Intensive Care Units In Australia Research Articles

Developmental care education in Australian surgical neonatal intensive care units: A cross-sectional study of nurses’ perceptions

BackgroundNurse perceptions of developmental care practices have been researched globally for almost 30 years. Yet, there is a lack of research exploring this subject in the specialised setting of the surgical neonatal intensive care unit (sNICU). This research explores the effect of developmental care education programs on sNICU nurses’ perceptions of developmental care. ObjectiveTo determine perceptions and attitudes towards developmental care in a specialty neonatal setting. DesignCross-sectional study. SettingsTwo surgical neonatal intensive care units in Australia. ParticipantsRegistered nurses permanently employed at the study sites between May 2021 to April 2022. MethodsA modified electronic survey explored sNICU nurse perceptions of developmental care organised around three themes: effects of developmental care on parents and infants, application of developmental care, and unit practices. Associations between site, nurse characteristics, developmental care education and nurses’ perceptions were explored using logistic regression [odds ratios (OR) and 95% confidence intervals (CI)]. ResultsOf 295 sNICU nurses, 117 (40%) participated in the survey. Seventy-five percent of respondents had attended a formal developmental care education program. High levels of agreement (>90%) were reported regarding the benefits of developmental care for parents and infants. Exposure to developmental care education influenced perceptions of its application. Nurses without formal developmental care education were more likely to agree that it was consistently applied [OR:3.3, 95%CI:1.3-8.6], developmental care skills are valued [OR:2.7, 95%CI:1.1-6.8], and that their nursing peers offered support in its application ([OR:2.5, 95%CI:1.1 – 6.2]. ConclusionsThe results from our research suggest sNICU nurses have a high level of awareness of developmental care and its positive impacts. Despite differences between the surveyed units' developmental care education programs, the value of developmental care in reducing stress for infants and supporting families was collectively recognised. Future research in this setting should focus on evaluating the application of developmental care in this setting.

Individualized Treatment Effects of Oxygen Targets in Mechanically Ventilated Critically Ill Adults

Among critically ill adults, randomized trials have not found oxygenation targets to affect outcomes overall. Whether the effects of oxygenation targets differ based on an individual's characteristics is unknown. To determine whether an individual's characteristics modify the effect of lower vs higher peripheral oxygenation-saturation (Spo2) targets on mortality. A machine learning model to predict the effect of treatment with a lower vs higher Spo2 target on mortality for individual patients was derived in the Pragmatic Investigation of Optimal Oxygen Targets (PILOT) trial and externally validated in the Intensive Care Unit Randomized Trial Comparing Two Approaches to Oxygen Therapy (ICU-ROX) trial. Critically ill adults received invasive mechanical ventilation in an intensive care unit (ICU) in the United States between July 2018 and August 2021 for PILOT (n = 1682) and in 21 ICUs in Australia and New Zealand between September 2015 and May 2018 for ICU-ROX (n = 965). Randomization to a lower vs higher Spo2 target group. 28-Day mortality. In the ICU-ROX validation cohort, the predicted effect of treatment with a lower vs higher Spo2 target for individual patients ranged from a 27.2% absolute reduction to a 34.4% absolute increase in 28-day mortality. For example, patients predicted to benefit from a lower Spo2 target had a higher prevalence of acute brain injury, whereas patients predicted to benefit from a higher Spo2 target had a higher prevalence of sepsis and abnormally elevated vital signs. Patients predicted to benefit from a lower Spo2 target experienced lower mortality when randomized to the lower Spo2 group, whereas patients predicted to benefit from a higher Spo2 target experienced lower mortality when randomized to the higher Spo2 group (likelihood ratio test for effect modification P = .02). The use of a Spo2 target predicted to be best for each patient, instead of the randomized Spo2 target, would have reduced the absolute overall mortality by 6.4% (95% CI, 1.9%-10.9%). Oxygenation targets that are individualized using machine learning analyses of randomized trials may reduce mortality for critically ill adults. A prospective trial evaluating the use of individualized oxygenation targets is needed.

