Falls in A Tertiary Care Hospital—Association With Delirium: A Replication Study

Identifying the relationship between delirium and falls

Delirium, which may present as acute fluctuation in arousal and attention and changes in a person's behaviours, can increase the risk of falls, while a fall can increase the risk of developing delirium. There is, therefore, a fundamental relationship between delirium and falls. This article describes the main types of delirium and the challenges associated with recognition of the condition and discusses the relationship between delirium and falls. The article also describes some of the validated tools used to screen patients for delirium and includes two brief case studies to illustrate this in practice.

The Association between Delirium and In-Hospital Falls: A Cross-Sectional Analysis of a Delirium Screening Program

Methods

A cross-sectional study using delirium screening and falls reports was used to measure the association between delirium and falls. All inpatient data from August, 2018, to January, 2020, at a large academic medical center were analyzed. A multivariable logistic regression of 29,655 hospital admissions was used to understand the association between in-hospital delirium and falls.

Results

Analysis revealed a delirium rate of 12.5% (n = 3,707) of all admissions and 286 (0.9%) admissions with falls; of the falls studied, 37.6% of these patients screened positive for delirium during their admission. Relative to those who screened negative for delirium, admissions that screened positive for delirium had a 2.81 increased odds of falling.

Conclusions

Delirium and falls are related. This strong association should motivate health systems to look closely at both problems. Falls and delirium can both have immense impacts on the patient and the health system. The powerful association between them provides a window to reduce these additional patient harms. More specifically, a modern delirium screening tool should be used as part of routine risk assessment focused on reducing in-hospital falls.

Demonstrating the Value of a Standardized Cognitive Assessment Tool Through the Use of Interprofessional Rapid Safety Rounds

BACKGROUND

Understanding patients' cognitive functional status is critical to prevent adverse outcomes, such as falls and injuries. However, there is variation in nurses' proficiency in assessing patients' cognitive status, and cognitive screening tools often do not provide guidance on safety interventions to keep patients safe.

PROBLEM

Lack of appropriate cognitive screening and interventions may have contributed to increased fall rates on an acute care trauma unit.

APPROACH

A comprehensive 6-level Cognitive Pyramid, including guidance on safety interventions for each level, was developed and used during interprofessional Rapid Safety Rounds to assess patients' cognitive status.

OUTCOMES

The Cognitive Pyramid demonstrated appropriate face validity from 12 subject matter experts. After implementing the Cognitive Pyramid during interdisciplinary rounds, the fall rate decreased to 0 per 1000 admissions.

CONCLUSIONS

Assessment of patients' cognition using the Cognitive Pyramid, and implementing appropriate interventions, may help improve patient safety.

Proposing a Scientific and Technological Approach to the Summaries of Clinical Issues of Inpatient Elderly with Delirium: A Viewpoint

Background/rationale: Despite mounting evidence about delirium, this complex geriatric syndrome is still not well managed in clinical contexts. The aging population creates a very demanding area for innovation and technology in healthcare. For instance, an outline of an aging-friendly healthcare environment and clear guidance for technology-supported improvements for people at delirium risk are lacking. Objective: We aimed to foster debate about the importance of technical support in optimizing healthcare professional practice and improving the outcomes for inpatients’ at delirium risk. We focused on critical clinical points in the field of delirium worthy of being addressed by a multidisciplinary approach. Methods: Starting from a consensus workshop sponsored by the Management Perfectioning Course based at the Marco Biagi Foundation (Modena, Italy) about clinical issues related to delirium management still not addressed in our healthcare organizations, we developed a requirements’ analysis among the representatives of different disciplines and tried to formulate how technology could support the summaries of the clinical issues. We analyzed the national and international panorama by a PubMed consultation of articles with the following keywords in advanced research: “delirium”, “delirium management”, “technology in healthcare”, and “elderly population”. Results: Despite international recommendations, delirium remains underdiagnosed, underdetected, underreported, and mismanaged in the acute hospital, increasing healthcare costs, healthcare professionals’ job distress, and poor clinical outcomes. Discussion: Although all healthcare professionals recognize delirium as a severe and potentially preventable source of morbidity and mortality for hospitalized older people, it receives insufficient attention in resource allocation and multidisciplinary research. We synthesized how tech-based tools could offer potential solutions to the critical clinical points in delirium management.

