length of stay.

CONCLUSIONS AND IMPLICATIONS

The Web_DeliPREVENT_4LCF was effective in reducing delirium episodes and 1-month in-hospital mortality. Therefore, even in Korean long-term care facilities, which lack manpower and electronic medical record systems compared with general hospitals, the health care professional can easily access and use the app for early detection and preventive intervention for residents' delirium.

REGISTRATION

KCT0005804.

Effectiveness of nursing intervention to reduce delirium in adult critically ill - A protocol for a randomized trial

The incidence of delirium in intensive care patients remains high, and its consequences have a high negative impact on patients, their families, health care teams, and society in general. Because delirium can lead to increased hospital stay, increased days on mechanical ventilation, increased risk of adverse events, increased memory loss and even increased mortality. However, some factors that precipitate delirium can be modified to reduce its presence and duration through non-pharmacological measures. Thus, the present protocol seeks to establish the theoretical and methodological background to develop and test nursing interventions to reduce delirium in adult patients hospitalized in the intensive care unit. For this reason, it is based on the theoretical elements of delirium and a nursing theory, called the Dynamic Symptoms Model (DSM), to understand the phenomenon and how nursing knowledge can be used to intervene. Thus, a nursing intervention proposal is proposed based on the DSM and scientific evidence, and a methodological design of a randomized controlled clinical trial type with parallel groups, which allows measuring the effectiveness of the designed interventions, following methodological and ethical rigor and with adequate control of biases.

A nurse-led intervention to reduce the incidence and duration of delirium among adults admitted to intensive care: A stepped-wedge cluster randomised trial

BACKGROUND

Delirium is an acute change in behaviour, characterised by a fluctuating course, inattention, and disorganised thinking. For critically ill adults in the intensive care, the incidence of delirium has been reported to be at least 30% and is associated with both short-term and long-term complications, longer hospital stay, increased risk of mortality, and long-term cognitive problems.

AIM

The objective of this study was to determine the effectiveness of a nurse-led delirium-prevention protocol in reducing the incidence and duration of delirium among adults admitted to intensive care.

METHODS

A hybrid stepped-wedge cluster randomised controlled trial was conducted to assess the effectiveness of the implementation and dissemination of the nurse-led intervention to reduce the incidence and duration of delirium among adults admitted to the four adults intensive care units in the southwest of Sydney, Australia.

RESULTS

Between May 2019 and February 2020, over a 10-month period, 2618 admissions, among 2566 patients, were included in the study. After an initial 3-month baseline period, each month there was a random crossover to the nurse-led intervention in one of the four intensive care units, and by the 7th month of the trial, all units were exposed to the intervention for at least 3 months. The incidence of acute delirium was observed to be 10.7% (95% confidence interval [CI] = 9.1-12.4%), compared to 14.1% (95% CI = 12.2-16.2%) during the preintervention (baseline) period (adjusted rate ratio [adjRR] = 0.78, 95% CI = 0.57-1.08, p = 0.134). The average delirium-free-days for these preintervention and postintervention periods were 4.1 days (95% CI = 3.9-4.3) and 4.4 days (95% CI = 4.2-4.5), respectively (adjusted difference = 0.24 days [95% CI = -0.12 to 0.60], p = 0.199).

CONCLUSION

Following the introduction of a nurse-led, nonpharmacological intervention to reduce the burden of delirium, among adults admitted to intensive care, we observed no statistically significant decrease in the incidence of delirium or the duration of delirium.

The development of a web-based app employing machine learning for delirium prevention in long-term care facilities in South Korea

Background

Long-term care facilities (LCFs) in South Korea have limited knowledge of and capability to care for patients with delirium. They also often lack an electronic medical record system. These barriers hinder systematic approaches to delirium monitoring and intervention. Therefore, this study aims to develop a web-based app for delirium prevention in LCFs and analyse its feasibility and usability.

Methods

The app was developed based on the validity of the AI prediction model algorithm. A total of 173 participants were selected from LCFs to participate in a study to determine the predictive risk factors for delerium.

The app was developed in five phases: (1) the identification of risk factors and preventive intervention strategies from a review of evidence-based literature, (2) the iterative design of the app and components of delirium prevention, (3) the development of a delirium prediction algorithm and cloud platform, (4) a pilot test and validation conducted with 33 patients living in a LCF, and (5) an evaluation of the usability and feasibility of the app, completed by nurses (Main users).

Results

A web-based app was developed to predict high risk of delirium and apply preventive interventions accordingly. Moreover, its validity, usability, and feasibility were confirmed after app development. By employing machine learning, the app can predict the degree of delirium risk and issue a warning alarm. Therefore, it can be used to support clinical decision-making, help initiate the assessment of delirium, and assist in applying preventive interventions.

Conclusions

This web-based app is evidence-based and can be easily mobilised to support care for patients with delirium in LCFs. This app can improve the recognition of delirium and predict the degree of delirium risk, thereby helping develop initiatives for delirium prevention and providing interventions. Moreover, this app can be extended to predict various risk factors of LCF and apply preventive interventions. Its use can ultimately improve patient safety and quality of care.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12911-022-01966-8.

Prevention and treatment of delirium in intensive care: Hermeneutics of experiences of the nursing team

OBJECTIVE

To understand the experiences in nursing care in the prevention and treatment of delirium in people hospitalized in intensive care units.

METHODOLOGY

Hermeneutic phenomenological qualitative study. The selection of participants was by intentional sampling: seven nursing assistants and eight nurses. Theoretical saturation was achieved. The phenomenological interview was applied to collect data from a central question and the analysis was carried out following the approaches of Heidegger's hermeneutical circle.

RESULTS

Four significant themes emerged from the analysis: (1) delirium prevention, (2) pharmacological treatment, (3) non-pharmacological treatment, and (4) barriers to non-pharmacological treatment. These themes were accompanied by 35 interrelated units of meaning: in the first theme, the most repetitive units were communication, orientation, and family bonding; in the second was the use of pharmacological treatment only in the acute phase; in the third was the modification of the environment according to the patient's preference (where the family is a priority and strategies that provide cognitive and social stimulation can be reinforced), and in the fourth was the work overload for the nursing team.

CONCLUSIONS

The experiences of the nursing team in the prevention and treatment of delirium in critically ill patients highlight that communication allows an approach to the patient as a human being immersed in a reality, with a personal history, needs and preferences. Therefore, family members must be involved in these scenarios, as they can complement and support nursing care.