The feasibility and acceptability of a physician-led ICU follow-up service: A prospective cohort study

BackgroundIncreased recognition of post–intensive care syndrome has led to widespread development of intensive care follow-up services internationally. ObjectiveThe objective of this study was to determine the feasibility and acceptability of an intensive care unit (ICU) follow-up clinic in Australia for patients and their caregivers and to describe satisfaction with this service. MethodsThis was a prospective cohort study in a mixed tertiary ICU in Australia. Eligible patients were adults admitted to the ICU for 7 days or more and/or ventilated for 48 h or more, as well as their primary caregiver. Patients and their primary caregivers were invited to attend a follow-up clinic 4–8 weeks after hospital discharge. The clinic appointment was attended by an ICU physician and nurse, with multidisciplinary support. Feasibility and acceptability were defined as the proportion of clinic attendance and frequency of interventions initiated at the clinic. Satisfaction was measured by a 5-point satisfaction survey (very dissatisfied to very satisfied). The burden of ongoing disease was reported via multiple validated instruments. ResultsFrom April 2020–July 2021, 386 patients met the inclusion criteria. Only 146 patients were approached for consent due to site staffing limitations. Eighty-three patients and 32 caregivers consented to attend the clinic. Seventy percent (54/77) of patients attended scheduled appointments and 50% (16/32) of caregivers. For patients, 23 medical referrals were made, 8 patients had medication changes, and 10 patients were offered social work support. Satisfaction surveys were completed by 65% (35/54) of attending patients; 97% (34) patients reported either being ‘very satisfied’ or ‘satisfied’ with the service. All responding caregivers (10) were either ‘very satisfied’ or ‘satisfied’ with the clinic. ConclusionThere were a large number of patients meeting the inclusion criteria to the ICU follow-up clinic, and clinic attendance was moderate for patients but lower for caregivers. Reported satisfaction with the service was high for both patients and their caregiver.

The impact of COVID-19 on the provision of bereavement support in Australian intensive care units: A national survey

BackgroundBereavement support is a vital part of caring for families when a patient dies in the intensive care unit (ICU). Previous research has demonstrated that while many ICUs provide some informal aspects of bereavement care, formalised follow-up programmes are uncommon. The impacts of COVID-19 on ICU-based bereavement support are currently unknown. ObjectivesThe objectives of this study were to explore the current provision of bereavement support in Australian ICUs and identify the impacts of the COVID-19 pandemic on these services. MethodsA cross-sectional exploratory web-based survey was used. The survey was distributed to one senior nurse in each public and private adult, paediatric, and neonatal ICU in Australia between April and July 2022. Descriptive statistics and reflexive thematic analysis were used to analyse the data. Ethical approval was received from La Trobe University. ResultsOne hundred and four ICUs from 82 hospitals responded to the survey, with 36 units reporting a formal bereavement follow-up service. When compared to prepandemic levels, almost all of the common bereavement care practices explored in the survey were significantly reduced during the COVID-19 pandemic. Open-ended responses also demonstrated significant impacts of COVID-19 on bereavement care provision, particularly related to Restricted family togetherness, Logistical Challenges, and Impacts on Staff. Staff members reported adjusting care provision in response to these challenges by exploring Alternative family communications, Facilitation of family togetherness, and Increasing familysupports. ConclusionsMany of the common elements of ICU-based bereavement care were significantly reduced during the COVID-19 pandemic. In addition, the number of formal bereavement follow-up services in Australian ICUs remains largely unchanged since 2015. Ongoing research is needed to explore the long-term effects of these changes on staff and family wellbeing and on ongoing provision of ICU-based bereavement support.

Study protocol for TARGET protein: The effect of augmented administration of enteral protein to critically ill adults on clinical outcomes: A cluster randomised, cross-sectional, double cross-over, clinical trial

BackgroundIt is unknown whether increasing dietary protein to 1.2–2.0 g/kg/day as recommended in international guidelines compared to current practice improves outcomes in intensive care unit (ICU) patients. The TARGET Protein trial will evaluate this. ObjectiveTo describe the study protocol for the TARGET Protein trial. Design, setting, and participantsTARGET Protein is a cluster randomised, cross-sectional, double cross-over, pragmatic clinical trial undertaken in eight ICUs in Australia and New Zealand. Each ICU will be randomised to use one of two trial enteral formulae for three months before crossing over to the other formula, which is then repeated, with enrolment continuing at each ICU for 12 months. All patients aged ≥16 years in their index ICU admission commencing enteral nutrition will be eligible for inclusion. Eligible patients will receive the trial enteral formula to which their ICU is allocated. The two trial enteral formulae are isocaloric with a difference in protein dose: intervention 100g/1000 ml and comparator 63g/1000 ml. Staggered recruitment commenced in May 2022. Main outcomes measuresThe primary outcome is days free of the index hospital and alive at day 90. Secondary outcomes include days free of the index hospital at day 90 in survivors, alive at day 90, duration of invasive ventilation, ICU and hospital length of stay, incidence of tracheostomy insertion, renal replacement therapy, and discharge destination. ConclusionTARGET Protein aims to determine whether augmented enteral protein delivery reduces days free of the index hospital and alive at day 90. Trial registrationAustralian New Zealand Clinical Trials Registry (ACTRN12621001484831).

