Monitoring and optimising outcomes of survivors of critical illness

Factors and health-related quality of life associated with participation in a post-ICU follow-up. A register study

BACKGROUND

Follow-up for heterogeneous intensive care patients presents challenges for rehabilitation interventions and outcome measurements. The aim was to describe and explore characteristics and determinants for visiting/not visiting a nurse-led clinic (NLC) at different time-points, and to describe physical and mental health (HRQoL) over time.

METHODS

Patients with a length of stay (LOS) of ≥72 hours, discharged from a general intensive care unit 2004-2014, who participated in a 6-month follow-up programme offering visits to NLC at 2 and 6 months were included. The register study includes information regarding patients' participation in NLC, clinical and demographic data from the Patient Administrative System within Intensive care, and data on 2-, 6- and 12-month HRQoL by using SF-36 from the Swedish Intensive Care Registry.

RESULTS

Of 656 patients, 57% visited the NLC on some occasion. These patients were younger (P = .000), had lower Simplified Acute Physiology scores (P = .001) and higher SF-36 physical health domain scores at 2 months (P < .05) compared to those not visiting at all. Visitors at 2 months only were younger, had shorter LOS and higher physical and mental domain scores than patients visiting at 6 months only. Patients visiting the NLC scored significantly higher in all domains from 2 to 12 months, whereas non-visiting-patients' did this in four out of eight domains during the same time frame.

CONCLUSION

Individual patient's characteristics and current health conditions seem to influence visits to NLC or not. The findings may contribute to the development of existing routines to match the diversity of patients' needs and life situations.

Impact of Patient and Family Involvement in Long-Term Outcomes

Surviving a critical illness can have long-term effects on both patients and families. These effects can be physical, emotional, cognitive, and social, and they affect both the patient and the family. Family members play a key role in helping their loved one recover, and this recovery process can take considerable time. Transferring out of an intensive care unit, and discharging home from a hospital, are important milestones, but they represent only the beginning of recovery and healing after a critical illness. Recognizing that these challenges exist both for patients and families is important to improve critical illness outcomes.

Stimulated by insight: Exploration of critical care nurses' experience of research participation in a recovery programme for intensive care survivors

AIMS AND OBJECTIVES

To explore critical care nurses' experiences of research participation during a one-year recovery programme for intensive care survivors.

BACKGROUND

Nurse-led postintensive care follow-up consultations have emerged to help patients to recover and overcome problems related to critical illness and admission at the intensive care unit (ICU). Previous research exploring post-ICU follow-up programmes have shown inconclusive evidence of their effectiveness on patient-reported outcome measurements, and provider evaluation is scarce. The context of this study is the Recovery and Aftercare in Postintensive care Therapy (RAPIT) trial.

DESIGN

A qualitative descriptive telephone interview study.

METHODS

Data were collected after completion of the RAPIT trial. Participants (n = 14) were trained intensive care nurses, who delivered the post-ICU recovery programme, representing nine out of ten sites from the RAPIT trial. Two focus group discussions were used to construct a semistructured interview guide. A thematic data analysis was performed using Braun and Clark's six-step method. This study conforms to the COREQ Research Reporting Guidelines for qualitative studies.

RESULTS

Our study indicated that nurses considered participation in research as a positive experience. The main finding "Stimulated by insight" described how nurses' engagement and professional growth was gained by reflection, patient feedback and research competencies acquired in the clinical setting. The research programmes stimulated to new knowledge, broaden their perspectives and enhanced critical reflection of ICU nursing practice.

CONCLUSIONS

The study indicates that nurses developed research competencies and enhanced their job satisfaction by using critical reflection and patient feedback. However, there is still a substantial need for support to strengthen nurses' competencies in collaboration with colleagues, managers and researchers.

RELEVANCE TO CLINICAL PRACTICE

This study can contribute to the development of recommendations supporting nurses doing research and to optimise implementation of clinical research.

