Contextual design requirements for decision-support tools involved in weaning patients from mechanical ventilation in intensive care units

Weaning patients from ventilation in intensive care units (ICU) is a complex task. There is a growing desire to build decision-support tools to help clinicians during this process, especially those employing Artificial Intelligence (AI). However, tools built for this purpose should fit within and ideally improve the current work environment, to ensure they can successfully integrate into clinical practice. To do so, it is important to identify areas where decision-support tools may aid clinicians, and associated design requirements for such tools. This study analysed the work context surrounding the weaning process from mechanical ventilation in ICU environments, via cognitive task and work domain analyses. In doing so, both what cognitive processes clinicians perform during weaning, and the constraints and affordances of the work environment itself, were described. This study found a number of weaning process tasks where decision-support tools may prove beneficial, and from these a set of contextual design requirements were created. This work benefits researchers interested in creating human-centred decision-support tools for mechanical ventilation that are sensitive to the wider work system.

Impact of the COVID-19 Pandemic on the Outcomes of Patients Undergoing Oncological Surgeries: CORONAL Study

BACKGROUND

The impact of coronavirus disease 2019 (COVID-19) on postoperative recovery from oncology surgeries should be understood for the clinical decision-making. Therefore, this study was designed to evaluate the postoperative cumulative 28-day mortality and the morbidity of surgical oncology patients during the COVID-19 pandemic.

METHODS

This retrospective cohort study included patients consecutively admitted to intensive care units (ICU) of three centres for postoperative care of oncologic surgeries between March to June 2019 (first phase) and March to June 2020 (second phase). The primary outcome was cumulative 28-day postoperative mortality. Secondary outcomes were postoperative organic dysfunction and the incidence of clinical complications. Because of the possibility of imbalance between groups, adjusted analyses were performed: Cox proportional hazards model (primary outcome) and multiple logistic regression model (secondary outcomes).

RESULTS

After screening 328 patients, 291 were included. The proportional hazard of cumulative 28-day mortality was higher in the second phase than that in the first phase in the Cox model, with the adjusted hazard ratio of 4.35 (95% confidence interval [CI] 2.15-8.82). The adjusted incidences of respiratory complications (odds ratio [OR] 5.35; 95% CI 1.42-20.11) and pulmonary infections (OR 1.53; 95% CI 1.08-2.17) were higher in the second phase. However, the adjusted incidence of other infections was lower in the second phase (OR 0.78; 95% CI 0.67-0.91).

CONCLUSIONS

Surgical oncology patients who underwent postoperative care in the intensive care unit during the COVID-19 pandemic had higher hazard of 28-day mortality. Furthermore, these patients had higher odds of respiratory complications and pulmonary infections. Trials registration The study is registered in the Brazilian Registry of Clinical Trials under the code RBR-8ygjpqm, UTN code U1111-1293-5414.

Optimal timing for early mobilization initiatives in intensive care unit patients: A systematic review and network meta-analysis

OBJECTIVES

Analyse the effect of varying start times for early exercise interventions on the prevention of intensive care unit-acquired weakness.

RESEARCH METHODOLOGY

We conducted a comprehensive search on PubMed, Cochrane Library, Web of Science, Embase, China Biology Medicine Disc, China National Knowledge Infrastructure, Wan Fang Database, and reference lists up to May 2023.

SETTING

We systematically searched the literature for all randomized controlled trials on the effect of early mobilization in patients with critical illness.

MAIN OUTCOME MEASURES

The primary outcome assessed was the incidence of intensive care unit-acquired weakness. The secondary outcomes included: the Medical Research Council Score, the Barthel Index, duration of mechanical ventilation, length of intensive care unit stay, total length of hospital stay, mortality and incidence of intensive care unit-related complications.

RESULTS

The results of meta-analysis showed that compared with routine care, less than 24 hours after admission (RR = 0.44, 95 %CI: 0.28-0.68), more than 24 hours (RR = 0.33, 95 %CI: 0.16-0.67), less than 72 hours after admission (RR = 0.33, 95 %CI: 0.20-0.52) may lead to a lower incidence of intensive care unit-acquired weakness. The results of under surface cumulative ranking showed that early mobilization within 72 hours may have the lowest incidence of intensive care unit-acquired weakness (SUCRA = 81.9 %).

CONCLUSIONS

The current empirical evidence from intensive care unit patients suggests that initiating mobilization protocols within 24-72 hours timeframe following admission to the intensive care unit could potentially be the most beneficial strategy to reduce the incidence of intensive care unit-acquired weakness and the related medical complications. Moreover, this strategy seems to significantly improve rehabilitation and treatment outcomes for these patients.

IMPLICATIONS FOR CLINICAL PRACTICE

According to this study, medical and nursing staff in the intensive care unit have the chance to identify the most suitable timing for the implementation of early rehabilitative measures for patients. This can potentially prevent intensive care unit-acquired weakness and enhance various clinical outcomes for patients.

Resistance training combined with β-hydroxy β-methylbutyrate for patients with critical illness: A four-arm, mixed-methods, feasibility randomised controlled trial

OBJECTIVES

This study aimed to assess the feasibility, safety, acceptability, and potential effectiveness of resistance training (RT) with or without β-Hydroxy β-Methylbutyrate (HMB) intervention program for ICU patients.

DESIGN

Open-label, parallel group, mixed method, randomized controlled trial.

SETTINGS

A tertiary general hospital in Fuzhou, China.

METHODS

Participants were randomly allocated to one of four groups. The RT group received supervised multilevel resistance training (RT) using elastic bands, administered by trained ICU nurses. The HMB group received an additional daily dose of 3.0 g HMB. The combination group underwent both interventions concurrently, while the control group received standard care. These interventions were implemented throughout the entire hospitalization period. Primary outcomes included feasibility indicators such as recruitment rate, enrollment rate, retention rate, and compliance rate. Secondary outcomes covered adverse events, acceptability (evaluated through questionnaires and qualitative interviews), and physical function. Quantitative analysis utilized a generalized estimation equation model, while qualitative analysis employed directed content analysis.

RESULTS

All feasibility indicators met predetermined criteria. Forty-eight patients were randomly assigned across four arms, achieving a 96% enrollment rate. Most patients adhered to the intervention until discharge, resulting in a 97.9% retention rate. Compliance rates for both RT and HMB interventions approached or exceeded 85%. No adverse events were reported. The intervention achieved 100% acceptability, with a prevailing expression of positive experiences and perception of appropriateness. The RT intervention shows potential improvement in physical function, while HMB does not.

CONCLUSIONS

Implementing nurse-led resistance training with elastic bands with or without HMB proved to be feasible and safe for ICU patients.

IMPLICATIONS FOR CLINICAL PRACTICE

A large-scale, multicenter clinical trials are imperative to definitively assess the impact of this intervention on functional outcomes in this population.

Exploring patients' and families' preferences for auditory stimulation in ICU delirium prevention: A qualitative study

OBJECTIVES

To explore the preferences of patients and families for delirium prevention by auditory stimulation in intensive care units.

RESEARCH METHODOLOGY

One-on-one, face-to-face, semistructured interviews with 17 participants (6 patients and 11 family members) were conducted at a step-down unit in a tertiary general hospital using a descriptive qualitative design. The data were analyzed via inductive thematic analysis.

RESULTS

Four major themes and ten subthemes emerged from the interviews: (1) reality orientation; (2) emotional support; (3) links to the outside; and (4) promising future.

CONCLUSIONS

The results in this qualitative study shed light on patients' and families' preferences for auditory stimulation in preventing ICU delirium. The participation of family members plays a crucial role in preventing ICU delirium. Family members can assist patients in reducing confusion about the situation by providing accurate and clear reality orientation. The emotional support and promising future provided by family members can help patients regain confidence and courage, which are often lacking in ICU patients. Linking patients to the outside world helps them stay connected, understand what is happening outside and reduce feelings of isolation.

IMPLICATIONS FOR CLINICAL PRACTICE

These findings can help health care staff gain insight into patients' and families' preferences and needs for auditory stimulation. Furthermore, these findings pave the way for crafting effective auditory interventions.

The effectiveness of cell salvage in extracorporeal circulation surgeries in relation to use of health resources after use: A systematic review and meta-analysis

Background

Alternatives to allogeneic blood transfusions are sought for resource management reasons and it is necessary to investigate the efficiency and efficacy on Cell Salvage use. The objective of this study is to analyze the effectiveness of the Cell Salvage system in addressing factors related to healthcare service utilization that may lead to increased healthcare expenditure.

Methods

A systematic review with meta-analysis was conducted through literature search in Medline, CINAHL, Scopus, Web of Science, and Cochrane Library. Inclusion criteria were studies in English/Spanish, without year restriction and Randomized Controlled Trials design, conducted in adults.

Results

Twenty-six studies were included in the systematic review, involving a total of 4781 patients (nexperimental group = 2365; ncontrol group = 2416). Significant differences favored the Cell Salvage system in units of transfused Red Blood Cells, in terms of units (p = 0.04; SMD = -0.42 95 % CI = -0.83 to -0.02) and individuals (p = 0.001; RR = 0.71, 95 % CI = 0.60 to 0.84) transfused. No significant differences were found in ICU (p = 0.93) and hospital stay duration (p = 0.21), number of reoperations (p = 0.68), and number of units and individuals transfused in terms of platelets (p > 0.05).

Conclusions

Cell Salvage use holds high potential for reducing healthcare costs and indirectly contributing to improving blood and blood product reserves within blood banks. Results obtained thus far do not provide definitive evidence regarding the duration of hospital stay, ICU stay, need for reoperation, or the quantity of transfused platelets. Therefore, it is recommended to increase the number of studies to assess the impact on the economic models of the Cell Salvage system.

Pressure injury treatment by intermittent electrical stimulation (PROTECT-2): protocol for a multicenter randomized clinical trial

BACKGROUND

Pressure ulcers account for a substantial fraction of hospital-acquired pathology, with consequent morbidity and economic cost. Treatments are largely focused on preventing further injury, whereas interventions that facilitate healing remain limited. Intermittent electrical stimulation (IES) increases local blood flow and redistributes pressure from muscle-bone interfaces, thus potentially reducing ulcer progression and facilitating healing.

