Former smoking, but not active smoking, is associated with delirium in postoperative ICU patients: a matched case-control study.

Objective: To examine the relationship between current and former smoking and the occurrence of delirium in surgical Intensive Care Unit (ICU) patients. Methods: We conducted a single center, case-control study involving 244 delirious and 251 non-delirious patients that were admitted to our ICU between 2018 and 2022. Using propensity score analysis, we obtained 115 pairs of delirious and non-delirious patients matched for age and Simplified Acute Physiology Score II (SAPS II). Both groups of patients were further stratified into non-smokers, active smokers and former smokers, and logistic regression was performed to further investigate potential confounders. Results: Our study revealed a significant association between former smoking and the incidence of delirium in ICU patients, both in unmatched (adjusted odds ratio (OR): 1.82, 95% confidence interval (CI): 1.17-2.83) and matched cohorts (OR: 3.0, CI: 1.53-5.89). Active smoking did not demonstrate a significant difference in delirium incidence compared to non-smokers (unmatched OR = 0.98, CI: 0.62-1.53, matched OR = 1.05, CI: 0.55-2.0). Logistic regression analysis of the matched group confirmed former smoking as an independent risk factor for delirium, irrespective of other variables like surgical history (p = 0.010). Notably, also respiratory and vascular surgeries were associated with increased odds of delirium (respiratory: OR: 4.13, CI: 1.73-9.83; vascular: OR: 2.18, CI: 1.03-4.59). Medication analysis showed that while Ketamine and Midazolam usage did not significantly correlate with delirium, Morphine use was linked to a decreased likelihood (OR: 0.27, 95% CI: 0.13-0.55). Discussion: Nicotine's complex neuropharmacological impact on the brain is still not fully understood, especially its short-term and long-term implications for critically ill patients. Although our retrospective study cannot establish causality, our findings suggest that smoking may induce structural changes in the brain, potentially heightening the risk of postoperative delirium. Intriguingly, this effect seems to be obscured in active smokers, potentially due to the recognized neuroprotective properties of nicotine. Our results motivate future prospective studies, the results of which hold the potential to substantially impact risk assessment procedures for surgeries.

Prevalence, risk factors and impact of delirium in adult inpatients in a tertiary care hospital: A point prevalence study.

AIMS: To describe the point prevalence, risk factors and possible outcomes of delirium in inpatients. DESIGN: A cross-sectional point prevalence study. BACKGROUND: Delirium is an acute brain syndrome that negatively affects patients, healthcare professionals and institutions alike; it is common in inpatient settings and is preventable in about one third of cases. Although guidelines recommend systematic screening and assessment, delirium is often unrecognised, undiagnosed and uncoded. There is a lack of valid data on this patient safety indicator in German-speaking countries. METHODS: The study was conducted in a tertiary care hospital in Switzerland on 5 July 2022. Specially trained registered nurses collected data from all patients meeting the inclusion criteria using CAM, ICDSC or mCAM-ED. Data were analysed descriptively with stratification by delirium status, setting and surgery. RESULTS: The point prevalence across all settings was 6.9% (27/390), with large variation between settings: ICU 28.6% (4/14), IMC 28.0% (7/25), wards 4.6% (15/326) and ED 4% (1/25). Surgical patients were almost twice as likely to be affected as medical patients (8.9% vs. 4.8%). Patients with delirium differed most clearly from those without by having a larger number of ICD-10 F-diagnoses, a larger number of medications and higher age, which are known risk factors. Moreover, those with delirium had more missed diagnoses, increased mortality, more adverse events and higher costs. CONCLUSIONS: A significant number of patients experienced delirium and adverse clinical outcomes. Missed delirium diagnoses may further jeopardise patient safety and result in lost revenue. It remains unclear to what extent the risk factors and effects of delirium are causal and what determinants underlie missed diagnoses. RELEVANCE TO CLINICAL PRACTICE: Consistent identification of high-risk patients and treatment settings with elevated risk, accompanied by the implementation of effective preventive and management strategies, is critical to addressing delirium.