Classification of propofol-induced sedation states using brain connectivity analysis

connectivity measurements can provide key information about ongoing brain processes. In this paper, we propose to investigate the performance of the binary classification of Propofol-induced sedation states using partial granger causality analysis. Based on the brain connectivity measurements obtained from EEG signals in a database that contains four sedation states: baseline, mild, moderate, and recovery, we consider eight sensors and evaluate the area under the ROC curve with five classifiers: the k-nearest neighbor (density method), support vector machine, linear discriminant analysis, Bayesian discriminant analysis, and a model based on extreme learning machine. The results support the conclusion that the different Propofol-induced sedation states can be identified with an AUC of around 0.75, by considering signal segments of only 4 second. These results highlight the discriminant power that can be obtained from scalp level connectivity measures for online brain monitoring.

Intervention fidelity in postintensive care follow-up consultations at ten sites in the RAPIT-trial: A mixed-methods evaluation

AIM

The aim of the study was to evaluate intervention fidelity of nurses' delivery of the RAPIT recovery program for postintensive care patients.

BACKGROUND

Interventions addressing patient problems after intensive care lack description of the process of delivery and the evidence of their effectiveness. This is needed to understand how these interventions work.

DESIGN

Multistage intervention framework in a mixed-methods design. Intervention fidelity strategies were assessed for intervention design, training, delivery, receipt, and enactment with quantitative and qualitative methods inspired by the Medical Research Council and the National Institutes of Health Fidelity Framework.

METHODS

Data collection was embedded in a multicenter randomized controlled trial to explore intervention fidelity of a recovery program (December 2012-February 2017). Ten Danish intensive care units participated in the RAPIT-trial including 386 patients and 27 nurses. Quantitative data covered training and delivery. Qualitative data explored design, quality of delivery, receipt, and enactment seen from nurses' and patients' perspectives. Data were analysed statistically and by systematic deductive-inductive thematic analysis.

FINDINGS

A framework for participatory enactment of a complex intervention was developed and demonstrated delivery with high consistent fidelity across sites. Low delivery doses and variations were related to the program, patient, provider nurses and context.

CONCLUSION

Our study provides insight into the process of intervention fidelity of a nurse-led postintensive care recovery program and potentially enables professionals to understand key factors in cross-site implementation. Although we demonstrate consistent delivery and variations suggest that some patients may benefit more than others.

Improving Quality of Life in Patients at Risk for Post-Intensive Care Syndrome

Objective

To improve quality of life (QOL) in patients at risk for post-intensive care syndrome (PICS).

Patients and Methods

We conducted a mixed-method, prospective, observational, pre-post interventional study in an adult medical and mixed medical/surgical/transplant intensive care unit (ICU) at a tertiary academic hospital. Preintervention included patients admitted from October 1 through October 31, 2016, and postintervention included patients admitted from January 15 through February 14, 2017. First, a multidisciplinary team of stakeholders identified barriers associated with decreased QOL in patients at risk for PICS. Next, interventions were designed and implemented. The effect of interventions was assessed using a mixed-method analysis. The qualitative analysis used a modified grounded theory approach. The quantitative analysis included assessment of preexisting symptoms and risk factors associated with PICS. The 36-Item Short-Form Health Status Survey (SF-36), which surveys physical and mental composite scores, was used to assess QOL.

Results

Barriers identified were lack of awareness and understanding of PICS. Interventions included educational videos, paper and online education and treatment materials, and online and in-person support groups for education and treatment. After interventions, the qualitative analysis found that patients who participated in the interventions after hospital discharge showed improved QOL, whereas education during hospitalization alone was not effective. The quantitative analysis did not find improvement in QOL, as defined by SF-36 physical or mental composite scores.

Conclusion

Interventions targeted to patients after hospitalization may offer subjective improvement in QOL for those at risk for PICS.

Follow-up services for improving long-term outcomes in intensive care unit (ICU) survivors

BACKGROUND

The intensive care unit (ICU) stay has been linked with a number of physical and psychological sequelae, known collectively as post-intensive care syndrome (PICS). Specific ICU follow-up services are relatively recent developments in health systems, and may have the potential to address PICS through targeting unmet health needs arising from the experience of the ICU stay. There is currently no single accepted model of follow-up service and current aftercare programmes encompass a variety of interventions and materials. There is uncertain evidence about whether follow-up services effectively address PICS, and this review assesses this.