Risk Factors and Characteristics of Falls Among Hospitalized Stroke Patients

Falls and fall-related injuries during hospitalization may cause serious problems and consequences for patients, their quality of life as well as increased healthcare expenses. The aim of the paper were to assess fall risks and identify risk factors, related to falls among stroke patients. This was a retrospective cohort study that included 217 neurological patients with acute stroke who have experienced fall during hospitalization. Morse Fall Scale was used to estimate a likelihood of falling for hospitalized patients. In total, 1.4% patients with acute stroke experienced a fall during hospitalization. According to the fall risk assessment, 77% of the patients presented a high risk for falls. Women, older respondents and those who were hospitalized for period longer than 22 days and who had higher levels of care, had higher values of Morse score. The most common risk factors for falls are: the presence of other medical diagnosis, the use of disability aids while walking, the use of intravenous therapy, disorientation in time and space, and the largest contribution to Morse score comes from using disability aids while walking and transferring patients. Greater risk of falling was observed in older neurological patients with ischemic type of stroke and weakness on the left side of the body, patients with longer hospitalization period and those with higher level of care.

The effects of interactive E-learning on delirium recognition ability and delirium-related strain of care among critical care nurses

Background

Nursing care for patients with delirium is very complex and stressful and is associated with considerable care strain for nurses. Delirium recognition is the first step to the prevention and management of delirium and reduction of strain of care. Education is one of the strategies for improving nurses' delirium recognition ability.

Objectives

This study aimed to evaluate the effects of interactive E-learning on delirium recognition ability and delirium-related strain of care among critical care nurses.

Methods

This quasi-experimental study was conducted in 2019 using a two-group pretest-posttest design. Participants were 98 critical care nurses recruited through a census from two hospitals in Iran. They were non-randomly allocated to an intervention and a control group. Study intervention was an interactive E-learning program with four parts on delirium, its prevention, its treatment, and its diagnostic and screening procedures. The program was uploaded on a website and its link was provided to participants in the intervention group. Before and two months after the intervention, data were collected using the Strain of Care for Delirium Index and five case vignettes. For data analysis, the Chi-square, Fisher's exact, independent-sample t, and paired-sample t tests were performed usingthe SPSS software (v. 16.0).

Findings

Groups did not significantly differ from each other regarding the pretest mean scores of delirium recognition ability and strain of care. After the intervention, the mean score of delirium recognition ability in the intervention group was significantly greater and the mean score of strain of care was significantly lower than the control group (P < 0.05).

Conclusion

Interactive E-learning is effective in significantly improving critical care nurses' delirium recognition ability and reducing their strain of care. As nurses' heavy workload and limited free time are among the main barriers to their participation in face-to-face educational programs, interactive E-learning can be used for in-service education.

Probable Delirium and Associated Patient Characteristics in Long-Term Care and Complex Continuing Care: A Population-Based Observational Study

OBJECTIVES

To estimate the prevalence of probable delirium in long-term care (LTC) and complex continuing care (CCC) settings and to describe the resident characteristics associated with probable delirium.

DESIGN

Population-based cross-sectional study using routinely collected administrative health data.

SETTING AND PARTICIPANTS

All LTC and CCC residents in Ontario, Canada, assessed with the Resident Assessment Instrument-Minimum Dataset (RAI-MDS) assessment between July 1, 2016, and December 31, 2016 (LTC n=86,454, CCC n=10,217).

METHODS

Probable delirium was identified via the delirium Clinical Assessment Protocol on the RAI-MDS assessment, which is triggered when individuals display at least 1 of 6 delirium symptoms that are of recent onset and different from their usual functioning. RAI-MDS assessments were linked to demographic and health services utilization databases to ascertain resident demographics and health status. Multivariable logistic regression was used to identify characteristics associated with probable delirium, with adjusted odds ratios (ORs) and 95% confidence intervals (CIs) reported.

RESULTS

Delirium was probable in 3.6% of LTC residents and 16.5% of CCC patients. LTC patients displayed fewer delirium symptoms than CCC patients. The most common delirium symptom in LTC was periods of lethargy (44.6% of delirium cases); in CCC, it was mental function varying over the course of the day (63.5% of delirium cases). The odds of probable delirium varied across individual demographics and health characteristics, with increased health instability having the strongest association with the outcome in both care settings (LTC: OR 30.4, 95% CI 26.2-35.3; CCC: OR 21.0, 95% CI 16.7-26.5 for high vs low instability).