The Characteristics of Patients Admitted to a Forensic Psychiatric Intensive Care Unit in Australia

Background: Psychiatric intensive care units (PICUs) house some of the highest acuity patients within the mental health system. Little is known about patient characteristics and adverse events occurring in these settings and this study aimed to examine clinical, demographic and offending characteristics and correlates of problem behaviours for patients admitted to the first forensic PICU in Australia. Aims: To identify common characteristics held by patients admitted to one high secure forensic PICU in Australia. Method: Retrospective file review occurred for patients admitted between March 2019 and May 2020, during which 96 male patients were admitted. Results: Mean (range) age was 37.3 (21–76) years, and when admitted most patients were: single (n = 80; 83.3%), homeless (n = 52; 54.2%), had not completed high-school education (n = 60; 62.5%), had histories of trauma (n = 38; 39.6%) and antisocial behaviour (n = 40; 41.7%) in adolescence and presented with personality disorder (n = 23; 24.0%) and substance abuse (n = 93; 96.9%). Frequent problem behaviours, particularly aggression (n = 65; 67.7%), were encountered and rates of seclusion (n = 62; 64.6%) were high. Segregation in prison prior to admission and co-morbid personality disorder were associated with increased likelihood of aggression or self-harm respectively occurring. Conclusion: With high mental illness acuity and significant behavioural risk complicated by multi-vulnerability, forensic PICUs need specialist environments, models of care and high level relational and de-escalation staff expertise to maintain safety and promote recovery.

Delirium Screening and Pharmacotherapy in the ICU: The Patients Are Not the Only Ones Confused.

Background: Delirium is difficult to measure in the Intensive Care Unit (ICU). It is possible that by considering the rate of screening, incidence, and rate of treatment with antipsychotic medications (APMs) for suspected delirium, a clearer picture can emerge. Methods: A retrospective, observational study was conducted at two ICUs in Australia, between April and June of 2020. All adult ICU patients were screened; those who spoke English and did not have previous neurocognitive pathology or intracranial pathology were included in the analysis. Data were collected from the hospitals' electronic medical records. The primary outcome was incidence of delirium based on the use of the Confusion Assessment Method for ICU (CAM-ICU). Secondary outcomes included measures of screening for delirium, treatment of suspected delirium with APMs, and identifying clinical factors associated with both delirium and the use of APMs. Results: From 736 patients that were screened, 665 were included in the analysis. The incidence of delirium was 11.3% (75/665); on average, the Richmond Agitation and Sedation Scale (RASS) was performed every 2.9 h and CAM-ICU every 40 h. RASS was not performed in 8.4% (56/665) of patients and CAM-ICU was not performed in 40.6% (270/665) of patients. A total of 17% (113/665) of patients were prescribed an APM, with quetiapine being the most used. ICU length of stay (LOS), APACHE-III score, and the use of alpha-2 agonists were associated with the presence of delirium, while ICU LOS, the use of alpha-2 agonists, and the presence of delirium were associated with patients receiving APMs. Conclusions: The incidence of delirium was lower than previously reported, at 11.3%. The rate of screening for delirium was low, while the use of APMs for delirium was higher than the incidence of delirium. It is possible that the true incidence is higher than what was measured. Critical prospective assessment is required to optimize APM indications in the ICU.

International pharmacy survey of peripheral vasopressor infusions in critical care (INFUSE)

PurposeThe primary objective was to determine the proportion of hospitals that administered norepinephrine peripheral vasopressor infusions (PVIs) in critically ill adult patients. Secondary objectives were to describe how norepinephrine is used such as the maximum duration, infusion rate and concentration, and to determine the most common first-line PVI used by country. Materials and methodsAn international multi-centre cross-sectional survey study was conducted in adult intensive care units in Australia, US, UK, Canada, and Saudi Arabia. ResultsCritical care pharmacists from 132 institutions responded to the survey. Norepinephrine PVIs were utilised in 86% of institutions (n = 113/132). The median maximum duration of norepinephrine PVIs was 24 h (IQR 24–24) (n = 57/113). The most common maximum norepinephrine PVI rate was between 11 and 20 μg/min (n = 16/113). The most common maximum norepinephrine PVI concentration was 16 μg/mL (n = 60/113). Half of the institutions had a preference to administer another PVI over norepinephrine as a first-line agent (n = 66/132). The most common alternative PVI used by country was: US (phenylephrine 41%, n = 37/90), Canada (dopamine 31%, n = 5/16), UK (metaraminol 82%, n = 9/11), and Australia (metaraminol 89%, n = 8/9). ConclusionsThere is variability in clinical practice regarding PVI administration in critically ill adult patients dependent on drug availability and local institutional recommendations.