[Pictograms for assessing pain quality in foreign language-speaking patients: a quality improvement study]. / Piktogramme zur Erfassung der Schmerzqualität bei fremdsprachigen Patient_innen.

Pictograms for assessing pain quality in foreign language-speaking patients: a quality improvement study Abstract. Background: Numerical assessment instruments allow foreign language patients to quantify their pain. However, for a complete assessment of the pain situation, the description of pain quality is also important. Problem: To assess pain quality completely, the treatment team lacked a tool. Objective: Foreign language-speaking patients can communicate their pain to the treatment team and are actively involved in the treatment process. The treatment team develops tools for recording the quality of pain and reflects on their experiences. Method: In a practice development project, pictograms of the Iconic Pain Assessment Tool 2 (IPAT2) where chosen to assess pain quality. The pictograms were prepared for everyday use, tested, and evaluated. Results: With the help of pictograms, quality of pain of 72 patients was documented almost 50% more frequently than before the study. The nursing team experienced IPAT2 as helpful in obtaining information and deepening the quality of the relationship. A feeling of being seen and understood emerged. Discussion: Pictograms are a valid method for nonverbal pain assessment. However, there is a risk of misunderstanding. The study only allowed an external assessment of patient's perceptions. An empirical investigation of the patient's view would be desirable. Conclusions: Further use and development of pictograms for communicating with foreign language-speaking patients are recommended.

Participatory development and implementation of a dementia care pathway with intervention bundles in acute care during the coronavirus pandemic: A process evaluation study.

AIMS: To explore the implementation of a dementia care pathway in an acute care setting. BACKGROUND: Dementia care in acute settings is often constrained by contextual factors. We developed an evidence-based care pathway with intervention bundles, and implemented it on two trauma units, with the aim to empower staff and improve quality care. DESIGN: Process evaluation using quantitative and qualitative methods. METHODS: Pre-implementation, unit staff completed a survey (n = 72) assessing family and dementia care skills and level of evidence-based dementia care. Post-implementation, champions (n = 7) completed the same survey, with additional questions on acceptability, appropriateness and feasibility, and participated in a focus group interview. Data were analysed using descriptive statistics and content analysis guided by the Consolidated Framework for Implementation Research (CFIR). REPORTING GUIDELINE: Standards for Reporting Qualitative Research Checklist. RESULTS: Pre-implementation, staff's perceived skills in family and dementia care were moderate overall, with high skills in 'building relationships' and 'sustaining personhood'. Evidence-based interventions were delivered seldom to frequent, with 'individualized care' scoring lowest and 'assessing cognition' scoring highest. Implementation of the care pathway/intervention bundles was overshadowed by the pandemic, and failed due to major organisational- and process-related barriers. Acceptability scored highest and feasibility lowest, with concerns relating to complexity and compatibility of pathways/bundles when introduced into clinical routines. CONCLUSIONS: Our study implies that organisational and process factors are the most influential determinants to the implementation of dementia care in acute settings. Future implementation efforts should draw on the evolving evidence within implementation science and dementia care research to ensure effective integration and improvement process. RELEVANCE TO CLINICAL PRACTICE: Our study provides important learning around improving care for persons with dementia and their families in hospitals. PATIENT OR PUBLIC CONTRIBUTION: A family caregiver was involved in the development of the education and training programme.

Effects of Psychotherapy on Glutamatergic Neurotransmission.