OBJECTIVES

Our main objective was to assess the effectiveness of follow-up services for ICU survivors that aim to identify and address unmet health needs related to the ICU period. We aimed to assess effectiveness in relation to health-related quality of life (HRQoL), mortality, depression and anxiety, post-traumatic stress disorder (PTSD), physical function, cognitive function, ability to return to work or education and adverse effects.Our secondary objectives were to examine different models of follow-up services. We aimed to explore: the effectiveness of service organisation (physician- versus nurse-led, face-to-face versus remote, timing of follow-up service); differences related to country (high-income versus low- and middle-income countries); and effect of delirium, which can subsequently affect cognitive function, and the effect of follow-up services may differ for these participants.

SEARCH METHODS

We searched CENTRAL, MEDLINE, Embase and CINAHL on 7 November 2017. We searched clinical trials registers for ongoing studies, and conducted backward and forward citation searching of relevant articles.

SELECTION CRITERIA

We included randomised and non-randomised studies with adult participants, who had been discharged from hospital following an ICU stay. We included studies that compared an ICU follow-up service using a structured programme and co-ordinated by a healthcare professional versus no follow-up service or standard care.

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed studies for inclusion, extracted data, assessed risk of bias, and synthesised findings. We used the GRADE approach to assess the certainty of the evidence.

MAIN RESULTS

We included five studies (four randomised studies; one non-randomised study), for a total of 1707 participants who were ICU survivors with a range of illness severities and conditions. Follow-up services were led by nurses in four studies or a multidisciplinary team in one study. They included face-to-face consultations at home or in a clinic, or telephone consultations or both. Each study included at least one consultation (weekly, monthly, or six-monthly), and two studies had up to eight consultations. Although the design of follow-up service consultations differed in each study, we noted that each service included assessment of participants' needs with referrals to specialist support if required.It was not feasible to blind healthcare professionals or participants to the intervention and we did not know whether this may have introduced performance bias. We noted baseline differences (two studies), and services included additional resources (two studies), which may have influenced results, and one non-randomised study had high risk of selection bias.We did not combine data from randomised studies with data from one non-randomised study. Follow-up services for improving long-term outcomes in ICU survivors may make little or no difference to HRQoL at 12 months (standardised mean difference (SMD) -0.0, 95% confidence interval (CI) -0.1 to 0.1; 1 study; 286 participants; low-certainty evidence). We found moderate-certainty evidence from five studies that they probably also make little or no difference to all-cause mortality up to 12 months after ICU discharge (RR 0.96, 95% CI 0.76 to 1.22; 4 studies; 1289 participants; and in one non-randomised study 79/259 deaths in the intervention group, and 46/151 in the control group) and low-certainty evidence from four studies that they may make little or no difference to PTSD (SMD -0.05, 95% CI -0.19 to 0.10, 703 participants, 3 studies; and one non-randomised study reported less chance of PTSD when a follow-up service was used).It is uncertain whether using a follow-up service reduces depression and anxiety (3 studies; 843 participants), physical function (4 studies; 1297 participants), cognitive function (4 studies; 1297 participants), or increases the ability to return to work or education (1 study; 386 participants), because the certainty of this evidence is very low. No studies measured adverse effects.We could not assess our secondary objectives because we found insufficient studies to justify subgroup analysis.

AUTHORS' CONCLUSIONS

We found insufficient evidence, from a limited number of studies, to determine whether ICU follow-up services are effective in identifying and addressing the unmet health needs of ICU survivors. We found five ongoing studies which are not included in this review; these ongoing studies may increase our certainty in the effect in future updates. Because of limited data, we were unable to explore whether one design of follow-up service is preferable to another, or whether a service is more effective for some people than others, and we anticipate that future studies may also vary in design. We propose that future studies are designed with robust methods (for example randomised studies are preferable) and consider only one variable (the follow-up service) compared to standard care; this would increase confidence that the effect is due to the follow-up service rather than concomitant therapies.

Propofol-induced sedation diminishes the strength of frontal-parietal-occipital EEG network

The level of conscious experience can be effectively and reversibly altered by the administration of sedative agents. Several studies attempted to explore the variations in frontal-parietal network during propofol-induced sedation. However, contradictory outcomes warrant further investigations. In this study, we implemented the Neural Gas algorithm-based delay symbolic transfer entropy (NG-dSTE) for investigation of frontal-parietal-occipital (F-P-O) network using scalp EEG signals recorded during altered levels of consciousness. Our results show significant disruption of the F-P-O network during mild and moderate levels of propofol sedation. In particular, the interaction between frontal and parietal-occipital region is highly disturbed. Moreover, we found measurable effect of sedation on local interactions in the frontal network whereas parietal-occipital network experienced least variations. The results support the conclusion that the connectivity based features can be utilized as reliable biomarker for assessment of sedation levels effectively.