Family presence during resuscitation: Perceptions and confidence of intensive care nurses in an Australian metropolitan hospital

BackgroundWhile literature supporting family presence during resuscitation (FPDR) was first published over three decades ago, the practice remains controversial. Benefits have been confirmed, and barriers to practice identified through international research. The extent that FPDR is practised in Australian intensive care units (ICUs) is currently unknown. ObjectivesTo examine ICU nurses’ previous exposure and experiences with FPDR To establish their perceptions of the risks and benefits of the practice, as well as their confidence participating. MethodsA descriptive, cross-sectional study design, using validated FPDR risk–benefits and confidence scales, was distributed electronically to registered nurses working within a single adult ICU in Australia. ResultsFifty-six percent (n = 45) of respondents had never witnessed FPDR. Respondents were divided on whether families had the right to be present or should be given the option. ICU nurses perceived benefits for families but not for the patients involved or for the nurses participating. Nurses indicated they felt conflicted between the needs of the family, preserving the quality of the care delivered to a deteriorating patient, and protecting the safety of all stakeholders. Support for FPDR was often dependent on the availability of resources such as a family-support person. ConclusionThis research establishes that ICU nurses lacked exposure to FPDR but were confident in their ability to perform, be observed, and support families during a resuscitation event. Therefore, confidence is likely not a factor in a decision to reject the practice. Further education is indicated as there remained a reluctance to adopt FPDR practice, despite many of the barriers reported having already been largely disproven by the available literature. Institutions have a role in policy development, ensuring adequate resources, and education.

Blood Pressure Management Goals in Critically Ill Aneurysmal Subarachnoid Hemorrhage Patients in Australia and New Zealand.

Blood pressure (BP) management is common in patients with aneurysmal subarachnoid hemorrhage (SAH) admitted to an intensive care unit. However, the practice patterns of BP management (timing, dose, and duration) have not been studied locally. This post hoc analysis explored BP management goals (defined as the setting of a minimum systolic BP target or application of induced hypertension) in patients enrolled into the PROMOTE-SAH study in eleven neurosurgical centers in Australia and New Zealand. The primary outcome was 'dead or disabled' (modified Rankin Score ≥4) at 6 months, with the hypothesis being that setting BP management goals would be associated with improved outcomes. BP management goals were recorded in 266 of 357 (75%) patients, of which 149 were recorded as receiving induced hypertension for delayed cerebral ischemia (DCI) or vasospasm on 738 (19%) study days. In patients with a minimum systolic BP goal recorded (on 2067d), the indication for the BP management goal was vasospasm or DCI on 651 (32%) days; no indication for BP management goals was documented on 1416 (69%) days. Crude analysis demonstrated an association between setting BP management goals and reduced death or disability (P=0.03), but this association was not significant after adjustment for the presence of DCI or vasospasm and clustered by the site. BP management goals are commonly 'prescribed' to aSAH patients admitted to an intensive care unit in Australia and New Zealand, but BP management goal setting was not associated with improved outcomes in the adjusted analysis.

Factors that may threaten or protect the wellbeing of staff working in paediatric intensive care environments

