“Time and life is fragile” : An integrative review of nurses’ experiences after patient death in adult critical care

Introduction: Providing bereavement support and care to families is an aspect of critical care nursing practice that can be rewarding, yet emotionally and psychologically challenging. Whilst significant research has focused on end-of-life care in critical care, less is known about nurses’ experiences after patient death. Aim: The aim of this study was to synthesise research evidence on the experience of registered nurses after patient death in adult critical care. Design: A structured integrative review of the empirical literature was undertaken. A combination of keywords, synonyms, and Medical Subject Headings were used across the Cumulative Index Nursing and Allied Health Literature (CINAHL) Complete, Ovid Medline, PsycInfo, Embase, and Emcare databases. Records were independently assessed against inclusion and exclusion criteria. A process of forward and backward chaining was used to identify additional papers. All papers were assessed for quality. Narrative synthesis was used to analyse and present the findings. Results: From the 4643 records eligible for screening, 36 papers reporting 35 studies were included in this review, representing the voices of 1687 nurses from more than 20 countries. Narrative synthesis revealed three themes: (i) postmortem care, which encompassed demonstrating respect and dignity for the deceased, preparation of the deceased, and the concurrent death rituals performed by nurses; (ii) critical care nurses' support of bereaved families, including families of potential organ donors and the system pressures that impeded family support; and (iii) nurses’ emotional response to patient death including coping mechanisms. Conclusions: Whilst a focus on the provision of high-quality end-of-life care should always remain a priority in critical care nursing, recognising the importance of after-death care for the patient, family and self is equally important. Acknowledging their experience, access to formal education and experiential learning and formal and informal supports to aid self-care are imperative

The effects of different protocols of physical exercise and rest on long-term memory

Whilst there are many studies comparing the different effects of exercise on long-term memory, these typically adopt varying intensities, durations, and behavioural measures. Furthermore, few studies provide direct comparisons between exercise and different types of rest. Therefore, by providing a standardised methodological design, this study will ascertain the most effective intensity and protocol of exercise for the modulation of long-term memory, whilst directly comparing it to different types rest. This was achieved using the same old/new recognition memory test and an 80-90 min retention interval. Three experiments were performed (total N=59), each with a three-armed crossover design measuring the extent to which physical exercise and wakeful rest can influence long-term memory performance. In Experiment 1, the effects of continuous moderate intensity exercise (65-75% HRmax), passive rest (no cognitive engagement) and active rest (cognitively engaged) were explored. In Experiment 2, continuous moderate intensity exercise was compared to a type of high-intensity interval training (HIIT) and passive rest. Experiment 3 observed the effects of low- (55-65% HRmax), moderate- and high-intensity (75-85% HRmax) continuous exercise. Across the three experiments moderate intensity exercise had the greatest positive impact on memory performance. Although not significant, HIIT was more effective than passive-rest, and passive rest was more effective than active rest. Our findings suggest that it is not necessary to physically overexert oneself in order to achieve observable improvements to long-term memory. By also investigating wakeful rest, we reaffirmed the importance of the cognitive engagement during consolidation for the formation of long-term memories

Associations between empirically proportionate and disproportionate fears of cancer recurrence and anxiety and depression in uveal melanoma survivors: Five-year prospective study.

ObjectiveFear of cancer recurrence (FCR) may develop into elevated anxiety or depression symptoms, but few risk factors for this development are known. Objective recurrence risk estimation is possible in some cancers. Using theories of risk communication and phobias, we examined whether the proportionality of FCR to known objective recurrence risk influences the development of anxiety and depression symptoms.MethodUveal melanoma (UM) patients can opt for reliable prognostic testing. Patients experience either a 'good' or 'poor' prognostic outcome, whereby 10-year mortality due to metastatic disease is, respectively, low or high. In a five-year prospective study of a consecutive sample of 589 UM survivors, we used random intercept cross lagged panel analyses to examine whether proportionality differentially influences whether FCR progresses to anxiety and depression.ResultsPositive cross paths predicting anxiety from FCR were stronger in the poor prognosis group than the good prognosis and not tested groups. Prognostic group differences were not evident for depression.ConclusionsFCR was more likely to progress to elevated anxiety symptoms when proportionate to the known objective recurrence risk. Objective evidence may play a prominent role in the development and structure of fear because it assumes a high epistemic weight that activates a wide range of emotional and cognitive responses. Interventions that assist survivors to tolerate FCR in the presence of higher recurrence risks may be important in reducing anxiety symptoms