METHODS

The Pressure Injury Treatment by Intermittent Electrical Stimulation (PROTECT-2) trial will be a parallel-arm multicenter randomized trial to test the hypothesis that IES combined with routine care reduces sacral and ischial pressure injury over time compared to routine care alone. We plan to enroll 548 patients across various centers. Hospitalized patients with stage 1 or stage 2 sacral or ischial pressure injuries will be randomized to IES and routine care or routine care alone. Wound stage will be followed until death, discharge, or the development of an exclusion criteria for up to 3 months. The primary endpoint will be pressure injury score measured over time.

DISCUSSION

Sacral and ischial pressure injuries present a burden to hospitalized patients with both clinical and economic consequences. The PROTECT-2 trial will evaluate whether IES is an effective intervention and thus reduces progression of stage 1 and stage 2 sacral and ischial pressure injuries.

TRIAL REGISTRATION

ClinicalTrials.gov NCT05085288 Registered October 20, 2021.

Critical care outcomes in decompensated cirrhosis: a United States national inpatient sample cross-sectional study

BACKGROUND

Prior assessments of critical care outcomes in patients with cirrhosis have shown conflicting results. We aimed to provide nationwide generalizable results of critical care outcomes in patients with decompensated cirrhosis.

METHODS

This is a retrospective study using the National Inpatient Sample from 2016 to 2019. Adults with cirrhosis who required respiratory intubation, central venous catheter placement or both (n = 12,945) with principal diagnoses including: esophageal variceal hemorrhage (EVH, 24%), hepatic encephalopathy (58%), hepatorenal syndrome (HRS, 14%) or spontaneous bacterial peritonitis (4%) were included. A comparison cohort of patients without cirrhosis requiring intubation or central line placement for any principal diagnosis was included.

RESULTS

Those with cirrhosis were younger (mean 58 vs. 63 years, p < 0.001) and more likely to be male (62% vs. 54%, p < 0.001). In-hospital mortality was higher in the cirrhosis cohort (33.1% vs. 26.6%, p < 0.001) and ranged from 26.7% in EVH to 50.6% HRS. Mortality when renal replacement therapy was utilized (n = 1580, 12.2%) was 46.5% in the cirrhosis cohort, compared to 32.3% in other hospitalizations (p < 0.001), and was lowest in EVH (25.7%) and highest in HRS (51.5%). Mortality when cardiopulmonary resuscitation was used was increased in the cirrhosis cohort (88.0% vs. 72.1%, p < 0.001) and highest in HRS (95.7%).

CONCLUSIONS

One-third of patients with cirrhosis requiring critical care did not survive to discharge in this U.S. nationwide assessment. While outcomes were worse than in patients without cirrhosis, the results do suggest better outcomes compared to previous studies.

Immunological Analysis of Postoperative Delirium after Thoracic Aortic Surgery

Background

Delirium is a recognized neurological complication following cardiac surgery and is associated with adverse clinical outcomes, including elevated mortality and prolonged hospitalization. While several clinical risk factors for post-cardiac surgery delirium have been identified, the pathophysiology related to the immune response remains unexamined. This study was conducted to investigate the immunological factors contributing to delirium in patients after thoracic aortic surgery.

Methods

We retrospectively evaluated 43 consecutive patients who underwent thoracic aortic surgery between July 2017 and June 2018. These patients were categorized into 2 groups: those with delirium and those without it. All clinical characteristics were compared between groups. Blood samples were collected and tested on the day of admission, as well as on postoperative days 1, 3, 7, and 30. Levels of helper T cells (CD4), cytotoxic T cells (CD8), B cells (CD19), natural killer cells (CD56+CD16++), and monocytes (CD14+CD16-) were measured using flow cytometry.

Results

The median patient age was 71 years (interquartile range, 56.7 to 79.0 years), and 21 of the patients (48.8%) were male. Preoperatively, most immune cell counts did not differ significantly between groups. However, the patients with delirium exhibited significantly higher levels of interleukin-6 and lower levels of tumor necrosis factor-alpha (TNF-α) than those without delirium (p<0.05). Multivariate analysis revealed that lower TNF-α levels were associated with an increased risk of postoperative delirium (p<0.05).

Conclusion

Postoperative delirium may be linked to perioperative changes in immune cells and preoperative cytokine levels. Additional research is required to elucidate the pathophysiological mechanisms underlying delirium.

Exploring European Consensus About the Remaining Treatment Challenges and Subsequent Opportunities to Improve the Management of Invasive Fungal Infection (IFI) in the Intensive Care Unit

BACKGROUND

The global prevalence of invasive fungal infections (IFI) is increasing, particularly within Intensive Care Units (ICU), where Candida spp. and Aspergillus spp. represent the most important pathogens. Diagnosis and management of IFIs becomes progressively challenging, with increasing antifungal resistance and the emergence of rare fungal species. Through a consensus survey focused on assessing current views on how IFI should be managed, the aim of this project was to identify challenges around diagnosing and managing IFIs in the ICU. The current status in different countries and perceived challenges to date amongst a multidisciplinary cohort of healthcare professionals involved in the care of IFI in the ICU was assessed.

METHODS

Using a modified Delphi approach, an expert panel developed 44 Likert-scale statements across 6 key domains concerning patient screening and minimal standards for diagnosis of IFIs in ICU; initiation and termination of antifungal treatments and how to minimise their side effects and insights for future research on this topic. These were used to develop an online survey which was distributed on a convenience sampling basis utilising the subscriber list held by an independent provider (M3 Global). This survey was distributed to intensivists, infectious disease specialists, microbiologists and antimicrobial/ICU pharmacists within the UK, Germany, Spain, France and Italy. The threshold for consensus was set at 75%.

RESULTS

A total of 335 responses were received during the five-month collection period. From these, 29/44 (66%) statements attained very high agreement (≥ 90%), 11/44 (25%) high agreement (< 90% and ≥ 75%), and 4/44 (9%) did not meet threshold for consensus (< 75%).

CONCLUSION

The results outline the need for physicians to be aware of the local incidence of IFI and the associated rate of azole resistance in their ICUs. Where high clinical suspicion exists, treatment should start immediately and prior to receiving the results from any diagnostic test. Beta-D-glucan testing should be available to all ICU centres, with results available within 48 h to inform the cessation of empirical antifungal therapy. These consensus statements and proposed measures may guide future areas for further research to optimise the management of IFIs in the ICU.

Effects of cold spray on thirst, frequency of oral care, and pain of general surgery intensive care unit patients

This study aims to investigate the effects of intraoral cold water spray on thirst, frequency of oral care and postoperative period pain at surgical incision site in patients having abdominal surgery. The study was carried out as a randomized controlled trial, registered under Clinical Trial Number: NCT05940818. The study involved 110 participants, divided equally into two groups (n = 55): the experimental group and the control group. Data were collected using patient information form, NRS, Intensive Care Oral Care Frequency Assessment Scale (ICOCFAS) and Visual Analog Scale (VAS). The severity of thirst at 1st, 8th, 16th h of post-operative period (p < 0.01) and the frequency of oral care application at 16th h were statistically significantly decreased in the experimental group when compared to the control group (p < 0.01).There wasn't statistically significant difference between the patients in the experimental and control groups in terms of pain at surgical incision site (p > 0.05). The patient's thirst and need for frequent oral care in the postoperative period were reduced by the application of a cold water spray. In patients undergoing abdominal surgery, the use of cold water spray application may be recommended to reduce thirst and the need for frequency of oral care application.

Clinical features and disease progression of elderly patients at the ICU setting

OBJECTIVE

To describe and characterize a cohort of octogenarian patients admitted to the ICU of the University Central Hospital of Asturias (HUCA).

DESIGN

Retrospective, observational and descriptive study of 14 months' duration.

SETTING

Cardiac and Medical intensive care units (ICU) of the HUCA (Oviedo).

PARTICIPANTS

Patients over 80 years old who were admitted to the ICU for more than 24 h.

INTERVENTIONS

None.

MAIN VARIABLES OF INTEREST

Age, sex, comorbidity, functional dependence, treatment, complications, evolution, mortality.

RESULTS

The most frequent reasons for admission were cardiac surgery and pneumonia. The average admission stay was significantly longer in patients under 85 years of age (p = 0,037). 84,3% of the latter benefited from invasive mechanical ventilation compared to 46,2% of older patients (p = <0,001). Patients over 85 years of age presented greater fragility. Admission for cardiac surgery was associated with a lower risk of mortality (HR = 0,18; 95% CI (0,062-0,527; p = 0,002).

CONCLUSIONS

The results have shown an association between the reason for admission to the ICU and the risk of mortality in octogenarian patients. Cardiac surgery was associated with a better prognosis compared to medical pathology, where pneumonia was associated with a higher risk of mortality. Furthermore, a significant positive association was observed between age and frailty.

Prediction of adverse drug reactions in geriatric patients admitted to intensive care units

INTRODUCTION

Intensive care units (ICUs) pose challenges in managing critically ill patients with polypharmacy, potentially leading to adverse drug reactions (ADRs), particularly in the elderly.

OBJECTIVE

To evaluate whether the severity and clinical prognosis scores used in ICUs correlate with the prediction of ADRs in aged patients admitted to an ICU.

METHODS

A cohort study was conducted in a Brazilian University Hospital ICU. APACHE II and SAPS 3 assessed clinical prognosis, while GerontoNet ADR Risk Score and BADRI evaluated ADR risk at ICU admission. Severity of the patients' clinical conditions was evaluated daily based on the SOFA score. ADR screening was performed daily through the identification of ADR triggers.

RESULTS

1295 triggers were identified (median 30 per patient, IQR=28), with 15 suspected ADRs. No correlation was observed between patient severity and ADRs at admission (p=0.26), during hospitalization (p=0.91), or at follow-up (p=0.77). There was also no association between death and ADRs (p=0.28) or worse prognosis and ADRs (p>0.05). Higher BADRI scores correlated with more ADRs (p=0.001).

CONCLUSIONS

These data suggest that employing the severity and clinical prognosis scores used in ICUs is not sufficient to direct active pharmacovigilance efforts, which are therefore indicated for critically ill patients.