ObjectiveThis study explored the risk and protective factors for wellbeing from the perspectives of multidisciplinary paediatric intensive care unit staff. DesignUsing a qualitative, descriptive study design we purposively recruited a sample of nurses, physicians, and allied health professionals to participate in semi-structured interviews which explored staff perceptions of risk and protective factors relating to their daily paediatric intensive care roles. Data was analysed using thematic analysis. SettingFour paediatric intensive care units in Australia. FindingsTwenty staff were recruited. Braun and Clarke’s thematic analysis approach identified perceived risks for wellbeing included a lack of preparation for the role, and clinical situations that contributed to psychological distress, including perceived worst shift, moral distress, non-accidental injuries, and isolation. Themes perceived as protective to wellbeing included: finding the work stimulating and meaningful, belonging to the team, and using humour. ConclusionStaff perceptions of wellbeing in the paediatric intensive care unit suggested that risk factors often co-existed simultaneously with protective factors. These results are not consistent with the notion that wellbeing as a phenomenon can be considered on a risk-protection continuum. Strategies that enhance this work as meaningful and stimulating, promote a sense of belonging to the team, and support the use of humour, may assist health professionals to achieve a balance between risk and protective factors for wellbeing. Implications for clinical practiceEducation and training on end-of-life care, and how to have difficult conversations and manage the consistent psychological distress of intensive care work, is essential at orientation and requires regular formal interventions.Experiencing the work as stimulating highlights the need for advanced scope of practice work. Opportunities for individual and team reflection about the meaning and purpose of their work, and ensuring staff feel valued and experience a sense of belonging to the team, are critical to the intensive care context.

Family's experience of memory making in adult intensive care and its use in early bereavement: A descriptive qualitative study.

To explore the family's experience being offered memory making during end-of-life care in the adult intensive care unit and its use in early bereavement. Family members of individuals who develop a critical illness requiring emergency hospitalisation are unlikely to be prepared for a possible death. This places them at increased risk of poorer bereavement experiences. One potential intervention is memory making, which is an act that provides tangible objects such as a handprint, footprint, lock of hair, or teddy bear, that allows connections with and provides meaningful memories about a person. Families in the adult acute population reportedly have positive reactions regarding the objects, but it is unknown the object's effects on early bereavement experiences. Descriptive qualitative study utilising inductive reflexive thematic analysis. Reporting adheres to the COREQ checklist. Between May 2019-December 2020, a purposeful, convenience sample of 21 participants from a tertiary referral, adult intensive care unit in Australia were recruited to explore their experiences being offered memory making during end-of-life care and the objects use in early bereavement. Interviews were conducted using a semi-structured format and occurred at the participants' location of choice. Data analysis generated three themes: guidance during end of life by healthcare professionals that recognises the autonomy of the family; object used as a trigger to access memories; and storage and preservation of the object as an indication of its sentimental value and use in early bereavement CONCLUSION: Memory making objects such as handprints, locks of hair, or teddy bears received in the adult intensive care unit were valued and utilised during early bereavement by most recipients. Findings inform practice evidence gaps regarding the family's experiences of memory making received as a bereavement intervention in the adult acute population. Participants contributed through sharing their first-hand experiences of receiving memory making in the adult intensive care unit.

Healthcare professionals perspectives on feasibility and acceptability of family engagement in early mobilisation for adult critically ill patients: A descriptive qualitative study.

To explore healthcare professionals' perceptions of the feasibility and acceptability of family engagement in early mobilisation for adult critically ill patients. Early mobilisation is beneficial to minimise intensive care unit acquired-weakness in critically ill patients and family engagement can help with meeting early mobilisation goals, but it is not widely practiced. Understanding healthcare professionals' perceptions of feasibility and acceptability of family engagement in early mobilisation of adult critically ill patients is required to inform future implementation strategies to promote early mobilisation. A descriptive qualitative study. Face-to-face, individual, semi-structured interviews were conducted between August 2021 and March 2022 with healthcare professionals working in two intensive care units in Australia. The interviews were analysed using the inductive content analysis, and descriptive statistics were used to summarise participant characteristics. The COREQ checklist was followed when reporting this study. Eleven ICU nurses, five physiotherapists and four physicians participated in the interviews. Three main categories were identified: (i) healthcare professionals' readiness, (ii) mediators of engagement and (iii) foundations for successful implementation. Most participants demonstrated a positive attitude towards an implementation of family engagement in early mobilisation for adult critically ill patients; however, capability and capacity of healthcare professionals, family members' willingness, availability and readiness and the care context were considered factors that could influence the successful implementation. From the perspectives of healthcare professionals, family engagement in early mobilisation is feasible and acceptable to enact but implementation is influenced by contextual factors including, healthcare professionals' capability and capacity and family members' willingness, availability and readiness. Collaborative teamwork and preparing family members and healthcare professionals are needed to support this practice. The findings provide important information to further identify potential strategies of family engagement in early mobilisation and to help and mitigate factors that impede implementation.