CONCLUSIONS AND IMPLICATIONS

There were differences in the presentation and burden of delirium symptoms between LTC and CCC, potentially reflecting differences in delirium severity or symptom identification. Several risk factors for probable delirium in LTC and CCC were identified that may be amenable to interventions to prevent this highly distressing condition.

The 4 'A's test for detecting delirium in acute medical patients: a diagnostic accuracy study

BACKGROUND

Delirium is a common and serious neuropsychiatric syndrome, usually triggered by illness or drugs. It remains underdetected. One reason for this is a lack of brief, pragmatic assessment tools. The 4 'A's test (Arousal, Attention, Abbreviated Mental Test - 4, Acute change) (4AT) is a screening tool designed for routine use. This project evaluated its usability, diagnostic accuracy and cost.

METHODS

Phase 1 - the usability of the 4AT in routine practice was measured with two surveys and two qualitative studies of health-care professionals, and a review of current clinical use of the 4AT as well as its presence in guidelines and reports. Phase 2 - the 4AT's diagnostic accuracy was assessed in newly admitted acute medical patients aged ≥ 70 years. Its performance was compared with that of the Confusion Assessment Method (CAM; a longer screening tool). The performance of individual 4AT test items was related to cognitive status, length of stay, new institutionalisation, mortality at 12 weeks and outcomes. The method used was a prospective, double-blind diagnostic test accuracy study in emergency departments or in acute general medical wards in three UK sites. Each patient underwent a reference standard delirium assessment and was also randomised to receive an assessment with either the 4AT (n = 421) or the CAM (n = 420). A health economics analysis was also conducted.

RESULTS

Phase 1 found evidence that delirium awareness is increasing, but also that there is a need for education on delirium in general and on the 4AT in particular. Most users reported that the 4AT was useful, and it was in widespread use both in the UK and beyond. No changes to the 4AT were considered necessary. Phase 2 involved 785 individuals who had data for analysis; their mean age was 81.4 (standard deviation 6.4) years, 45% were male, 99% were white and 9% had a known dementia diagnosis. The 4AT (n = 392) had an area under the receiver operating characteristic curve of 0.90. A positive 4AT score (> 3) had a specificity of 95% [95% confidence interval (CI) 92% to 97%] and a sensitivity of 76% (95% CI 61% to 87%) for reference standard delirium. The CAM (n = 382) had a specificity of 100% (95% CI 98% to 100%) and a sensitivity of 40% (95% CI 26% to 57%) in the subset of participants whom it was possible to assess using this. Patients with positive 4AT scores had longer lengths of stay (median 5 days, interquartile range 2.0-14.0 days) than did those with negative 4AT scores (median 2 days, interquartile range 1.0-6.0 days), and they had a higher 12-week mortality rate (16.1% and 9.2%, respectively). The estimated 12-week costs of an initial inpatient stay for patients with delirium were more than double the costs of an inpatient stay for patients without delirium (e.g. in Scotland, £7559, 95% CI £7362 to £7755, vs. £4215, 95% CI £4175 to £4254). The estimated cost of false-positive cases was £4653, of false-negative cases was £8956, and of a missed diagnosis was £2067.

LIMITATIONS

Patients were aged ≥ 70 years and were assessed soon after they were admitted, limiting generalisability. The treatment of patients in accordance with reference standard diagnosis limited the ability to assess comparative cost-effectiveness.

CONCLUSIONS

These findings support the use of the 4AT as a rapid delirium assessment instrument. The 4AT has acceptable diagnostic accuracy for acute older patients aged > 70 years.

FUTURE WORK

Further research should address the real-world implementation of delirium assessment. The 4AT should be tested in other populations.

TRIAL REGISTRATION

Current Controlled Trials ISRCTN53388093.

FUNDING

This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 23, No. 40. See the NIHR Journals Library website for further project information. The funder specified that any new delirium assessment tool should be compared against the CAM, but had no other role in the study design or conduct of the study.