Predicting intensive care unit-acquired weakness: A multilayer perceptron neural network approach

In this editorial, we comment on the article by Wang and Long, published in a recent issue of the World Journal of Clinical Cases. The article addresses the challenge of predicting intensive care unit-acquired weakness (ICUAW), a neuromuscular disorder affecting critically ill patients, by employing a novel processing strategy based on repeated machine learning. The editorial presents a dataset comprising clinical, demographic, and laboratory variables from intensive care unit (ICU) patients and employs a multilayer perceptron neural network model to predict ICUAW. The authors also performed a feature importance analysis to identify the most relevant risk factors for ICUAW. This editorial contributes to the growing body of literature on predictive modeling in critical care, offering insights into the potential of machine learning approaches to improve patient outcomes and guide clinical decision-making in the ICU setting.

Predictors of mortality and poor outcome for patients with severe infectious encephalitis in the intensive care unit: a cross-sectional study

BACKGROUND

There are few thorough studies assessing predictors of severe encephalitis, despite the poor prognosis and high mortality associated with severe encephalitis. The study aims to evaluate the clinical predictors of mortality and poor outcomes at hospital discharge in patients with severe infectious encephalitis in intensive care units.

METHOD

In two Chinese hospitals, a retrospective cohort study comprising 209 patients in intensive care units suffering from severe infectious encephalitis was carried out. Univariate and multivariate logistic regression analyses were used to identify the factors predicting mortality in all patients and poor outcomes in all survivors with severe infectious encephalitis.

RESULTS

In our cohort of 209 patients with severe encephalitis, 22 patients died, yielding a mortality rate of 10.5%. Cerebrospinal fluid pressure ≥ 400mmH2O (OR = 7.43), abnormal imaging (OR = 3.51), abnormal electroencephalogram (OR = 7.14), and number of rescues (OR = 1.12) were significantly associated with an increased risk of mortality in severe infectious encephalitis patients. Among the 187 survivors, 122 (65.2%) had favorable outcomes, defined as the modified Rankine Scale (mRS) score (0 ~ 3), and 65(34.8%) had poor outcomes (mRS scores 4 ~ 5). Age (OR = 1.02), number of rescues (OR = 1.43), and tubercular infection (OR = 10.77) were independent factors associated with poor outcomes at discharge in all survivors with severe infectious encephalitis.

CONCLUSIONS

Multiple clinical, radiologic, and electrophysiological variables are independent predictive indicators for mortality and poor outcomes in patients with severe encephalitis in intensive care units. Identifying these outcome predictors early in patients with severe encephalitis may enable the implementation of appropriate medical treatment and help reduce mortality rates.

Essential components of an educational program for implementing skin-to-skin contact for preterm infants in intensive care units: an integrative literature review

BACKGROUND

Globally, prematurity is the primary factor behind the mortality of children under the age of 5 years, resulting in approximately 1 million children dying annually. The World Health Organization (WHO) recommends Skin-to-Skin Contact (SSC) as part of routine care for preterm infants. Evidence shows that SSC reduces mortality, possibly by improving thermoregulation, facilitating the earlier initiation of breastfeeding and reducing the risk of nosocomial infection. An educational program for implementing SSC has been demonstrated to enhance the knowledge and practice of parents and nurses in intensive care units. This study, the first of its kind in the North West Province (NWP), aims to identify the essential components of an educational program for implementing SSC for premature infants in intensive care units.

OBJECTIVE

This paper presents an integrative literature review that critically synthesizes research-based literature on essential components of an educational program for implementing SSC for preterm infants in intensive care units.

METHODS

A comprehensive search of electronic databases, such as CINAHL, MEDLINE, PsycINFO, ProQuest and Health Source: Nursing/Academic Edition and Health Source-Consumer Edition, was conducted using different keywords and references lists from the bibliography.

RESULTS

Twelve articles relevant to this review were identified, read and synthesized to answer the research question. Three essential components emerged from the findings of this review, namely (1) the necessity of policy and role players for implementing SSC, (2) the availability of education and training, and (3) counseling and support for parents of preterm infants.

CONCLUSIONS

The outcomes of this study have the potential to facilitate the implementation and expansion of SSC in intensive care units. This could aid program implementers, policymakers, and researchers to implement and scale up this important tool in intensive care units.

Inter-rater agreement between patient- and proxy-reported cognitive functioning in intensive care unit patients: A cohort study

BACKGROUND

Health status, including cognitive functioning before critical illness, is associated with long-term outcomes in intensive care unit survivors. Premorbid data are therefore of importance in longitudinal studies. Few patients can self-report at intensive care admission. Consequently, proxy assessments of patients' health status are used. However, it remains unclear how accurately proxies can report on an intensive care patient's cognitive status.

OBJECTIVES

The aim of this study was to examine the agreement between patient- and proxy-reporting of the Cognitive Failures Questionnaire and to compare the agreement between proxy reports using the latter questionnaire and the Informant Questionnaire of Cognitive Decline in the Elderly as a reference.

METHODS

The present cohort study is part of a longitudinal multicentre study collecting both patient and proxy data using questionnaires and clinical data from medical records during intensive care unit stays. Agreement on patient and proxy pairs was examined using intraclass correlation coefficient (ICC), Spearman's correlation, percentage agreement, and Gwet's AC1 statistics. Agreement between the proxy-reported questionnaires was examined using percentage agreement and Gwet's AC1 statistics.

RESULTS

In total, we collected 99 pairs of patient-proxy assessments and 158 proxy-proxy assessments. The ICC for the sum scores revealed moderate agreement (n = 99; ICC = 0.59; 99% confidence interval [CI]: [0.30-0.76]) between patient and proxy. Agreement on items was poor (AC1 = 0.13; 99% CI: [0.01-0.24]) to moderate (AC1 = 0.55; 99% CI: [0.43-0.68]). Agreement using cut-off scores (>43) to indicate cognitive impairment was very good (89.9%, AC1 = 0.87; 99% CI: [0.79-0.95]). Agreement between the proxy-reported Cognitive Failures Questionnaire (>43) and the reference questionnaire (≥3.5) was also very good (n = 158; 85%, AC1 = 0.82; 99% CI: [0.74-0.90]).

CONCLUSIONS

Proxy assessments of the Cognitive Failures Questionnaire (>43) may be used to indicate cognitive impairment if patients are unable to self-report. Agreement was high between the two questionnaires determined by proxies, showing that these can be used interchangeably to assess cognitive functioning if proxy reporting is needed.

Association of socioeconomic deprivation with outcomes in critically ill adult patients: an observational prospective multicenter cohort study

BACKGROUND

The influence of socioeconomic deprivation on health inequalities is established, but its effect on critically ill patients remains unclear, due to inconsistent definitions in previous studies.

METHODS

Prospective multicenter cohort study conducted from March to June 2018 in eight ICUs in the Greater Paris area. All admitted patients aged ≥ 18 years were enrolled. Socioeconomic phenotypes were identified using hierarchical clustering, based on education, health insurance, income, and housing. Association of phenotypes with 180-day mortality was assessed using Cox proportional hazards models.

RESULTS

A total of 1,748 patients were included. Median age was 62.9 [47.4-74.5] years, 654 (37.4%) patients were female, and median SOFA score was 3 [1-6]. Study population was clustered in five phenotypes with increasing socioeconomic deprivation. Patients from phenotype A (n = 958/1,748, 54.8%) were without socioeconomic deprivation, patients from phenotype B (n = 273/1,748, 15.6%) had only lower education levels, phenotype C patients (n = 117/1,748, 6.7%) had a cumulative burden of 1[1-2] deprivations and all had housing deprivation, phenotype D patients had 2 [1-2] deprivations, all of them with income deprivation, and phenotype E patients (n = 93/1,748, 5.3%) included patients with 3 [2-4] deprivations and included all patients with health insurance deprivation. Patients from phenotypes D and E were younger, had fewer comorbidities, more alcohol and opiate use, and were more frequently admitted due to self-harm diagnoses. Patients from phenotype C (predominant housing deprivation), were more frequently admitted with diagnoses related to chronic respiratory diseases and received more non-invasive positive pressure ventilation. Following adjustment for age, sex, alcohol and opiate use, socioeconomic phenotypes were not associated with increased 180-day mortality: phenotype A (reference); phenotype B (hazard ratio [HR], 0.85; 95% confidence interval CI 0.65-1.12); phenotype C (HR, 0.56; 95% CI 0.34-0.93); phenotype D (HR, 1.09; 95% CI 0.78-1.51); phenotype E (HR, 1.20; 95% CI 0.73-1.96).

CONCLUSIONS

In a universal health care system, the most deprived socioeconomic phenotypes were not associated with increased 180-day mortality. The most disadvantaged populations exhibit distinct characteristics and medical conditions that may be addressed through targeted public health interventions.

Understanding the provision of goal-concordant care in the intensive care unit: A sequential two-phase qualitative descriptive study

BACKGROUND

Goal-concordant care in intensive care is care that aligns with the patient's expressed goals, values, preferences and beliefs. Communication and shared decision-making are key to ensuring goal-concordant care.

AIMS

The aims of his study were to explore (i) critical care clinicians' perspectives on how patient goals of care were communicated between clinicians, patients, and family in the intensive care unit; (ii) critical care nurses' role in this process; and (iii) how goals of care were used to guide care.

METHOD

Sequential two-phase qualitative descriptive design. Data were collected from February to June 2022 in a level-3 intensive care unit in a private hospital in Melbourne, Australia. In Phase One, individual interviews were conducted with critical care nurse participants (n = 11). In Phase Two, the findings were presented to senior clinical leaders (n = 2) to build a more comprehensive understanding. Data were analysed using Braun and Clarke's six step reflexive thematic analysis.

FINDINGS

There was poor consensus on the term 'goals of care', with some participants referring to daily treatment goals or treatment limitations and others to patients' wishes and expectations beyond the ICU. Critical care nurses perceived themselves as information brokers and patient advocates responsible for ensuring patient goals of care were respected, but engaging in goals-of-care conversations was challenging. A lack of role clarity, poor team communication, and inadequate processes to communicate patient goals impeded goal-concordant care. Senior clinical leaders affirmed these views, emphasising the need to utilise critical care nurses' insight for practical solutions to improve patient care.