INTRODUCTION: Psychodynamic psychotherapy is an effective and widely used treatment for major depressive disorder (MDD); however, little is known about neurobiological changes associated with induced symptom improvement. METHODS: Proton magnetic resonance spectroscopy with a two-dimensional J-resolved sequence served to test the relationship between glutamate (Glu) and glutamine (Gln) levels, measured separately in pregenual anterior cingulate cortex (pgACC) and the anterior midcingulate cortex (aMCC) as a control region, with change in depression symptoms after 6 months of weekly psychodynamic psychotherapy sessions in MDD patients. Depressed (N = 45) and healthy (N = 30) subjects participated in a baseline proton magnetic resonance spectroscopy measurement and a subgroup of MDD subjects (N = 21) then received once-a-week psychodynamic psychotherapy and participated in a second proton magnetic resonance spectroscopy measurement after 6 months. Change in depression symptoms was assessed using the Hamilton Depression Rating Scale (HAMD). RESULTS: Higher pretreatment pgACC Gln concentrations in MDD patients compared to healthy controls were associated with symptom severity. Patients and controls did not differ regarding Gln levels in aMCC nor regarding Glu levels in both regions. The association of pgACC Gln concentration and severity of depressive symptoms was reversed after 6 months of psychotherapy in MDD subjects. Regarding Gln in aMCC as well as Glu in both regions, there were no significant associations with improvement of depressive symptoms in the course of psychotherapy. DISCUSSION: Findings indicate specific regional effects of psychodynamic psychotherapy on glutamatergic neurotransmission and thereby highlight the key role of the pgACC in both depression pathophysiology and recovery.

Sex-specific clinical characteristics and treatment responses in delirium management: findings from a prospective cohort study in elderly patients.

Delirium incidence and phenotype differ between sexes. Sex differences in the selection of treatment strategies remain elusive. We evaluated sex-specific responses to non- and pharmacological management. In this observational prospective cohort study conducted at the University Hospital Zurich, Switzerland, 602 patients managed for delirium were analyzed. Remission and benefit ratios of treatments were calculated using Cox regression models. Baseline characteristics were similar in both sexes. Overall, 89% of all patients (540/602) received pharmacological management for delirium, most (77%) with one or two different medications. An equal number of male and female patients had either no medication ( P  = 0.321) or three and more medications ( P  = 0.797). Men had two different medications more often ( P  = 0.009), while women more frequently received one medication ( P  = 0.037). Remission rates within 20 days were higher in non-pharmacological treatment and similar between sexes, with odds of 1.36 in females, and 2.3 in males. Non-pharmacological treatment was equally efficacious in both sexes. Women who received supportive treatment and monotherapy had equal odds of remission. Men fared better with supportive care compared to pharmacologic therapies. Remission rates with different management strategies were similar between sexes. No sex differences were found regarding phenotypes, clinical course, and response to therapy.

Nurse-patient interaction during the Covid-19 pandemic: Creating and maintaining an interactive space for care.

AIMS: To explore nurse-patient interactions during the Covid-19 pandemic from both nurses' and patients' perspectives. DESIGN: Qualitative study using constructive grounded theory. METHODS: A total of 34 patients and 49 nurses from acute and home care settings participated in individual or focus group interviews between December 2020 and May 2021. Data were analysed by a team of researchers using coding, memo-writing, theoretical sampling and constant comparison and integration. RESULTS: We identified the creation and maintenance of an interactive space as the main social process. This interactive space was shaped by the care context and the course of the pandemic. For nurses, four factors were key, namely protecting oneself and others, navigating communication barriers, adapting nursing actions to the evolving situation, and providing emotional care work. Patients experienced attentive caring relationships with nurses and felt that, for the most part, their individual needs had been met despite the pandemic challenges. CONCLUSION: Nurses and patients created an interactive space in which they were able to provide and receive the necessary care. Maintaining the interactive space was often challenging, and required an intentional effort by nurses, particularly in acute care settings. The findings illustrate that nurses ensured the provision of necessary care even during a public health crisis, thereby enabling patient access to good quality care. IMPACT: Nurse-patient relationships are important for effective, person-centred care delivery. Despite the pandemic challenges, nurses managed to uphold their caring imperative and ensure quality care. Findings provide further insights on the importance of nurse-patient interaction in maintaining quality care. They inform models of nursing care delivery and strategies to support quality care during public health crises.

Efficacy of a brief psychological intervention to reduce distress in healthcare workers during the COVID-19 pandemic: A randomized controlled trial.