O papel do enfermeiro na prevenção do delirium no paciente adulto/idoso crítico

Introdução: Delirium é uma disfunção cerebral aguda, associado ao aumento da mortalidade e morbilidade, que atinge frequentemente o paciente adulto/idoso crítico. O enfermeiro tem um papel determinante na prevenção/controlo do delirium, através da implementação de intervenções não farmacológicas. Objetivo: Conhecer as intervenções de enfermagem na identificação, prevenção e controlo do delirium no paciente adulto/idoso crítico. Materiais e métodos: Realizada uma Revisão Integrativa da Literatura de artigos publicados entre 2014 e 2018, que identificaram intervenções de enfermagem dirigidas à prevenção e controlo do delirium no paciente adulto/idoso crítico. Foram realizadas quatro pesquisas, nas bases de dados electrónicas da EBSCOhost e na B-on. Resultados: Identificaram-se 13 estudos, que apresentam intervenções de enfermagem, maioritariamente não farmacológicas, para prevenção e controlo do delirium no paciente adulto/idoso crítico. Destas, evidenciam-se intervenções relacionadas com o ambiente, promoção do sono, intervenção terapêutica precoce, avaliação cognitiva e orientação dos pacientes, intervenções sistematizadas em protocolos, bem como intervenções direcionadas à participação dos familiares, à formação dos enfermeiros e ao ensino dos pacientes. Foram também identificados fatores de risco para o desenvolvimento do delirium e instrumentos de avaliação. Discussão: A prevenção do delirium é importante e imperativa, já que nos pacientes críticos a sua ocorrência está associada ao aumento da mortalidade, morbilidade, do tempo de internamento e a um elevado custo hospitalar. A identificação dos fatores de risco para a ocorrência do delirium devem estar incluídos nos protocolos de abordagem do delirium. Conclusão: As evidências demonstraram que o enfermeiro é fundamental na identificação precoce, prevenção e controlo do delirium, evitando a progressão da doença, contribuindo para a diminuição da morbilidade e mortalidade. A intervenção de enfermagem deve incluir a identificação de fatores predisponentes e/ou precipitantes de modo a contribuir para a diminuição da ocorrência e/ou resolução do quadro de delirium.

Nomogram Models for Predicting Delirium of Patients in Emergency Intensive Care Unit: A Retrospective Cohort Study

Background

Intensive care unit (ICU) delirium is one of the most common clinical syndromes that results in many adverse events that affect patients, families, and hospitals. To date, there has been no tool for effectively predicting the occurrence of delirium in emergency intensive care unit (EICU) patients.

Methods

We conducted a retrospective cohort study and constructed a prediction model for 319 patients in EICU, who met our inclusion criteria. We analyzed the relationship between patients’ clinical data within 24 hours of admission and delirium, applied univariate and multivariate logistic regression analyses to select the most relevant variables for construction of nomogram models, then applied bootstrapping for internal validation.

Results

A total of five variables, namely stomach and urinary tubes, as well as sedative, mechanical ventilation and APACHE-II scores, were selected for model construction. We generated a total of five sets of models (three sets of construction models and two sets of internal verification models), with similar predictive value. The optimal model was selected, and together with the 5 variables used to construct a nomogram. The AUC of the MFP model in all patients was 0.76 (0.70, 0.82), whereas that in non-elderly patients (<60 years old) for the full model was 0.83 (0.74, 0.91). In elderly patients (≥60 years old), the AUC of the MFP model was 0.82 (0.73, 0.91).

Conclusion

Overall, the five-marker-based prognostic tool, established herein, can effectively predict the occurrence of delirium in EICU patients.

2021 KSCCM clinical practice guidelines for pain, agitation, delirium, immobility, and sleep disturbance in the intensive care unit

We revised and expanded the “2010 Guideline for the Use of Sedatives and Analgesics in the Adult Intensive Care Unit (ICU).” We revised the 2010 Guideline based mainly on the 2018 “Clinical Practice Guidelines for the Prevention and Management of Pain, Agitation/Sedation, Delirium, Immobility, and Sleep Disruption (PADIS) in Adult Patients in the ICU,” which was an updated 2013 pain, agitation, and delirium guideline with the inclusion of two additional topics (rehabilitation/mobility and sleep). Since it was not possible to hold face-to-face meetings of panels due to the coronavirus disease 2019 (COVID-19) pandemic, all discussions took place via virtual conference platforms and e-mail with the participation of all panelists. All authors drafted the recommendations, and all panelists discussed and revised the recommendations several times. The quality of evidence for each recommendation was classified as high (level A), moderate (level B), or low/very low (level C), and all panelists voted on the quality level of each recommendation. The participating panelists had no conflicts of interest on related topics. The development of this guideline was independent of any industry funding. The Pain, Agitation/Sedation, Delirium, Immobility (rehabilitation/mobilization), and Sleep Disturbance panels issued 42 recommendations (level A, 6; level B, 18; and level C, 18). The 2021 clinical practice guideline provides up-to-date information on how to prevent and manage pain, agitation/sedation, delirium, immobility, and sleep disturbance in adult ICU patients. We believe that these guidelines can provide an integrated method for clinicians to manage PADIS in adult ICU patients.

Effectiveness of combined non-pharmacological interventions in the prevention of delirium in critically ill patients: A randomized clinical trial

PURPOSE

Delirium is a common dysfunction in the intensive care unit (ICU) and it is associated with negative short- and long-term outcomes. This study evaluated the effectiveness of combined non-pharmacological interventions in preventing delirium in critically ill patients.

MATERIALS AND METHODS

This is a single-center randomized controlled trial conducted in three Brazilian ICUs from February to September 2019. Patients assigned to the control group received standard care (n = 72) and those assigned to the experimental group (n = 72) received a bundle of non-pharmacological interventions (periodic reorientation, cognitive stimulation, correction of sensory deficits [visual or hearing impairment], environmental management and sleep promotion) throughout the ICU stay. Delirium was monitored twice a day with the Confusion Assessment Method for the Intensive Care Unit Flowsheet. The primary outcome was the incidence density of delirium.

RESULTS

The incidence density of delirium was lower in the intervention group (1.3 × 10^-2 person-days) than in the control group (2.3 × 10^-2 person-days), with a hazard ratio of 0.40 (95% confidence intervals, 0.17-0.95; p = 0.04) after adjustment for Simplified Acute Physiology Score III, surgical admission and alcoholism.

CONCLUSIONS

Combined non-pharmacological interventions reduced delirium in critically ill patients, compared to standard care.

TRIAL REGISTRATION

Brazilian Registry of Clinical Trials (ReBEC), Identifier RBR-6xq95s, October 03, 2018.