CONCLUSIONS

Clarity in both, the term 'goals of care' and the critical care nurses' role in these conversations, are the essential first steps to ensuring patients' values, preferences, and beliefs to guide shared-decision-making and goal-concordant care. Improved verbal and written communication that is inclusive of all members of the treating team is key to addressing these issues.

Risk factors predicting the need for intensive care unit admission within forty-eight hours of emergency department presentation: A case-control study

BACKGROUND

Patients admitted from the emergency department to the wards, who progress to a critically unwell state, may require expeditious admission to the intensive care unit. It can be argued that earlier recognition of such patients, to facilitate prompt transfer to intensive care, could be linked to more favourable clinical outcomes. Nevertheless, this can be clinically challenging, and there are currently no established evidence-based methods for predicting the need for intensive care in the future.

OBJECTIVES

We aimed to analyse the emergency department data to describe the characteristics of patients who required an intensive care admission within 48 h of presentation. Secondly, we planned to test the feasibility of using this data to identify the associated risk factors for developing a predictive model.

METHODS

We designed a retrospective case-control study. Cases were patients admitted to intensive care within 48 h of their emergency department presentation. Controls were patients who did not need an intensive care admission. Groups were matched based on age, gender, admission calendar month, and diagnosis. To identify the associated variables, we used a conditional logistic regression model.

RESULTS

Compared to controls, cases were more likely to be obese, and smokers and had a higher prevalence of cardiovascular (39 [35.1%] vs 20 [18%], p = 0.004) and respiratory diagnoses (45 [40.5%] vs 25 [22.5%], p = 0.004). They received more medical emergency team reviews (53 [47.8%] vs 24 [21.6%], p < 0.001), and more patients had an acute resuscitation plan (31 [27.9%] vs 15 [13.5%], p = 0.008). The predictive model showed that having acute resuscitation plans, cardiovascular and respiratory diagnoses, and receiving medical emergency team reviews were strongly associated with having an intensive care admission within 48 h of presentation.

CONCLUSIONS

Our study used emergency department data to provide a detailed description of patients who had an intensive care unit admission within 48 h of their presentation. It demonstrated the feasibility of using such data to identify the associated risk factors to develop a predictive model.

Upskill training and preparedness of non-critical-care registered nurses deployed to intensive care units during the COVID-19 pandemic: A scoping review

BACKGROUND

The increase in intensive care unit (ICU) capacity compelled by the COVID-19 pandemic required the rapid deployment of non-critical-care registered nurses to the ICU setting. The upskill training needed to prepare these registered nurses for deployment was rapidly assembled due to the limited timeframe associated with the escalating pandemic. Scoping the literature to identify the content, structure, and effectiveness of the upskill education provided is necessary to identify lessons learnt during the COVID-19 pandemic response so that they may guide workforce preparation for future surge planning.

AIM

The aim of this scoping review was to map the literature to identify the available information regarding upskill training and preparedness of non-critical-care registered nurses deployed to the ICU during the COVID-19 pandemic.

METHODS

This scoping review was conducted in accordance with JBI methodology. A protocol outlined the review questions and used the participants, concept, and context framework to define the inclusion and exclusion criteria. A search of healthcare databases MEDLINE (Ovid), Embase (Ovid), CINAHL (EBSCO), Cochrane, and Scopus was supplemented with a grey literature search via Google.

RESULTS

Screening and review found 32 manuscripts that met the inclusion criterion for examination. Analysis revealed variation in duration of programs, theoretical versus practical content, face-to-face or online mode of delivery, and duration of preparation time at the bedside in the ICU setting. Data on contributors to preparedness for deployment were sparse but included training, support, peer education, buddy time, and clarity around responsibilities and communication.

DISCUSSION

Evaluation of upskill education was mostly limited to post-training surveys. Few studies explored the preparedness of deployed registered nurses as an outcome of their upskill training or described measures of effectiveness of ICU deployment.

CONCLUSION

There is limited evidence describing preparedness of non-critical-care registered nurses on deployment to the ICU. Further research is needed to identify what elements of upskill education led to preparedness and effective deployment to the ICU setting.

A novel nomogram for the prediction of subsyndromal delirium in patients in intensive care units: A prospective, nested case-controlled study

BACKGROUND

Subsyndromal delirium is a dynamic, recognizable condition commonly observed in intensive care unit (ICU) patients that can lead to poor patient prognosis, and its prompt recognition and management can prevent disease progression. However, no evidence-based predictive tool has been developed specifically to assess the occurrence of subsyndromal delirium in the ICU.

OBJECTIVE

To develop and validate a novel, simple and effective tool for estimating the risk of subsyndromal delirium among ICU patients.

DESIGN

A prospective, nested case-controlled study.

DATA SOURCES

A total of 731 patients were recruited from the central ICU of a tertiary hospital in southwestern China from August 2021 to November 2022.

METHODS

The least absolute shrinkage and selection operator was applied to screen potential features for univariate and multivariate logistic regression. A nomogram was constructed using the selected variables. The performance of the nomogram was evaluated by combining the area under the receiver operating characteristic curve (AUC), calibration curves and decision curve analysis (DCA).

RESULTS

The prevalence of subsyndromal delirium among ICU patients was 23.06 %. Multiple logistic regression analysis revealed that the independent predictive factors for subsyndromal delirium among ICU patients were vision impairment, a history of falls, the use of restraint, blood transfusion, the use of antibiotics, surgery, the Caprini score, and the Braden score, all of which were used to construct the nomogram. The AUCs for the model were 0.710 (95 % CI, 0.654-0.766, P < 0.001) and 0.825 (95 % CI, 0.732-0.917, P < 0.001) in the training and validation cohorts, respectively, indicating that the model had high accuracy in distinguishing patients with and without subsyndromal delirium. The calibration curve of the nomogram showed good consistency between the predicted and actual probabilities. The DCA indicated that the nomogram has clinical application for patients in the ICU.

CONCLUSIONS

We developed an easy-to-use nomogram for identifying subsyndromal delirium in ICU patients with satisfactory predictive ability based on simple and easily accessible clinical features. The nomogram can identify ICU patients at high-risk for subsyndromal delirium and may be a useful subsyndromal delirium tool for current ICU physicians.

Early Intravenous Beta-Blockade with Esmolol in Adults with Severe Traumatic Brain Injury (EBB-TBI): Protocol for a Phase 2a Intervention Design Study

Traumatic brain injury is a leading cause of death and disability worldwide. Interventions that mitigate secondary brain injury have the potential to improve outcomes for patients and reduce the impact on communities and society. Increased circulating catecholamines are associated with worse outcomes and there are supportive animal data and indications in human studies of benefit from beta-blockade after severe traumatic brain injury. Here, we present the protocol for a dose-finding study using esmolol in adults commenced within 24 h of severe traumatic brain injury. Esmolol has practical advantages and theoretical benefits as a neuroprotective agent in this setting, but these must be balanced against the known risk of secondary injury from hypotension. The aim of this study is to determine a dose schedule for esmolol, using the continual reassessment method, that combines a clinically significant reduction in heart rate as a surrogate for catecholamine drive with maintenance of cerebral perfusion pressure. The maximum tolerated dosing schedule for esmolol can then be tested for patient benefit in subsequent randomized controlled trials.Trial registration ISRCTN, ISRCTN11038397, registered retrospectively 07/01/2021 https://www.isrctn.com/ISRCTN11038397.

An Observational Study of Nutritional Assessment, Prescription, Practices, and Its Outcome among Critically Ill Patients Admitted to an Intensive Care Unit

Aim and background

Optimal feeding strategy for critically ill patients of intensive care unit (ICU) is often a matter of debate as patients admitted to ICU are highly catabolic and reduction in muscle mass is very common. We aimed at early achievement of nutritional goals in preventing skeletal muscle breakdown and improving clinical outcomes among critically ill patients with high risk of malnutrition.

Materials and methods

Nutrition risk in the critically ill (mNUTRIC) Score was used to identify the risk of malnutrition within 24 hours of admission. Quadriceps muscle mass index was measured within 24 hours of admission to ICU and repeated on 7th day. Enteral feeding was monitored by the nutrition expert as part of routine patient care and clinical outcomes were monitored.

Results

A total of 287 patients admitted in ICU were screened for malnutrition and 60 (20.9%) of them had high score (>5). There was no statistically significant reduction in the quadriceps muscle mass index (p < 0.05) (t = 0.601) measured within 24 hours of admission and on the 7th day of ICU stay, signifying that the nutritional prescription and monitoring may be useful in preserving the muscle mass. This study did not find statistically significant association between the high mNUTRIC score on admission and the clinical outcomes, such as 28 days mortality, incidence of pressure ulcers, length of ICU stay, and hospital-acquired infection (p > 0.05).

Conclusion

Early initiation and maintenance of enteral nutrition is essential for meeting target calories and protein requirements. It may help to preserve muscle mass in critically ill patients who are otherwise at high risk of malnutrition.

How to cite this article

Sharon T, Nayak SG, Shanbhag V, Hebbar S. An Observational Study of Nutritional Assessment, Prescription, Practices, and Its Outcome among Critically Ill Patients Admitted to an Intensive Care Unit. Indian J Crit Care Med 2024;28(4):364-368.

Unfinished nursing care in intensive care units and the mediating role of the association between nurse working environment, and quality of care and nurses' wellbeing

OBJECTIVES

Unfinished care refers to the situation in which nurses are forced to delay or omit necessary nursing care. The objectives was: 1) to measure the prevalence of unfinished nursing care in intensive care units during the COVID-19 pandemic; 2) to examine whether unfinished nursing care has a mediating role in the relationship between nurse working environment and nurse-perceived quality of care and risk of burnout among nurses.

DESIGN

A national cross-sectional survey.

SETTING

Seventy-five intensive care units in Belgium (December 2021 to February 2022).

MAIN OUTCOME MEASURES

The Practice Environment Scale of the Nursing Work Index was used to measure the work environment. The perception of quality and safety of care was evaluated via a Likert-type scale. The risk of burnout was assessed using the Maslach Burnout Inventory scale.