INTRODUCTION: The COVID-19 pandemic has led to a sharp increase in mental health problems among healthcare workers (HCWs). Accessible interventions for HCWs are needed to reduce distress during the pandemic. OBJECTIVE: This study evaluated the efficacy of a brief psychological intervention (RECHARGE) delivered by videoconferencing to reduce psychological distress in HCWs. METHOD: This single-blind, parallel, randomized controlled trial enrolled HCWs in Switzerland who screened positive for psychological distress. Participants were randomly allocated to RECHARGE, that taught behavioral strategies or active treatment as usual (ATAU). Primary outcome was the total score on the Kessler Psychological Distress Scale (K10) measured at baseline, post-intervention, 2-month (primary outcome time point), and 6-month follow-up. Secondary outcomes included worry, anxiety and depression, burnout, traumatic stress, moral injury distress, and work performance. RESULTS: Between August 2020 and May 2021, 160 HCWs were enrolled in the study (RECHARGE = 82, ATAU = 78). Relative to ATAU, at 2 months RECHARGE led to a greater reduction in psychological distress (mean difference = 1.86, 95% confidence interval [CI .28, .34], p = .02; effect size = .37), and greater reductions in worry, burnout, and moral injury distress. These effects were not maintained at 6 months. CONCLUSIONS: This trial provides initial evidence that a brief psychological intervention delivered via videoconferencing results in significant reductions in mental health problems arising during the COVID-19 pandemic. Booster sessions or digital tools may be needed to maintain the initial gains achieved by RECHARGE. This intervention may have utility in improving the mental health of HCWs both during pandemics and everyday stressors. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Predisposing and precipitating risk factors for delirium in gastroenterology and hepatology: Subgroup analysis of 718 patients from a hospital-wide prospective cohort study.

Background and Aims: Delirium is the most common acute neuropsychiatric syndrome in hospitalized patients. Higher age and cognitive impairment are known predisposing risk factors in general hospital populations. However, the interrelation with precipitating gastrointestinal (GI) and hepato-pancreato-biliary (HPB) diseases remains to be determined. Patients and methods: Prospective 1-year hospital-wide cohort study in 29'278 adults, subgroup analysis in 718 patients hospitalized with GI/HPB disease. Delirium based on routine admission screening and a DSM-5 based construct. Regression analyses used to evaluate clinical characteristics of delirious patients. Results: Delirium was detected in 24.8% (178/718). Age in delirious patients (median 62 years [IQR 21]) was not different to non-delirious (median 60 years [IQR 22]), p = 0.45). Dementia was the strongest predisposing factor for delirium (OR 66.16 [6.31-693.83], p < 0.001). Functional impairment, and at most, immobility increased odds for delirium (OR 7.78 [3.84-15.77], p < 0.001). Patients with delirium had higher in-hospital mortality rates (18%; OR 39.23 [11.85-129.93], p < 0.001). From GI and HPB conditions, cirrhosis predisposed to delirium (OR 2.11 [1.11-4.03], p = 0.023), while acute renal failure (OR 4.45 [1.61-12.26], p = 0.004) and liver disease (OR 2.22 [1.12-4.42], p = 0.023) were precipitators. Total costs were higher in patients with delirium (USD 30003 vs. 10977; p < 0.001). Conclusion: Delirium in GI- and HPB-disease was not associated with higher age per se, but with cognitive and functional impairment. Delirium needs to be considered in younger adults with acute renal failure and/or liver disease. Clinicians should be aware about individual risk profiles, apply preventive and supportive strategies early, which may improve outcomes and lower costs.

Delirium screening in an acute care setting with a machine learning classifier based on routinely collected nursing data: A model development study.