Dysphagia in adult intensive care patients: Results of a prospective, multicentre binational point prevalence study

BackgroundDysphagia occurs in intensive care unit (ICU) patients. However, there is a lack of epidemiological data on the prevalence of dysphagia in adult ICU patients. ObjectivesThe objective of this study was to describe the prevalence of dysphagia in nonintubated adult patients in the ICU. MethodsA prospective, multicentre, binational, cross-sectional point prevalence study was conducted in 44 adult ICUs in Australia and New Zealand. Data were collected in June 2019 on documentation of dysphagia, oral intake, and ICU guidelines and training. Descriptive statistics were used to report demographic, admission, and swallowing data. Continuous variables are reported as means and standard deviations (SDs). Precisions of estimates were reported as 95% confidence intervals (CIs). ResultsOf the 451 eligible participants, 36 (7.9%) were documented as having dysphagia on the study day. In the dysphagia cohort, the mean age was 60.3 years (SD: 16.37) vs 59.6 years (SD: 17.1) and almost two-thirds were female (61.1% vs 40.1%). The most common admission source for those patients with dysphagia were from the emergency department (14/36, 38.9%), and seven of 36 (19.4%) had a primary diagnosis of trauma (odds ratio: 3.10, 95% CI 1.25 - 7.66). There were no statistical differences in Acute Physiology and Chronic Health Evaluation (APACHE II) scores between those with and without a dysphagia diagnosis. Patients with dysphagia were more likely to have a lower mean body weight of 73.3 kg vs 82.1 kg than patients not documented as having dysphagia (95% CI of mean difference: 0.43 to 17.07) and require respiratory support (odds ratio: 2.12, 95% 1.06 to 4.25). The majority of patients with dysphagia were prescribed modified food and fluids in the ICU. Less than half of ICUs surveyed reported unit-level guidelines, resources, or training for management of dysphagia. ConclusionsThe prevalence of documented dysphagia in adult ICU nonintubated patients was 7.9%. There were a higher proportion of females with dysphagia than previously reported. Approximately two-thirds of patients with dysphagia were prescribed oral intake, and the majority were receiving texture-modified food and fluids. Dysphagia management protocols, resources, and training are lacking across Australian and New Zealand ICUs.

The relationship between nursing skill mix and severity of illness of patients admitted in Australian and New Zealand intensive care units

BackgroundCritically ill patients in the intensive care environment require an appropriate nursing workforce to improve quality of care and patient outcomes. However, limited information exists as to the relationship between severity of illness and nursing skill mix in the intensive care. ObjectiveThe aim of this study was to describe the variation in nursing skill mix across different hospital types and to determine if this was associated with severity of illness of critically ill patients admitted to adult intensive care units (ICUs) in Australia and New Zealand. Design & SettingA retrospective cohort study using the Australia and New Zealand Intensive Care Society Adult Patient Database (to provide information on patient demographics, severity of illness, and outcome) and the Critical Care Resources Registry (to provide information on annual nursing staffing levels and hospital type) from July 2014 to June 2020. Four hospital types (metropolitan, private, rural/regional, and tertiary) and three patient groups (elective surgical, emergency surgical, and medical) were examined. Main outcome measureThe main outcome measure was the proportion of critical care specialist registered nurses (RNs) expressed as a percentage of the full-time equivalent (FTE) of total RNs working within each ICU each year, as reported annually to the Critical Care Resources Registry. ResultsData were examined for 184 ICUs in Australia and New Zealand. During the 6-year study period, 770 747 patients were admitted to these ICUs. Across Australia and New Zealand, the median percentage of registered nursing FTE with a critical care qualification for each ICU (n = 184) was 59.1% (interquartile range [IQR] = 48.9–71.6). The percentage FTE of critical care specialist RNs was highest in private [63.7% (IQR = 52.6–78.2)] and tertiary ICUs [58.1% (IQR = 51.2–70.2)], followed by metropolitan ICUs [56.0% (IQR = 44.5–68.9)] with the lowest in rural/regional hospitals [55.9% (IQR = 44.9–70.0)]. In ICUs with higher percentage FTE of critical care specialist RNs, patients had higher severity of illness, most notably in tertiary and private ICUs. This relationship was persistent across all hospital types when examining subgroups of emergency surgical and medical patients and in multivariable analysis after adjusting for the type of hospital and relative percentage of each diagnostic group. ConclusionsIn Australian and New Zealand ICUs, the highest acuity patients are cared for by nursing teams with the highest percentage FTE of critical care specialist RNs. The Australian and New Zealand healthcare system has a critical care nursing workforce which scales to meet the acuity of ICU patients across Australia and New Zealand.