[Delirium at the Hospital - Nursing effort and risk of falling: A Routine data analysis]

Delirium at the Hospital - Nursing effort and risk of falling: A Routine data analysis Abstract. Background: In order to reduce the risks and symptoms of delirium, a total hospital guideline for delirium prevention and management was established. To date, there have been few findings on the implementation of the guideline. Question / Aim: The aim of this study was to analyse data collected by application of the Delirium Observation Screening Scale and on the use of care measures for the prevention and treatment of delirium. As part of this analyses, also associations between the screening outcomes (symptoms of confusion) and the implementation of care measures and the rate of fall events, respectively, were examined in patients aged 70 and older. Method: In a non-experimental correlative cross-sectional study, routine data from the patient administration program PatWeb and the patient documentation system WiCare-Doc were analyzed over a period of four months. Results: Patients with symptoms of confusion received twice the duration of delirium-specific care compared to patients without symptoms of confusion. Their risk of falling was 4.4 times higher and after a fall event they received a significantly longer period of delirium specific care. Conclusions: The results show that the care of patients with delirium is intensive. Time is the prerequisite for care adapted to this patient group. The transfer of knowledge into practice must be strengthened to further enable nurses in implementing the prevention and management of delirium. The development of an "Advanced Practice Nurse Delirium" is also recommended for practice development and as support for every day nursing care.

Evaluation of a method to estimate the point prevalence of cognitive impairment and delirium in a multi-campus Australian health service

OBJECTIVE

To design, test (pilot) and implement a study to estimate the point prevalence of cognitive impairment (CI) and delirium in a multi-site health service.

METHODS

Clinicians were trained to use the 4 A's Test (4AT) to screen for cognitive impairment and delirium, and the 3-minute Diagnostic Interview for the Confusion Assessment Method (3D-CAM) to detect delirium in those with abnormal 4AT results. Outcomes of interest were as follows: (a) rates of cognitive impairment and delirium and (b) feasibility of the approach measured by participation rate, "direct survey activity" time, cost and surveyor preparation.

RESULTS

The rates of cognitive impairment and delirium were 43.8% (245/559) and 16.3% (91/559), respectively. 90.5% (563/622) of eligible adult patients from 25 acute and subacute wards were seen. "Direct survey activities" averaged 14 minutes (range 2-45) and cost $11.48 per patient. Training evaluation indicated additional education in the 4AT and 3D-CAM was needed.

CONCLUSION

Health services could use this streamlined, inexpensive method to estimate the point prevalence of cognitive impairment and delirium.

The Overlap Between Falls and Delirium in Hospitalized Older Adults: A Systematic Review

Falls frequently occur in persons with cognitive impairment, including delirium. This article presents a systematic review of the association between falls and delirium in adults aged 65 years or older. For the studies that compared falls and delirium, the risk ratio was consistently elevated (median RR 4.5, range 1.4-12.6) and statistically significant in all but one study. These results suggest that falls and delirium are inextricably linked. There is a need to further refine fall risk assessment tools and protocols to specifically include delirium for consideration as a risk factor that needs additional assessment and management.

Reconceptualizing delirium as a disorder of complex system failure

Delirium is conceptually elusive and falls outside of conventional biomedical models. Positivist theoretical paradigms of single linear causality are therefore insufficient to provide mechanistic enlightenment. Delirium does, however, share parallels with features of failure within a complex system. Lessons from complex system theory provide important potential healthcare dividends with respect to delirium. The brain is complex and exhibits emergence, a feature of consciousness, which is crucially impacted in delirium. Volatility, non-linear relationships and multiple point failures are cardinal features of complex system failure, thence delirium. An alternative emphasis away from end of chain analysis and oversimplification of cause and an attempt to avoid introduction of new forms of failure in a responsive healthcare environment are lessons from complex system theory. Insights from complex systems provide potentially important mechanistic underpinnings and new lines of research enquiry for delirium. Not least, a fuller understanding of delirium from a complex system viewpoint may help transform management and outcomes in one of the biggest challenges of acute healthcare.