RESULTS

A total of 2,183 nurse responses were included (response rate of 47.8%). Seventy-six percent of nurses reported at least one unfinished nursing care activity during their last shift. The staffing and resource adequacy subdimension of the Practice Environment Scale of the Nursing Work Index had the strongest correlation with unfinished nursing care. An increase in unfinished nursing care led to significantly lower perceived quality and safety of care and an increase in high risk of burnout. Unfinished nursing care appears to be a mediating factor for the association between staffing and resource adequacy and the quality and safety of care perceived by nurses and risk of burnout.

CONCLUSIONS

Unfinished nursing care, which is highly related to staffing and resource adequacy, is associated with increased odds of nurses being at risk of burnout and reporting a lower level of perceived quality of care.

IMPLICATIONS FOR CLINICAL PRACTICE

The monitoring of unfinished nursing care in the intensive care unit is an important early indicator of problems related to adequate staffing levels, the well-being of nurses, and the perceived quality of care.

Communication strategies for expressing empathy during family-clinician conversations in the intensive care unit: A mixed methods study

OBJECTIVES

To explore communication strategies intensive care clinicians and patients' family members prefer for expressing empathy during family-clinician conversations.

RESEARCH METHODOLOGY/DESIGN

Mixed-methods survey study.

SETTING

Two medical ICUs of a German academic tertiary care hospital.

MAIN OUTCOME MEASURES

Using a self-developed online survey with closed and open-ended questions with free-text options, the participants' preferences of communication strategies for expressing empathy were investigated. Quantifiable similarities and differences were determined by statistical analysis. Qualitative themes were derived at by directed content analysis.

FINDINGS

The responses of 94 family members, 42 nurses, and 28 physicians were analysed (response rate: 45.3 %). Four communication strategies were deduced: (1) reassuring the families that the intensive care unit team will not abandon neither them nor the patient, (2) acknowledging emotions and offering support, (3) saying that the families are welcome and cared for in the intensive care unit, (4) providing understandable information. In comparison, the families considered an expression of nonabandonment as more empathic than the physicians did (p =.031,r = 0.240), and those expressions focussing solely on the family members' well-being (p =.012,r = 0.228) or comprising evaluative wording ("good", "normal") (p =.017,r = 0.242) as less empathic than the nurses did. Unanimously advocated nonverbal communication strategies included to listen attentively and to avoid interrupting as well as being approachable and honest.

CONCLUSION

The participants' preferences supported expert recommendations and highlighted that it is not only important what the clinicians say but also how they say it. Further research is needed to elucidate ways of successfully expressing empathy during family-clinician conversations in the intensive care unit.

IMPLICATIONS FOR CLINICAL PRACTICE

Intensive care unit clinicians are encouraged to practice active listening and to express their caring and nonabandonment. It is further suggested to reflect on and adjust pertinent nonverbal behaviours and relational aspects of their communication, as applicable.

Prediction of Th17/Treg cell balance on length of stay in intensive care units of patients with sepsis

Background

Prolonged length of stay (LOS) of sepsis can drain a hospital's material and human resources. This study investigated the correlations between T helper type 17 (Th17) and regulatory T (Treg) balance with LOS in sepsis.

Methods

A prospective clinical observational study was designed in Changhai Hospital affiliated to Naval Medical University in Shanghai, China, from January to October 2020. The patients diagnosed with sepsis and who met the inclusion and exclusion criteria were recruited and whether the levels of cytokines, procalcitonin, subtypes, and biomarkers of T cells in the peripheral blood were detected. We analyzed the correlation between these and LOS.

Results

Sixty septic patients were classified into two groups according to whether their intensive care unit (ICU) stay exceeded 14 days. The patients with LOS ≥14 days were older ([72.6±7.5] years vs. [63.3±10.4] years, P=0.015) and had higher Sequential Organ Failure Assessment (SOFA) (median [interquartile range]: 6.5 [5.0-11.0] vs. 4.0 [3.0-6.0], P=0.001) and higher Acute Physiology and Chronic Health Evaluation (APACHE) II scores (16.0 [13.0-21.0] vs. 8.5 [7.0-14.0], P=0.001). There was no difference in other demographic characteristics and cytokines, interleukin-6, tumor necrosis factor-α, and interleukin-10 between the two groups. The Th17/Treg ratio of sepsis with LOS <14 days was considerably lower (0.48 [0.38-0.56] vs. 0.69 [0.51-0.98], P=0.001). For patients with LOS ≥14 days, the area under the receiver operating characteristic curve for the Th17/Treg ratio was 0.766. It improved to 0.840 and 0.850 when combined with the SOFA and APACHE II scores, respectively.

Conclusions

The Th17/Treg ratio was proportional to septic severity and can be used as a potential predictor of ICU stay in sepsis, presenting a new option for ICU practitioners to better care for patients with sepsis.

Toxicoepidemiology of Acute Poisoning: A Classic Tale of Two Indias

How to cite this article: Singh O, Juneja D, Nasa P. Toxicoepidemiology of Acute Poisoning: A Classic Tale of Two Indias. Indian J Crit Care Med 2024;28(4):315-316.

Prediction of hospital mortality among critically ill patients in a single centre in Asia: comparison of artificial neural networks and logistic regression-based model

INTRODUCTION

This study compared the performance of the artificial neural network (ANN) model with the Acute Physiologic and Chronic Health Evaluation (APACHE) II and IV models for predicting hospital mortality among critically ill patients in Hong Kong.

METHODS

This retrospective analysis included all patients admitted to the intensive care unit of Pamela Youde Nethersole Eastern Hospital from January 2010 to December 2019. The ANN model was constructed using parameters identical to the APACHE IV model. Discrimination performance was assessed using area under the receiver operating characteristic curve (AUROC); calibration performance was evaluated using the Brier score and Hosmer-Lemeshow statistic.

RESULTS

In total, 14 503 patients were included, with 10% in the validation set and 90% in the ANN model development set. The ANN model (AUROC=0.88, 95% confidence interval [CI]=0.86-0.90, Brier score=0.10; P in Hosmer-Lemeshow test=0.37) outperformed the APACHE II model (AUROC=0.85, 95% CI=0.80-0.85, Brier score=0.14; P<0.001 for both comparisons of AUROCs and Brier scores) but showed performance similar to the APACHE IV model (AUROC=0.87, 95% CI=0.85-0.89, Brier score=0.11; P=0.34 for comparison of AUROCs, and P=0.05 for comparison of Brier scores). The ANN model demonstrated better calibration than the APACHE II and APACHE IV models.

CONCLUSION

Our ANN model outperformed the APACHE II model but was similar to the APACHE IV model in terms of predicting hospital mortality in Hong Kong. Artificial neural networks are valuable tools that can enhance real-time prognostic prediction.

The relationship between role ambiguity and anxiety in intensive care unit nurses: The mediating role of emotional intelligence

BACKGROUND

Role ambiguity is recognized as a significant psychological risk stressor in nursing practice, which undermines the psychological well-being of nurses. Since the well-being of nurses plays a crucial role in ensuring positive patient outcomes, it becomes imperative to identify strategies for improving nurses' psychological well-being.

OBJECTIVES

This study aimed to explore the effects of role ambiguity on anxiety in intensive care unit nurses and the mechanisms mediating emotional intelligence.

METHODS

In April-June 2023, a convenience sampling method was used to collect data from 360 intensive care unit nurses in a total of 7 hospitals in Shaanxi Province, Hunan Province, Beijing, and Jiangsu Province, China. A linear regression model was used to verify the mediating effect.

RESULTS

Role ambiguity was significantly and positively associated with anxiety in ICU nurses (p < 0.01). A mediating mechanism between role ambiguity and anxiety was established for emotional intelligence (p < 0.01).

CONCLUSIONS

Role ambiguity has a significant impact on the mental health of intensive care nurses, and emotional intelligence plays a mediating role in reducing role ambiguity and anxiety in nurses.

IMPLICATIONS FOR CLINICAL PRACTICE

This study highlights that role ambiguity in the intensive care unit setting increases nurses' anxiety, while emotional intelligence alleviates the anxiety associated with role ambiguity. Creating support systems and improving the environment is a top priority for nursing administrators. This includes, but is not limited to, clarifying the roles of nurses, conducting social-emotional training, and developing emotional intelligence to prevent and regulate nurses' anxiety and maintain mental health.

Prevalence of frailty and association with patient centered outcomes: A prospective registry-embedded cohort study from India

PURPOSE

We aimed to study the prevalence of frailty, evaluate risk factors, and understand impact on outcomes in India.

METHODS

This was a prospective registry-embedded cohort study across 7 intensive care units (ICUs) and included adult patients anticipated to stay for at least 48 h. Primary exposure was frailty, as defined by a score ≥ 5 on the Clinical Frailty Scale and primary outcome was ICU mortality. Secondary outcomes included in-hospital mortality and resource utilization. We used generalized linear models to evaluate risk factors and model association between frailty and outcomes.

RESULTS

838 patients were included, with median (IQR) age 57 (42,68) yrs.; 64.8% were male. Prevalence of frailty was 19.8%. Charlson comorbidity index (OR:1.73 (95%CI:1.39,2.15)), Subjective Global Assessment categories mild/moderate malnourishment (OR:1.90 (95%CI:1.29, 2.80)) and severe malnourishment (OR:4.76 (95% CI:2.10,10.77)) were associated with frailty. Frailty was associated with higher odds of ICU mortality (adjusted OR:2.04 (95% CI:1.25,3.33)), hospital mortality (adjusted OR:2.36 (95%CI:1.45,3.84)), development of stage2/3 AKI (unadjusted OR:2.35 (95%CI:1.60, 3.43)), receipt of non-invasive ventilation (unadjusted OR:2.68 (95%CI:1.77, 4.03)), receipt of vasopressors (unadjusted OR:1.47 (95%CI:1.04, 2.07)), and receipt of kidney replacement therapy (unadjusted OR:3.15 (95%CI:1.90, 5.17)).

CONCLUSIONS

Frailty is common among critically ill patients in India and is associated with worse outcomes.

STUDY REGISTRATION

CTRI/2021/02/031503.