The impact of nursing skill-mix on adverse events in intensive care: a single centre cohort study

Background The highly complex and technological environment of critical care manages the most critically unwell patients in the hospital system, as such there is a need for a highly trained nursing workforce. Intensive care is considered a high-risk area for errors and adverse events (AE) due to the severity of illness and number of procedures performed. Objective To investigate if the percentage of Critical Care Registered Nurses (CCRN) within an Intensive Care Unit (ICU) is associated with an increased risk of patients experiencing an AE. Design & Setting We conducted a retrospective cohort study of patients admitted between January 2016 and December 2020 to a tertiary ICU in Australia. Descriptive statistics and multivariable logistic regression were used to investigate the relationship between the proportion of CCRNs each month and the occurrence of an AE defined as any one of a medication error, fall, pressure injury or unplanned removal of a central venous catheter or endotracheal tube per patient. Results A total of 13,560 patients were included in the study, with 854 (6.3%) experiencing one AE. Patients with an AE were associated with higher illness severity and frailty scores. They were more commonly admitted after medical emergency team response calls and were less commonly elective ICU admissions. Those with an AE had longer ICU and in-hospital length of stay, and higher ICU and in-hospital mortality, on average. After adjusting for ICU LOS and acute severity of illness, being admitted during a month of higher critical care nursing skill-mix was associated with a statistically significant lower odds of having a subsequent AE (OR 0.966 [95% CI: 0.944–0.988], p 0.003). Conclusion An increasing percentage of CCRNs is independently associated with a lower risk-adjusted likelihood of an AE. Increasing the skill-mix of the ICU nursing staff may reduce the occurrence of AEs and lead to improved patient outcomes.

Projecting Future Climate Impact on National Australian Respiratory-Related Intensive Care Unit Demand.

A robust climate-health projection model has the potential to improve health care resource allocation. We aim to explore the relationship between Australian intensive care unit (ICU) demand and various measures of the long-lived large-scale climate and to develop a future nationwide climate-health projection model. We investigated patients admitted to ICUs in Australia between January 2003 and December 2019 who were exposed to long-lived large-scale combined climatic measures of temperature and humidity. We analysed the projected demand for respiratory-related ICU average length of stay (in days) per capita (ICUD/C) with four historical and one future projection dataset. These datasets included: i) Australian and New Zealand Intensive Care Society adult patient database, ii) Socioeconomic Data and Applications Center gridded global historical population, iii) Australian Bureau of Statistics national historical population, iv) Japanese 55-year Reanalysis historical climate (JRA55), and v) the fifth Coupled Model Inter-comparison Project future climate projections. 148,638 patients with respiratory issues required intensive care between 2003 and 2019. The annual growth in the population density-weighted wet-bulb-globe temperature-a combined measure of temperature and humidity-is strongly correlated with the annual per capita growth ICUD/C for respiratory-related conditions (r=0.771; p<0.001). This relationship was applied to develop a model projecting future respiratory-related ICU demand with three possible future Representative Concentration Pathways (RCP). RCP2.6 (lowest carbon emission climate scenario) showed only a 33.4% increase in Australian ICUD/C demand by 2090, while the RCP8.5 (highest carbon emission climate scenario) demonstrated almost two-fold higher demand (66.1%) than RCP2.6 by2090. The annual growth in population density-weighted wet-bulb-globe temperature correlates with the annual growth in Australian ICUD/C for respiratory-related conditions. A model based on possible future climate scenarios can be developed to predict changes in ICU demand in response to CO2 changes over the coming decades.

Nursing experiences in antimicrobial optimisation in the intensive care unit: A convergent analysis of a national survey

BackgroundRecent evidence highlights the need for an interdisciplinary approach to antimicrobial stewardship (AMS). Nursing involvement in optimising antimicrobials in the intensive care unit (ICU) remains understudied. ObjectiveThe objective of this study was to explore nurses' perceptions and experiences of antimicrobial optimisation or stewardship in ICUs in Australia. MethodsAn anonymous web-based survey was deployed nationally in early 2021 through two ICU nursing networks. Associations between survey responses were analysed descriptively and by using nonparametric tests (with statistical significance established at p ≤ 0.05). Free-text survey responses underwent qualitative thematic analysis. Interpretation and reporting of quantitative and qualitative data were integrated. ResultsA total of 226 ICU nurses completed the survey. The majority (197/226; 87%) responded that lack of education limits engagement in AMS. Only 13% (30/226) reported the presence of AMS education and training for nurses in their ICUs. Only about half (108/226; 48%) of the nurses were confident to question prescribers when they considered that the antimicrobial prescribed was unnecessary, with nurses in senior roles more likely to do so than nurses providing bedside care (p < 0.05). Gaps in education (including unfamiliarity with AMS roles), noninclusive antimicrobial discussions, moral distress, and potential workload burden were seen as potential barriers/challenges to engagement. ConclusionThe multifactorial barriers identified that inhibit nurses from performing AMS tasks could be addressed by strengthening interprofessional education at all levels and by applying practical AMS interventions that are inclusive for nursing participation. A purposeful culture change that fosters psychological safety and collaborative practice is paramount to supporting nurses in these roles.