Collaborative meta-analysis finds no evidence of a strong interaction between stress and 5-HTTLPR genotype contributing to the development of depression

The hypothesis that the S allele of the 5-HTTLPR serotonin transporter promoter region is associated with increased risk of depression, but only in individuals exposed to stressful situations, has generated much interest, research, and controversy since first proposed in 2003. Multiple meta-analyses combining results from heterogeneous analyses have not settled the issue. To determine the magnitude of the interaction and the conditions under which it might be observed, we performed new analyses on 31 datasets containing 38 802 European-ancestry subjects genotyped for 5-HTTLPR and assessed for depression and childhood maltreatment or other stressful life events, and meta-analyzed the results. Analyses targeted two stressors (narrow, broad) and two depression outcomes (current, lifetime). All groups that published on this topic prior to the initiation of our study and met the assessment and sample size criteria were invited to participate. Additional groups, identified by consortium members or self-identified in response to our protocol (published prior to the start of analysis1) with qualifying unpublished data were also invited to participate. A uniform data analysis script implementing the protocol was executed by each of the consortium members. Our findings do not support the interaction hypothesis. We found no subgroups or variable definitions for which an interaction between stress and 5-HTTLPR genotype was statistically significant. In contrast, our findings for the main effects of life stressors (strong risk factor) and 5-HTTLPR genotype (no impact on risk) are strikingly consistent across our contributing studies, the original study reporting the interaction, and subsequent meta-analyses. Our conclusion is that if an interaction exists in which the S allele of 5-HTTLPR increases risk of depression only in stressed individuals, then it is not broadly generalizable, but must be of modest effect size and only observable in limited situations

Genetic mechanisms of critical illness in COVID-19.

Host-mediated lung inflammation is present1, and drives mortality2, in the critical illness caused by coronavirus disease 2019 (COVID-19). Host genetic variants associated with critical illness may identify mechanistic targets for therapeutic development3. Here we report the results of the GenOMICC (Genetics Of Mortality In Critical Care) genome-wide association study in 2,244 critically ill patients with COVID-19 from 208 UK intensive care units. We have identified and replicated the following new genome-wide significant associations: on chromosome 12q24.13 (rs10735079, P = 1.65 × 10-8) in a gene cluster that encodes antiviral restriction enzyme activators (OAS1, OAS2 and OAS3); on chromosome 19p13.2 (rs74956615, P = 2.3 × 10-8) near the gene that encodes tyrosine kinase 2 (TYK2); on chromosome 19p13.3 (rs2109069, P = 3.98 ×  10-12) within the gene that encodes dipeptidyl peptidase 9 (DPP9); and on chromosome 21q22.1 (rs2236757, P = 4.99 × 10-8) in the interferon receptor gene IFNAR2. We identified potential targets for repurposing of licensed medications: using Mendelian randomization, we found evidence that low expression of IFNAR2, or high expression of TYK2, are associated with life-threatening disease; and transcriptome-wide association in lung tissue revealed that high expression of the monocyte-macrophage chemotactic receptor CCR2 is associated with severe COVID-19. Our results identify robust genetic signals relating to key host antiviral defence mechanisms and mediators of inflammatory organ damage in COVID-19. Both mechanisms may be amenable to targeted treatment with existing drugs. However, large-scale randomized clinical trials will be essential before any change to clinical practice

Mortality and pulmonary complications in patients undergoing surgery with perioperative SARS-CoV-2 infection: an international cohort study