Delirium screening in acute care settings is a resource intensive process with frequent deviations from screening protocols. A predictive model relying only on daily collected nursing data for delirium screening could expand the populations covered by such screening programs. Here, we present the results of the development and validation of a series of machine-learning based delirium prediction models. For this purpose, we used data of all patients 18 years or older which were hospitalized for more than a day between January 1, 2014, and December 31, 2018, at a single tertiary teaching hospital in Zurich, Switzerland. A total of 48,840 patients met inclusion criteria. 18,873 (38.6%) were excluded due to missing data. Mean age (SD) of the included 29,967 patients was 71.1 (12.2) years and 12,231 (40.8%) were women. Delirium was assessed with the Delirium Observation Scale (DOS) with a total score of 3 or greater indicating that a patient is at risk for delirium. Additional measures included structured data collected for nursing process planning and demographic characteristics. The performance of the machine learning models was assessed using the area under the receiver operating characteristic curve (AUC). The training set consisted of 21,147 patients (mean age 71.1 (12.1) years; 8,630 (40.8%) women|) including 233,024 observations with 16,167 (6.9%) positive DOS screens. The test set comprised 8,820 patients (median age 71.1 (12.4) years; 3,601 (40.8%) women) with 91,026 observations with 5,445 (6.0%) positive DOS screens. Overall, the gradient boosting machine model performed best with an AUC of 0.933 (95% CI, 0.929 - 0.936). In conclusion, machine learning models based only on structured nursing data can reliably predict patients at risk for delirium in an acute care setting. Prediction models, using existing data collection processes, could reduce the resources required for delirium screening procedures in clinical practice.

Corrigendum: Risk Factors for Delirium Are Different in the Very Old: A Comparative One-Year Prospective Cohort Study of 5,831 Patients.

[This corrects the article DOI: 10.3389/fpsyt.2021.655087.].

Discharge Destinations of Delirious Patients: Findings From a Prospective Cohort Study of 27,026 Patients From a Large Health Care System.

OBJECTIVES: Delirium is known to contribute to increased rates of institutionalization and mortality. The full extent of adverse outcomes, however, remains understudied. We aimed to systematically assess the discharge destinations and mortality risk in delirious patients in a large sample across all hospital services. DESIGN: Pragmatic prospective cohort study of consecutive admissions to a large health care system. SETTING AND PARTICIPANTS: A total of 27,026 consecutive adults (>18 years old) with length of stay of at least 24 hours in a tertiary care center from January 1 to December 31, 2014. METHODS: Presence of delirium determined by routine delirium screening. Clinical characteristics, discharge destination, and mortality were collected. Calculation of odds ratios (ORs) with logistic regression with adjustment for age, sex, and Charlson comorbidity index (CCI). RESULTS: Delirium was detected in 19.7% of patients (5313 of 27,026), median age of delirious patients was 56 years (25-75 interquartile range = 37-70). The electronic health record (DSM-5-based) delirium algorithm correctly identified 93.3% of delirium diagnoses made by consultation-liaison psychiatrists. Across services, the odds of delirious patients returning home was significantly reduced [OR 0.12; confidence interval (CI) 0.10-0.13; P < .001]. Rather, these patients were transferred to acute rehabilitation (OR 4.15; CI 3.78-4.55; P < .001) or nursing homes (OR 4.12; CI 3.45-4.93; P < .001). Delirious patients had a significantly increased adjusted mortality risk (OR 30.0; CI 23.2-39.4; P < .001). CONCLUSIONS AND IMPLICATIONS: This study advances our understanding of the discharge destination across all services in adults admitted to a large hospital system. Delirium was associated with reduced odds of returning home, increased odds of discharge to a setting of higher dependency, and excess mortality independent of comorbidity, age, and sex. These findings emphasize the potentially devastating outcomes associated with delirium and highlight the need for timely diagnosis and hospital-wide management.

Delirium: Prevalence and outcome in the very old in 27 medical departments during a one-year prospective study.

OBJECTIVE: The prevalence and effects of delirium in very old individuals aged ≥80 years have not yet been systematically evaluated. Therefore, this large single-center study of the one-year prevalence of delirium in 3,076 patients in 27 medical departments of the University Hospital of Zurich was conducted. METHODS: Patient scores on the Delirium Observation Screening scale, Intensive Care Delirium Screening Checklist, Diagnostic and Statistical Manual, 5th edition, and electronic Patient Assessment-Acute Care (nursing tool) resulted in the inclusion of 3,076 individuals in 27 departments. The prevalence rates were determined by simple logistic regressions, odds ratios (ORs), and confidence intervals. RESULTS: Of the 3,076 patients, 1,285 (41.8%) developed delirium. The prevalence rates in the 27 departments ranged from 15% in rheumatology (OR = 0.30) to 73% in intensive care (OR = 5.25). Delirious patients were more likely to have been admitted from long-term care facilities (OR = 2.26) or because of emergencies (OR = 2.24). The length of their hospital stay was twice as long as that for other patients. Some died before discharge (OR = 24.88), and others were discharged to nursing homes (OR = 2.96) or assisted living facilities (OR = 2.2). CONCLUSION: This is the largest study to date regarding the prevalence of delirium in patients aged ≥80 years and the medical characteristics of these patients. Almost two out of five patients developed delirium, with a high risk of loss of independence and mortality.