Twelve-month mortality outcomes for Indigenous and non-Indigenous people admitted to intensive care units in Australia: a registry-based data linkage study.

To compare longer term (12-month) mortality outcomes for Indigenous and non-Indigenous people admitted to intensive care units (ICUs) in Australia. Retrospective registry-based data linkage cohort study; analysis of all admissions of adults (16 years or older) to Australian ICUs, 1 January 2017 - 31 December 2019, as recorded in the Australian and New Zealand Intensive Care Society (ANZICS) Adult Patient Database (APD), linked using the SLK-581 key to National Death Index data. Unadjusted and adjusted mortality risk, censored at twelve months from the start of index ICU admission. Secondary outcomes were unadjusted and adjusted mortality twelve months from admission to the ICU. The APD recorded 330 712 eligible ICU admissions during 2017-2019 (65% of all ICU admissions registered), of which 11 322 were of Indigenous people (3.4%). Median age at admission was lower for Indigenous patients (51.2 [IQR, 36.7-63.6] years) than for non-Indigenous patients (66.5 [IQR, 52.7-76.1] years). Unadjusted mortality risk was similar for Indigenous and non-Indigenous patients (hazard ratio, 1.01; 95% CI, 0.97-1.06), but was higher for Indigenous patients after adjusting for age, admission diagnosis, illness severity, hospital type, jurisdiction, remoteness and socio-economic status (adjusted hazard ratio, 1.20; 95% CI, 1.14-1.27). Twelve-month mortality was higher for Indigenous than non-Indigenous patients (adjusted odds ratio, 1.24; 95% CI, 1.16-1.33). Twelve-month mortality outcomes are poorer for people admitted to ICUs in Australia than for the general population. Further, after adjusting for age and other factors, survival outcomes are poorer for Indigenous than non-Indigenous people admitted to ICUs. Critical illness may therefore contribute to shorter life expectancy among Indigenous Australians.

Impact of frailty on clinical outcomes in patients with and without COVID-19 pneumonitis admitted to intensive care units in Australia and New Zealand: a retrospective registry data analysis

BackgroundIt is unclear if the impact of frailty on mortality differs between patients with viral pneumonitis due to COVID-19 or other causes. We aimed to determine if a difference exists between patients with and without COVID-19 pneumonitis.MethodsThis multicentre, retrospective, cohort study using the Australian and New Zealand Intensive Care Society Adult Patient Database included patients aged ≥ 16 years admitted to 153 ICUs between 01/012020 and 12/31/2021 with admission diagnostic codes for viral pneumonia or acute respiratory distress syndrome, and Clinical Frailty Scale (CFS). The primary outcome was hospital mortality.ResultsA total of 4620 patients were studied, and 3077 (66.6%) had COVID-19. The patients with COVID-19 were younger (median [IQR] 57.0 [44.7–68.3] vs. 66.1 [52.0–76.2]; p < 0.001) and less frail (median [IQR] CFS 3 [2–4] vs. 4 [3–5]; p < 0.001) than non-COVID-19 patients. The overall hospital mortality was similar between the patients with and without COVID-19 (14.7% vs. 14.9%; p = 0.82). Frailty alone as a predictor of mortality showed only moderate discrimination in differentiating survivors from those who died but was similar between patients with and without COVID-19 (AUROC 0.68 vs. 0.66; p = 0.42). Increasing frailty scores were associated with hospital mortality, after adjusting for Australian and New Zealand Risk of Death score and sex. However, the effect of frailty was similar in patients with and without COVID-19 (OR = 1.29; 95% CI: 1.19–1.41 vs. OR = 1.24; 95% CI: 1.11–1.37).ConclusionThe presence of frailty was an independent risk factor for mortality. However, the impact of frailty on outcomes was similar in COVID-19 patients compared to other causes of viral pneumonitis.Graphical