The family in preventing delirium in the intensive care unit: Scoping review

INTRODUCTION

Delirium is cognitive impairment related to negative inpatient outcomes in the Intensive Care Unit (ICU), family interventions have been shown to be effective in reducing the incidence of this condition.

OBJECTIVE

To identify strategies that include the family in the prevention of delirium in the adult intensive care unit that can be integrated into ABCDEF.

INCLUSION CRITERIA

Studies describing actions and interventions involving caregivers and family members in the ICU for the prevention of delirium, conducted in the last five years, available in full text, in English and Spanish, Portuguese and in adults.

METHODS

A scope review was conducted using the keywords "Critical Care, Delirium, Family, Primary Prevention" in 11 databases (PubMed, Virtual Health Library, Cochrane Library, TRIP Data base, EBSCO, Ovid Nursing, Springer, Scopus, Dialnet, Scielo, Lilacs) and other sources (Open Gray, Google Scholar), between August - October 2019; 8 studies were considered relevant and were analysed.

RESULTS

The results were described in 3 categories: flexibility vs. restriction of visits in the ICU, Reorientation as a prevention strategy and post-ICU syndrome in the family.

CONCLUSION

Extended visits, development of family-mediated activities, and redirection are non-pharmacological strategies that reduce the incidence of delirium in the ICU and offer multiple benefits to the patient and family/caregiver.

Use and effects of implementation strategies for practice guidelines in nursing: a systematic review

BACKGROUND

Practice guidelines can reduce variations in nursing practice and improve patient care. However, implementation of guidelines is complex and inconsistent in practice. It is unclear which strategies are effective at implementing guidelines in nursing. This review aimed to describe the use and effects of implementation strategies to facilitate the uptake of guidelines focused on nursing care.

METHODS

We conducted a systematic review of five electronic databases in addition to the Cochrane Effective Practice and Organization of Care (EPOC) Group specialized registry. Studies were included if implementation of a practice guideline in nursing and process or outcome of care provided by nurses were reported. Two reviewers independently screened studies, assessed study quality, extracted data, and coded data using the EPOC taxonomy of implementation strategies. For those strategies not included in the EPOC taxonomy, we inductively categorized these strategies and generated additional categories. We conducted a narrative synthesis to analyze results.

RESULTS

The search identified 46 papers reporting on 41 studies. Thirty-six studies used a combination of educational materials and educational meetings. Review findings show that multicomponent implementation strategies that include educational meetings, in combination with other educational strategies, report positive effects on professional practice outcomes, professional knowledge outcomes, patient health status outcomes, and resource use/expenditures. Twenty-three of the 41 studies employed implementation strategies not listed within the EPOC taxonomy, including adaptation of practice guidelines to local context (n = 9), external facilitation (n = 14), and changes to organizational policy (n = 3). These implementation strategies also corresponded with positive trends in patient, provider, and health system outcomes.

CONCLUSIONS

Nursing guideline implementation may benefit from using the identified implementation strategies described in this review, including participatory approaches such as facilitation, adaptation of guidelines, and organizational policy changes. Further research is needed to understand how different implementation strategy components work in a nursing context and to what effect. As the field is still emerging, future reviews should also explore guideline implementation strategies in nursing in quasi or non-experimental research designs and qualitative research studies.

Treatment of Delirium During Critical Illness

Delirium, an acute disturbance in mental status due to another medical condition, is common and morbid in the intensive care unit. Despite its clear association with multiple common risk factors and important outcomes, including mortality and long-term cognitive impairment, both the ultimate causes of and ideal treatments for delirium remain unclear. Studies suggest that neuroinflammation, hypoxia, alterations in energy metabolism, and imbalances in multiple neurotransmitter pathways contribute to delirium, but commonly used treatments (e.g., antipsychotic medications) target only one or a few of these potential mechanisms and are not supported by evidence of efficacy. At this time, the optimal treatment for delirium during critical illness remains avoidance of risk factors, though ongoing trials may expand on the promise shown by agents such as melatonin and dexmedetomidine. Expected final online publication date for the Annual Review of Medicine, Volume 73 is January 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

How We Prevent and Treat Delirium in the ICU

Delirium is a serious and complex problem facing critically ill patients, their families, and the health care system. When delirium develops, it is associated with prolonged hospital stays, increased costs, and long-term cognitive impairment in many patients. This article uses a clinical case to discuss our approach to delirium prevention and treatment in the ICU. We believe that an effective strategy to combat delirium requires implementation and adherence to a pain and sedation protocol as part of bundled care, use of a validated tool to detect delirium when present, and a focus on nonpharmacologic care strategies, including reorientation, early mobility, and incorporating family into care when possible. At present, the evidence does not support the routine administration of medications to prevent or treat delirium. A pharmacologic approach may be needed for agitated delirium, and we discuss our evaluation of the evidence for and against particular medications. Although delirium can be a distressing problem, there is evidence that it can be addressed through careful attention to prevention, detection, and minimizing the long-term impact on patients and their families.

Delirium in critical illness: clinical manifestations, outcomes, and management

Delirium is the most common manifestation of brain dysfunction in critically ill patients. In the intensive care unit (ICU), duration of delirium is independently predictive of excess death, length of stay, cost of care, and acquired dementia. There are numerous neurotransmitter/functional and/or injury-causing hypotheses rather than a unifying mechanism for delirium. Without using a validated delirium instrument, delirium can be misdiagnosed (under, but also overdiagnosed and trivialized), supporting the recommendation to use a monitoring instrument routinely. The best-validated ICU bedside instruments are CAM-ICU and ICDSC, both of which also detect subsyndromal delirium. Both tools have some inherent limitations in the neurologically injured patients, yet still provide valuable information about delirium once the sequelae of the primary injury settle into a new post-injury baseline. Now it is known that antipsychotics and other psychoactive medications do not reliably improve brain function in critically ill delirious patients. ICU teams should systematically screen for predisposing and precipitating factors. These include exacerbations of cardiac/respiratory failure or sepsis, metabolic disturbances (hypoglycemia, dysnatremia, uremia and ammonemia) receipt of psychoactive medications, and sensory deprivation through prolonged immobilization, uncorrected vision and hearing deficits, poor sleep hygiene, and isolation from loved ones so common during COVID-19 pandemic. The ABCDEF (A2F) bundle is a means to facilitate implementation of the 2018 Pain, Agitation/Sedation, Delirium, Immobility, and Sleep Disruption in Adult Patients in the ICU (PADIS) Guidelines. In over 25,000 patients across nearly 100 institutions, the A2F bundle has been shown in a dose-response fashion (i.e., greater bundle compliance) to yield improved survival, length of stay, coma and delirium duration, cost, and less ICU bounce-backs and discharge to nursing homes.