Development of health care workers' mental health during the SARS-CoV-2 pandemic in Switzerland: two cross-sectional studies.

BACKGROUND: Virus outbreaks such as the current SARS-CoV-2 pandemic are challenging for health care workers (HCWs), affecting their workload and their mental health. Since both, workload and HCW's well-being are related to the quality of care, continuous monitoring of working hours and indicators of mental health in HCWs is of relevance during the current pandemic. The existing investigations, however, have been limited to a single study period. We examined changes in working hours and mental health in Swiss HCWs at the height of the pandemic (T1) and again after its flattening (T2). METHODS: We conducted two cross-sectional online studies among Swiss HCWs assessing working hours, depression, anxiety, and burnout. From each study, 812 demographics-matched participants were included into the analysis. Working hours and mental health were compared between the two samples. RESULTS: Compared to prior to the pandemic, the share of participants working less hours was the same in both samples, whereas the share of those working more hours was lower in the T2 sample. The level of depression did not differ between the samples. In the T2 sample, participants reported more anxiety, however, this difference was below the minimal clinically important difference. Levels of burnout were slightly higher in the T2 sample. CONCLUSIONS: Two weeks after the health care system started to transition back to normal operations, HCWs' working hours still differed from their regular hours in non-pandemic times. Overall anxiety and depression among HCWs did not change substantially over the course of the current SARS-CoV-2 pandemic.

Delirium in trauma patients: a 1-year prospective cohort study of 2026 patients.

BACKGROUND: Delirium in trauma surgery is common, especially post-operatively, but medical characteristics, risk factors and residence post-discharge have not comprehensively been investigated in all trauma patients. METHODS: Over 1 year, 2026 trauma patients were prospectively screened for delirium with the following tools: Delirium Observation screening scale (DOS), Intensive Care Delirium Screening Checklist (ICDSC) and a DSM (Diagnostic and Statistical Manual)-5, nursing tool (ePA-AC) construct. Risk factors-predisposing und precipitating-for delirium were assessed via multiple regression analysis. RESULTS: Of 2026 trauma patients, 440 (21.7%) developed delirium, which was associated with an increased risk of assisted living (OR 6.42, CI 3.92-10.49), transfer to nursing home (OR 4.66, CI 3.29-6.6), rehabilitation (OR 3.96, CI 3.1-5.1), or death (OR 70.72, CI 22-227.64). Intensive care management (OR 18.62, CI 14.04-24.68), requirement of ventilation (OR 32.21, CI 21.27-48.78), or its duration (OR 67.22, CI 33.8-133.71) all increased the risk for developing delirium. Relevant predisposing risk factors were dementia (OR 50.92, CI 15.12-171.45), cardiac insufficiency (OR 11.76, CI 3.6-38.36), and polypharmacy (OR 5.9, CI 4.01-8.68).Relevant precipitating risk factors were brain edema (OR 40.53, CI 4.81-341.31), pneumonia (OR 39.66, CI 8.89-176.93) and cerebral inflammation (OR 21.74, CI 2.34-202.07). CONCLUSION: Delirium in trauma patients is associated with poor outcome as well as with intensive care management and various predisposing and/or precipitating factors. Three quarters of patients who had undergone delirium were not able to live independently at home any more.

Predisposing and Precipitating Risk Factors for Delirium in Elderly Patients Admitted to a Cardiology Ward: An Observational Cohort Study in 1,042 Patients.