Renal angina index for early identification of risk of acute kidney injury in critically ill children

BACKGROUND

The main objective was to test whether the Renal Angina Index (RAI), calculated on patient admission to the pediatric intensive care unit (PICU), is associated with the risk of acute kidney injury (AKI) based on the Kidney Disease: Improving Global Outcomes (KDIGO) (stage ≥ 2) in 72 h. The specific aim was to analyze the performance of the RAI at a specialized oncology PICU.

METHODS

Retrospective cohort study involving two pediatric intensive care units located within a general hospital and an oncology hospital. Children aged ≥ 3 months to < 18 years admitted to the intensive care units in 2017 with a length of stay ≥ 72 h were included.

RESULTS

The sample included 249 patients, of which 51% were male (127 patients), with median age of 77 months, and mean ICU stay of 5 days. Of the total admissions, 141 were clinical (57%) and 108 surgical. The rate of AKI was 15% and death rate within 30 days was 13%. Having a positive RAI on admission showed a statistically significant association with AKI at Day 3 (OR = 18.5, 95%CI = 4.3 - 78.9, p < 0.001) and with death (OR = 3.9, 95%CI = 1.6 - 9.9, p = 0.004). The accuracy of the RAI in the cancer population was 0.81 on the ROC curve (95%CI 0.74, 0.88).

CONCLUSIONS

The RAI is a useful tool for predicting AKI and death in critically ill children, including in oncology units.

Prediction and simulation of PEEP setting effects with machine learning models

OBJECTIVE

To establish a new machine learning-based method to adjust positive end-expiratory pressure (PEEP) using only already routinely measured data.

DESIGN

Retrospective observational study.

SETTING

Intensive care unit (ICU).

PATIENTS OR PARTICIPANTS

51811 mechanically ventilated patients in multiple ICUs in the USA (data from MIMIC-III and eICU databases).

INTERVENTIONS

No interventions.

MAIN VARIABLES OF INTEREST

Success parameters of ventilation (arterial partial pressures of oxygen and carbon dioxide and respiratory system compliance) RESULTS: The multi-tasking neural network model performed significantly best for all target tasks in the primary test set. The model predicts arterial partial pressures of oxygen and carbon dioxide and respiratory system compliance about 45 min into the future with mean absolute percentage errors of about 21.7%, 10.0% and 15.8%, respectively. The proposed use of the model was demonstrated in case scenarios, where we simulated possible effects of PEEP adjustments for individual cases.

CONCLUSIONS

Our study implies that machine learning approach to PEEP titration is a promising new method which comes with no extra cost once the infrastructure is in place. Availability of databases with most recent ICU patient data is crucial for the refinement of prediction performance.

Risk factors for surgical site infection following cardiac surgery in a region endemic for multidrug resistant organisms

OBJECTIVES

To identify risk factors for surgical site infections following cardiosurgery in an area endemic for multidrug resistant organisms.

DESIGN

Single-center, historical cohort study including patients who underwent cardiosurgery during a 6-year period (2014-2020).

SETTING

Joint Commission International accredited, multiorgan transplant center in Palermo, Italy.

MAIN OUTCOME MEASURES

Surgical site infection was the main outcome.

RESULTS

On a total of 3609 cardiosurgery patients, 184 developed surgical site infection (5.1 %). Intestinal colonization with multidrug resistant organisms was more frequent in patients with surgical site infections (69.6 % vs. 33.3 %; p < 0.001). About half of surgical site infections were caused by Gram-negative bacteria (n = 97; 52.7 %). Fifty surgical site infections were caused by multidrug resistant organisms (27.1 %), with extended-spectrum Beta-lactamase-producing Enterobacterales (n = 16; 8.7 %) and carbapenem-resistant Enterobacterales (n = 26; 14.1 %) being the predominant resistance problem. However, in only 24 of surgical site infections caused by multidrug resistant organisms (48 %), mostly carbapenem-resistant Enterobacterales (n = 22), a pathogen match between the rectal surveillance culture and surgical site infections clinical culture was demonstrated. Nevertheless, multivariate logistic regression analysis identified a rectal swab culture positive for multidrug resistant organisms as an independent risk factor for SSI (odds ratio 3.95, 95 % confidence interval 2.79-5.60). Other independent risk factors were female sex, chronic dialysis, diabetes mellitus, previous cardiosurgery, previous myocardial infarction, being overweight/obese, and longer intubation time.

CONCLUSION

In an area endemic for carbapenem-resistant Enterobacterales, intestinal colonization with multidrug resistant organisms was recognized as independent risk factor for surgical site infections.

IMPLICATIONS FOR CLINICAL PRACTICE

No causal relationship between colonization with resistant pathogens and subsequent infection could be demonstrated. However, from a broader epidemiological perspective, having a positive multidrug resistant organisms colonization status appeared a risk factor for surgical site infections. Therefore, strict infection control measures to prevent cross-transmission remain pivotal (e.g., nasal decolonization, hand hygiene, and skin antisepsis).

Correlation between catheter colonization of central venous catheters and clinical biochemical indicators: A retrospective analysis of the MIMIC‑IV database

BACKGROUND

Clinical studies have not fully assessed the potential impact of patients' biochemical indicators on the rate of positive for central venous catheter-tip microorganism culture (PCMC).

METHODS

Data were obtained from an online Medical Information Mart for Intensive Care IV database. Patients who were ≥18 years old and had central venous catheter-tip culture results without continuous renal replacement therapy were included in the study. A comparison of patient characteristics and their biochemical indicators was made between negative and positive culture results.

RESULTS

A total of 5,323 patients were included in the analysis, including 612 positive (PCMC group) and 4,711 negative culture results (negative for central venous catheter tip catheter-tip microorganism culture [NCMC] group). The only influence factor on PCMC in this study was the serum creatinine (Scr) (odds ratio: 1.312, 95% confidence interval: 1.084-1.590, P = .005), according to a binary logistic regression analysis. The cut-off value of Scr was 3.25 mg/dL. The prevalence of PCMC (27.1% vs 9.1%, P < .001) and Staphylococcus aureus (43.0% vs 18.6%, P < .001) for central venous catheter-tip culture results was much higher in patients with Scr ≥ 3.25 mg/dL than those Scr < 3.25 mg/dL.

CONCLUSIONS

We used the large dataset collected from Medical Information Mart for Intensive Care IV to show that patients with Scr ≥ 3.25 mg/dL had an increased risk for PCMC.

Clinical description and outcome of overall varicella-zoster virus-related organ dysfunctions admitted in intensive care units: the VAZOREA cohort study

BACKGROUND

Due to aging population and increasing part of immunocompromised patients, a raise in life-threatening organ damage related to VZV can be expected. Two retrospective studies were already conducted on VZV in ICU but focused on specific organ injury. Patients with high-risk of VZV disease still must be identified. The objective of this study was to report the clinical features and outcome of all life-threatening VZV manifestations requiring intensive care unit (ICU) admission. This retrospective cohort study was conducted in 26 French ICUs and included all adult patients with any life-threatening VZV-related event requiring ICU admission or occurring in ICU between 2010 and 2019.

RESULTS

One-hundred nineteen patients were included with a median SOFA score of 6. One hundred eight patients (90.8%) were admitted in ICU for VZV disease, leaving 11 (9.2%) with VZV disease occurring in ICU. Sixty-one patients (51.3%) were immunocompromised. Encephalitis was the most prominent organ involvement (55.5%), followed by pneumonia (44.5%) and hepatitis (9.2%). Fifty-four patients (45.4%) received norepinephrine, 72 (60.5% of the total cohort) needed invasive mechanical ventilation, and 31 (26.3%) received renal-replacement therapy. In-hospital mortality was 36.1% and was significantly associated with three independent risk factors by multivariable logistic regression: immunosuppression, VZV disease occurring in ICU and alcohol abuse. Hierarchical clustering on principal components revealed five phenotypically distinct clusters of patients: VZV-related pneumonia, mild encephalitis, severe encephalitis in solid organ transplant recipients, encephalitis in other immunocompromised hosts and VZV disease occurring in ICU. In-hospital mortality was highly different across phenotypes, ranging from zero to 75% (p < 0.001).

CONCLUSION

Overall, severe VZV manifestations are associated with high mortality in the ICU, which appears to be driven by immunosuppression status rather than any specific organ involvement. Deciphering the clinical phenotypes may help clinicians identify high-risk patients and assess prognosis.

Gender perspective in the implementation of hygiene in cardiology intensive care

INTRODUCTION

Hygiene in critical patients is an essential daily care, provided under safe conditions, to promote comfort and maintain the integrity of skin and mucous membranes, however, it can generate feelings of dependence and vulnerability in patients. The aim of this post hoc study is to know the differences in satisfaction and lived experience regarding bed hygiene in an intensive care unit according to biological sex and gender perspective.

METHODS

Observational, descriptive and prospective study in which an ad hoc questionnaire was administered to 148 conscious and oriented patients of legal age. The questionnaire was completed 24-48 hours after admission to the unit, once the initial bed hygiene had been performed.

RESULTS

Males experienced conformism (51%), embarrassment (31%) and relief (9%); Women felt conformism (35.4%), embarrassment (18.8%) and relief (29.2%) (p < 0.05). Women experienced a feeling of cleanliness in 89.1% compared to 56.1% of men (p < 0.05). Men were offered to wash their genitals in 72.9% compared to 35.7% of women (p < 0.05). 34.3% of men would prefer a family member to assist them during hygiene (62.9% by their wives), compared to 27.1% of women who would prefer a family member (84.6% by their daughters).

CONCLUSION

Women tolerate bed hygiene better than men and appreciate more the feeling of cleanliness. Women are identified as caregivers, both professionally and in the family, and patients prefer them to collaborate in the performance of hygiene, being wives preferred by men and daughters preferred by women.

Real-time machine learning model to predict short-term mortality in critically ill patients: development and international validation

BACKGROUND

A real-time model for predicting short-term mortality in critically ill patients is needed to identify patients at imminent risk. However, the performance of the model needs to be validated in various clinical settings and ethnicities before its clinical application. In this study, we aim to develop an ensemble machine learning model using routinely measured clinical variables at a single academic institution in South Korea.