Background: The impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on postoperative recovery needs to be understood to inform clinical decision making during and after the COVID-19 pandemic. This study reports 30-day mortality and pulmonary complication rates in patients with perioperative SARS-CoV-2 infection. Methods: This international, multicentre, cohort study at 235 hospitals in 24 countries included all patients undergoing surgery who had SARS-CoV-2 infection confirmed within 7 days before or 30 days after surgery. The primary outcome measure was 30-day postoperative mortality and was assessed in all enrolled patients. The main secondary outcome measure was pulmonary complications, defined as pneumonia, acute respiratory distress syndrome, or unexpected postoperative ventilation. Findings: This analysis includes 1128 patients who had surgery between Jan 1 and March 31, 2020, of whom 835 (74·0%) had emergency surgery and 280 (24·8%) had elective surgery. SARS-CoV-2 infection was confirmed preoperatively in 294 (26·1%) patients. 30-day mortality was 23·8% (268 of 1128). Pulmonary complications occurred in 577 (51·2%) of 1128 patients; 30-day mortality in these patients was 38·0% (219 of 577), accounting for 81·7% (219 of 268) of all deaths. In adjusted analyses, 30-day mortality was associated with male sex (odds ratio 1·75 [95% CI 1·28–2·40], p\textless0·0001), age 70 years or older versus younger than 70 years (2·30 [1·65–3·22], p\textless0·0001), American Society of Anesthesiologists grades 3–5 versus grades 1–2 (2·35 [1·57–3·53], p\textless0·0001), malignant versus benign or obstetric diagnosis (1·55 [1·01–2·39], p=0·046), emergency versus elective surgery (1·67 [1·06–2·63], p=0·026), and major versus minor surgery (1·52 [1·01–2·31], p=0·047). Interpretation: Postoperative pulmonary complications occur in half of patients with perioperative SARS-CoV-2 infection and are associated with high mortality. Thresholds for surgery during the COVID-19 pandemic should be higher than during normal practice, particularly in men aged 70 years and older. Consideration should be given for postponing non-urgent procedures and promoting non-operative treatment to delay or avoid the need for surgery. Funding: National Institute for Health Research (NIHR), Association of Coloproctology of Great Britain and Ireland, Bowel and Cancer Research, Bowel Disease Research Foundation, Association of Upper Gastrointestinal Surgeons, British Association of Surgical Oncology, British Gynaecological Cancer Society, European Society of Coloproctology, NIHR Academy, Sarcoma UK, Vascular Society for Great Britain and Ireland, and Yorkshire Cancer Research

Intensive care nurses perceptions on barriers impeding the provision of end of life care in the intensive care setting: a quantitative analysis

Background: Intensive care nurses look after the most critically ill patient population with the highest mortality rate on a daily basis. Whilst research to date has highlighted and provided some insights into the current provision of end of life care, further research is much needed to improve the efficacy of nurses existing practice. Objective: To investigate the specific barriers and contextual characteristics that nurses experience within the Intensive Care Unit environment. Study Methods: The National Questionnaire of Critical Care Nurses Regarding End of Life Care was used to collect quantitative and qualitative data to answer the research questions. This study was conducted in a major intensive care unit located in a tertiary public hospital in metropolitan Western Australia. Results: The respondent rate was 67.31%. Obstacles with the highest perceived intensity score (PIS) reported by participants involved issues around the communication and practice of end of life care including family interaction. The ranges of mean scores for supportive behaviours were much higher than the ranges for obstacles. These supportive behaviours included allowing family members to have adequate time alone with the patient after death, and families being taught how to engage with the dying patient. Conclusion: The findings reflect that the most intense and frequently occurring obstacles are consistent with past research. A perceived negative end of life care experience by the nurse was found to negatively impact the nurse’s psychological and physiological health. The research demonstrates the need for a stronger multidisciplinary patient centred approach. It is envisaged that the findings will support the review and development of appropriate guidelines to support nurses caring for intensive care patients in the initial and progressive phases of end of life care. What is already known about this topic? ICU patients have the highest incidence of mortality in the acute care setting with one in four patients dying in an ICU, accounting for 15% of all hospital deaths annually. This patient population presents nurses with a set of unique, yet significant challenges related to increased rate of mortality. There is a significant amount of existing literature that has explored moral distress amongst nurses, particularly in relation to end of life care. What this paper adds: This research suggests that there continues to be obstacles that impede critical care nurse’s ability to facilitate EOLC in the ICU setting. The participants of this study highlighted the need for stronger emphasis being placed on decision making processes, communication, and standardised practice. The most supportive behaviours reported were associated with practice that could be initiated by the nurse such as, allowing family members adequate time with their loved one pre and post death, and teaching family members how to act and engage with their loved ones during this time

Response to : ‘Sustainable healthcare education : a systematic review of the evidence and barriers to inclusion’

"Response to: ‘Sustainable healthcare education: A systematic review of the evidence and barriers to inclusion’." Medical Teacher, ahead-of-print(ahead-of-print), p.