Pharmacological and non-pharmacological interventions to prevent delirium in critically ill patients: a systematic review and network meta-analysis

PURPOSE

To compare the effects of prevention interventions on delirium occurrence in critically ill adults.

METHODS

MEDLINE, Embase, PsychINFO, CINAHL, Web of Science, Cochrane Library, Prospero, and WHO international clinical trial registry were searched from inception to April 8, 2021. Randomized controlled trials of pharmacological, sedation, non-pharmacological, and multi-component interventions enrolling adult critically ill patients were included. We performed conventional pairwise meta-analyses, NMA within Bayesian random effects modeling, and determined surface under the cumulative ranking curve values and mean rank. Reviewer pairs independently extracted data, assessed bias using Cochrane Risk of Bias tool and evidence certainty with GRADE. The primary outcome was delirium occurrence; secondary outcomes were durations of delirium and mechanical ventilation, length of stay, mortality, and adverse effects.

RESULTS

Eighty trials met eligibility criteria: 67.5% pharmacological, 31.3% non-pharmacological and 1.2% mixed pharmacological and non-pharmacological interventions. For delirium occurrence, 11 pharmacological interventions (38 trials, N = 11,993) connected to the evidence network. Compared to placebo, only dexmedetomidine (21/22 alpha2 agonist trials were dexmedetomidine) probably reduces delirium occurrence (odds ratio (OR) 0.43, 95% Credible Interval (CrI) 0.21-0.85; moderate certainty). Compared to benzodiazepines, dexmedetomidine (OR 0.21, 95% CrI 0.08-0.51; low certainty), sedation interruption (OR 0.21, 95% CrI 0.06-0.69; very low certainty), opioid plus benzodiazepine (OR 0.27, 95% CrI 0.10-0.76; very low certainty), and protocolized sedation (OR 0.27, 95% CrI 0.09-0.80; very low certainty) may reduce delirium occurrence but the evidence is very uncertain. Dexmedetomidine probably reduces ICU length of stay compared to placebo (Ratio of Means (RoM) 0.78, CrI 0.64-0.95; moderate certainty) and compared to antipsychotics (RoM 0.76, CrI 0.61-0.98; low certainty). Sedative interruption, protocolized sedation and opioids may reduce hospital length of stay compared to placebo, but the evidence is very uncertain. No intervention influenced mechanical ventilation duration, mortality, or arrhythmia. Single and multi-component non-pharmacological interventions did not connect to any evidence networks to allow for ranking and comparisons as planned; pairwise comparisons did not detect differences compared to standard care.

CONCLUSION

Compared to placebo and benzodiazepines, we found dexmedetomidine likely reduced the occurrence of delirium in critically ill adults. Compared to benzodiazepines, sedation-minimization strategies may also reduce delirium occurrence, but the evidence is uncertain.

The pharmacist's role in implementation of the ABCDEF bundle into clinical practice

PURPOSE

To summarize published data regarding implementation of the ABCDEF bundle, a multicomponent process for avoidance of oversedation and prolonged ventilation in intensive care unit (ICU) patients; discuss pertinent literature to support each bundle element; and discuss the role of the pharmacist in coordinating bundle elements and implementation of the ABCDEF bundle into clinical practice.

SUMMARY

Neuromuscular weakness and ICU-acquired weakness are common among critically ill patients and associated with significant cost and societal burdens. Recent literature supporting early liberation from mechanical ventilation and early mobilization has demonstrated improved short- and long-term outcomes. With expanded use of pharmacy services in the ICU setting, pharmacists are well positioned to advocate for best care practices in ICUs. A dedicated, interprofessional team is necessary for the implementation of the ABCDEF bundle in inpatient clinical practice settings. As evidenced by a number of studies, successful implementation of the ABCDEF bundle derives from involvement by motivated and highly trained individuals, timely completion of individual patient care tasks, and effective leadership to ensure proper implementation and ongoing support. Factors commonly identified by clinicians as barriers to bundle implementation in clinical practice include patient instability and safety concerns, lack of knowledge, staff concerns, unclear protocol criteria, and lack of interprofessional team care coordination. This narrative review discusses research on bundle elements and recommendations for application by pharmacists in clinical practice.

CONCLUSIONS

Despite the benefits associated with implementation of the ABCDEF bundle, evidence suggests that the recommended interventions may not be routinely used within the ICU. The pharmacist provides the expertise and knowledge for adoption of the bundle into everyday clinical practice.

Prevention and treatment of delirium in intensive care: Hermeneutics of experiences of the nursing team

OBJECTIVE

To understand the experiences in nursing care in the prevention and treatment of delirium in people hospitalized in intensive care units.

METHODOLOGY

Hermeneutic phenomenological qualitative study. The selection of participants was by intentional sampling: seven nursing assistants and eight nurses. Theoretical saturation was achieved. The phenomenological interview was applied to collect data from a central question and the analysis was carried out following the approaches of Heidegger's hermeneutical circle.

RESULTS

Four significant themes emerged from the analysis: 1) Delirium prevention, 2) Pharmacological treatment, 3) Non-pharmacological treatment, and 4) Barriers to non-pharmacological treatment. These themes were accompanied by 35 interrelated units of meaning: in the first theme, the most repetitive units were communication, orientation, and family bonding; in the second was the use of pharmacological treatment only in the acute phase; in the third was the modification of the environment according to the patient's preference (where the family is a priority and strategies that provide cognitive and social stimulation can be reinforced), and in the fourth was the work overload for the nursing team.

CONCLUSIONS

The experiences of the nursing team in the prevention and treatment of delirium in critically ill patients highlight that communication allows an approach to the patient as a human being immersed in a reality, with a personal history, needs and preferences. Therefore, family members must be involved in these scenarios, as they can complement and support nursing care.

Evaluation of the effectiveness of delirium prevention care protocol for the patients with hip fracture: A randomised controlled study

AIMS AND OBJECTIVES

This study aimed to investigate the effectiveness of a delirium prevention care protocol on pain, functional status, sleep quality and delirium prevention in patients with hip fractures.

BACKGROUND

The development of delirium following hip fracture is common among older patients. According to the National Institute for Health and Care Excellence, 30% of delirium cases are preventable. The prevention of delirium, a multifactorial syndrome, can be achieved through a multicomponent care protocol that targets specific risk factors for delirium.

DESIGN

A randomised controlled study was conducted according to the CONSORT 2010 guidelines. The Clinical Trial Registry number is NCT04188795.