METHODS

We developed an ensemble model using deep learning and light gradient boosting machine models. Internal validation was performed using the last two years of the internal cohort dataset, collected from a single academic hospital in South Korea between 2007 and 2021. External validation was performed using the full Medical Information Mart for Intensive Care (MIMIC), eICU-Collaborative Research Database (eICU-CRD), and Amsterdam University Medical Center database (AmsterdamUMCdb) data. The area under the receiver operating characteristic curve (AUROC) was calculated and compared to that for the National Early Warning Score (NEWS).

RESULTS

The developed model (iMORS) demonstrated high predictive performance with an internal AUROC of 0.964 (95% confidence interval [CI] 0.963-0.965) and external AUROCs of 0.890 (95% CI 0.889-0.891) for MIMIC, 0.886 (95% CI 0.885-0.887) for eICU-CRD, and 0.870 (95% CI 0.868-0.873) for AmsterdamUMCdb. The model outperformed the NEWS with higher AUROCs in the internal and external validation (0.866 for the internal, 0.746 for MIMIC, 0.798 for eICU-CRD, and 0.819 for AmsterdamUMCdb; p < 0.001).

CONCLUSIONS

Our real-time machine learning model to predict short-term mortality in critically ill patients showed excellent performance in both internal and external validations. This model could be a useful decision-support tool in the intensive care units to assist clinicians.

Non-pharmacological interventions to reduce physical restraints in critical care units

Physical restraint use in critical care units is a frequent low-value care practice influenced by numerous factors creating a local culture. The translation of evidence-based recommendations into clinical practice is scarce so, the analysis of interventions to de-adopt this practice is needed. This update aims to describe and identify nonpharmacological interventions that contribute to minimising the use of physical restraints in adult critically ill patients. Interventions are classified into two groups: those that include education alone and those that combine training with one or more components (multicomponent interventions). These components include less restrictive restraint alternatives, use of physical and cognitive stimulation, decision support tools, institutional multidisciplinary committees, and team involvement. The heterogeneity in the design of the programmes and the low quality of the evidence of the interventions do not allow us to establish recommendations on their effectiveness. However, multicomponent interventions including training, physical and cognitive stimulation of the patient and a culture change of professionals and the organisations towards making restraints visible might be the most effective. The implementation of these programmes should underpin on a prior analysis of each local context to design the most effective-tailored combination of interventions to help reduce or eliminate them from clinical practice.

Study of Colistin Resistant Gram Negative Organism in Hospitalized Patients: A Retrospective Study

Background

Intensive care units have become hotspots for antimicrobial resistance, particularly concerning colistin resistance, posing a threat of untreatable infections.

Aim

This study aims to analyze the epidemiological and clinical aspects of patients carrying colistin-resistant organisms. It focuses on identifying risk factors, the microbiological profile, susceptibility patterns, and treatment outcomes.

Materials and methods

Isolates with colistin MIC >2 µg/mL, identified via BD PHOENIX, were subjected to colistin broth disc elution testing (as per CLSI guidelines) in our Microbiology Department between January and December 2022.

Results

Among the 30 patients, colistin-resistant gram-negative isolates were found predominantly in blood cultures (50%), followed by ET/TT cultures (23.3%), urine cultures (10%), and other sites (16.7%). Klebsiella pneumoniae was the most common organism (80%), showing the highest sensitivity to Ceftazidime-avibactam + Aztreonam (CAZ-AVI + ATM) (76.7%). Of these patients, 66.7% recovered and were discharged, while 33.3% succumbed during hospitalization despite treatment.

Conclusion

The study underscores a notable presence of colistin-resistant gram-negative isolates, predominantly in blood cultures, with K. pneumoniae being predominant. The combination of CAZ-AVI + ATM exhibited the highest sensitivity. However, the mortality rate of 33.3% despite sensitive antibiotic treatment highlights the urgency for ongoing vigilance and research to combat colistin-resistant infections and improve patient outcomes.

How to cite this article

Diwane D, Rajhans PA, Jog SA, Dalvi M. Study of Colistin Resistant Gram Negative Organism in Hospitalized Patients: A Retrospective Study. Indian J Crit Care Med 2024;28(3):286-289.

Intensive care unit nurses' perceptions of debriefing after critical incidents: A qualitative descriptive study

BACKGROUND

Intensive care unit (ICU) nurses are exposed to critical incidents daily at their workplace, which may have long-term physical and psychological impacts. Despite the growing evidence supporting clinical debriefing in health care to prevent these impacts, a scarcity of literature exists to support its use in the adult intensive care setting.

OBJECTIVES

The objective of this study was to explore nurses' perceptions of clinical debriefing after critical incidents in an adult ICU.

METHODS

A qualitative descriptive design was utilised. Thematic analysis of data from individual semistructured interviews with six ICU nurses was undertaken.

FINDINGS

In this study, two themes were identified. Firstly, participants valued hot debriefing after critical incidents for the key reasons of having an opportunity to reflect on and learn from a critical incident and reduce normalisation of stressful situations. Secondly, when logistical factors such as communication, timing, and location were not considered, the attendance at debriefings was negatively influenced. Participants identified that ICU nurses commonly prioritised patient tasks over attending a debrief; therefore, teamwork and flexibility with logistics was crucial.

CONCLUSIONS

Hot debriefing, of a short duration and close to the time of the event, was valued and played an important role in staff wellbeing and self-care, contributing to preventing self-blame and normalisation of stressful situations. A clearer definition of the term along with greater recognition of types of events that could be considered critical incidents is required for staff support after critical incidents in the complex intensive care setting.

Critical care bed capacity in Asian countries and regions before and during the COVID-19 pandemic: an observational study

Background

The coronavirus disease 2019 (COVID-19) pandemic highlighted the importance of critical care. The aim of the current study was to compare the number of adult critical care beds in relation to population size in Asian countries and regions before (2017) and during (2022) the pandemic.

Methods

This observational study collected data closest to 2022 on critical care beds (intensive care units and intermediate care units) in 12 middle-income and 7 high-income economies (using the 2022-2023 World Bank classification), through a mix of methods including government sources, national critical care societies, personal contacts, and data extrapolation. Data were compared with a prior study from 2017 of the same countries and regions.

Findings

The cumulative number of critical care beds per 100,000 population increased from 3.0 in 2017 to 9.4 in 2022 (p = 0.003). The median figure for middle-income economies increased from 2.6 (interquartile range [IQR] 1.7-7.8) to 6.6 (IQR 2.2-13.3), and that for high-income economies increased from 11.4 (IQR 7.3-22.8) to 13.9 (IQR 10.7-21.7). Only 3 countries did not see a rise in bed capacity. Where data were available in 2022, 10.9% of critical care beds were in single rooms (median 5.0% in middle-income and 20.3% in high-income economies), and 5.3% had negative pressure (median 0.7% in middle-income and 18.5% in high-income economies).

Interpretation

Critical care bed capacity in the studied Asian countries and regions increased close to three-fold from 2017 to 2022. Much of this increase was attributed to middle-income economies, but substantial heterogeneity exists.

Funding

None.

Adolescents with Rett syndrome at critical care pathway junctures: Examining clinicians' decision to initiate invasive long-term ventilation

BACKGROUND

The initiation of invasive long-term ventilation (I-LTV) for an adolescent with Rett Syndrome (RTT) involves many serious bioethical considerations. In moving towards a more inclusive model of patient participation, transparency surrounding the main influencing factors around this decision is important.

OBJECTIVE

We aimed to identify the main drivers influencing a clinician's decision to support initiation of I-LTV for an adolescent with RTT.

METHOD

We used an anonymous online vignette-based factorial survey. The survey was distributed internationally through eight professional multi-disciplinary organisations to reach clinicians working in paediatrics.

RESULTS

We analysed 504 RTT vignettes completed by 246 clinicians using mixed effect regression modelling. The main three significant influencing factors identified were: parental agreement with the decision to support initiation, the family's support network, and proximity to a tertiary care centre. Additional comments from participants focused on family support, and the importance of on-going communication with the family.

CONCLUSION

As the rights of those with disabilities improve and participation of adolescents in decision-making becomes more established, effective communications with the family around goals of care and particular sensitivity and reflective practice around methods of consensus building will likely contribute to a positive decision-making process at this difficult time.

Prognostic prediction of sepsis patient using transformer with skip connected token for tabular data

Sepsis is known as a common syndrome in intensive care units (ICU), and severe sepsis and septic shock are among the leading causes of death worldwide. The purpose of this study is to develop a deep learning model that supports clinicians in efficiently managing sepsis patients in the ICU by predicting mortality, ICU length of stay (>14 days), and hospital length of stay (>30 days). The proposed model was developed using 591 retrospective data with 16 tabular data related to a sequential organ failure assessment (SOFA) score. To analyze tabular data, we designed the modified architecture of the transformer that has achieved extraordinary success in the field of languages and computer vision tasks in recent years. The main idea of the proposed model is to use a skip-connected token, which combines both local (feature-wise token) and global (classification token) information as the output of a transformer encoder. The proposed model was compared with four machine learning models (ElasticNet, Extreme Gradient Boosting [XGBoost]), and Random Forest) and three deep learning models (Multi-Layer Perceptron [MLP], transformer, and Feature-Tokenizer transformer [FT-Transformer]) and achieved the best performance (mortality, area under the receiver operating characteristic (AUROC) 0.8047; ICU length of stay, AUROC 0.8314; hospital length of stay, AUROC 0.7342). We anticipate that the proposed model architecture will provide a promising approach to predict the various clinical endpoints using tabular data such as electronic health and medical records.