Oral intake evaluation in patients following critical illness: an ICU cohort study

Timely and adequate nutrition improves health outcomes for the critically ill patient. Despite clinical guidelines recommending early oral nutrition, survivors of critical illness experience significant nutritional deficits. This cohort study evaluates the oral nutrition intake in intensive care unit (ICU) patients who have experienced recent critical illness. The oral nutrition intake of a convenience sample of ICU patients post-critical illness was observed during a 1-month period. Data pertaining to both the amount of oral nutrition intake and factors impacting optimal oral nutrition intake were collected and analysed. Inadequate oral intake was identified in 62% of the 79 patients assessed (n = 49). This was noted early in the ICU stay, around day 1-2, for most of the patients. A significant proportion (25%) of patients remained in the hospital with poor oral intake that persisted beyond ICU day 5. Unsurprisingly, these were the patients who had longer ICU stays. Critical illness weakness was a factor in the assessment of poor oral intake. To conclude, patients who have experienced critical illness also experience suboptimal oral nutrition. The three key factors that were identified as impacting optimal oral nutrition were early removal of nasogastric tubes, critical illness weakness and poor appetite post-critical illness. Seven key recommendations are made based on this cohort study. These recommendations are related to patient assessment, monitoring, documentation and future guidelines. Future research opportunities are highlighted, including the investigation of strategies to improve the transition of patients' post-critical illness to oral nutrition.

Towards a new orientation: a qualitative longitudinal study of an intensive care recovery programme

AIMS AND OBJECTIVES

To describe the patient experience of ICU recovery from a longitudinal perspective by analysing follow-up consultations at three time-points.

BACKGROUND

After a stay in the intensive care unit, patients risk physical and psychological problems during recovery. Follow-up after intensive care has emerged to aid psychological recovery, and improve health-related quality of life. More insight is needed into the mechanisms of intensive care recovery.

DESIGN

A descriptive multicenter longitudinal qualitative design.

METHODS

A subsample of 36 consultations with 12 patients strategically selected from a randomised controlled trial on intensive care recovery from 10 Danish intensive care units. Data were generated during an ICU recovery programme including three consultations (at 1-3, 4-5, 9-11 months). First consultation was face-to-face using patient photographs to aid memory. Second and third consultations were by telephone using reflection sheets to focus dialogue. Thematic analysis and narrative theory were used to explore mechanisms of recovery using audio-recordings of consultations, patient photographs and reflection sheets as the sources of data.

RESULTS

The basic narrative of recovery was 'toward a trajectory of new orientation'. This narrative contained the chronological narratives of being 'at death's door', 'still not out of the woods' and 'on the road to recovery'. The road to recovery was described as downhill, steady-state or progressive. New orientation was obtained in steady-state or progressive recovery.

CONCLUSIONS

This study provides a contemporary understanding of the process of intensive care recovery. Recovery evolves through narratives of mortal danger, risk of relapse and moving forward towards a new orientation in life.

RELEVANCE TO CLINICAL PRACTICE

These findings enable health care professionals to understand what patients experience during stages of recovery. This is important to improve health care professionals in the assessment of long-term outcome, and management of patients after intensive care.

The effect of augmenting early nutritional energy delivery on quality of life and employment status one year after ICU admission

Augmenting energy delivery during the acute phase of critical illness may reduce mortality and improve functional outcomes. The objective of this sub-study was to evaluate the effect of early augmented enteral nutrition (EN) during critical illness, on outcomes one year later. We performed prospective longitudinal evaluation of study participants, initially enrolled in The Augmented versus Routine approach to Giving Energy Trial (TARGET), a feasibility study that randomised critically ill patients to 1.5 kcal/ml (augmented) or 1.0 kcal/ml (routine) EN administered at the same rate for up to ten days, who were alive at one year. One year after randomisation Short Form-36 version 2 (SF-36v2) and EuroQol-5D-5L quality of life surveys, and employment status were assessed via telephone survey. At one year there were 71 survivors (1.5 kcal/ml 38 versus 1.0 kcal/ml 33; P=0.55). Thirty-nine (55%) patients consented to this follow-up study and completed the surveys (n = 23 and 16, respectively). The SF-36v2 physical and mental component summary scores were below normal population means but were similar in 1.5 kcal/ml and 1.0 kcal/ml groups (P=0.90 and P=0.71). EuroQol-5D-5L data were also comparable between groups (P=0.70). However, at one-year follow-up, more patients who received 1.5 kcal/ml were employed (7 versus 2; P=0.022). The delivery of 1.5 kcal/ml for a maximum of ten days did not affect self-rated quality of life one year later.