METHODS

A total of 84 patients were assigned to two groups by block randomisation. The intervention group (n = 41) received nursing care according to a protocol and the control group (n = 43) received standard nursing care. Study data were collected using the demographic information form, the Confusion Assessment Method-Intensive Care Unit (CAM-ICU), the Barthel Index, the Mini Nutritional Assessment-short form and the Richards-Campbell Sleep Questionnaire (RCSQ). The pain of the patients was assessed by using a Visual Analog Scale (VAS).

RESULTS

The mean age of the patients was 80.6 years (standard deviation 8.0; range 65.0- 97.5 years), and the percentage of the male patients were 36.3%. No statistically significant differences were found between the groups in terms of pain and functional status in the preoperative period, on the first postoperative day, or in the predischarge period (p > 0.05 for each). The sleep quality of patients in the intervention group was significantly better than in the control group for all three time measurements (p < 0.05 for each). While 15% of patients in the control group developed delirium, no patient in the intervention group developed delirium (x² =6.486, p = 0.026).

CONCLUSION

This study demonstrated that a delirium prevention care protocol may reduce the incidence of delirium and improve sleep quality.

RELEVANCE TO PRACTICE

The study highlighted that nurses can contribute to preventing patients' delirium using nonpharmacologic and independent nursing interventions.

Effectiveness of Bundle Interventions on ICU Delirium: A Meta-Analysis

OBJECTIVE

To evaluate the impact of bundle interventions on ICU delirium prevalence, duration, and other patients' adverse outcomes.

DATA SOURCES

The Cochrane Library, PubMed, CINAHL, EMBASE, PsychINFO, and MEDLINE from January 2000 to July 2020. The protocol of the study was registered in International prospective register of systematic reviews (CRD42020163147).

STUDY SELECTION

Randomized clinical trials or cohort studies that examined the following outcomes were included in the current study: ICU delirium prevalence and duration, proportion of patient-days with coma, ventilator-free days, mechanical ventilation days, ICU or hospital length of stay, and ICU or inhospital or 28-day mortality.

DATA EXTRACTION

Using a standardized data-collection form, two authors screened the studies and extracted the data independently, and assessed the studies' quality using the Modified Jadad Score Scale for randomized clinical trials and the Newcastle-Ottawa Scale for cohort studies.

DATA SYNTHESIS

Eleven studies with a total of 26,384 adult participants were included in the meta-analysis. Five studies (three randomized clinical trials and two cohort studies) involving 18,638 patients demonstrated that ICU delirium prevalence was not reduced (risk ratio = 0.92; 95% CI, 0.68-1.24). Meta-analysis showed that the use of bundle interventions was not associated with shortening the duration of ICU delirium (mean difference = -1.42 d; 95% CI, -3.06 to 0.22; two randomized clinical trials and one cohort study), increasing ventilator-free days (mean difference = 1.56 d; 95% CI, -1.56 to 4.68; three randomized clinical trials), decreasing mechanical ventilation days (mean difference = -0.83 d; 95% CI, -1.80 to 0.14; four randomized clinical trials and two cohort studies), ICU length of stay (mean difference = -1.08 d; 95% CI, -2.16 to 0.00; seven randomized clinical trials and two cohort studies), and inhospital mortality (risk ratio = 0.86; 95% CI, 0.70-1.06; five randomized clinical trials and four cohort studies). However, bundle interventions are effective in reducing the proportion of patient-days experiencing coma (risk ratio = 0.47; 95% CI, 0.39-0.57; two cohort studies), hospital length of stay (mean difference = -1.47 d; 95% CI, -2.80 to -0.15; four randomized clinical trials and one cohort study), and 28-day mortality by 18% (risk ratio = 0.82; 95% CI, 0.69-0.99; three randomized clinical trials).

CONCLUSIONS

This meta-analysis fails to support that bundle interventions are effective in reducing ICU delirium prevalence and duration, but supports that bundle interventions are effective in reducing the proportion of patient-days with coma, hospital length of stay, and 28-day mortality. Larger randomized clinical trials are needed to evaluate the impact of bundle interventions on ICU delirium and other clinical outcomes.

The family in preventing delirium in the intensive care unit: Scoping review

INTRODUCTION

Delirium is cognitive impairment related to negative inpatient outcomes in the Intensive Care Unit (ICU), family interventions have been shown to be effective in reducing the incidence of this condition.

OBJECTIVE

To identify strategies that include the family in the prevention of delirium in the adult intensive care unit that can be integrated into ABCDEF.

INCLUSION CRITERIA

Studies describing actions and interventions involving caregivers and family members in the ICU for the prevention of delirium, conducted in the last five years, available in full text, in English and Spanish, Portuguese and in adults.

METHODS

A scope review was conducted using the keywords "Critical Care, Delirium, Family, Primary Prevention" in 11 databases (PubMed, Virtual Health Library, Cochrane Library, TRIP Data base, EBSCO, Ovid Nursing, Springer, Scopus, Dialnet, Scielo, Lilacs) and other sources (Open Gray, Google Scholar), between August - October 2019; 8 studies were considered relevant and were analysed.

RESULTS

The results were described in 3 categories: flexibility vs. restriction of visits in the ICU, Reorientation as a prevention strategy and post-ICU syndrome in the family.

CONCLUSION

Extended visits, development of family-mediated activities, and redirection are non-pharmacological strategies that reduce the incidence of delirium in the ICU and offer multiple benefits to the patient and family/caregiver.

Implementation of ABCDEF care bundle in intensive care units: A cross-sectional survey

BACKGROUND

Delirium affects up to 80% of patients in intensive care units (ICUs) and is associated with higher mortality, physical dependence, and health care costs. The 2018 pain, agitation, delirium, immobility, and sleep guideline recommended ABCDEF care bundle for delirium prevention and management. However, limited information is available regarding the adoption of the care bundle in ICUs in Mainland China.

AIMS AND OBJECTIVES

To assess the current implementation of the ABCDEF care bundle for delirium prevention as reported by ICU nurses in Mainland China.

DESIGN

A cross-sectional study was conducted.

METHODS

A cross-sectional online survey using a validated questionnaire about the practices of the ABCDEF care bundle was conducted among 334 registered nurses in 167 ICUs of 65 cities in Mainland China.