Efficacy of preventive interventions against ventilator-associated pneumonia in critically ill patients: an umbrella review of meta-analyses

Many meta-analyses have assessed the efficacy of preventive interventions against ventilator-associated pneumonia (VAP) in critically ill patients. However, there has been no comprehensive analysis of the strength and quality of evidence to date. Systematic reviews of randomized and quasi-randomized controlled trials, which evaluated the effect of preventive strategies on the incidence of VAP in critically ill patients receiving mechanical ventilation for at least 48 h, were included in this article. We identified a total of 34 interventions derived from 31 studies. Among these interventions, 19 resulted in a significantly reduced incidence of VAP. Among numerous strategies, only selective decontamination of the digestive tract (SDD) was supported by highly suggestive (Class II) evidence (risk ratio (RR)=0.439, 95% CI: 0.362-0.532). Based on data from the sensitivity analysis, the evidence for the efficacy of non-invasive ventilation in weaning from mechanical ventilation (NIV) was upgraded from weak (Class IV) to highly suggestive (Class II) (RR=0.32, 95% CI: 0.22-0.46). All preventive interventions were not supported by robust evidence for reducing mortality. Early mobilization exhibited suggestive (Class III) evidence in shortening both intensive length of stay (LOS) in the intensive care unit (ICU) (mean difference (MD)=-0.85, 95% CI: -1.21 to -0.49) and duration of mechanical ventilation (MD=-1.02, 95% CI: -1.41 to -0.63). In conclusion, SDD and NIV are supported by robust evidence for prevention against VAP, while early mobilization has been shown to significantly shorten the LOS in the ICU and the duration of mechanical ventilation. These three strategies are recommendable for inclusion in the ventilator bundle to lower the risk of VAP and improve the prognosis of critically ill patients.

Incidence and risk factors for subsequent infections among rectal carriers with carbapenem-resistant Klebsiella pneumoniae: a systematic review and meta-analysis

BACKGROUND

Carbapenem-resistant Klebsiella pneumoniae (CRKp) is a major pathogen causing nosocomial infections with a high mortality and poor prognosis. Gastrointestinal carriage has been acknowledged as the primary reservoir of CRKp infections.

AIM

To explore the incidence and risk factors associated with CRKp infection following colonization.

METHODS

The PubMed, Web of Science, and Cochrane Library databases were searched for relevant articles published between December 1998 and June 2023. Pooled estimates with a 95% confidence interval (CI) were calculated for the incidence rate, whereas pooled odds ratios (ORs) were calculated for the risk factors for which the OR was reported in three or more studies.

FINDINGS

Fourteen studies were included in the review with 5483 patients for the assessment of incidence, whereas seven of these studies with 2170 patients were included for the analysis of risk factors. In the meta-analysis, the incidence of CRKp infections after colonization was 23.2% (17.9-28.5). Additionally, three independent risk factors for subsequent CRKp infections were identified as admission to the intensive care unit (ICU) (2.59; 95% CI: 1.64-4.11), invasive procedures (2.53; 95% CI: 1.59-4.03), and multi-site colonization (6.24; 95% CI: 2.38-16.33).

CONCLUSION

This review reveals the incidence of CRKp infections in rectal carriers in different countries, emphasizing the role of rectal colonization with CRKp as an important source of nosocomial infections. Significantly, the risk factors indicated in this review can assist clinicians in identifying CRKp carriers with an elevated risk of subsequent infections, thereby enabling further measures to be taken to prevent nosocomial infections.

Identifying the barriers and facilitators to implementation of ventilator bundle in the nepalese intensive care unit: A descriptive qualitative study

BACKGROUND

A ventilator bundle is an effective preventive strategy against the development of ventilator-associated pneumonia (VAP). However, in clinical practice ventilator bundle implementation is poor. Understanding the barriers to ventilator bundle implementation in low- and middle-income countries can inform the development of effective implementation strategies to reduce the burden of VAP.

OBJECTIVES

The primary objective of this study was to explore the barriers and facilitators of ventilator bundle implementation perceived by healthcare professionals (HCPs) working in intensive care units (ICU) in Nepal. The secondary objective was to prioritise the barriers when developing implementation strategies.

METHODS

This study used a pragmatic approach comprising a series of methods to identify the implementation strategies: (i) Barriers and facilitators were explored using a qualitative study design. Twenty-one HCPs selected using the maximum variation sampling technique from a large tertiary hospital, completed semistructured interviews. All the interviews were recorded, transcribed word-by-word, and uploaded into NVivo for analysis using the thematic analysis approach. (ii) After analysis, nine participants were selecteded to determine the priority order of the barriers using a barrier identification and mitigation tool.

RESULTS

The data analysis revealed five main themes and 19 subthemes that affected ventilator bundle implementation. The main themes were provider-related factors, organisational and practice-related factors, performances of work, environmental conditions, and patient-related factors. The common barriers were job insecurity, poor knowledge, negative attitude, insufficient equipment, and severity of patient disease. Common facilitators were educational training, equipment functioning, adequate staff, strong leadership, and organisational support. Finally, eight main barriers were prioritised to target the change.

CONCLUSION

The barriers to implementing ventilator bundles in ICUs were identified. Focussing on addressing the prioritised barriers may aid in improving patient care and safety in ICUs. Results may guide HCPs in the development of implementation strategies to reduce the burden of VAP.

ICU-acquired infections in immunocompromised patients

Immunocompromised patients account for an increasing proportion of the typical intensive care unit (ICU) case-mix. Because of the increased availability of new drugs for cancer and auto-immune diseases, and improvement in the care of the most severely immunocompromised ICU patients (including those with hematologic malignancies), critically ill immunocompromised patients form a highly heterogeneous patient population. Furthermore, a large number of ICU patients with no apparent immunosuppression also harbor underlying conditions altering their immune response, or develop ICU-acquired immune deficiencies as a result of sepsis, trauma or major surgery. While infections are associated with significant morbidity and mortality in immunocompromised critically ill patients, little specific data are available on the incidence, microbiology, management and outcomes of ICU-acquired infections in this population. As a result, immunocompromised patients are usually excluded from trials and guidelines on the management of ICU-acquired infections. The most common ICU-acquired infections in immunocompromised patients are ventilator-associated lower respiratory tract infections (which include ventilator-associated pneumonia and tracheobronchitis) and bloodstream infections. Recently, several large observational studies have shed light on some of the epidemiological specificities of these infections-as well as on the dynamics of colonization and infection with multidrug-resistant bacteria-in these patients, and these will be discussed in this review. Immunocompromised patients are also at higher risk than non-immunocompromised hosts of fungal and viral infections, and the diagnostic and therapeutic management of these infections will be covered. Finally, we will suggest some important areas of future investigation.

The application of two drainage angles in neurocritical care patients with complicated pneumonia: a randomized controlled trial

Background

Although head elevation is an early first-line treatment for elevated intracranial pressure (ICP), the use of the head-down or prone position in managing neurocritical patients is controversial because a change in a position directly affects the intracranial and cerebral perfusion pressure, which may cause secondary brain injury and affect patient outcomes. This study compared the effects of two postural drainage positions (30° head-up tilt and 0° head flat) on the prognosis of neurocritical care patients with complicated pneumonia and a clinical pulmonary infection score (CPIS) ≥5 points to provide a reference for selecting appropriate postural drainage positions for patients with pneumonia in neurocritical care units.

Methods

A prospective randomized controlled study was conducted with 62 neurocritical care patients with complicated pneumonia. The patients were categorized into control (=31) and experimental (=31) groups in a 1:1 ratio using a simple randomized non-homologous pairing method. Emphasis was placed on matching the baseline characteristics of the two groups, including patient age, sex, height, weight, Glasgow Coma Scale score, heart rate, mean arterial pressure, cough reflex, and mechanical ventilation usage to ensure comparability. Both groups received bundled care for artificial airway management. The control group maintained a standard postural drainage position of 0° head-flat, whereas the experimental group maintained a 30° head-up tilt. The efficacy of the nursing intervention was evaluated by comparing the CPIS and other therapeutic indicators between the two groups after postural drainage.

Results

After the intervention, the within-group comparison showed a significant decrease in the CPIS (P < 0.001); procalcitonin levels showed a significant decreasing trend (P < 0.05); the arterial oxygen pressure significantly increased (P < 0.05); the oxygenation index significantly increased (P < 0.001); and the aspiration risk score showed a significant decreasing trend (P < 0.001). A between-group comparison showed no significant differences in any of the indicators before and after the intervention (P < 0.05).

Conclusion

Postural drainage positions of 30° head-up tilt and 0° head-flat can improve the CPIS and oxygenation in patients without adverse effects. Therefore, we recommend that patients under neurological intensive care and having pneumonia be drained in a 30° head-up tilt position with good centralized care of the lung infection.

Trial registration

The study, "Study of Angles of Postural Drainage in Neurocritical Patients with Pneumonia," was registered in the Protocol Registration Data Element Definitions for Interventional Study database (# ChiCTR2100042155); date of registration: 2021-01-14.

Violence against healthcare professionals in intensive care units: a systematic review and meta-analysis of frequency, risk factors, interventions, and preventive measures

BACKGROUND

To assess the frequency, risk factors, consequences, and prevention of violence against healthcare workers in intensive care units.

METHODS

PubMed, Scopus, Google Scholar, EMBASE, Cochrane, and Web of Science were searched for studies on violence against healthcare workers in adult intensive care units. Risk factors, patient characteristics, and implications for healthcare workers were collected. Study quality, bias, and level of evidence were assessed using established tools.

RESULTS

Seventy-five studies with 139,533 healthcare workers from 32 countries were included. The overall median frequency of violence was 51% (IQR 37-75%). Up to 97% of healthcare workers experienced verbal violence, and up to 82% were victims of physical violence. Meta-analysis of frequency revealed an average frequency of 31% (95% CI 22-41%) for physical violence, 57% for verbal violence (95% CI 48-66%), and 12% for sexual violence (95% CI 4-23%). Heterogeneity was high according to the I2 statistics. Patients were the most common perpetrators (median 56%), followed by visitors (median 22%). Twenty-two studies reported increased risk ratios of up to 2.3 or odds ratios of up to 22.9 for healthcare workers in the ICU compared to other healthcare workers. Risk factors for experiencing violence included young age, less work experience, and being a nurse. Patients who exhibited violent behavior were often male, older, and physically impaired by drugs. Violence was underreported in up to 80% of cases and associated with higher burnout rates, increased anxiety, and higher turnover intentions. Overall the level of evidence was low.

CONCLUSIONS

Workplace violence is frequent and underreported in intensive care units, with potential serious consequences for healthcare workers, calling for heightened awareness, screening, and preventive measures. The potential risk factors for violence should be further investigated.

SYSTEMATIC REVIEW REGISTRATION

The protocol for this review was registered with Prospero on January 15, 2023 (ID CRD42023388449).