Aim: Although the risk factors for delirium in general medicine are well-established, their significance in cardiac diseases remains to be determined. Therefore, we evaluated the predisposing and precipitating risk factors in patients hospitalized with acute and chronic heart disease. Methods and Results: In this observational cohort study, 1,042 elderly patients (≥65 years) admitted to cardiology wards, 167 with and 875 without delirium, were included. The relevant sociodemographic and cardiac- and medical-related clusters were assessed by simple and multiple regression analyses and prediction models evaluating their association with delirium. The prevalence of delirium was 16.0%. The delirious patients were older (mean 80 vs. 76 years; p < 0.001) and more often institutionalized prior to admission (3.6 vs. 1.4%, p = 0.05), hospitalized twice as long (12 ± 10 days vs. 7 ± 7 days; p < 0.001), and discharged more often to nursing homes (4.8 vs. 0.6%, p < 0.001) or deceased (OR, 2.99; 95% CI, 1.53-5.85; p = 0.003). The most relevant risk factor was dementia (OR, 18.11; 95% CI, 5.77-56.83; p < 0.001), followed by history of stroke (OR, 6.61; 95% CI 1.35-32.44; p = 0.020), and pressure ulcers (OR, 3.62; 95% CI, 1.06-12.35; p = 0.040). The predicted probability for developing delirium was highest in patients with reduced mobility and institutionalization prior to admission (PP = 31.2%, p = 0.001). Of the cardiac diseases, only valvular heart disease (OR, 1.57; 95% CI, 1.01-2.44; p = 0.044) significantly predicted delirium. The patients undergoing cardiac interventions did not have higher rates of delirium (OR, 1.39; 95% CI 0.91-2.12; p = 0.124). Conclusion: In patients admitted to a cardiology ward, age-related functional and cognitive impairment, history of stroke, and pressure ulcers were the most relevant risk factors for delirium. With regards to specific cardiological factors, only valvular heart disease was associated with risk for delirium. Knowing these factors can help cardiologists to facilitate the early detection and management of delirium.

Burnout, depression and anxiety among Swiss medical students - A network analysis.

It is well established that burnout in medical students is associated with depression and anxiety at a syndromal level. Moreover, there is an ongoing debate about the extent to which burnout overlaps with depression and anxiety. The emerging network approach to psychopathology offers a new perspective on the interrelations between mental disorders focusing on symptom-level association. In this cross-sectional study, we exploratively investigated the associations among burnout, depression, and anxiety in 574 swiss medical students using a network analytic approach for the first time. Symptoms of depression and anxiety were assessed with the Patient Health Questionnaire and Generalized Anxiety Disorder respectively. Burnout was assessed with two single-item questions, one referring to emotional exhaustion and the other to depersonalization. We found a dense network in which at least one dimension of burnout was related to eleven of the sixteen included symptoms. This suggests that burnout is closely related to depression and anxiety but also has its own characteristics. Notably, suicidal ideation was not associated with either emotional exhaustion or depersonalization after adjusting for the influence of the remaining symptoms of anxiety and depression. Hence, the well-documented relationship between burnout and suicidal ideation in medical students may be entirely mediated by the experience of anxiety and depression. Hence, the well-documented relationship between burnout and suicidal ideation in medical students might be fully mediated by the experience of anxiety and depression. The collection of the sample after the first wave of infections during the SARS-CoV2 pandemic and the non-representativeness of the investigated sample limit the study's generalizability.

Economic Impact of Poststroke Delirium and Associated Risk Factors: Findings From a Prospective Cohort Study.