RESULTS

Almost 50% of the sampled ICU nurses were unaware of the ABCDEF care bundle, though 86.83% of the surveyed ICUs implemented pain assessments and 95.51% implemented sedation assessments. Nearly half (46.41%) of the surveyed ICUs performed routine spontaneous awaking trials, with 21.26% performing them daily. Spontaneous breathing trials were performed in 38.32% of the surveyed ICUs. Only 47% of the surveyed ICUs routinely monitored patients for delirium. About one-third (38.35%) of the surveyed ICUs were supported by specialist teams that implemented the mobilization programmes. Most ICUs restricted the duration of family visits per day (<0.5 hour: 61.67%; 0.5-2 hours: 23.65%; >2 hours: 3.29%) and only 28.14% of the surveyed ICUs employed dedicated staff to support the families.

CONCLUSIONS

Although most of the surveyed ICUs implemented pain and sedation assessments, many of them did not implement structured delirium assessments. Early mobilization programmes and family participation should be encouraged.

RELEVANCE TO CLINICAL PRACTICE

Promoting the uses of a reliable delirium assessment tool such as Confusion Assessment Method for Intensive Care Unit patients, building an early mobilization team, and engaging family caregivers in the care plan may contribute to improved patients' clinical outcomes.

Sleep Deprivation in the Intensive Care Patient

TOPIC

Sleep deprivation in the intensive care unit setting.

CLINICAL RELEVANCE

The Society of Critical Care Medicine has identified sleep deprivation as a significant contributor to the development of delirium in adult patients in the intensive care unit. Thus, preventing and managing sleep deprivation is important in reducing the incidence of delirium in this patient population. A multifaceted and multidisciplinary approach to promoting sleep in the intensive care unit setting that includes sleep hygiene routines, nursing care plans, and appropriate medication regimens may improve patient outcomes, including reducing delirium.

PURPOSE OF ARTICLE

To review the current literature on sleep deprivation in the intensive care unit setting and present care guidelines in a concise format. This information may be helpful in the development of clinical tools and may guide future quality improvement projects aimed at reducing delirium through sleep promotion in critical care patients.

CONTENT COVERED

A review of current literature and national organization recommendations revealed consistent themes in addressing the problem of sleep deprivation in the intensive care unit. Modifiable and nonmodifiable risk factors included frequent care interactions, light, noise, medication effects, and preexisting sleep problems.

Effects of nonpharmacological delirium-prevention interventions on critically ill patients' clinical, psychological, and family outcomes: A systematic review and meta-analysis

BACKGROUND

Delirium is common in critically ill patients and may lead to severe complications, such as falls and injuries. Nonpharmacological interventions have been widely suggested to prevent delirium, yet the effects remain uncertain.

OBJECTIVES

The aim of the study was to determine the effects of nonpharmacological interventions on preventing delirium and improving critically ill patients' clinical, psychological, and family outcomes.

METHODS

Ten databases were searched from their inception to September 2020. Two reviewers assessed the methodological quality and extracted details of the included studies. The data were narratively or statistically pooled where appropriate. Dichotomous variables are presented as odds ratio (OR), and continuous variables are presented as mean difference (MD). The Grading of Recommendations Assessment, Development, and Evaluation criteria were used to assess the quality of evidence for each review outcome.

RESULTS

Thirty-four studies (10 randomised controlled trials, eight controlled clinical trials, and 16 before-and-after studies) were included in the analysis. Low-certainty evidence indicated that nonpharmacological interventions reduced delirium incidence (OR = 0.43, 95% confidence interval [CI] [0.33, 0.55]), delirium duration (MD = -1.43 days, 95% CI [-1.94, 0.92]), and length of stay in the intensive care unit (MD = -1.24 days, 95% CI [-2.05, -0.43]). Moderate-certainty evidence demonstrated no effect on mortality. Narrative synthesis further implied improvements in patients' psychological recovery (two studies, very low-certainty evidence) and families' satisfaction with care (two studies, very low-certainty evidence) through nonpharmacological interventions. As for effective intervention types, moderate-certainty evidence demonstrates that early mobilisation (OR = 0.33, 95% CI [0.24, 0.46], five studies, 859 participants, I² = 24%), family participation (OR = 0.25, 95% CI [0.18, 0.34], four studies, 997 participants, I² = 21%), and use of multicomponent interventions (OR = 0.48, 95% CI [0.34, 0.69], 13 studies, 3172 participants, I² = 77%) are associated with reduced incidence of delirium.

CONCLUSIONS

Healthcare professionals are recommended to apply early mobilisation, family participation, or multicomponent interventions in clinical practice to prevent delirium. Further studies investigating the effects of nonpharmacological interventions on patients' psychological and family outcomes are warranted.

'Statistical significance' in research: wider strategies to meaningfully interpret findings

BACKGROUND

The P -value is frequently used in research to determine the probability that the results of a study are chance findings. A value less than 0.05 was once typically considered only to mean that results are 'statistically significant', as it indicates the chance they are false positives is less than one in 20 (5%). However, P<0.05 has transcended into meaning a study has had positive findings and its results are true and meaningful, increasing the likelihood it will be published. This has led to researchers over-emphasising the importance of the P-value, which may lead to a wrong conclusion and unethical research practices.

AIM

To explain what the P -value means and explore its role in determining results and conclusions in quantitative research.

DISCUSSION

Some researchers are calling for a move away from using statistical significance towards meaningful interpretation of findings. This would require all researchers to consider the magnitude of the effect of their findings, contemplate findings with less certainty, and place a greater emphasis on logic to support or refute findings - as well as to have the courage to consider findings from multiple perspectives.

CONCLUSION

The authors argue that researchers should not abandon P -values but should move away from compartmentalising research findings into two mutually exclusive categories: 'statistically significant' and 'statistically insignificant'. They also recommend that researchers consider the magnitudes of their results and report whether findings are meaningful, rather than simply focusing on P -values.

IMPLICATIONS FOR PRACTICE

Lessening the importance of statistical significance will improve the accuracy of the reporting of results and see research disseminated based on its clinical importance rather than statistical significance. This will reduce the reporting of false positives and the overstatement of effects.

Frailty, delirium and hospital mortality of older adults admitted to intensive care: the Delirium (Deli) in ICU study

BACKGROUND

Clinical frailty among older adults admitted to intensive care has been proposed as an important determinant of patient outcomes. Among this group of patients, an acute episode of delirium is also common, but its relationship to frailty and increased risk of mortality has not been extensively explored. Therefore, the aim of this study was to explore the relationship between clinical frailty, delirium and hospital mortality of older adults admitted to intensive care.

METHODS

This study is part of a Delirium in Intensive Care (Deli) Study. During the initial 6-month baseline period, clinical frailty status on admission to intensive care, among adults aged 50 years or more; acute episodes of delirium; and the outcomes of intensive care and hospital stay were explored.