A multi-faceted, family-centred nutrition intervention to optimise nutrition intake of critically ill patients: The OPTICS feasibility study

BACKGROUND

Critically ill patients are at risk of developing malnutrition which contributes to functional decline and hospital re-admission. Strategies to promote nutritional intake have had a modest effect on protein-calorie intake. None have addressed the recovery trajectory of critical illness or incorporated family as advocates.

OBJECTIVES

We evaluated the feasibility and acceptability of a family-centred intervention designed to optimise nutrition during and following recovery from critical illness.

DESIGN

A prospective cohort study.

SETTING

Two Australian adult intensive care units.

PARTICIPANTS

A convenience sample of 49 patients and their families was recruited. Patients ≥18 years of age anticipated to require mechanical ventilation for at least 2 days were eligible, provided their family visited regularly and were able to communicate in English. Health care professionals including doctors (n=4), nurses (n=20) and dietitians (n=2) also participated.

METHODS

Demographic data were obtained from participants. Recruitment and retention informed study feasibility. Individual and group interviews informed participant views on the acceptability, perception of and experience with the intervention. Inductive analysis was used to analyse qualitative data.

RESULTS

187 (15.8%) patients met the eligibility criteria; 49 patients and 51 family members consented to participate for a 20.3% consent failure rate. We interviewed 33 (67.3%) family members and 13 (43.4%) patients, all of whom considered the intervention acceptable and who would participate in a similar intervention again, given the opportunity. Inductive analysis of qualitative data from all participants identified three themes: variability in in-hospital nutrition support, families as advocates for optimal nutrition, and partnering with health care providers.

CONCLUSION

We described a feasible and acceptable family centred intervention that may be effective in promoting nutrition intake in critically ill patients. Further research is required to examine contextual factors impacting implementation of family-centred interventions, particularly those that involve active family participation and advocacy.

Critical illness trajectory for patients, families and nurses - a literature review

BACKGROUND

In the 21st century, we are starting to discover and understand the longer term sequelae of critical illness from both patient's and family members' perspectives. The consequential effects on physical and psychological function and the social landscape are being slowing realized. We are beginning to understand the long-term legacy of critical care, with survivorship possibly the greatest challenge within the critical care setting.

AIM

To draw together research that has appraised the experience of surviving critical illness from the holistic, triadic perspectives of survivor, relative and critical care nurse. In doing so, knowledge of the complexities of the critical care trajectory is enhanced.

SEARCH STRATEGY

Using Medline; Assia; CINAHL Plus; SCOPUS; Web of knowledge searches from 2000 to 2015 were conducted utilizing the terms 'critical care'; 'intensive care', ITU; patient*; relative*; family member*; experience*; nurse*, and trajectory. Relevant exclusion criteria were applied to provide a generalist adult critical care perspective.

RESULTS

Following a process of constant comparative analysis of the literature and thematic synthesis, seven themes were highlighted. Facing mortality, critical junctures, physiological sequelae, psychological sequelae, family presence, beyond meeting the needs of family members and technology versus humanity were all emergent themes.

CONCLUSION

As humans, we do not live an isolated life; we are interdependent upon each other. This inclusive review of literature has highlighted the lacunae and areas of dissonance both in the literature and in clinical practice in relation to the critical care trajectory as experienced by survivors of critical illness and their families.

RELEVANCE TO CLINICAL PRACTICE

Critical care nurses can and should play a role in preparing and supporting patients and families beyond the critical care unit. In turn, Registered Nurses needed to be supported to fulfil this important role in enabling the process of moving patients and their families from surviving to thriving (survivorship).