Background and Purpose: Delirium is a common severe complication of stroke. We aimed to determine the cost-of-illness and risk factors of poststroke delirium (PSD). Methods: This prospective single-center study included n=567 patients with acute stroke from a hospital-wide delirium cohort study and the Swiss Stroke Registry in 2014. Delirium was determined by Delirium Observation Screening Scale or Intensive Care Delirium Screening Checklist 3 times daily during the first 3 days of admission. Costs reflected the case-mix index and diagnosis-related groups from 2014 and were divided into nursing, physician, and total costs. Factors associated with PSD were assessed with multiple regression analysis. Partial correlations and quantile regression were performed to assess costs and other factors associated with PSD. Results: The incidence of PSD was 39.0% (221/567). Patients with delirium were older than non-PSD (median 76 versus 70 years; P<0.001), 52% male (115/221) versus 62% non-PSD (214/346) and hospitalized longer (mean 11.5 versus 9.3 days; P<0.001). Dementia was the most relevant predisposing factor for PSD (odds ratio, 16.02 [2.83­90.69], P=0.002). Moderate to severe stroke (National Institutes of Health Stroke Scale score 16­20) was the most relevant precipitating factor (odds ratio, 36.10 [8.15­159.79], P<0.001). PSD was a strong predictor for 3-month mortality (odds ratio, 15.11 [3.33­68.53], P<0.001). Nursing and total costs were nearly twice as high in PSD (P<0.001). There was a positive correlation between total costs and admission National Institutes of Health Stroke Scale (correlation coefficient, 0.491; P<0.001) and length of stay (correlation coefficient, 0.787; P<0.001) in all patients. Quantile regression revealed rising nursing and total costs associated with PSD, higher National Institutes of Health Stroke Scale, and longer hospital stay (all P<0.05). Conclusions: PSD was associated with greater stroke severity, prolonged hospitalization, and increased nursing and total costs. In patients with severe stroke, dementia, or seizures, PSD is anticipated, and additional costs are associated with hospitalization.

Anticipating control over aversive stimuli is mediated by the medial prefrontal cortex: An fMRI study with healthy adults.

The anticipation of control over aversive events in life is relevant for our mental health. Insights on the underlying neural mechanisms remain limited. We developed a new functional magnetic resonance imaging (fMRI) task that uses auditory stimuli to explore the neural correlates of (1) the anticipation of control over aversion and (2) the processing of aversion. In a sample of 25 healthy adults, we observed increased neural activation in the medial prefrontal cortex (ventromedial prefrontal cortex and rostral anterior cingulate cortex), other brain areas relevant for reward anticipation (ventral striatum, brainstem [ventral tegmental area], midcingulate cortex), and the posterior cingulate cortex when they anticipated control over aversion compared with anticipating no control (1). The processing of aversive sounds compared to neutral sounds (2) was associated with increased neural activation in the bilateral posterior insula. Our findings provide evidence for the important role of medial prefrontal regions in control anticipation and highlight the relevance of conceiving the neural mechanisms involved within a reward-based framework.

Risk Factors for Delirium Are Different in the Very Old: A Comparative One-Year Prospective Cohort Study of 5,831 Patients.

Background: In an ever-aging society, health care systems will be confronted with an increasing number of patients over 80 years ("the very old"). Currently, knowledge about and recommendations for delirium management are often based on studies in patients aged 60 to 65 years. It is not clear whether these findings apply to patients ≥80 years. Aim: Comparison of younger and older patients with delirium, especially regarding risk factors. Methods: In this prospective cohort study, within 1-year, 5,831 patients (18-80 years: n = 4,730; ≥80: n = 1,101) with delirium were enrolled. The diagnosis of delirium was based on the Delirium Observation screening scale (DOS), Intensive Care Delirium Screening Checklist (ICDSC) and a DSM (Diagnostic and Statistical Manual)-5 construct of nursing instrument. Sociodemographic trajectories, as well as the relevant predisposing and precipitating factors for delirium, were assessed via a multiple regression analysis. Results: The very old were more commonly admitted as emergencies (OR 1.42), had a greater mortality risk (OR 1.56) and displayed fewer precipitating risk factors for the development of a delirium, although the number of diagnoses were not different (p = 0.325). Predisposing factors were sufficient almost alone for the development of delirium in patients ≥ 80 years of age; in 18-80 years of age, additional precipitating factors had to occur to make a delirium possible. Conclusion: When relevant predisposing factors for delirium are apparent, patients over 80 years of age require comparatively few or no precipitating factors to develop delirium. This finding should be taken into account at hospitalization and may allow better treatment of delirium in the future.