RESULTS

During the 6-month baseline period, 997 patients, aged 50 years or more, were included in this study. The average age was 71 years (IQR, 63-79); 55% were male (n = 537). Among these patients, 39.2% (95% CI 36.1-42.3%, n = 396) had a Clinical Frailty Score (CFS) of 5 or more, and 13.0% (n = 127) had at least one acute episode of delirium. Frail patients were at greater risk of an episode of delirium (17% versus 10%, adjusted rate ratio (_adjRR) = 1.71, 95% confidence interval (CI) 1.20-2.43, p = 0.003), had a longer hospital stay (2.6 days, 95% CI 1-7 days, p = 0.009) and had a higher risk of hospital mortality (19% versus 7%, _adjRR = 2.54, 95% CI 1.72-3.75, p < 0.001), when compared to non-frail patients. Patients who were frail and experienced an acute episode of delirium in the intensive care had a 35% rate of hospital mortality versus 10% among non-frail patients who also experienced delirium in the ICU.

CONCLUSION

Frailty and delirium significantly increase the risk of hospital mortality. Therefore, it is important to identify patients who are frail and institute measures to reduce the risk of adverse events in the ICU such as delirium and, importantly, to discuss these issues in an open and empathetic way with the patient and their families.

The effect of non-pharmacologic strategies on prevention or management of intensive care unit delirium: a systematic review

Background: Post-operative delirium is a common complication among adult patients in the intensive care unit. Current literature does not support the use of pharmacologic measures to manage this condition, and several studies explore the potential for the use of non-pharmacologic methods such as early mobility plans or environmental modifications. The aim of this systematic review is to examine and report on recently available literature evaluating the relationship between non-pharmacologic management strategies and the reduction of delirium in the intensive care unit. Methods: Six major research databases were systematically searched for articles analyzing the efficacy of non-pharmacologic delirium interventions in the past five years. Search results were restricted to adult human patients aged 18 years or older in the intensive care unit setting, excluding terminally ill subjects and withdrawal-related delirium. Following title, abstract, and full text review, 27 articles fulfilled the inclusion criteria and are included in this report. Results: The 27 reviewed articles consist of 12 interventions with a single-component investigational approach, and 15 with multi-component bundled protocols. Delirium incidence was the most commonly assessed outcome followed by duration. Family visitation was the most effective individual intervention while mobility interventions were the least effective. Two of the three family studies significantly reduced delirium incidence, while one in five mobility studies did the same. Multi-component bundle approaches were the most effective of all; of the reviewed studies, eight of 11 bundles significantly improved delirium incidence and seven of eight bundles decreased the duration of delirium. Conclusions: Multi-component, bundled interventions were more effective at managing intensive care unit delirium than those utilizing an approach with a single interventional element. Although better management of this condition suggests a decrease in resource burden and improvement in patient outcomes, comparative research should be performed to identify the importance of specific bundle elements.

The effect of non-pharmacologic strategies on prevention or management of intensive care unit delirium: a systematic review

Background: Post-operative delirium is a common complication among adult patients in the intensive care unit. Current literature does not support the use of pharmacologic measures to manage this condition, and several studies explore the potential for the use of non-pharmacologic methods such as early mobility plans or environmental modifications. The aim of this systematic review is to examine and report on recently available literature evaluating the relationship between non-pharmacologic management strategies and the reduction of delirium in the intensive care unit. Methods: Six major research databases were systematically searched for articles analyzing the efficacy of non-pharmacologic delirium interventions in the past five years. Search results were restricted to adult human patients aged 18 years or older in the intensive care unit setting, excluding terminally ill subjects and withdrawal-related delirium. Following title, abstract, and full text review, 27 articles fulfilled the inclusion criteria and are included in this report. Results: The 27 reviewed articles consist of 12 interventions with a single-component investigational approach, and 15 with multi-component bundled protocols. Delirium incidence was the most commonly assessed outcome followed by duration. Family visitation was the most effective individual intervention while mobility interventions were the least effective. Two of the three family studies significantly reduced delirium incidence, while one in five mobility studies did the same. Multi-component bundle approaches were the most effective of all; of the reviewed studies, eight of 11 bundles significantly improved delirium incidence and seven of eight bundles decreased the duration of delirium. Conclusions: Multi-component, bundled interventions were more effective at managing intensive care unit delirium than those utilizing an approach with a single interventional element. Although better management of this condition suggests a decrease in resource burden and improvement in patient outcomes, comparative research should be performed to identify the importance of specific bundle elements.

The effect of non-pharmacologic strategies on prevention or management of intensive care unit delirium: a systematic review

Background: Post-operative delirium is a common complication among adult patients in the intensive care unit. Current literature does not support the use of pharmacologic measures to manage this condition, and several studies explore the potential for the use of non-pharmacologic methods such as early mobility plans or environmental modifications. The aim of this systematic review is to examine and report on recently available literature evaluating the relationship between non-pharmacologic management strategies and the reduction of delirium in the intensive care unit. Methods: Six major research databases were systematically searched for articles analyzing the efficacy of non-pharmacologic delirium interventions in the past five years. Search results were restricted to adult human patients aged 18 years or older in the intensive care unit setting, excluding terminally ill subjects and withdrawal-related delirium. Following title, abstract, and full text review, 27 articles fulfilled the inclusion criteria and are included in this report. Results: The 27 reviewed articles consist of 12 interventions with a single-component investigational approach, and 15 with multi-component bundled protocols. Delirium incidence was the most commonly assessed outcome followed by duration. Family visitation was the most effective individual intervention while mobility interventions were the least effective. Two of the three family studies significantly reduced delirium incidence, while one in five mobility studies did the same. Multi-component bundle approaches were the most effective of all; of the reviewed studies, eight of 11 bundles significantly improved delirium incidence and seven of eight bundles decreased the duration of delirium. Conclusions: Multi-component, bundled interventions were more effective at managing intensive care unit delirium than those utilizing an approach with a single interventional element. Although better management of this condition suggests a decrease in resource burden and improvement in patient outcomes, comparative research should be performed to identify the importance of specific bundle elements.

Non-pharmacological interventions to reduce the incidence and duration of delirium in critically ill patients: A systematic review and network meta-analysis

OBJECTIVE

To compare non-pharmacological interventions in their ability to prevent delirium in critically ill patients, and find the optimal regimen for treatment.

METHODS

Literature searches were conducted using PubMed, Embase, CINAHL, and Cochrane Library databases until the end of June 2019. We estimated the risk ratios (RRs) for the incidence of delirium and in-hospital mortality and found the mean difference (MD) for delirium duration and the length of ICU stay. The probabilities of interventions were ranked based on clinical outcomes. The study was registered on PROSPERO (CRD42020160757).