Ogroženost za padce v terciarni bolnišnici

Uvod: Namen raziskave je bil ugotoviti, kakšna je ogroženost za padce odraslih pacientov v akutni  zdravstveni obravnavi ter kakšne so razlike v ogroženosti glede na spol, starost, kraj pacientove obravnave (kliniko) in specialnost stroke ter kategorijo zahtevnosti bolnišnične zdravstvene nege.Metode: Uporabljeno je bilo kvantitativno raziskovanje – presečna opazovalna raziskava. Vzorec (n = 1361) je vključeval odrasle paciente, hospitalizirane v Univerzitetnem kliničnem centru Ljubljana. Podatki so se zbirali na za to posebej  razvitem instrumentu, pri čemer je bila ogroženost za padce vrednotena z Morsejino lestvico. Podatki so se zbirali od oktobra do novembra 2015. Poleg osnovne deskriptivne statistike so bili uporabljeni tudi Mann-Whitneyjev test, test ANOVA in Pearsonov korelacijski test.Rezultati: Raziskava je pokazala, da je v akutni zdravstveni obravnavi v slovenski terciarni bolnišnici zmerno do visoko ogroženih za padce 69,1 % (n = 940) pacientov, od tega je 28,0 % (n = 381) visoko ogroženih. Ogroženost pacientov za padce je pozitivno povezana s starostjo (r = 0,462, p < 0,001). Razlikuje se tudi glede na kliniko (F = 29,210, p < 0,001), specialnost stroke (Z = –5,660, p < 0,001) ter kategorijo zahtevnosti zdravstvene nege (F = 125,464, p < 0,001).Diskusija in zaključek: Pomembno bolj ogroženi so starejši, pacienti, razvrščeni v višje kategorije zahtevnosti bolnišnične zdravstvene nege, ter pacienti, zdravljeni v okviru internističnih strok. Rutinsko ocenjevanje ogroženosti, načrtovanje in izvajanje ukrepov za preprečevanje padcev so temelji zmanjševanja padcev.

Falls and delirium in an acute care setting: A retrospective chart review before and after an organisation-wide interprofessional education

AIM AND OBJECTIVES

To describe and compare identification of delirium, length of stay and discharge locations in two patient samples of falls, before and after an organisation-wide interprofessional delirium education and practice change along with implementation of a policy.

BACKGROUND

Delirium is a common and severe problem for hospitalised patients, with occurrence ranging from 14%-56%, morbidity and mortality from 25%-33%. Recent studies report that 73%-96% of patients who fell during a hospital stay had symptoms of delirium; however, the delirium went undiagnosed and untreated in 75% of the cases.

DESIGN

A descriptive, retrospective observational study using a pre/postdesign.

METHODS

Two chart reviews were performed on patient falls as identified in the hospital safety reporting system in 2009-2010 (98 fallers) and 2012 (108 fallers). An organisation-wide education was planned and implemented with monitoring of policy compliance.

RESULTS

After the education, documentation of the "diagnosis of delirium" and "no evidence of delirium" increased from 14.3%-29.5% and from 27.6%-44.4%. The documentation of "evidence of delirium" decreased significantly from 58.2%-25.9% (p < .001). The confusion assessment method (CAM) identified the diagnosis of delirium at 76% accuracy. The length of stay decreased by 7.3 days. The fall rates in 2011 and 2012 were 3.01 and 2.82 falls per 1,000 patient days and in 2013 decreased to 2.16.

CONCLUSION

The results indicate that improving delirium recognition and treatment through interprofessional education can reduce falls and length of stay.

RELEVANCE TO CLINICAL PRACTICE

The results demonstrate that when staff learn to prevent, identify, manage and document delirium more accurately the fall rate decreases. The practice change, including the use of CAM, was sustained by continuous auditing including re-education, and the re-enforcement of learning along with the implementation of a policy.

Management of delirium across an integrated health system

Facilitating throughput with systems thinking.

Meeting Its Mission: Does Psychosomatics Align With the Mission of Its Parent Organization, the Academy of Psychosomatic Medicine?

BACKGROUND

The vision and mission statements of the Academy of Psychosomatic Medicine (APM) indicate that the APM should promote excellence in clinical care for patients with comorbid psychiatric and general medical conditions by seeking to influence research, public policy, and interdisciplinary education.

OBJECTIVE

As the APM owns the journal, Psychosomatics, we sought to assess whether the APM's journal was fulfilling the vision and mission of its parent organization by reviewing the content of articles published in the journal to determine whether it sufficiently addresses the various clinical care knowledge areas it seeks to influence.

METHODS

We categorized content in all review articles, case reports, and original research articles published in Psychosomatics in 2015 and 2016. Each article was assigned to as many categories that it covered.

RESULTS

In the 163 articles reviewed, the most frequently covered fund of knowledge area was psychiatric morbidity in medical populations (44.2%); among psychiatric disorders, mood disorders (22.1%), psychiatric disorders due to a general medical condition or toxic substance (21.5%), anxiety disorders (14.7%), and delirium (13.5) were the most frequently covered. Of the medical and surgical topics, neurology (19.6%), coping with chronic illness/psychological response to illness (17.8%), toxicology (11.7%), outpatient medicine (10.4%), and cardiology (9.8%) appeared most often.

CONCLUSIONS

Psychosomatics appears to be successfully providing content relevant to the APM's vision and mission statements and to practitioners of psychosomatic medicine.