RESULTS

Twenty-six eligible studies were included in the network meta-analysis. Studies were grouped into seven intervention types: physical environment intervention (PEI), sedation reducing (SR), family participation (FP), exercise program (EP), cerebral hemodynamics improving (CHI), multi-component studies (MLT) and usual care (UC). In term of reducing the incidence of delirium, the two most effective interventions were FP (risk ratio (RR) 0.19, 95% confidence interval (CI) 0.08 to 0.44; surface under the cumulative ranking curve (SUCRA) = 94%) and MLT (RR 0.43, 95% CI 0.30 to 0.57; SUCRA = 68%) compared with observation. Although all interventions demonstrated nonsignificant efficacy in regards to delirium duration and the length of the patient's stay in the ICU, MLT (SUCRA = 78.6% and 71.2%, respectively) was found to be the most effective intervention strategy. In addition, EP (SUCRA = 97.2%) facilitated a significant reduction in hospital mortality, followed in efficacy by MLT (SUCRA = 73.2%), CHI (SUCRA = 35.8%), PEI (SUCRA = 34.8%), and SR (SUCRA = 31.8%).

CONCLUSIONS

Multi-component strategies are overall the optimal intervention techniques for preventing delirium and reducing ICU length of stay in critically ill patients by way of utilizing several interventions simultaneously. Additionally, family participation as a method of patient-centered care resulted in better outcomes for reducing the incidence of delirium.

Non-Pharmacologic Multicomponent Interventions Preventing Delirium in Hospitalized People

BACKGROUND/OBJECTIVES

Delirium is a common neurobehavioral complication in hospitalized patients with a high prevalence in various clinical settings. Prevention of delirium is critical due to its common occurrence and associated poor outcomes. Our objective was to evaluate the efficacy of multicomponent interventions in preventing incident delirium in hospitalized patients at risk.

DESIGN

Systematic review and meta-analysis.

SETTING

Hospital.

PARTICIPANTS

We included a study if it was a randomized controlled trial and was evaluating effects of coordinated non-pharmacologic multicomponent interventions in the prevention of delirium.

MEASUREMENTS

We performed a systematic literature search in PubMed and CENTRAL (PROSPERO: CRD42019138981; last update May 24, 2019). We assessed the quality of included studies by using the criteria established by the Cochrane Collaboration. We extracted the measured outcomes for delirium incidence, duration of delirium, length of hospital stay, falls during hospital stay, discharge to institutional care, and inpatient mortality.

RESULTS

In total, we screened 1,027 eligible records and included eight studies with 2,105 patients in the review. We found evidence of an effect (ie, reduction) of multicomponent interventions on the incidence of delirium (risk ratio = .53; 95% confidence interval = .41-.69; I² = 0). We detected no clear evidence of an effect for delirium duration, length of hospital stay, accidental falls, and mortality. Subgroup analyses did not result in findings of substantial effect modifiers, which can be explained by the high homogeneity within studies.

CONCLUSION

Our findings confirm the current guidelines that multicomponent interventions are effective in preventing delirium. Data are still lacking to reach evidence-based conclusions concerning potential benefits for hard outcomes such as length of hospital stay, return to independent living, and mortality. J Am Geriatr Soc 68:1864-1871, 2020.

Delirium in intensive care: A stepped-wedge cluster randomised controlled trial for a nurse-led intervention to reduce the incidence and duration of delirium among adults admitted to the intensive care unit (protocol)

BACKGROUND

Delirium is an acute disorder of attention and cognition with the highest rates among adults receiving intensive care. An acute episode of delirium is associated with morbidity and mortality, as well as a significant psychological sequela. Importantly, an increasing body of evidence supports the benefit of nonpharmacological, nurse-led interventions to reduce the incidence and duration of delirium among adults cared for in the intensive care unit (ICU).

OBJECTIVES

This study will evaluate the impact of a nursing-led delirium prevention protocol that is aimed at reducing the incidence and duration of delirium among adults admitted to the ICU. The delirium prevention nursing protocol specifically targets risk factors for delirium.

STUDY PLAN

A stepped-wedge cluster randomised controlled trial approach will be used to assess the effectiveness of the nurse-led intervention, in four adult ICUs across the South Western Sydney Local Health District (SWS-LHD), over a 12-month period. The primary outcomes of interest are (i) the incidence of delirium before and after the implementation of the nurse-led intervention and (ii) the number of delirium-free days during an ICU stay, before and after the implementation of the nurse-led intervention.

TRIAL REGISTRATION

Australian New Zealand Clinical Trials Registry (ANZCTR): (ACTRN12618000411246p).

Clinical Practice Guidelines for the Prevention and Management of Pain, Agitation/Sedation, Delirium, Immobility, and Sleep Disruption in Adult Patients in the ICU

OBJECTIVE

To update and expand the 2013 Clinical Practice Guidelines for the Management of Pain, Agitation, and Delirium in Adult Patients in the ICU.

DESIGN

Thirty-two international experts, four methodologists, and four critical illness survivors met virtually at least monthly. All section groups gathered face-to-face at annual Society of Critical Care Medicine congresses; virtual connections included those unable to attend. A formal conflict of interest policy was developed a priori and enforced throughout the process. Teleconferences and electronic discussions among subgroups and whole panel were part of the guidelines' development. A general content review was completed face-to-face by all panel members in January 2017.

METHODS

Content experts, methodologists, and ICU survivors were represented in each of the five sections of the guidelines: Pain, Agitation/sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption). Each section created Population, Intervention, Comparison, and Outcome, and nonactionable, descriptive questions based on perceived clinical relevance. The guideline group then voted their ranking, and patients prioritized their importance. For each Population, Intervention, Comparison, and Outcome question, sections searched the best available evidence, determined its quality, and formulated recommendations as "strong," "conditional," or "good" practice statements based on Grading of Recommendations Assessment, Development and Evaluation principles. In addition, evidence gaps and clinical caveats were explicitly identified.

RESULTS

The Pain, Agitation/Sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption) panel issued 37 recommendations (three strong and 34 conditional), two good practice statements, and 32 ungraded, nonactionable statements. Three questions from the patient-centered prioritized question list remained without recommendation.

CONCLUSIONS

We found substantial agreement among a large, interdisciplinary cohort of international experts regarding evidence supporting recommendations, and the remaining literature gaps in the assessment, prevention, and treatment of Pain, Agitation/sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption) in critically ill adults. Highlighting this evidence and the research needs will improve Pain, Agitation/sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption) management and provide the foundation for improved outcomes and science in this vulnerable population.